2 * Copyright (c) 2021 Cisco and/or its affiliates.
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at:
7 * http://www.apache.org/licenses/LICENSE-2.0
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
16 #include <sys/socket.h>
18 #include <vnet/session/application.h>
19 #include <vnet/session/transport.h>
20 #include <vnet/session/session.h>
21 #include <vlib/unix/plugin.h>
22 #include <vpp/app/version.h>
24 #include <vppinfra/lock.h>
26 #include <quic/quic.h>
27 #include <quic/certs.h>
28 #include <quic/error.h>
30 #include <quicly/constants.h>
31 #include <quicly/defaults.h>
34 #include <quic/quic_crypto.h>
36 extern quicly_crypto_engine_t quic_crypto_engine;
38 static char *quic_error_strings[] = {
39 #define quic_error(n,s) s,
40 #include <quic/quic_error.def>
44 #define DEFAULT_MAX_PACKETS_PER_KEY 16777216
46 quic_main_t quic_main;
47 static void quic_update_timer (quic_ctx_t * ctx);
48 static void quic_check_quic_session_connected (quic_ctx_t * ctx);
49 static int quic_reset_connection (u64 udp_session_handle,
50 quic_rx_packet_ctx_t * pctx);
51 static void quic_proto_on_close (u32 ctx_index, u32 thread_index);
53 static quicly_stream_open_t on_stream_open;
54 static quicly_closed_by_remote_t on_closed_by_remote;
55 static quicly_now_t quicly_vpp_now_cb;
60 quic_crypto_context_make_key_from_ctx (clib_bihash_kv_24_8_t * kv,
63 application_t *app = application_get (ctx->parent_app_id);
64 kv->key[0] = ((u64) ctx->ckpair_index) << 32 | (u64) ctx->crypto_engine;
65 kv->key[1] = app->sm_properties.rx_fifo_size - 1;
66 kv->key[2] = app->sm_properties.tx_fifo_size - 1;
70 quic_crypto_context_make_key_from_crctx (clib_bihash_kv_24_8_t * kv,
71 crypto_context_t * crctx)
73 quic_crypto_context_data_t *data =
74 (quic_crypto_context_data_t *) crctx->data;
75 kv->key[0] = ((u64) crctx->ckpair_index) << 32 | (u64) crctx->crypto_engine;
76 kv->key[1] = data->quicly_ctx.transport_params.max_stream_data.bidi_local;
77 kv->key[2] = data->quicly_ctx.transport_params.max_stream_data.bidi_remote;
81 quic_crypto_context_free_if_needed (crypto_context_t * crctx, u8 thread_index)
83 quic_main_t *qm = &quic_main;
84 clib_bihash_kv_24_8_t kv;
85 if (crctx->n_subscribers)
87 quic_crypto_context_make_key_from_crctx (&kv, crctx);
88 clib_bihash_add_del_24_8 (&qm->wrk_ctx[thread_index].crypto_context_hash,
89 &kv, 0 /* is_add */ );
90 clib_mem_free (crctx->data);
91 pool_put (qm->wrk_ctx[thread_index].crypto_ctx_pool, crctx);
95 quic_app_cert_key_pair_delete_callback (app_cert_key_pair_t * ckpair)
97 quic_main_t *qm = &quic_main;
98 crypto_context_t *crctx;
99 clib_bihash_kv_24_8_t kv;
100 vlib_thread_main_t *vtm = vlib_get_thread_main ();
101 int num_threads = 1 /* main thread */ + vtm->n_threads;
104 for (i = 0; i < num_threads; i++)
107 pool_foreach (crctx, qm->wrk_ctx[i].crypto_ctx_pool) {
108 if (crctx->ckpair_index == ckpair->cert_key_index)
110 quic_crypto_context_make_key_from_crctx (&kv, crctx);
111 clib_bihash_add_del_24_8 (&qm->wrk_ctx[i].crypto_context_hash, &kv, 0 /* is_add */ );
119 static crypto_context_t *
120 quic_crypto_context_alloc (u8 thread_index)
122 quic_main_t *qm = &quic_main;
123 crypto_context_t *crctx;
126 pool_get (qm->wrk_ctx[thread_index].crypto_ctx_pool, crctx);
127 clib_memset (crctx, 0, sizeof (*crctx));
128 idx = (crctx - qm->wrk_ctx[thread_index].crypto_ctx_pool);
129 crctx->ctx_index = ((u32) thread_index) << 24 | idx;
134 static crypto_context_t *
135 quic_crypto_context_get (u32 cr_index, u32 thread_index)
137 quic_main_t *qm = &quic_main;
138 ASSERT (cr_index >> 24 == thread_index);
139 return pool_elt_at_index (qm->wrk_ctx[thread_index].crypto_ctx_pool,
140 cr_index & 0x00ffffff);
143 static clib_error_t *
144 quic_list_crypto_context_command_fn (vlib_main_t * vm,
145 unformat_input_t * input,
146 vlib_cli_command_t * cmd)
148 quic_main_t *qm = &quic_main;
149 crypto_context_t *crctx;
150 vlib_thread_main_t *vtm = vlib_get_thread_main ();
151 int i, num_threads = 1 /* main thread */ + vtm->n_threads;
152 for (i = 0; i < num_threads; i++)
155 pool_foreach (crctx, qm->wrk_ctx[i].crypto_ctx_pool) {
156 vlib_cli_output (vm, "[%d][Q]%U", i, format_crypto_context, crctx);
163 static clib_error_t *
164 quic_set_max_packets_per_key_fn (vlib_main_t * vm,
165 unformat_input_t * input,
166 vlib_cli_command_t * cmd)
168 quic_main_t *qm = &quic_main;
169 unformat_input_t _line_input, *line_input = &_line_input;
172 if (!unformat_user (input, unformat_line_input, line_input))
175 while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
177 if (unformat (line_input, "%U", unformat_memory_size, &tmp))
179 qm->max_packets_per_key = tmp;
182 return clib_error_return (0, "unknown input '%U'",
183 format_unformat_error, line_input);
189 static clib_error_t *
190 quic_set_cc_fn (vlib_main_t *vm, unformat_input_t *input,
191 vlib_cli_command_t *cmd)
193 unformat_input_t _line_input, *line_input = &_line_input;
194 quic_main_t *qm = &quic_main;
197 if (!unformat_user (input, unformat_line_input, line_input))
200 while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
202 if (unformat (line_input, "reno"))
203 qm->default_quic_cc = QUIC_CC_RENO;
204 else if (unformat (line_input, "cubic"))
205 qm->default_quic_cc = QUIC_CC_CUBIC;
208 e = clib_error_return (0, "unknown input '%U'",
209 format_unformat_error, line_input);
214 unformat_free (line_input);
219 quic_release_crypto_context (u32 crypto_context_index, u8 thread_index)
221 crypto_context_t *crctx;
222 crctx = quic_crypto_context_get (crypto_context_index, thread_index);
223 crctx->n_subscribers--;
224 quic_crypto_context_free_if_needed (crctx, thread_index);
228 quic_init_crypto_context (crypto_context_t * crctx, quic_ctx_t * ctx)
230 quic_main_t *qm = &quic_main;
231 quicly_context_t *quicly_ctx;
232 ptls_iovec_t key_vec;
233 app_cert_key_pair_t *ckpair;
235 quic_crypto_context_data_t *data;
236 ptls_context_t *ptls_ctx;
238 QUIC_DBG (2, "Init quic crctx %d thread %d", crctx->ctx_index,
239 ctx->c_thread_index);
241 data = clib_mem_alloc (sizeof (*data));
242 /* picotls depends on data being zeroed */
243 clib_memset (data, 0, sizeof (*data));
244 crctx->data = (void *) data;
245 quicly_ctx = &data->quicly_ctx;
246 ptls_ctx = &data->ptls_ctx;
248 ptls_ctx->random_bytes = ptls_openssl_random_bytes;
249 ptls_ctx->get_time = &ptls_get_time;
250 ptls_ctx->key_exchanges = ptls_openssl_key_exchanges;
251 ptls_ctx->cipher_suites = qm->quic_ciphers[ctx->crypto_engine];
252 ptls_ctx->certificates.list = NULL;
253 ptls_ctx->certificates.count = 0;
254 ptls_ctx->esni = NULL;
255 ptls_ctx->on_client_hello = NULL;
256 ptls_ctx->emit_certificate = NULL;
257 ptls_ctx->sign_certificate = NULL;
258 ptls_ctx->verify_certificate = NULL;
259 ptls_ctx->ticket_lifetime = 86400;
260 ptls_ctx->max_early_data_size = 8192;
261 ptls_ctx->hkdf_label_prefix__obsolete = NULL;
262 ptls_ctx->require_dhe_on_psk = 1;
263 ptls_ctx->encrypt_ticket = &qm->session_cache.super;
264 clib_memcpy (quicly_ctx, &quicly_spec_context, sizeof (quicly_context_t));
266 quicly_ctx->max_packets_per_key = qm->max_packets_per_key;
267 quicly_ctx->tls = ptls_ctx;
268 quicly_ctx->stream_open = &on_stream_open;
269 quicly_ctx->closed_by_remote = &on_closed_by_remote;
270 quicly_ctx->now = &quicly_vpp_now_cb;
271 quicly_amend_ptls_context (quicly_ctx->tls);
273 if (qm->vnet_crypto_enabled &&
274 qm->default_crypto_engine == CRYPTO_ENGINE_VPP)
275 quicly_ctx->crypto_engine = &quic_crypto_engine;
277 quicly_ctx->crypto_engine = &quicly_default_crypto_engine;
279 quicly_ctx->transport_params.max_data = QUIC_INT_MAX;
280 quicly_ctx->transport_params.max_streams_uni = (uint64_t) 1 << 60;
281 quicly_ctx->transport_params.max_streams_bidi = (uint64_t) 1 << 60;
282 quicly_ctx->transport_params.max_idle_timeout = qm->connection_timeout;
284 if (qm->default_quic_cc == QUIC_CC_CUBIC)
285 quicly_ctx->init_cc = &quicly_cc_cubic_init;
286 else if (qm->default_quic_cc == QUIC_CC_RENO)
287 quicly_ctx->init_cc = &quicly_cc_reno_init;
289 app = application_get (ctx->parent_app_id);
290 quicly_ctx->transport_params.max_stream_data.bidi_local =
291 app->sm_properties.rx_fifo_size - 1;
292 quicly_ctx->transport_params.max_stream_data.bidi_remote =
293 app->sm_properties.tx_fifo_size - 1;
294 quicly_ctx->transport_params.max_stream_data.uni = QUIC_INT_MAX;
296 quicly_ctx->transport_params.max_udp_payload_size = QUIC_MAX_PACKET_SIZE;
297 if (!app->quic_iv_set)
299 ptls_openssl_random_bytes (app->quic_iv, QUIC_IV_LEN - 1);
300 app->quic_iv[QUIC_IV_LEN - 1] = 0;
301 app->quic_iv_set = 1;
304 clib_memcpy (data->cid_key, app->quic_iv, QUIC_IV_LEN);
305 key_vec = ptls_iovec_init (data->cid_key, QUIC_IV_LEN);
306 quicly_ctx->cid_encryptor =
307 quicly_new_default_cid_encryptor (&ptls_openssl_bfecb,
308 &ptls_openssl_aes128ecb,
309 &ptls_openssl_sha256, key_vec);
311 ckpair = app_cert_key_pair_get_if_valid (crctx->ckpair_index);
312 if (!ckpair || !ckpair->key || !ckpair->cert)
314 QUIC_DBG (1, "Wrong ckpair id %d\n", crctx->ckpair_index);
317 if (load_bio_private_key (quicly_ctx->tls, (char *) ckpair->key))
319 QUIC_DBG (1, "failed to read private key from app configuration\n");
322 if (load_bio_certificate_chain (quicly_ctx->tls, (char *) ckpair->cert))
324 QUIC_DBG (1, "failed to load certificate\n");
332 quic_acquire_crypto_context (quic_ctx_t * ctx)
334 quic_main_t *qm = &quic_main;
335 crypto_context_t *crctx;
336 clib_bihash_kv_24_8_t kv;
338 if (ctx->crypto_engine == CRYPTO_ENGINE_NONE)
340 QUIC_DBG (2, "No crypto engine specified, using %d",
341 qm->default_crypto_engine);
342 ctx->crypto_engine = qm->default_crypto_engine;
344 if (!clib_bitmap_get (qm->available_crypto_engines, ctx->crypto_engine))
346 QUIC_DBG (1, "Quic does not support crypto engine %d",
348 return SESSION_E_NOCRYPTOENG;
351 /* Check for exisiting crypto ctx */
352 quic_crypto_context_make_key_from_ctx (&kv, ctx);
353 if (clib_bihash_search_24_8
354 (&qm->wrk_ctx[ctx->c_thread_index].crypto_context_hash, &kv, &kv) == 0)
356 crctx = quic_crypto_context_get (kv.value, ctx->c_thread_index);
357 QUIC_DBG (2, "Found exisiting crypto context %d", kv.value);
358 ctx->crypto_context_index = kv.value;
359 crctx->n_subscribers++;
363 crctx = quic_crypto_context_alloc (ctx->c_thread_index);
364 ctx->crypto_context_index = crctx->ctx_index;
365 kv.value = crctx->ctx_index;
366 crctx->crypto_engine = ctx->crypto_engine;
367 crctx->ckpair_index = ctx->ckpair_index;
368 if (quic_init_crypto_context (crctx, ctx))
370 if (vnet_app_add_cert_key_interest (ctx->ckpair_index, qm->app_index))
372 crctx->n_subscribers++;
373 clib_bihash_add_del_24_8 (&qm->
374 wrk_ctx[ctx->c_thread_index].crypto_context_hash,
375 &kv, 1 /* is_add */ );
379 quic_crypto_context_free_if_needed (crctx, ctx->c_thread_index);
380 return SESSION_E_NOCRYPTOCKP;
383 /* Helper functions */
386 quic_ctx_alloc (u32 thread_index)
388 quic_main_t *qm = &quic_main;
391 pool_get_aligned_safe (qm->ctx_pool[thread_index], ctx,
392 CLIB_CACHE_LINE_BYTES);
394 clib_memset (ctx, 0, sizeof (quic_ctx_t));
395 ctx->c_thread_index = thread_index;
396 ctx->timer_handle = QUIC_TIMER_HANDLE_INVALID;
397 QUIC_DBG (3, "Allocated quic_ctx %u on thread %u",
398 ctx - qm->ctx_pool[thread_index], thread_index);
399 return ctx - qm->ctx_pool[thread_index];
403 quic_ctx_free (quic_ctx_t * ctx)
405 QUIC_DBG (2, "Free ctx %u %x", ctx->c_thread_index, ctx->c_c_index);
406 u32 thread_index = ctx->c_thread_index;
407 QUIC_ASSERT (ctx->timer_handle == QUIC_TIMER_HANDLE_INVALID);
409 clib_memset (ctx, 0xfb, sizeof (*ctx));
410 pool_put (quic_main.ctx_pool[thread_index], ctx);
414 quic_ctx_get (u32 ctx_index, u32 thread_index)
416 return pool_elt_at_index (quic_main.ctx_pool[thread_index], ctx_index);
420 quic_ctx_get_if_valid (u32 ctx_index, u32 thread_index)
422 if (pool_is_free_index (quic_main.ctx_pool[thread_index], ctx_index))
424 return pool_elt_at_index (quic_main.ctx_pool[thread_index], ctx_index);
428 quic_get_conn_ctx (quicly_conn_t * conn)
431 conn_data = (u64) * quicly_get_data (conn);
432 return quic_ctx_get (conn_data & UINT32_MAX, conn_data >> 32);
436 quic_store_conn_ctx (quicly_conn_t * conn, quic_ctx_t * ctx)
438 *quicly_get_data (conn) =
439 (void *) (((u64) ctx->c_thread_index) << 32 | (u64) ctx->c_c_index);
443 quic_ctx_is_stream (quic_ctx_t * ctx)
445 return (ctx->flags & QUIC_F_IS_STREAM);
449 quic_ctx_is_listener (quic_ctx_t * ctx)
451 return (ctx->flags & QUIC_F_IS_LISTENER);
455 quic_ctx_is_conn (quic_ctx_t * ctx)
457 return !(quic_ctx_is_listener (ctx) || quic_ctx_is_stream (ctx));
460 static inline session_t *
461 get_stream_session_and_ctx_from_stream (quicly_stream_t * stream,
464 quic_stream_data_t *stream_data;
466 stream_data = (quic_stream_data_t *) stream->data;
467 *ctx = quic_ctx_get (stream_data->ctx_id, stream_data->thread_index);
468 return session_get ((*ctx)->c_s_index, stream_data->thread_index);
472 quic_make_connection_key (clib_bihash_kv_16_8_t * kv,
473 const quicly_cid_plaintext_t * id)
475 kv->key[0] = ((u64) id->master_id) << 32 | (u64) id->thread_id;
476 kv->key[1] = id->node_id;
480 quic_sendable_packet_count (session_t * udp_session)
483 u32 packet_size = QUIC_MAX_PACKET_SIZE + SESSION_CONN_HDR_LEN;
484 max_enqueue = svm_fifo_max_enqueue (udp_session->tx_fifo);
485 return clib_min (max_enqueue / packet_size, QUIC_SEND_PACKET_VEC_SIZE);
488 static quicly_context_t *
489 quic_get_quicly_ctx_from_ctx (quic_ctx_t * ctx)
491 crypto_context_t *crctx =
492 quic_crypto_context_get (ctx->crypto_context_index, ctx->c_thread_index);
493 quic_crypto_context_data_t *data =
494 (quic_crypto_context_data_t *) crctx->data;
495 return &data->quicly_ctx;
498 static quicly_context_t *
499 quic_get_quicly_ctx_from_udp (u64 udp_session_handle)
501 session_t *udp_session = session_get_from_handle (udp_session_handle);
503 quic_ctx_get (udp_session->opaque, udp_session->thread_index);
504 return quic_get_quicly_ctx_from_ctx (ctx);
508 quic_set_udp_tx_evt (session_t * udp_session)
511 if (svm_fifo_set_event (udp_session->tx_fifo))
512 rv = session_send_io_evt_to_thread (udp_session->tx_fifo,
514 if (PREDICT_FALSE (rv))
515 clib_warning ("Event enqueue errored %d", rv);
519 quic_stop_ctx_timer (quic_ctx_t * ctx)
521 tw_timer_wheel_1t_3w_1024sl_ov_t *tw;
522 if (ctx->timer_handle == QUIC_TIMER_HANDLE_INVALID)
524 tw = &quic_main.wrk_ctx[ctx->c_thread_index].timer_wheel;
525 tw_timer_stop_1t_3w_1024sl_ov (tw, ctx->timer_handle);
526 ctx->timer_handle = QUIC_TIMER_HANDLE_INVALID;
527 QUIC_DBG (4, "Stopping timer for ctx %u", ctx->c_c_index);
530 /* QUIC protocol actions */
533 quic_ack_rx_data (session_t * stream_session)
538 quicly_stream_t *stream;
539 quic_stream_data_t *stream_data;
541 sctx = quic_ctx_get (stream_session->connection_index,
542 stream_session->thread_index);
543 QUIC_ASSERT (quic_ctx_is_stream (sctx));
544 stream = sctx->stream;
545 stream_data = (quic_stream_data_t *) stream->data;
547 f = stream_session->rx_fifo;
548 max_deq = svm_fifo_max_dequeue (f);
550 QUIC_ASSERT (stream_data->app_rx_data_len >= max_deq);
551 quicly_stream_sync_recvbuf (stream, stream_data->app_rx_data_len - max_deq);
552 QUIC_DBG (3, "Acking %u bytes", stream_data->app_rx_data_len - max_deq);
553 stream_data->app_rx_data_len = max_deq;
557 quic_disconnect_transport (quic_ctx_t * ctx)
559 QUIC_DBG (2, "Disconnecting transport 0x%lx", ctx->udp_session_handle);
560 vnet_disconnect_args_t a = {
561 .handle = ctx->udp_session_handle,
562 .app_index = quic_main.app_index,
565 if (vnet_disconnect_session (&a))
566 clib_warning ("UDP session 0x%lx disconnect errored",
567 ctx->udp_session_handle);
571 quic_connection_delete (quic_ctx_t * ctx)
573 clib_bihash_kv_16_8_t kv;
576 if (ctx->conn == NULL)
578 QUIC_DBG (2, "Skipping redundant delete of connection %u",
582 QUIC_DBG (2, "Deleting connection %u", ctx->c_c_index);
584 QUIC_ASSERT (!quic_ctx_is_stream (ctx));
585 quic_stop_ctx_timer (ctx);
587 /* Delete the connection from the connection map */
590 quic_make_connection_key (&kv, quicly_get_master_id (conn));
591 QUIC_DBG (2, "Deleting conn with id %lu %lu from map", kv.key[0],
593 clib_bihash_add_del_16_8 (&quic_main.connection_hash, &kv, 0 /* is_add */ );
595 quic_disconnect_transport (ctx);
599 session_transport_delete_notify (&ctx->connection);
603 quic_increment_counter (u8 evt, u8 val)
605 vlib_main_t *vm = vlib_get_main ();
606 vlib_node_increment_counter (vm, quic_input_node.index, evt, val);
610 * Called when quicly return an error
611 * This function interacts tightly with quic_proto_on_close
614 quic_connection_closed (quic_ctx_t * ctx)
616 QUIC_DBG (2, "QUIC connection %u/%u closed", ctx->c_thread_index,
619 /* TODO if connection is not established, just delete the session? */
620 /* Actually should send connect or accept error */
622 switch (ctx->conn_state)
624 case QUIC_CONN_STATE_READY:
625 /* Error on an opened connection (timeout...)
626 This puts the session in closing state, we should receive a notification
627 when the app has closed its session */
628 session_transport_reset_notify (&ctx->connection);
629 /* This ensures we delete the connection when the app confirms the close */
630 ctx->conn_state = QUIC_CONN_STATE_PASSIVE_CLOSING_QUIC_CLOSED;
632 case QUIC_CONN_STATE_PASSIVE_CLOSING:
633 ctx->conn_state = QUIC_CONN_STATE_PASSIVE_CLOSING_QUIC_CLOSED;
634 /* quic_proto_on_close will eventually be called when the app confirms the close
635 , we delete the connection at that point */
637 case QUIC_CONN_STATE_PASSIVE_CLOSING_APP_CLOSED:
638 /* App already confirmed close, we can delete the connection */
639 quic_connection_delete (ctx);
641 case QUIC_CONN_STATE_OPENED:
642 case QUIC_CONN_STATE_HANDSHAKE:
643 case QUIC_CONN_STATE_ACTIVE_CLOSING:
644 quic_connection_delete (ctx);
647 QUIC_DBG (0, "BUG %d", ctx->conn_state);
653 quic_send_datagram (session_t *udp_session, struct iovec *packet,
654 quicly_address_t *dest, quicly_address_t *src)
656 u32 max_enqueue, len;
657 session_dgram_hdr_t hdr;
659 transport_connection_t *tc;
662 len = packet->iov_len;
663 f = udp_session->tx_fifo;
664 tc = session_get_transport (udp_session);
665 max_enqueue = svm_fifo_max_enqueue (f);
666 if (max_enqueue < SESSION_CONN_HDR_LEN + len)
668 QUIC_ERR ("Too much data to send, max_enqueue %u, len %u",
669 max_enqueue, len + SESSION_CONN_HDR_LEN);
670 return QUIC_ERROR_FULL_FIFO;
673 /* Build packet header for fifo */
674 hdr.data_length = len;
676 hdr.is_ip4 = tc->is_ip4;
677 clib_memcpy (&hdr.lcl_ip, &tc->lcl_ip, sizeof (ip46_address_t));
678 hdr.lcl_port = tc->lcl_port;
681 /* Read dest address from quicly-provided sockaddr */
684 QUIC_ASSERT (dest->sa.sa_family == AF_INET);
685 struct sockaddr_in *sa4 = (struct sockaddr_in *) &dest->sa;
686 hdr.rmt_port = sa4->sin_port;
687 hdr.rmt_ip.ip4.as_u32 = sa4->sin_addr.s_addr;
691 QUIC_ASSERT (dest->sa.sa_family == AF_INET6);
692 struct sockaddr_in6 *sa6 = (struct sockaddr_in6 *) &dest->sa;
693 hdr.rmt_port = sa6->sin6_port;
694 clib_memcpy_fast (&hdr.rmt_ip.ip6, &sa6->sin6_addr, 16);
697 svm_fifo_seg_t segs[2] = { { (u8 *) &hdr, sizeof (hdr) },
698 { packet->iov_base, len } };
700 ret = svm_fifo_enqueue_segments (f, segs, 2, 0 /* allow partial */);
701 if (PREDICT_FALSE (ret < 0))
703 QUIC_ERR ("Not enough space to enqueue dgram");
704 return QUIC_ERROR_FULL_FIFO;
707 quic_increment_counter (QUIC_ERROR_TX_PACKETS, 1);
713 quic_send_packets (quic_ctx_t * ctx)
715 struct iovec packets[QUIC_SEND_PACKET_VEC_SIZE];
717 buf[QUIC_SEND_PACKET_VEC_SIZE * quic_get_quicly_ctx_from_ctx (ctx)
718 ->transport_params.max_udp_payload_size];
719 session_t *udp_session;
721 size_t num_packets, i, max_packets;
722 quicly_address_t dest, src;
726 /* We have sctx, get qctx */
727 if (quic_ctx_is_stream (ctx))
728 ctx = quic_ctx_get (ctx->quic_connection_ctx_id, ctx->c_thread_index);
730 QUIC_ASSERT (!quic_ctx_is_stream (ctx));
732 udp_session = session_get_from_handle_if_valid (ctx->udp_session_handle);
742 /* TODO : quicly can assert it can send min_packets up to 2 */
743 max_packets = quic_sendable_packet_count (udp_session);
747 num_packets = max_packets;
748 if ((err = quicly_send (conn, &dest, &src, packets, &num_packets, buf,
752 for (i = 0; i != num_packets; ++i)
756 quic_send_datagram (udp_session, &packets[i], &dest, &src)))
760 n_sent += num_packets;
762 while (num_packets > 0 && num_packets == max_packets);
764 quic_set_udp_tx_evt (udp_session);
766 QUIC_DBG (3, "%u[TX] %u[RX]", svm_fifo_max_dequeue (udp_session->tx_fifo),
767 svm_fifo_max_dequeue (udp_session->rx_fifo));
768 quic_update_timer (ctx);
772 if (err && err != QUICLY_ERROR_PACKET_IGNORED
773 && err != QUICLY_ERROR_FREE_CONNECTION)
774 clib_warning ("Quic error '%U'.", quic_format_err, err);
775 quic_connection_closed (ctx);
779 /* Quicly callbacks */
782 quic_on_stream_destroy (quicly_stream_t * stream, int err)
784 quic_stream_data_t *stream_data = (quic_stream_data_t *) stream->data;
785 quic_ctx_t *sctx = quic_ctx_get (stream_data->ctx_id,
786 stream_data->thread_index);
787 session_t *stream_session = session_get (sctx->c_s_index,
788 sctx->c_thread_index);
789 QUIC_DBG (2, "DESTROYED_STREAM: session 0x%lx (%U)",
790 session_handle (stream_session), quic_format_err, err);
792 stream_session->session_state = SESSION_STATE_CLOSED;
793 session_transport_delete_notify (&sctx->connection);
795 quic_increment_counter (QUIC_ERROR_CLOSED_STREAM, 1);
796 quic_ctx_free (sctx);
797 clib_mem_free (stream->data);
801 quic_on_stop_sending (quicly_stream_t * stream, int err)
804 quic_stream_data_t *stream_data = (quic_stream_data_t *) stream->data;
805 quic_ctx_t *sctx = quic_ctx_get (stream_data->ctx_id,
806 stream_data->thread_index);
807 session_t *stream_session = session_get (sctx->c_s_index,
808 sctx->c_thread_index);
809 clib_warning ("(NOT IMPLEMENTD) STOP_SENDING: session 0x%lx (%U)",
810 session_handle (stream_session), quic_format_err, err);
812 /* TODO : handle STOP_SENDING */
816 quic_on_receive_reset (quicly_stream_t * stream, int err)
818 quic_stream_data_t *stream_data = (quic_stream_data_t *) stream->data;
819 quic_ctx_t *sctx = quic_ctx_get (stream_data->ctx_id,
820 stream_data->thread_index);
822 session_t *stream_session = session_get (sctx->c_s_index,
823 sctx->c_thread_index);
824 clib_warning ("RESET_STREAM: session 0x%lx (%U)",
825 session_handle (stream_session), quic_format_err, err);
827 session_transport_closing_notify (&sctx->connection);
831 quic_on_receive (quicly_stream_t * stream, size_t off, const void *src,
834 QUIC_DBG (3, "received data: %lu bytes, offset %lu", len, off);
837 session_t *stream_session;
838 app_worker_t *app_wrk;
840 quic_stream_data_t *stream_data;
846 stream_data = (quic_stream_data_t *) stream->data;
847 sctx = quic_ctx_get (stream_data->ctx_id, stream_data->thread_index);
848 stream_session = session_get (sctx->c_s_index, stream_data->thread_index);
849 f = stream_session->rx_fifo;
851 max_enq = svm_fifo_max_enqueue_prod (f);
852 QUIC_DBG (3, "Enqueuing %u at off %u in %u space", len, off, max_enq);
853 /* Handle duplicate packet/chunk from quicly */
854 if (off < stream_data->app_rx_data_len)
856 QUIC_DBG (3, "Session [idx %u, app_wrk %u, thread %u, rx-fifo 0x%llx]: "
857 "DUPLICATE PACKET (max_enq %u, len %u, "
858 "app_rx_data_len %u, off %u, ToBeNQ %u)",
859 stream_session->session_index,
860 stream_session->app_wrk_index,
861 stream_session->thread_index, f,
862 max_enq, len, stream_data->app_rx_data_len, off,
863 off - stream_data->app_rx_data_len + len);
866 if (PREDICT_FALSE ((off - stream_data->app_rx_data_len + len) > max_enq))
868 QUIC_ERR ("Session [idx %u, app_wrk %u, thread %u, rx-fifo 0x%llx]: "
869 "RX FIFO IS FULL (max_enq %u, len %u, "
870 "app_rx_data_len %u, off %u, ToBeNQ %u)",
871 stream_session->session_index,
872 stream_session->app_wrk_index,
873 stream_session->thread_index, f,
874 max_enq, len, stream_data->app_rx_data_len, off,
875 off - stream_data->app_rx_data_len + len);
876 return; /* This shouldn't happen */
878 if (off == stream_data->app_rx_data_len)
880 /* Streams live on the same thread so (f, stream_data) should stay consistent */
881 rlen = svm_fifo_enqueue (f, len, (u8 *) src);
882 if (PREDICT_FALSE (rlen < 0))
890 QUIC_DBG (3, "Session [idx %u, app_wrk %u, ti %u, rx-fifo 0x%llx]: "
891 "Enqueuing %u (rlen %u) at off %u in %u space, ",
892 stream_session->session_index,
893 stream_session->app_wrk_index,
894 stream_session->thread_index, f, len, rlen, off, max_enq);
895 stream_data->app_rx_data_len += rlen;
896 QUIC_ASSERT (rlen >= len);
897 app_wrk = app_worker_get_if_valid (stream_session->app_wrk_index);
898 if (PREDICT_TRUE (app_wrk != 0))
900 rv = app_worker_lock_and_send_event (app_wrk, stream_session,
903 QUIC_ERR ("Failed to ping app for RX");
905 quic_ack_rx_data (stream_session);
909 rlen = svm_fifo_enqueue_with_offset (f,
910 off - stream_data->app_rx_data_len,
912 if (PREDICT_FALSE (rlen < 0))
920 QUIC_ASSERT (rlen == 0);
926 quic_fifo_egress_shift (quicly_stream_t * stream, size_t delta)
928 quic_stream_data_t *stream_data;
929 session_t *stream_session;
934 stream_data = (quic_stream_data_t *) stream->data;
935 stream_session = get_stream_session_and_ctx_from_stream (stream, &ctx);
936 f = stream_session->tx_fifo;
938 QUIC_ASSERT (stream_data->app_tx_data_len >= delta);
939 stream_data->app_tx_data_len -= delta;
940 ctx->bytes_written += delta;
941 rv = svm_fifo_dequeue_drop (f, delta);
942 QUIC_ASSERT (rv == delta);
944 rv = quicly_stream_sync_sendbuf (stream, 0);
949 quic_fifo_egress_emit (quicly_stream_t * stream, size_t off, void *dst,
950 size_t * len, int *wrote_all)
952 quic_stream_data_t *stream_data;
954 session_t *stream_session;
958 stream_data = (quic_stream_data_t *) stream->data;
959 stream_session = get_stream_session_and_ctx_from_stream (stream, &ctx);
960 f = stream_session->tx_fifo;
962 QUIC_DBG (3, "Emitting %u, offset %u", *len, off);
964 deq_max = svm_fifo_max_dequeue_cons (f);
965 QUIC_ASSERT (off <= deq_max);
966 if (off + *len < deq_max)
973 *len = deq_max - off;
975 QUIC_ASSERT (*len > 0);
977 if (off + *len > stream_data->app_tx_data_len)
978 stream_data->app_tx_data_len = off + *len;
980 svm_fifo_peek (f, off, *len, dst);
983 static const quicly_stream_callbacks_t quic_stream_callbacks = {
984 .on_destroy = quic_on_stream_destroy,
985 .on_send_shift = quic_fifo_egress_shift,
986 .on_send_emit = quic_fifo_egress_emit,
987 .on_send_stop = quic_on_stop_sending,
988 .on_receive = quic_on_receive,
989 .on_receive_reset = quic_on_receive_reset
993 quic_on_stream_open (quicly_stream_open_t * self, quicly_stream_t * stream)
995 /* Return code for this function ends either
996 * - in quicly_receive : if not QUICLY_ERROR_PACKET_IGNORED, will close connection
997 * - in quicly_open_stream, returned directly
1000 session_t *stream_session, *quic_session;
1001 quic_stream_data_t *stream_data;
1002 app_worker_t *app_wrk;
1003 quic_ctx_t *qctx, *sctx;
1007 QUIC_DBG (2, "on_stream_open called");
1008 stream->data = clib_mem_alloc (sizeof (quic_stream_data_t));
1009 stream->callbacks = &quic_stream_callbacks;
1010 /* Notify accept on parent qsession, but only if this is not a locally
1011 * initiated stream */
1012 if (quicly_stream_is_self_initiated (stream))
1015 sctx_id = quic_ctx_alloc (vlib_get_thread_index ());
1016 qctx = quic_get_conn_ctx (stream->conn);
1018 /* Might need to signal that the connection is ready if the first thing the
1019 * server does is open a stream */
1020 quic_check_quic_session_connected (qctx);
1021 /* ctx might be invalidated */
1022 qctx = quic_get_conn_ctx (stream->conn);
1024 stream_session = session_alloc (qctx->c_thread_index);
1025 QUIC_DBG (2, "ACCEPTED stream_session 0x%lx ctx %u",
1026 session_handle (stream_session), sctx_id);
1027 sctx = quic_ctx_get (sctx_id, qctx->c_thread_index);
1028 sctx->parent_app_wrk_id = qctx->parent_app_wrk_id;
1029 sctx->parent_app_id = qctx->parent_app_id;
1030 sctx->quic_connection_ctx_id = qctx->c_c_index;
1031 sctx->c_c_index = sctx_id;
1032 sctx->c_s_index = stream_session->session_index;
1033 sctx->stream = stream;
1034 sctx->c_flags |= TRANSPORT_CONNECTION_F_NO_LOOKUP;
1035 sctx->flags |= QUIC_F_IS_STREAM;
1036 sctx->crypto_context_index = qctx->crypto_context_index;
1037 if (quicly_stream_is_unidirectional (stream->stream_id))
1038 stream_session->flags |= SESSION_F_UNIDIRECTIONAL;
1040 stream_data = (quic_stream_data_t *) stream->data;
1041 stream_data->ctx_id = sctx_id;
1042 stream_data->thread_index = sctx->c_thread_index;
1043 stream_data->app_rx_data_len = 0;
1044 stream_data->app_tx_data_len = 0;
1046 sctx->c_s_index = stream_session->session_index;
1047 stream_session->session_state = SESSION_STATE_CREATED;
1048 stream_session->app_wrk_index = sctx->parent_app_wrk_id;
1049 stream_session->connection_index = sctx->c_c_index;
1050 stream_session->session_type =
1051 session_type_from_proto_and_ip (TRANSPORT_PROTO_QUIC, qctx->udp_is_ip4);
1052 quic_session = session_get (qctx->c_s_index, qctx->c_thread_index);
1053 stream_session->listener_handle = listen_session_get_handle (quic_session);
1055 app_wrk = app_worker_get (stream_session->app_wrk_index);
1056 if ((rv = app_worker_init_connected (app_wrk, stream_session)))
1058 QUIC_ERR ("failed to allocate fifos");
1059 quicly_reset_stream (stream, QUIC_APP_ALLOCATION_ERROR);
1060 return 0; /* Frame is still valid */
1062 svm_fifo_add_want_deq_ntf (stream_session->rx_fifo,
1063 SVM_FIFO_WANT_DEQ_NOTIF_IF_FULL |
1064 SVM_FIFO_WANT_DEQ_NOTIF_IF_EMPTY);
1066 if ((rv = app_worker_accept_notify (app_wrk, stream_session)))
1068 QUIC_ERR ("failed to notify accept worker app");
1069 quicly_reset_stream (stream, QUIC_APP_ACCEPT_NOTIFY_ERROR);
1070 return 0; /* Frame is still valid */
1077 quic_on_closed_by_remote (quicly_closed_by_remote_t *self, quicly_conn_t *conn,
1078 int code, uint64_t frame_type, const char *reason,
1081 quic_ctx_t *ctx = quic_get_conn_ctx (conn);
1083 session_t *quic_session = session_get (ctx->c_s_index, ctx->c_thread_index);
1084 clib_warning ("Session 0x%lx closed by peer (%U) %.*s ",
1085 session_handle (quic_session), quic_format_err, code,
1086 reason_len, reason);
1088 ctx->conn_state = QUIC_CONN_STATE_PASSIVE_CLOSING;
1089 session_transport_closing_notify (&ctx->connection);
1092 /* Timer handling */
1095 quic_get_thread_time (u8 thread_index)
1097 return quic_main.wrk_ctx[thread_index].time_now;
1101 quic_get_time (quicly_now_t * self)
1103 u8 thread_index = vlib_get_thread_index ();
1104 return quic_get_thread_time (thread_index);
1108 quic_set_time_now (u32 thread_index)
1110 vlib_main_t *vlib_main = vlib_get_main ();
1111 f64 time = vlib_time_now (vlib_main);
1112 quic_main.wrk_ctx[thread_index].time_now = (int64_t) (time * 1000.f);
1113 return quic_main.wrk_ctx[thread_index].time_now;
1116 /* Transport proto callback */
1118 quic_update_time (f64 now, u8 thread_index)
1120 tw_timer_wheel_1t_3w_1024sl_ov_t *tw;
1122 tw = &quic_main.wrk_ctx[thread_index].timer_wheel;
1123 quic_set_time_now (thread_index);
1124 tw_timer_expire_timers_1t_3w_1024sl_ov (tw, now);
1128 quic_timer_expired (u32 conn_index)
1131 QUIC_DBG (4, "Timer expired for conn %u at %ld", conn_index,
1132 quic_get_time (NULL));
1133 ctx = quic_ctx_get (conn_index, vlib_get_thread_index ());
1134 ctx->timer_handle = QUIC_TIMER_HANDLE_INVALID;
1135 quic_send_packets (ctx);
1139 quic_update_timer (quic_ctx_t * ctx)
1141 tw_timer_wheel_1t_3w_1024sl_ov_t *tw;
1142 int64_t next_timeout, next_interval;
1143 session_t *quic_session;
1146 /* This timeout is in ms which is the unit of our timer */
1147 next_timeout = quicly_get_first_timeout (ctx->conn);
1148 next_interval = next_timeout - quic_get_time (NULL);
1150 if (next_timeout == 0 || next_interval <= 0)
1152 if (ctx->c_s_index == QUIC_SESSION_INVALID)
1158 quic_session = session_get (ctx->c_s_index, ctx->c_thread_index);
1159 if (svm_fifo_set_event (quic_session->tx_fifo))
1161 rv = session_send_io_evt_to_thread_custom (quic_session,
1162 quic_session->thread_index,
1163 SESSION_IO_EVT_BUILTIN_TX);
1164 if (PREDICT_FALSE (rv))
1165 QUIC_ERR ("Failed to enqueue builtin_tx %d", rv);
1171 ASSERT (vlib_get_thread_index () == ctx->c_thread_index ||
1172 vlib_get_thread_index () == 0);
1173 tw = &quic_main.wrk_ctx[ctx->c_thread_index].timer_wheel;
1175 QUIC_DBG (4, "Timer set to %ld (int %ld) for ctx %u", next_timeout,
1176 next_interval, ctx->c_c_index);
1178 if (ctx->timer_handle == QUIC_TIMER_HANDLE_INVALID)
1180 if (next_timeout == INT64_MAX)
1182 QUIC_DBG (4, "timer for ctx %u already stopped", ctx->c_c_index);
1185 ctx->timer_handle = tw_timer_start_1t_3w_1024sl_ov (tw, ctx->c_c_index,
1190 if (next_timeout == INT64_MAX)
1192 quic_stop_ctx_timer (ctx);
1195 tw_timer_update_1t_3w_1024sl_ov (tw, ctx->timer_handle,
1202 quic_expired_timers_dispatch (u32 * expired_timers)
1206 for (i = 0; i < vec_len (expired_timers); i++)
1208 quic_timer_expired (expired_timers[i]);
1212 /* Transport proto functions */
1214 quic_connect_stream (session_t * quic_session, session_endpoint_cfg_t * sep)
1216 uint64_t quic_session_handle;
1217 session_t *stream_session;
1218 quic_stream_data_t *stream_data;
1219 quicly_stream_t *stream;
1220 quicly_conn_t *conn;
1221 app_worker_t *app_wrk;
1222 quic_ctx_t *qctx, *sctx;
1227 /* Find base session to which the user want to attach a stream */
1228 quic_session_handle = session_handle (quic_session);
1229 QUIC_DBG (2, "Opening new stream (qsession %u)", quic_session_handle);
1231 if (session_type_transport_proto (quic_session->session_type) !=
1232 TRANSPORT_PROTO_QUIC)
1234 QUIC_ERR ("received incompatible session");
1238 app_wrk = app_worker_get_if_valid (quic_session->app_wrk_index);
1241 QUIC_ERR ("Invalid app worker :(");
1245 sctx_index = quic_ctx_alloc (quic_session->thread_index); /* Allocate before we get pointers */
1246 sctx = quic_ctx_get (sctx_index, quic_session->thread_index);
1247 qctx = quic_ctx_get (quic_session->connection_index,
1248 quic_session->thread_index);
1249 if (quic_ctx_is_stream (qctx))
1251 QUIC_ERR ("session is a stream");
1252 quic_ctx_free (sctx);
1256 sctx->parent_app_wrk_id = qctx->parent_app_wrk_id;
1257 sctx->parent_app_id = qctx->parent_app_id;
1258 sctx->quic_connection_ctx_id = qctx->c_c_index;
1259 sctx->c_c_index = sctx_index;
1260 sctx->c_flags |= TRANSPORT_CONNECTION_F_NO_LOOKUP;
1261 sctx->flags |= QUIC_F_IS_STREAM;
1265 if (!conn || !quicly_connection_is_ready (conn))
1268 is_unidir = sep->transport_flags & TRANSPORT_CFG_F_UNIDIRECTIONAL;
1269 if ((rv = quicly_open_stream (conn, &stream, is_unidir)))
1271 QUIC_DBG (2, "Stream open failed with %d", rv);
1274 quic_increment_counter (QUIC_ERROR_OPENED_STREAM, 1);
1276 sctx->stream = stream;
1277 sctx->crypto_context_index = qctx->crypto_context_index;
1279 QUIC_DBG (2, "Opened stream %d, creating session", stream->stream_id);
1281 stream_session = session_alloc (qctx->c_thread_index);
1282 QUIC_DBG (2, "Allocated stream_session 0x%lx ctx %u",
1283 session_handle (stream_session), sctx_index);
1284 stream_session->app_wrk_index = app_wrk->wrk_index;
1285 stream_session->connection_index = sctx_index;
1286 stream_session->listener_handle = quic_session_handle;
1287 stream_session->session_type =
1288 session_type_from_proto_and_ip (TRANSPORT_PROTO_QUIC, qctx->udp_is_ip4);
1290 stream_session->flags |= SESSION_F_UNIDIRECTIONAL;
1292 sctx->c_s_index = stream_session->session_index;
1293 stream_data = (quic_stream_data_t *) stream->data;
1294 stream_data->ctx_id = sctx->c_c_index;
1295 stream_data->thread_index = sctx->c_thread_index;
1296 stream_data->app_rx_data_len = 0;
1297 stream_data->app_tx_data_len = 0;
1298 stream_session->session_state = SESSION_STATE_READY;
1300 /* For now we only reset streams. Cleanup will be triggered by timers */
1301 if ((rv = app_worker_init_connected (app_wrk, stream_session)))
1303 QUIC_ERR ("failed to app_worker_init_connected");
1304 quicly_reset_stream (stream, QUIC_APP_CONNECT_NOTIFY_ERROR);
1305 return app_worker_connect_notify (app_wrk, NULL, rv, sep->opaque);
1308 svm_fifo_add_want_deq_ntf (stream_session->rx_fifo,
1309 SVM_FIFO_WANT_DEQ_NOTIF_IF_FULL |
1310 SVM_FIFO_WANT_DEQ_NOTIF_IF_EMPTY);
1312 if (app_worker_connect_notify (app_wrk, stream_session, SESSION_E_NONE,
1315 QUIC_ERR ("failed to notify app");
1316 quic_increment_counter (QUIC_ERROR_CLOSED_STREAM, 1);
1317 quicly_reset_stream (stream, QUIC_APP_CONNECT_NOTIFY_ERROR);
1325 quic_connect_connection (session_endpoint_cfg_t * sep)
1327 vnet_connect_args_t _cargs, *cargs = &_cargs;
1328 transport_endpt_crypto_cfg_t *ccfg;
1329 quic_main_t *qm = &quic_main;
1330 u32 ctx_index, thread_index;
1332 app_worker_t *app_wrk;
1337 return SESSION_E_NOEXTCFG;
1339 /* Use pool on thread 1 if we have workers because of UDP */
1340 thread_index = transport_cl_thread ();
1341 ccfg = &sep->ext_cfg->crypto;
1343 clib_memset (cargs, 0, sizeof (*cargs));
1344 ctx_index = quic_ctx_alloc (thread_index);
1345 ctx = quic_ctx_get (ctx_index, thread_index);
1346 ctx->parent_app_wrk_id = sep->app_wrk_index;
1347 ctx->c_s_index = QUIC_SESSION_INVALID;
1348 ctx->c_c_index = ctx_index;
1349 ctx->udp_is_ip4 = sep->is_ip4;
1350 ctx->timer_handle = QUIC_TIMER_HANDLE_INVALID;
1351 ctx->conn_state = QUIC_CONN_STATE_HANDSHAKE;
1352 ctx->client_opaque = sep->opaque;
1353 ctx->c_flags |= TRANSPORT_CONNECTION_F_NO_LOOKUP;
1354 if (ccfg->hostname[0])
1355 ctx->srv_hostname = format (0, "%s", ccfg->hostname);
1357 /* needed by quic for crypto + determining client / server */
1358 ctx->srv_hostname = format (0, "%U", format_ip46_address,
1359 &sep->ip, sep->is_ip4);
1360 vec_terminate_c_string (ctx->srv_hostname);
1362 clib_memcpy (&cargs->sep_ext, sep, sizeof (session_endpoint_cfg_t));
1363 cargs->sep.transport_proto = TRANSPORT_PROTO_UDP;
1364 cargs->app_index = qm->app_index;
1365 cargs->api_context = ctx_index;
1367 app_wrk = app_worker_get (sep->app_wrk_index);
1368 app = application_get (app_wrk->app_index);
1369 ctx->parent_app_id = app_wrk->app_index;
1370 cargs->sep_ext.ns_index = app->ns_index;
1371 cargs->sep_ext.transport_flags = TRANSPORT_CFG_F_CONNECTED;
1373 ctx->crypto_engine = ccfg->crypto_engine;
1374 ctx->ckpair_index = ccfg->ckpair_index;
1375 if ((error = quic_acquire_crypto_context (ctx)))
1378 if ((error = vnet_connect (cargs)))
1385 quic_connect (transport_endpoint_cfg_t * tep)
1387 QUIC_DBG (2, "Called quic_connect");
1388 session_endpoint_cfg_t *sep = (session_endpoint_cfg_t *) tep;
1389 session_t *quic_session;
1390 sep = (session_endpoint_cfg_t *) tep;
1392 quic_session = session_get_from_handle_if_valid (sep->parent_handle);
1394 return quic_connect_stream (quic_session, sep);
1396 return quic_connect_connection (sep);
1400 quic_proto_on_close (u32 ctx_index, u32 thread_index)
1403 quic_ctx_t *ctx = quic_ctx_get_if_valid (ctx_index, thread_index);
1406 session_t *stream_session = session_get (ctx->c_s_index,
1407 ctx->c_thread_index);
1409 clib_warning ("Closing session 0x%lx", session_handle (stream_session));
1411 if (quic_ctx_is_stream (ctx))
1413 quicly_stream_t *stream = ctx->stream;
1414 if (!quicly_stream_has_send_side (quicly_is_client (stream->conn),
1417 quicly_sendstate_shutdown (&stream->sendstate, ctx->bytes_written +
1418 svm_fifo_max_dequeue
1419 (stream_session->tx_fifo));
1420 err = quicly_stream_sync_sendbuf (stream, 1);
1423 QUIC_DBG (1, "sendstate_shutdown failed for stream session %lu",
1424 session_handle (stream_session));
1425 quicly_reset_stream (stream, QUIC_APP_ERROR_CLOSE_NOTIFY);
1427 quic_send_packets (ctx);
1431 switch (ctx->conn_state)
1433 case QUIC_CONN_STATE_OPENED:
1434 case QUIC_CONN_STATE_HANDSHAKE:
1435 case QUIC_CONN_STATE_READY:
1436 ctx->conn_state = QUIC_CONN_STATE_ACTIVE_CLOSING;
1437 quicly_conn_t *conn = ctx->conn;
1438 /* Start connection closing. Keep sending packets until quicly_send
1439 returns QUICLY_ERROR_FREE_CONNECTION */
1441 quic_increment_counter (QUIC_ERROR_CLOSED_CONNECTION, 1);
1442 quicly_close (conn, QUIC_APP_ERROR_CLOSE_NOTIFY, "Closed by peer");
1443 /* This also causes all streams to be closed (and the cb called) */
1444 quic_send_packets (ctx);
1446 case QUIC_CONN_STATE_PASSIVE_CLOSING:
1447 ctx->conn_state = QUIC_CONN_STATE_PASSIVE_CLOSING_APP_CLOSED;
1448 /* send_packets will eventually return an error, we delete the conn at
1451 case QUIC_CONN_STATE_PASSIVE_CLOSING_QUIC_CLOSED:
1452 quic_connection_delete (ctx);
1454 case QUIC_CONN_STATE_ACTIVE_CLOSING:
1457 QUIC_ERR ("Trying to close conn in state %d", ctx->conn_state);
1463 quic_start_listen (u32 quic_listen_session_index,
1464 transport_endpoint_cfg_t *tep)
1466 vnet_listen_args_t _bargs, *args = &_bargs;
1467 transport_endpt_crypto_cfg_t *ccfg;
1468 quic_main_t *qm = &quic_main;
1469 session_handle_t udp_handle;
1470 session_endpoint_cfg_t *sep;
1471 session_t *udp_listen_session;
1472 app_worker_t *app_wrk;
1476 app_listener_t *app_listener;
1479 sep = (session_endpoint_cfg_t *) tep;
1481 return SESSION_E_NOEXTCFG;
1483 ccfg = &sep->ext_cfg->crypto;
1484 app_wrk = app_worker_get (sep->app_wrk_index);
1485 app = application_get (app_wrk->app_index);
1486 QUIC_DBG (2, "Called quic_start_listen for app %d", app_wrk->app_index);
1488 clib_memset (args, 0, sizeof (*args));
1489 args->app_index = qm->app_index;
1490 args->sep_ext = *sep;
1491 args->sep_ext.ns_index = app->ns_index;
1492 args->sep_ext.transport_proto = TRANSPORT_PROTO_UDP;
1493 args->sep_ext.transport_flags = TRANSPORT_CFG_F_CONNECTED;
1494 if ((rv = vnet_listen (args)))
1497 lctx_index = quic_ctx_alloc (0);
1498 udp_handle = args->handle;
1499 app_listener = app_listener_get_w_handle (udp_handle);
1500 udp_listen_session = app_listener_get_session (app_listener);
1501 udp_listen_session->opaque = lctx_index;
1503 lctx = quic_ctx_get (lctx_index, 0);
1504 lctx->flags |= QUIC_F_IS_LISTENER;
1506 clib_memcpy (&lctx->c_rmt_ip, &args->sep.peer.ip, sizeof (ip46_address_t));
1507 clib_memcpy (&lctx->c_lcl_ip, &args->sep.ip, sizeof (ip46_address_t));
1508 lctx->c_rmt_port = args->sep.peer.port;
1509 lctx->c_lcl_port = args->sep.port;
1510 lctx->c_is_ip4 = args->sep.is_ip4;
1511 lctx->c_fib_index = args->sep.fib_index;
1512 lctx->c_proto = TRANSPORT_PROTO_QUIC;
1513 lctx->parent_app_wrk_id = sep->app_wrk_index;
1514 lctx->parent_app_id = app_wrk->app_index;
1515 lctx->udp_session_handle = udp_handle;
1516 lctx->c_s_index = quic_listen_session_index;
1517 lctx->crypto_engine = ccfg->crypto_engine;
1518 lctx->ckpair_index = ccfg->ckpair_index;
1519 if ((rv = quic_acquire_crypto_context (lctx)))
1522 QUIC_DBG (2, "Listening UDP session 0x%lx",
1523 session_handle (udp_listen_session));
1524 QUIC_DBG (2, "Listening QUIC session 0x%lx", quic_listen_session_index);
1529 quic_stop_listen (u32 lctx_index)
1531 QUIC_DBG (2, "Called quic_stop_listen");
1533 lctx = quic_ctx_get (lctx_index, 0);
1534 QUIC_ASSERT (quic_ctx_is_listener (lctx));
1535 vnet_unlisten_args_t a = {
1536 .handle = lctx->udp_session_handle,
1537 .app_index = quic_main.app_index,
1538 .wrk_map_index = 0 /* default wrk */
1540 if (vnet_unlisten (&a))
1541 clib_warning ("unlisten errored");
1543 quic_release_crypto_context (lctx->crypto_context_index,
1544 0 /* thread_index */ );
1545 quic_ctx_free (lctx);
1549 static transport_connection_t *
1550 quic_connection_get (u32 ctx_index, u32 thread_index)
1553 ctx = quic_ctx_get (ctx_index, thread_index);
1554 return &ctx->connection;
1557 static transport_connection_t *
1558 quic_listener_get (u32 listener_index)
1560 QUIC_DBG (2, "Called quic_listener_get");
1562 ctx = quic_ctx_get (listener_index, 0);
1563 return &ctx->connection;
1567 format_quic_ctx (u8 * s, va_list * args)
1569 quic_ctx_t *ctx = va_arg (*args, quic_ctx_t *);
1570 u32 verbose = va_arg (*args, u32);
1575 str = format (str, "[#%d][Q] ", ctx->c_thread_index);
1577 if (quic_ctx_is_listener (ctx))
1578 str = format (str, "Listener, UDP %ld", ctx->udp_session_handle);
1579 else if (quic_ctx_is_stream (ctx))
1580 str = format (str, "Stream %ld conn %d",
1581 ctx->stream->stream_id, ctx->quic_connection_ctx_id);
1582 else /* connection */
1583 str = format (str, "Conn %d UDP %d", ctx->c_c_index,
1584 ctx->udp_session_handle);
1586 str = format (str, " app %d wrk %d", ctx->parent_app_id,
1587 ctx->parent_app_wrk_id);
1590 s = format (s, "%-" SESSION_CLI_ID_LEN "s%-" SESSION_CLI_STATE_LEN "d",
1591 str, ctx->conn_state);
1593 s = format (s, "%s\n", str);
1599 format_quic_connection (u8 * s, va_list * args)
1601 u32 qc_index = va_arg (*args, u32);
1602 u32 thread_index = va_arg (*args, u32);
1603 u32 verbose = va_arg (*args, u32);
1604 quic_ctx_t *ctx = quic_ctx_get (qc_index, thread_index);
1605 s = format (s, "%U", format_quic_ctx, ctx, verbose);
1610 format_quic_half_open (u8 * s, va_list * args)
1612 u32 qc_index = va_arg (*args, u32);
1613 u32 thread_index = va_arg (*args, u32);
1614 quic_ctx_t *ctx = quic_ctx_get (qc_index, thread_index);
1615 s = format (s, "[#%d][Q] half-open app %u", thread_index,
1616 ctx->parent_app_id);
1622 format_quic_listener (u8 * s, va_list * args)
1624 u32 tci = va_arg (*args, u32);
1625 u32 thread_index = va_arg (*args, u32);
1626 u32 verbose = va_arg (*args, u32);
1627 quic_ctx_t *ctx = quic_ctx_get (tci, thread_index);
1628 s = format (s, "%U", format_quic_ctx, ctx, verbose);
1632 /* Session layer callbacks */
1635 quic_build_sockaddr (struct sockaddr *sa, socklen_t * salen,
1636 ip46_address_t * addr, u16 port, u8 is_ip4)
1640 struct sockaddr_in *sa4 = (struct sockaddr_in *) sa;
1641 sa4->sin_family = AF_INET;
1642 sa4->sin_port = port;
1643 sa4->sin_addr.s_addr = addr->ip4.as_u32;
1644 *salen = sizeof (struct sockaddr_in);
1648 struct sockaddr_in6 *sa6 = (struct sockaddr_in6 *) sa;
1649 sa6->sin6_family = AF_INET6;
1650 sa6->sin6_port = port;
1651 clib_memcpy (&sa6->sin6_addr, &addr->ip6, 16);
1652 *salen = sizeof (struct sockaddr_in6);
1657 quic_on_quic_session_connected (quic_ctx_t * ctx)
1659 session_t *quic_session;
1660 app_worker_t *app_wrk;
1661 u32 ctx_id = ctx->c_c_index;
1662 u32 thread_index = ctx->c_thread_index;
1665 quic_session = session_alloc (thread_index);
1667 QUIC_DBG (2, "Allocated quic session 0x%lx", session_handle (quic_session));
1668 ctx->c_s_index = quic_session->session_index;
1669 quic_session->app_wrk_index = ctx->parent_app_wrk_id;
1670 quic_session->connection_index = ctx->c_c_index;
1671 quic_session->listener_handle = SESSION_INVALID_HANDLE;
1672 quic_session->session_type =
1673 session_type_from_proto_and_ip (TRANSPORT_PROTO_QUIC, ctx->udp_is_ip4);
1675 /* If quic session connected fails, immediatly close connection */
1676 app_wrk = app_worker_get (ctx->parent_app_wrk_id);
1677 if ((rv = app_worker_init_connected (app_wrk, quic_session)))
1679 QUIC_ERR ("failed to app_worker_init_connected");
1680 quic_proto_on_close (ctx_id, thread_index);
1681 app_worker_connect_notify (app_wrk, NULL, rv, ctx->client_opaque);
1685 quic_session->session_state = SESSION_STATE_CONNECTING;
1686 if ((rv = app_worker_connect_notify (app_wrk, quic_session,
1687 SESSION_E_NONE, ctx->client_opaque)))
1689 QUIC_ERR ("failed to notify app %d", rv);
1690 quic_proto_on_close (ctx_id, thread_index);
1694 /* If the app opens a stream in its callback it may invalidate ctx */
1695 ctx = quic_ctx_get (ctx_id, thread_index);
1697 * app_worker_connect_notify() might have reallocated pool, reload
1698 * quic_session pointer
1700 quic_session = session_get (ctx->c_s_index, thread_index);
1701 quic_session->session_state = SESSION_STATE_LISTENING;
1705 quic_check_quic_session_connected (quic_ctx_t * ctx)
1707 /* Called when we need to trigger quic session connected
1708 * we may call this function on the server side / at
1711 /* Conn may be set to null if the connection is terminated */
1712 if (!ctx->conn || ctx->conn_state != QUIC_CONN_STATE_HANDSHAKE)
1714 if (!quicly_connection_is_ready (ctx->conn))
1716 ctx->conn_state = QUIC_CONN_STATE_READY;
1717 if (!quicly_is_client (ctx->conn))
1719 quic_on_quic_session_connected (ctx);
1723 quic_update_conn_ctx (quicly_conn_t * conn, quicly_context_t * quicly_context)
1725 /* we need to update the quicly_conn on migrate
1726 * as it contains a pointer to the crypto context */
1727 ptls_context_t **tls;
1728 quicly_context_t **_quicly_context;
1729 _quicly_context = (quicly_context_t **) conn;
1730 *_quicly_context = quicly_context;
1731 tls = (ptls_context_t **) quicly_get_tls (conn);
1732 *tls = quicly_context->tls;
1736 quic_receive_connection (void *arg)
1738 u32 new_ctx_id, thread_index = vlib_get_thread_index ();
1739 quic_ctx_t *temp_ctx, *new_ctx;
1740 clib_bihash_kv_16_8_t kv;
1741 quicly_conn_t *conn;
1742 quicly_context_t *quicly_context;
1743 session_t *udp_session;
1746 new_ctx_id = quic_ctx_alloc (thread_index);
1747 new_ctx = quic_ctx_get (new_ctx_id, thread_index);
1749 QUIC_DBG (2, "Received conn %u (now %u)", temp_ctx->c_thread_index,
1752 clib_memcpy (new_ctx, temp_ctx, sizeof (quic_ctx_t));
1753 clib_mem_free (temp_ctx);
1755 new_ctx->c_thread_index = thread_index;
1756 new_ctx->c_c_index = new_ctx_id;
1757 quic_acquire_crypto_context (new_ctx);
1759 conn = new_ctx->conn;
1760 quicly_context = quic_get_quicly_ctx_from_ctx (new_ctx);
1761 quic_update_conn_ctx (conn, quicly_context);
1763 quic_store_conn_ctx (conn, new_ctx);
1764 quic_make_connection_key (&kv, quicly_get_master_id (conn));
1765 kv.value = ((u64) thread_index) << 32 | (u64) new_ctx_id;
1766 QUIC_DBG (2, "Registering conn with id %lu %lu", kv.key[0], kv.key[1]);
1767 clib_bihash_add_del_16_8 (&quic_main.connection_hash, &kv, 1 /* is_add */ );
1768 new_ctx->timer_handle = QUIC_TIMER_HANDLE_INVALID;
1769 quic_update_timer (new_ctx);
1771 /* Trigger write on this connection if necessary */
1772 udp_session = session_get_from_handle (new_ctx->udp_session_handle);
1773 udp_session->opaque = new_ctx_id;
1774 udp_session->flags &= ~SESSION_F_IS_MIGRATING;
1775 if (svm_fifo_max_dequeue (udp_session->tx_fifo))
1776 quic_set_udp_tx_evt (udp_session);
1780 quic_transfer_connection (u32 ctx_index, u32 dest_thread)
1782 quic_ctx_t *ctx, *temp_ctx;
1783 u32 thread_index = vlib_get_thread_index ();
1785 QUIC_DBG (2, "Transferring conn %u to thread %u", ctx_index, dest_thread);
1787 temp_ctx = clib_mem_alloc (sizeof (quic_ctx_t));
1788 QUIC_ASSERT (temp_ctx != NULL);
1789 ctx = quic_ctx_get (ctx_index, thread_index);
1791 clib_memcpy (temp_ctx, ctx, sizeof (quic_ctx_t));
1793 quic_stop_ctx_timer (ctx);
1794 quic_release_crypto_context (ctx->crypto_context_index, thread_index);
1795 quic_ctx_free (ctx);
1797 /* Send connection to destination thread */
1798 session_send_rpc_evt_to_thread (dest_thread, quic_receive_connection,
1803 quic_udp_session_connected_callback (u32 quic_app_index, u32 ctx_index,
1804 session_t * udp_session,
1805 session_error_t err)
1807 QUIC_DBG (2, "UDP Session is now connected (id %u)",
1808 udp_session->session_index);
1809 /* This should always be called before quic_connect returns since UDP always
1810 * connects instantly. */
1811 clib_bihash_kv_16_8_t kv;
1812 struct sockaddr_in6 sa6;
1813 struct sockaddr *sa = (struct sockaddr *) &sa6;
1815 transport_connection_t *tc;
1816 app_worker_t *app_wrk;
1817 quicly_conn_t *conn;
1821 quicly_context_t *quicly_ctx;
1823 /* Allocate session on whatever thread udp used, i.e., probably first
1824 * worker, although this may be main thread. If it is main, it's done
1825 * with a worker barrier */
1826 thread_index = udp_session->thread_index;
1827 ASSERT (thread_index == 0 || thread_index == 1);
1828 ctx = quic_ctx_get (ctx_index, thread_index);
1832 app_wrk = app_worker_get_if_valid (ctx->parent_app_wrk_id);
1835 api_context = ctx->c_s_index;
1836 app_worker_connect_notify (app_wrk, 0, SESSION_E_NONE, api_context);
1841 QUIC_DBG (2, "New ctx [%u]%x", thread_index, (ctx) ? ctx_index : ~0);
1843 ctx->udp_session_handle = session_handle (udp_session);
1844 udp_session->opaque = ctx_index;
1846 /* Init QUIC lib connection
1847 * Generate required sockaddr & salen */
1848 tc = session_get_transport (udp_session);
1849 quic_build_sockaddr (sa, &salen, &tc->rmt_ip, tc->rmt_port, tc->is_ip4);
1851 quicly_ctx = quic_get_quicly_ctx_from_ctx (ctx);
1852 ret = quicly_connect (&ctx->conn, quicly_ctx, (char *) ctx->srv_hostname,
1853 sa, NULL, &quic_main.wrk_ctx[thread_index].next_cid,
1854 ptls_iovec_init (NULL, 0), &quic_main.hs_properties,
1856 ++quic_main.wrk_ctx[thread_index].next_cid.master_id;
1857 /* Save context handle in quicly connection */
1858 quic_store_conn_ctx (ctx->conn, ctx);
1861 /* Register connection in connections map */
1863 quic_make_connection_key (&kv, quicly_get_master_id (conn));
1864 kv.value = ((u64) thread_index) << 32 | (u64) ctx_index;
1865 QUIC_DBG (2, "Registering conn with id %lu %lu", kv.key[0], kv.key[1]);
1866 clib_bihash_add_del_16_8 (&quic_main.connection_hash, &kv, 1 /* is_add */ );
1868 quic_send_packets (ctx);
1874 quic_udp_session_disconnect_callback (session_t * s)
1876 clib_warning ("UDP session disconnected???");
1880 quic_udp_session_cleanup_callback (session_t * udp_session,
1881 session_cleanup_ntf_t ntf)
1885 if (ntf != SESSION_CLEANUP_SESSION)
1888 ctx = quic_ctx_get (udp_session->opaque, udp_session->thread_index);
1889 quic_stop_ctx_timer (ctx);
1890 quic_release_crypto_context (ctx->crypto_context_index,
1891 ctx->c_thread_index);
1892 quic_ctx_free (ctx);
1896 quic_udp_session_reset_callback (session_t * s)
1898 clib_warning ("UDP session reset???");
1902 quic_udp_session_migrate_callback (session_t * s, session_handle_t new_sh)
1904 u32 new_thread = session_thread_from_handle (new_sh);
1907 QUIC_DBG (2, "Session %x migrated to %lx", s->session_index, new_sh);
1908 QUIC_ASSERT (vlib_get_thread_index () == s->thread_index);
1909 ctx = quic_ctx_get (s->opaque, s->thread_index);
1910 QUIC_ASSERT (ctx->udp_session_handle == session_handle (s));
1912 ctx->udp_session_handle = new_sh;
1914 s->opaque = 0xfeedface;
1916 quic_transfer_connection (ctx->c_c_index, new_thread);
1920 quic_udp_session_accepted_callback (session_t * udp_session)
1922 /* New UDP connection, try to accept it */
1924 quic_ctx_t *ctx, *lctx;
1925 session_t *udp_listen_session;
1926 u32 thread_index = vlib_get_thread_index ();
1928 udp_listen_session =
1929 listen_session_get_from_handle (udp_session->listener_handle);
1931 ctx_index = quic_ctx_alloc (thread_index);
1932 ctx = quic_ctx_get (ctx_index, thread_index);
1933 ctx->c_thread_index = udp_session->thread_index;
1934 ctx->c_c_index = ctx_index;
1935 ctx->c_s_index = QUIC_SESSION_INVALID;
1936 ctx->udp_session_handle = session_handle (udp_session);
1937 QUIC_DBG (2, "ACCEPTED UDP 0x%lx", ctx->udp_session_handle);
1938 ctx->listener_ctx_id = udp_listen_session->opaque;
1939 lctx = quic_ctx_get (udp_listen_session->opaque,
1940 udp_listen_session->thread_index);
1941 ctx->udp_is_ip4 = lctx->c_is_ip4;
1942 ctx->parent_app_id = lctx->parent_app_id;
1943 ctx->parent_app_wrk_id = lctx->parent_app_wrk_id;
1944 ctx->timer_handle = QUIC_TIMER_HANDLE_INVALID;
1945 ctx->conn_state = QUIC_CONN_STATE_OPENED;
1946 ctx->c_flags |= TRANSPORT_CONNECTION_F_NO_LOOKUP;
1948 ctx->crypto_engine = lctx->crypto_engine;
1949 ctx->ckpair_index = lctx->ckpair_index;
1950 quic_acquire_crypto_context (ctx);
1951 udp_session->opaque = ctx_index;
1952 udp_session->session_state = SESSION_STATE_READY;
1954 /* TODO timeout to delete these if they never connect */
1959 quic_add_segment_callback (u32 client_index, u64 seg_handle)
1961 /* No-op for builtin */
1966 quic_del_segment_callback (u32 client_index, u64 seg_handle)
1968 /* No-op for builtin */
1973 quic_custom_app_rx_callback (transport_connection_t * tc)
1976 session_t *stream_session = session_get (tc->s_index, tc->thread_index);
1977 QUIC_DBG (3, "Received app READ notification");
1978 quic_ack_rx_data (stream_session);
1979 svm_fifo_reset_has_deq_ntf (stream_session->rx_fifo);
1981 /* Need to send packets (acks may never be sent otherwise) */
1982 ctx = quic_ctx_get (stream_session->connection_index,
1983 stream_session->thread_index);
1984 quic_send_packets (ctx);
1989 quic_custom_tx_callback (void *s, transport_send_params_t * sp)
1991 session_t *stream_session = (session_t *) s;
1992 quic_stream_data_t *stream_data;
1993 quicly_stream_t *stream;
1999 (stream_session->session_state >= SESSION_STATE_TRANSPORT_CLOSING))
2001 ctx = quic_ctx_get (stream_session->connection_index,
2002 stream_session->thread_index);
2003 if (PREDICT_FALSE (!quic_ctx_is_stream (ctx)))
2005 goto tx_end; /* Most probably a reschedule */
2008 QUIC_DBG (3, "Stream TX event");
2009 quic_ack_rx_data (stream_session);
2010 stream = ctx->stream;
2011 if (!quicly_sendstate_is_open (&stream->sendstate))
2013 QUIC_ERR ("Warning: tried to send on closed stream");
2017 stream_data = (quic_stream_data_t *) stream->data;
2018 max_deq = svm_fifo_max_dequeue (stream_session->tx_fifo);
2019 QUIC_ASSERT (max_deq >= stream_data->app_tx_data_len);
2020 if (max_deq == stream_data->app_tx_data_len)
2022 QUIC_DBG (3, "TX but no data %d / %d", max_deq,
2023 stream_data->app_tx_data_len);
2026 stream_data->app_tx_data_len = max_deq;
2027 rv = quicly_stream_sync_sendbuf (stream, 1);
2031 return quic_send_packets (ctx);
2035 * Returns 0 if a matching connection is found and is on the right thread.
2036 * Otherwise returns -1.
2037 * If a connection is found, even on the wrong thread, ctx_thread and ctx_index
2041 quic_find_packet_ctx (quic_rx_packet_ctx_t * pctx, u32 caller_thread_index)
2043 clib_bihash_kv_16_8_t kv;
2044 clib_bihash_16_8_t *h;
2046 u32 index, thread_id;
2048 h = &quic_main.connection_hash;
2049 quic_make_connection_key (&kv, &pctx->packet.cid.dest.plaintext);
2050 QUIC_DBG (3, "Searching conn with id %lu %lu", kv.key[0], kv.key[1]);
2052 if (clib_bihash_search_16_8 (h, &kv, &kv))
2054 QUIC_DBG (3, "connection not found");
2055 return QUIC_PACKET_TYPE_NONE;
2058 index = kv.value & UINT32_MAX;
2059 thread_id = kv.value >> 32;
2060 /* Check if this connection belongs to this thread, otherwise
2061 * ask for it to be moved */
2062 if (thread_id != caller_thread_index)
2064 QUIC_DBG (2, "Connection is on wrong thread");
2065 /* Cannot make full check with quicly_is_destination... */
2066 pctx->ctx_index = index;
2067 pctx->thread_index = thread_id;
2068 return QUIC_PACKET_TYPE_MIGRATE;
2070 ctx = quic_ctx_get (index, vlib_get_thread_index ());
2073 QUIC_ERR ("ctx has no conn");
2074 return QUIC_PACKET_TYPE_NONE;
2076 if (!quicly_is_destination (ctx->conn, NULL, &pctx->sa, &pctx->packet))
2077 return QUIC_PACKET_TYPE_NONE;
2079 QUIC_DBG (3, "Connection found");
2080 pctx->ctx_index = index;
2081 pctx->thread_index = thread_id;
2082 return QUIC_PACKET_TYPE_RECEIVE;
2086 quic_accept_connection (quic_rx_packet_ctx_t * pctx)
2088 quicly_context_t *quicly_ctx;
2089 session_t *quic_session;
2090 clib_bihash_kv_16_8_t kv;
2091 app_worker_t *app_wrk;
2092 quicly_conn_t *conn;
2097 /* new connection, accept and create context if packet is valid
2098 * TODO: check if socket is actually listening? */
2099 ctx = quic_ctx_get (pctx->ctx_index, pctx->thread_index);
2100 if (ctx->c_s_index != QUIC_SESSION_INVALID)
2102 QUIC_DBG (2, "already accepted ctx 0x%x", ctx->c_s_index);
2106 quicly_ctx = quic_get_quicly_ctx_from_ctx (ctx);
2107 if ((rv = quicly_accept (&conn, quicly_ctx, NULL, &pctx->sa,
2108 &pctx->packet, NULL,
2109 &quic_main.wrk_ctx[pctx->thread_index].next_cid,
2112 /* Invalid packet, pass */
2113 assert (conn == NULL);
2114 QUIC_ERR ("Accept failed with %U", quic_format_err, rv);
2115 /* TODO: cleanup created quic ctx and UDP session */
2118 assert (conn != NULL);
2120 ++quic_main.wrk_ctx[pctx->thread_index].next_cid.master_id;
2121 /* Save ctx handle in quicly connection */
2122 quic_store_conn_ctx (conn, ctx);
2125 quic_session = session_alloc (ctx->c_thread_index);
2126 QUIC_DBG (2, "Allocated quic_session, 0x%lx ctx %u",
2127 session_handle (quic_session), ctx->c_c_index);
2128 quic_session->session_state = SESSION_STATE_LISTENING;
2129 ctx->c_s_index = quic_session->session_index;
2131 lctx = quic_ctx_get (ctx->listener_ctx_id, 0);
2133 quic_session->app_wrk_index = lctx->parent_app_wrk_id;
2134 quic_session->connection_index = ctx->c_c_index;
2135 quic_session->session_type =
2136 session_type_from_proto_and_ip (TRANSPORT_PROTO_QUIC, ctx->udp_is_ip4);
2137 quic_session->listener_handle = lctx->c_s_index;
2139 /* Register connection in connections map */
2140 quic_make_connection_key (&kv, quicly_get_master_id (conn));
2141 kv.value = ((u64) pctx->thread_index) << 32 | (u64) pctx->ctx_index;
2142 clib_bihash_add_del_16_8 (&quic_main.connection_hash, &kv, 1 /* is_add */ );
2143 QUIC_DBG (2, "Registering conn with id %lu %lu", kv.key[0], kv.key[1]);
2145 /* If notify fails, reset connection immediatly */
2146 if ((rv = app_worker_init_accepted (quic_session)))
2148 QUIC_ERR ("failed to allocate fifos");
2149 quic_proto_on_close (pctx->ctx_index, pctx->thread_index);
2153 app_wrk = app_worker_get (quic_session->app_wrk_index);
2154 if ((rv = app_worker_accept_notify (app_wrk, quic_session)))
2156 QUIC_ERR ("failed to notify accept worker app");
2157 quic_proto_on_close (pctx->ctx_index, pctx->thread_index);
2161 ctx->conn_state = QUIC_CONN_STATE_READY;
2165 quic_reset_connection (u64 udp_session_handle, quic_rx_packet_ctx_t * pctx)
2167 /* short header packet; potentially a dead connection. No need to check the
2168 * length of the incoming packet, because loop is prevented by authenticating
2169 * the CID (by checking node_id and thread_id). If the peer is also sending a
2170 * reset, then the next CID is highly likely to contain a non-authenticating
2172 QUIC_DBG (2, "Sending stateless reset");
2174 session_t *udp_session;
2175 quicly_context_t *quicly_ctx;
2176 if (pctx->packet.cid.dest.plaintext.node_id != 0
2177 || pctx->packet.cid.dest.plaintext.thread_id != 0)
2179 quicly_ctx = quic_get_quicly_ctx_from_udp (udp_session_handle);
2180 quic_ctx_t *qctx = quic_ctx_get (pctx->ctx_index, pctx->thread_index);
2182 quicly_address_t src;
2183 uint8_t payload[quicly_ctx->transport_params.max_udp_payload_size];
2184 size_t payload_len =
2185 quicly_send_stateless_reset (quicly_ctx, &src.sa, payload);
2186 if (payload_len == 0)
2189 struct iovec packet;
2190 packet.iov_len = payload_len;
2191 packet.iov_base = payload;
2193 struct _st_quicly_conn_public_t *conn =
2194 (struct _st_quicly_conn_public_t *) qctx->conn;
2196 udp_session = session_get_from_handle (udp_session_handle);
2197 rv = quic_send_datagram (udp_session, &packet, &conn->remote.address,
2198 &conn->local.address);
2199 quic_set_udp_tx_evt (udp_session);
2204 quic_process_one_rx_packet (u64 udp_session_handle, svm_fifo_t * f,
2205 u32 fifo_offset, quic_rx_packet_ctx_t * pctx)
2209 u32 thread_index = vlib_get_thread_index ();
2210 u32 cur_deq = svm_fifo_max_dequeue (f) - fifo_offset;
2211 quicly_context_t *quicly_ctx;
2212 session_t *udp_session;
2215 ret = svm_fifo_peek (f, fifo_offset,
2216 SESSION_CONN_HDR_LEN, (u8 *) & pctx->ph);
2217 QUIC_ASSERT (ret == SESSION_CONN_HDR_LEN);
2218 QUIC_ASSERT (pctx->ph.data_offset == 0);
2219 full_len = pctx->ph.data_length + SESSION_CONN_HDR_LEN;
2220 if (full_len > cur_deq)
2222 QUIC_ERR ("Not enough data in fifo RX");
2226 /* Quicly can read len bytes from the fifo at offset:
2227 * ph.data_offset + SESSION_CONN_HDR_LEN */
2228 ret = svm_fifo_peek (f, SESSION_CONN_HDR_LEN + fifo_offset,
2229 pctx->ph.data_length, pctx->data);
2230 if (ret != pctx->ph.data_length)
2232 QUIC_ERR ("Not enough data peeked in RX");
2236 quic_increment_counter (QUIC_ERROR_RX_PACKETS, 1);
2237 quic_build_sockaddr (&pctx->sa, &pctx->salen, &pctx->ph.rmt_ip,
2238 pctx->ph.rmt_port, pctx->ph.is_ip4);
2239 quicly_ctx = quic_get_quicly_ctx_from_udp (udp_session_handle);
2242 plen = quicly_decode_packet (quicly_ctx, &pctx->packet, pctx->data,
2243 pctx->ph.data_length, &off);
2245 if (plen == SIZE_MAX)
2250 rv = quic_find_packet_ctx (pctx, thread_index);
2251 if (rv == QUIC_PACKET_TYPE_RECEIVE)
2253 pctx->ptype = QUIC_PACKET_TYPE_RECEIVE;
2255 if (quic_main.vnet_crypto_enabled &&
2256 quic_main.default_crypto_engine == CRYPTO_ENGINE_VPP)
2258 quic_ctx_t *qctx = quic_ctx_get (pctx->ctx_index, thread_index);
2259 quic_crypto_decrypt_packet (qctx, pctx);
2263 else if (rv == QUIC_PACKET_TYPE_MIGRATE)
2265 pctx->ptype = QUIC_PACKET_TYPE_MIGRATE;
2266 /* Connection found but on wrong thread, ask move */
2268 else if (QUICLY_PACKET_IS_LONG_HEADER (pctx->packet.octets.base[0]))
2270 pctx->ptype = QUIC_PACKET_TYPE_ACCEPT;
2271 udp_session = session_get_from_handle (udp_session_handle);
2272 pctx->ctx_index = udp_session->opaque;
2273 pctx->thread_index = thread_index;
2277 pctx->ptype = QUIC_PACKET_TYPE_RESET;
2283 quic_udp_session_rx_callback (session_t * udp_session)
2285 /* Read data from UDP rx_fifo and pass it to the quicly conn. */
2286 quic_ctx_t *ctx = NULL, *prev_ctx = NULL;
2287 svm_fifo_t *f = udp_session->rx_fifo;
2289 u64 udp_session_handle = session_handle (udp_session);
2291 u32 thread_index = vlib_get_thread_index ();
2292 u32 cur_deq, fifo_offset, max_packets, i;
2294 quic_rx_packet_ctx_t packets_ctx[QUIC_RCV_MAX_PACKETS];
2296 if (udp_session->flags & SESSION_F_IS_MIGRATING)
2298 QUIC_DBG (3, "RX on migrating udp session");
2303 max_deq = svm_fifo_max_dequeue (f);
2308 max_packets = QUIC_RCV_MAX_PACKETS;
2311 clib_memset (packets_ctx, 0xfa,
2312 QUIC_RCV_MAX_PACKETS * sizeof (quic_rx_packet_ctx_t));
2314 for (i = 0; i < max_packets; i++)
2316 packets_ctx[i].thread_index = UINT32_MAX;
2317 packets_ctx[i].ctx_index = UINT32_MAX;
2318 packets_ctx[i].ptype = QUIC_PACKET_TYPE_DROP;
2320 cur_deq = max_deq - fifo_offset;
2323 max_packets = i + 1;
2326 if (cur_deq < SESSION_CONN_HDR_LEN)
2328 fifo_offset = max_deq;
2329 max_packets = i + 1;
2330 QUIC_ERR ("Fifo %d < header size in RX", cur_deq);
2333 rv = quic_process_one_rx_packet (udp_session_handle, f,
2334 fifo_offset, &packets_ctx[i]);
2335 if (packets_ctx[i].ptype != QUIC_PACKET_TYPE_MIGRATE)
2336 fifo_offset += SESSION_CONN_HDR_LEN + packets_ctx[i].ph.data_length;
2339 max_packets = i + 1;
2344 for (i = 0; i < max_packets; i++)
2346 switch (packets_ctx[i].ptype)
2348 case QUIC_PACKET_TYPE_RECEIVE:
2349 ctx = quic_ctx_get (packets_ctx[i].ctx_index, thread_index);
2350 rv = quicly_receive (ctx->conn, NULL, &packets_ctx[i].sa,
2351 &packets_ctx[i].packet);
2352 if (rv && rv != QUICLY_ERROR_PACKET_IGNORED)
2354 QUIC_ERR ("quicly_receive return error %U",
2355 quic_format_err, rv);
2358 case QUIC_PACKET_TYPE_ACCEPT:
2359 quic_accept_connection (&packets_ctx[i]);
2361 case QUIC_PACKET_TYPE_RESET:
2362 quic_reset_connection (udp_session_handle, &packets_ctx[i]);
2366 ctx = prev_ctx = NULL;
2367 for (i = 0; i < max_packets; i++)
2370 switch (packets_ctx[i].ptype)
2372 case QUIC_PACKET_TYPE_RECEIVE:
2373 ctx = quic_ctx_get (packets_ctx[i].ctx_index,
2374 packets_ctx[i].thread_index);
2375 quic_check_quic_session_connected (ctx);
2376 ctx = quic_ctx_get (packets_ctx[i].ctx_index,
2377 packets_ctx[i].thread_index);
2379 case QUIC_PACKET_TYPE_ACCEPT:
2380 ctx = quic_ctx_get (packets_ctx[i].ctx_index,
2381 packets_ctx[i].thread_index);
2384 continue; /* this exits the for loop since other packet types are
2385 necessarily the last in the batch */
2387 if (ctx != prev_ctx)
2388 quic_send_packets (ctx);
2391 udp_session = session_get_from_handle (udp_session_handle); /* session alloc might have happened */
2392 f = udp_session->rx_fifo;
2393 svm_fifo_dequeue_drop (f, fifo_offset);
2395 if (svm_fifo_max_dequeue (f))
2402 quic_common_get_transport_endpoint (quic_ctx_t * ctx,
2403 transport_endpoint_t * tep, u8 is_lcl)
2405 session_t *udp_session;
2406 if (!quic_ctx_is_stream (ctx))
2408 udp_session = session_get_from_handle (ctx->udp_session_handle);
2409 session_get_endpoint (udp_session, tep, is_lcl);
2414 quic_get_transport_listener_endpoint (u32 listener_index,
2415 transport_endpoint_t * tep, u8 is_lcl)
2418 app_listener_t *app_listener;
2419 session_t *udp_listen_session;
2420 ctx = quic_ctx_get (listener_index, vlib_get_thread_index ());
2421 if (quic_ctx_is_listener (ctx))
2423 app_listener = app_listener_get_w_handle (ctx->udp_session_handle);
2424 udp_listen_session = app_listener_get_session (app_listener);
2425 return session_get_endpoint (udp_listen_session, tep, is_lcl);
2427 quic_common_get_transport_endpoint (ctx, tep, is_lcl);
2431 quic_get_transport_endpoint (u32 ctx_index, u32 thread_index,
2432 transport_endpoint_t * tep, u8 is_lcl)
2435 ctx = quic_ctx_get (ctx_index, thread_index);
2436 quic_common_get_transport_endpoint (ctx, tep, is_lcl);
2440 static session_cb_vft_t quic_app_cb_vft = {
2441 .session_accept_callback = quic_udp_session_accepted_callback,
2442 .session_disconnect_callback = quic_udp_session_disconnect_callback,
2443 .session_connected_callback = quic_udp_session_connected_callback,
2444 .session_reset_callback = quic_udp_session_reset_callback,
2445 .session_migrate_callback = quic_udp_session_migrate_callback,
2446 .add_segment_callback = quic_add_segment_callback,
2447 .del_segment_callback = quic_del_segment_callback,
2448 .builtin_app_rx_callback = quic_udp_session_rx_callback,
2449 .session_cleanup_callback = quic_udp_session_cleanup_callback,
2450 .app_cert_key_pair_delete_callback = quic_app_cert_key_pair_delete_callback,
2453 static const transport_proto_vft_t quic_proto = {
2454 .connect = quic_connect,
2455 .close = quic_proto_on_close,
2456 .start_listen = quic_start_listen,
2457 .stop_listen = quic_stop_listen,
2458 .get_connection = quic_connection_get,
2459 .get_listener = quic_listener_get,
2460 .update_time = quic_update_time,
2461 .app_rx_evt = quic_custom_app_rx_callback,
2462 .custom_tx = quic_custom_tx_callback,
2463 .format_connection = format_quic_connection,
2464 .format_half_open = format_quic_half_open,
2465 .format_listener = format_quic_listener,
2466 .get_transport_endpoint = quic_get_transport_endpoint,
2467 .get_transport_listener_endpoint = quic_get_transport_listener_endpoint,
2468 .transport_options = {
2471 .tx_type = TRANSPORT_TX_INTERNAL,
2472 .service_type = TRANSPORT_SERVICE_APP,
2477 static quicly_stream_open_t on_stream_open = { quic_on_stream_open };
2478 static quicly_closed_by_remote_t on_closed_by_remote = {
2479 quic_on_closed_by_remote
2481 static quicly_now_t quicly_vpp_now_cb = { quic_get_time };
2484 quic_register_cipher_suite (crypto_engine_type_t type,
2485 ptls_cipher_suite_t ** ciphers)
2487 quic_main_t *qm = &quic_main;
2488 vec_validate (qm->quic_ciphers, type);
2489 clib_bitmap_set (qm->available_crypto_engines, type, 1);
2490 qm->quic_ciphers[type] = ciphers;
2494 quic_update_fifo_size ()
2496 quic_main_t *qm = &quic_main;
2497 segment_manager_props_t *seg_mgr_props =
2498 application_get_segment_manager_properties (qm->app_index);
2503 ("error while getting segment_manager_props_t, can't update fifo-size");
2507 seg_mgr_props->tx_fifo_size = qm->udp_fifo_size;
2508 seg_mgr_props->rx_fifo_size = qm->udp_fifo_size;
2511 static clib_error_t *
2512 quic_init (vlib_main_t * vm)
2514 u32 segment_size = 256 << 20;
2515 vlib_thread_main_t *vtm = vlib_get_thread_main ();
2516 tw_timer_wheel_1t_3w_1024sl_ov_t *tw;
2517 vnet_app_attach_args_t _a, *a = &_a;
2518 u64 options[APP_OPTIONS_N_OPTIONS];
2519 quic_main_t *qm = &quic_main;
2522 num_threads = 1 /* main thread */ + vtm->n_threads;
2524 clib_memset (a, 0, sizeof (*a));
2525 clib_memset (options, 0, sizeof (options));
2527 a->session_cb_vft = &quic_app_cb_vft;
2528 a->api_client_index = APP_INVALID_INDEX;
2529 a->options = options;
2530 a->name = format (0, "quic");
2531 a->options[APP_OPTIONS_SEGMENT_SIZE] = segment_size;
2532 a->options[APP_OPTIONS_ADD_SEGMENT_SIZE] = segment_size;
2533 a->options[APP_OPTIONS_RX_FIFO_SIZE] = qm->udp_fifo_size;
2534 a->options[APP_OPTIONS_TX_FIFO_SIZE] = qm->udp_fifo_size;
2535 a->options[APP_OPTIONS_PREALLOC_FIFO_PAIRS] = qm->udp_fifo_prealloc;
2536 a->options[APP_OPTIONS_FLAGS] = APP_OPTIONS_FLAGS_IS_BUILTIN;
2537 a->options[APP_OPTIONS_FLAGS] |= APP_OPTIONS_FLAGS_USE_GLOBAL_SCOPE;
2538 a->options[APP_OPTIONS_FLAGS] |= APP_OPTIONS_FLAGS_IS_TRANSPORT_APP;
2540 if (vnet_application_attach (a))
2542 clib_warning ("failed to attach quic app");
2543 return clib_error_return (0, "failed to attach quic app");
2546 vec_validate (qm->ctx_pool, num_threads - 1);
2547 vec_validate (qm->wrk_ctx, num_threads - 1);
2549 for (i = 0; i < num_threads; i++)
2551 qm->wrk_ctx[i].next_cid.thread_id = i;
2552 tw = &qm->wrk_ctx[i].timer_wheel;
2553 tw_timer_wheel_init_1t_3w_1024sl_ov (tw, quic_expired_timers_dispatch,
2554 1e-3 /* timer period 1ms */ , ~0);
2555 tw->last_run_time = vlib_time_now (vlib_get_main ());
2556 clib_bihash_init_24_8 (&qm->wrk_ctx[i].crypto_context_hash,
2557 "quic crypto contexts", 64, 128 << 10);
2560 clib_bihash_init_16_8 (&qm->connection_hash, "quic connections", 1024,
2563 qm->app_index = a->app_index;
2564 qm->tstamp_ticks_per_clock = vm->clib_time.seconds_per_clock
2565 / QUIC_TSTAMP_RESOLUTION;
2566 qm->session_cache.super.cb = quic_encrypt_ticket_cb;
2568 transport_register_protocol (TRANSPORT_PROTO_QUIC, &quic_proto,
2569 FIB_PROTOCOL_IP4, ~0);
2570 transport_register_protocol (TRANSPORT_PROTO_QUIC, &quic_proto,
2571 FIB_PROTOCOL_IP6, ~0);
2573 clib_bitmap_alloc (qm->available_crypto_engines,
2574 app_crypto_engine_n_types ());
2575 quic_register_cipher_suite (CRYPTO_ENGINE_PICOTLS,
2576 ptls_openssl_cipher_suites);
2577 qm->default_crypto_engine = CRYPTO_ENGINE_PICOTLS;
2579 vnet_crypto_main_t *cm = &crypto_main;
2580 if (vec_len (cm->engines) == 0)
2581 qm->vnet_crypto_enabled = 0;
2583 qm->vnet_crypto_enabled = 1;
2584 if (qm->vnet_crypto_enabled == 1)
2586 u8 empty_key[32] = {};
2587 quic_register_cipher_suite (CRYPTO_ENGINE_VPP,
2588 quic_crypto_cipher_suites);
2589 qm->default_crypto_engine = CRYPTO_ENGINE_VPP;
2590 vec_validate (qm->per_thread_crypto_key_indices, num_threads);
2591 for (i = 0; i < num_threads; i++)
2593 qm->per_thread_crypto_key_indices[i] = vnet_crypto_key_add (
2594 vm, VNET_CRYPTO_ALG_AES_256_CTR, empty_key, 32);
2598 qm->max_packets_per_key = DEFAULT_MAX_PACKETS_PER_KEY;
2599 qm->default_quic_cc = QUIC_CC_RENO;
2605 VLIB_INIT_FUNCTION (quic_init);
2607 static clib_error_t *
2608 quic_plugin_crypto_command_fn (vlib_main_t * vm,
2609 unformat_input_t * input,
2610 vlib_cli_command_t * cmd)
2612 unformat_input_t _line_input, *line_input = &_line_input;
2613 quic_main_t *qm = &quic_main;
2614 clib_error_t *e = 0;
2616 if (!unformat_user (input, unformat_line_input, line_input))
2619 while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
2621 if (unformat (line_input, "vpp"))
2622 qm->default_crypto_engine = CRYPTO_ENGINE_VPP;
2623 else if (unformat (line_input, "picotls"))
2624 qm->default_crypto_engine = CRYPTO_ENGINE_PICOTLS;
2627 e = clib_error_return (0, "unknown input '%U'",
2628 format_unformat_error, line_input);
2633 unformat_free (line_input);
2637 u64 quic_fifosize = 0;
2638 static clib_error_t *
2639 quic_plugin_set_fifo_size_command_fn (vlib_main_t * vm,
2640 unformat_input_t * input,
2641 vlib_cli_command_t * cmd)
2643 quic_main_t *qm = &quic_main;
2644 unformat_input_t _line_input, *line_input = &_line_input;
2647 if (!unformat_user (input, unformat_line_input, line_input))
2650 while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
2652 if (unformat (line_input, "%U", unformat_memory_size, &tmp))
2654 if (tmp >= 0x100000000ULL)
2656 return clib_error_return
2657 (0, "fifo-size %llu (0x%llx) too large", tmp, tmp);
2659 qm->udp_fifo_size = tmp;
2660 quic_update_fifo_size ();
2663 return clib_error_return (0, "unknown input '%U'",
2664 format_unformat_error, line_input);
2671 quic_get_counter_value (u32 event_code)
2675 vlib_error_main_t *em;
2680 vm = vlib_get_main ();
2681 em = &vm->error_main;
2682 n = vlib_get_node (vm, quic_input_node.index);
2684 foreach_vlib_main ()
2686 em = &this_vlib_main->error_main;
2687 i = n->error_heap_index + code;
2688 c = em->counters[i];
2690 if (i < vec_len (em->counters_last_clear))
2691 c -= em->counters_last_clear[i];
2698 quic_show_aggregated_stats (vlib_main_t * vm)
2700 u32 num_workers = vlib_num_workers ();
2701 quic_main_t *qm = &quic_main;
2702 quic_ctx_t *ctx = NULL;
2703 quicly_stats_t st, agg_stats;
2704 u32 i, nconn = 0, nstream = 0;
2706 clib_memset (&agg_stats, 0, sizeof (agg_stats));
2707 for (i = 0; i < num_workers + 1; i++)
2710 pool_foreach (ctx, qm->ctx_pool[i])
2712 if (quic_ctx_is_conn (ctx) && ctx->conn)
2714 quicly_get_stats (ctx->conn, &st);
2715 agg_stats.rtt.smoothed += st.rtt.smoothed;
2716 agg_stats.rtt.minimum += st.rtt.minimum;
2717 agg_stats.rtt.variance += st.rtt.variance;
2718 agg_stats.num_packets.received += st.num_packets.received;
2719 agg_stats.num_packets.sent += st.num_packets.sent;
2720 agg_stats.num_packets.lost += st.num_packets.lost;
2721 agg_stats.num_packets.ack_received += st.num_packets.ack_received;
2722 agg_stats.num_bytes.received += st.num_bytes.received;
2723 agg_stats.num_bytes.sent += st.num_bytes.sent;
2726 else if (quic_ctx_is_stream (ctx))
2731 vlib_cli_output (vm, "-------- Connections --------");
2732 vlib_cli_output (vm, "Current: %u", nconn);
2733 vlib_cli_output (vm, "Opened: %d",
2734 quic_get_counter_value (QUIC_ERROR_OPENED_CONNECTION));
2735 vlib_cli_output (vm, "Closed: %d",
2736 quic_get_counter_value (QUIC_ERROR_CLOSED_CONNECTION));
2737 vlib_cli_output (vm, "---------- Streams ----------");
2738 vlib_cli_output (vm, "Current: %u", nstream);
2739 vlib_cli_output (vm, "Opened: %d",
2740 quic_get_counter_value (QUIC_ERROR_OPENED_STREAM));
2741 vlib_cli_output (vm, "Closed: %d",
2742 quic_get_counter_value (QUIC_ERROR_CLOSED_STREAM));
2743 vlib_cli_output (vm, "---------- Packets ----------");
2744 vlib_cli_output (vm, "RX Total: %d",
2745 quic_get_counter_value (QUIC_ERROR_RX_PACKETS));
2746 vlib_cli_output (vm, "RX 0RTT: %d",
2747 quic_get_counter_value (QUIC_ERROR_ZERO_RTT_RX_PACKETS));
2748 vlib_cli_output (vm, "RX 1RTT: %d",
2749 quic_get_counter_value (QUIC_ERROR_ONE_RTT_RX_PACKETS));
2750 vlib_cli_output (vm, "TX Total: %d",
2751 quic_get_counter_value (QUIC_ERROR_TX_PACKETS));
2752 vlib_cli_output (vm, "----------- Stats -----------");
2753 vlib_cli_output (vm, "Min RTT %f",
2754 nconn > 0 ? agg_stats.rtt.minimum / nconn : 0);
2755 vlib_cli_output (vm, "Smoothed RTT %f",
2756 nconn > 0 ? agg_stats.rtt.smoothed / nconn : 0);
2757 vlib_cli_output (vm, "Variance on RTT %f",
2758 nconn > 0 ? agg_stats.rtt.variance / nconn : 0);
2759 vlib_cli_output (vm, "Packets Received %lu",
2760 agg_stats.num_packets.received);
2761 vlib_cli_output (vm, "Packets Sent %lu", agg_stats.num_packets.sent);
2762 vlib_cli_output (vm, "Packets Lost %lu", agg_stats.num_packets.lost);
2763 vlib_cli_output (vm, "Packets Acks %lu",
2764 agg_stats.num_packets.ack_received);
2765 vlib_cli_output (vm, "RX bytes %lu", agg_stats.num_bytes.received);
2766 vlib_cli_output (vm, "TX bytes %lu", agg_stats.num_bytes.sent);
2770 quic_format_quicly_conn_id (u8 * s, va_list * args)
2772 quicly_cid_plaintext_t *mid = va_arg (*args, quicly_cid_plaintext_t *);
2773 s = format (s, "C%x_%x", mid->master_id, mid->thread_id);
2778 quic_format_quicly_stream_id (u8 * s, va_list * args)
2780 quicly_stream_t *stream = va_arg (*args, quicly_stream_t *);
2782 format (s, "%U S%lx", quic_format_quicly_conn_id,
2783 quicly_get_master_id (stream->conn), stream->stream_id);
2788 quic_format_listener_ctx (u8 * s, va_list * args)
2790 quic_ctx_t *ctx = va_arg (*args, quic_ctx_t *);
2791 s = format (s, "[#%d][%x][Listener]", ctx->c_thread_index, ctx->c_c_index);
2796 quic_format_connection_ctx (u8 * s, va_list * args)
2798 quic_ctx_t *ctx = va_arg (*args, quic_ctx_t *);
2799 quicly_stats_t quicly_stats;
2801 s = format (s, "[#%d][%x]", ctx->c_thread_index, ctx->c_c_index);
2805 s = format (s, "- no conn -\n");
2808 s = format (s, "[%U]",
2809 quic_format_quicly_conn_id, quicly_get_master_id (ctx->conn));
2810 quicly_get_stats (ctx->conn, &quicly_stats);
2812 s = format (s, "[RTT >%3d, ~%3d, V%3d, last %3d]",
2813 quicly_stats.rtt.minimum, quicly_stats.rtt.smoothed,
2814 quicly_stats.rtt.variance, quicly_stats.rtt.latest);
2815 s = format (s, " TX:%d RX:%d loss:%d ack:%d",
2816 quicly_stats.num_packets.sent,
2817 quicly_stats.num_packets.received,
2818 quicly_stats.num_packets.lost,
2819 quicly_stats.num_packets.ack_received);
2821 format (s, "\ncwnd:%u ssthresh:%u recovery_end:%lu", quicly_stats.cc.cwnd,
2822 quicly_stats.cc.ssthresh, quicly_stats.cc.recovery_end);
2824 quicly_context_t *quicly_ctx = quic_get_quicly_ctx_from_ctx (ctx);
2825 if (quicly_ctx->init_cc == &quicly_cc_cubic_init)
2829 "\nk:%d w_max:%u w_last_max:%u avoidance_start:%ld last_sent_time:%ld",
2830 quicly_stats.cc.state.cubic.k, quicly_stats.cc.state.cubic.w_max,
2831 quicly_stats.cc.state.cubic.w_last_max,
2832 quicly_stats.cc.state.cubic.avoidance_start,
2833 quicly_stats.cc.state.cubic.last_sent_time);
2835 else if (quicly_ctx->init_cc == &quicly_cc_reno_init)
2837 s = format (s, " stash:%u", quicly_stats.cc.state.reno.stash);
2844 quic_format_stream_ctx (u8 * s, va_list * args)
2846 quic_ctx_t *ctx = va_arg (*args, quic_ctx_t *);
2847 session_t *stream_session;
2848 quicly_stream_t *stream = ctx->stream;
2851 s = format (s, "[#%d][%x]", ctx->c_thread_index, ctx->c_c_index);
2852 s = format (s, "[%U]", quic_format_quicly_stream_id, stream);
2854 stream_session = session_get_if_valid (ctx->c_s_index, ctx->c_thread_index);
2855 if (!stream_session)
2857 s = format (s, "- no session -\n");
2860 txs = svm_fifo_max_dequeue (stream_session->tx_fifo);
2861 rxs = svm_fifo_max_dequeue (stream_session->rx_fifo);
2862 s = format (s, "[rx %d tx %d]\n", rxs, txs);
2866 static clib_error_t *
2867 quic_show_connections_command_fn (vlib_main_t * vm,
2868 unformat_input_t * input,
2869 vlib_cli_command_t * cmd)
2871 unformat_input_t _line_input, *line_input = &_line_input;
2872 u8 show_listeners = 0, show_conn = 0, show_stream = 0;
2873 u32 num_workers = vlib_num_workers ();
2874 quic_main_t *qm = &quic_main;
2875 clib_error_t *error = 0;
2876 quic_ctx_t *ctx = NULL;
2878 session_cli_return_if_not_enabled ();
2880 if (!unformat_user (input, unformat_line_input, line_input))
2882 quic_show_aggregated_stats (vm);
2886 while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
2888 if (unformat (line_input, "listener"))
2890 else if (unformat (line_input, "conn"))
2892 else if (unformat (line_input, "stream"))
2896 error = clib_error_return (0, "unknown input `%U'",
2897 format_unformat_error, line_input);
2902 for (int i = 0; i < num_workers + 1; i++)
2905 pool_foreach (ctx, qm->ctx_pool[i])
2907 if (quic_ctx_is_stream (ctx) && show_stream)
2908 vlib_cli_output (vm, "%U", quic_format_stream_ctx, ctx);
2909 else if (quic_ctx_is_listener (ctx) && show_listeners)
2910 vlib_cli_output (vm, "%U", quic_format_listener_ctx, ctx);
2911 else if (quic_ctx_is_conn (ctx) && show_conn)
2912 vlib_cli_output (vm, "%U", quic_format_connection_ctx, ctx);
2918 unformat_free (line_input);
2923 VLIB_CLI_COMMAND (quic_plugin_crypto_command, static) = {
2924 .path = "quic set crypto api",
2925 .short_help = "quic set crypto api [picotls|vpp]",
2926 .function = quic_plugin_crypto_command_fn,
2928 VLIB_CLI_COMMAND(quic_plugin_set_fifo_size_command, static)=
2930 .path = "quic set fifo-size",
2931 .short_help = "quic set fifo-size N[K|M|G] (default 64K)",
2932 .function = quic_plugin_set_fifo_size_command_fn,
2934 VLIB_CLI_COMMAND(quic_show_ctx_command, static)=
2936 .path = "show quic",
2937 .short_help = "show quic",
2938 .function = quic_show_connections_command_fn,
2940 VLIB_CLI_COMMAND (quic_list_crypto_context_command, static) =
2942 .path = "show quic crypto context",
2943 .short_help = "list quic crypto contextes",
2944 .function = quic_list_crypto_context_command_fn,
2946 VLIB_CLI_COMMAND (quic_set_max_packets_per_key, static) =
2948 .path = "set quic max_packets_per_key",
2949 .short_help = "set quic max_packets_per_key 16777216",
2950 .function = quic_set_max_packets_per_key_fn,
2952 VLIB_CLI_COMMAND (quic_set_cc, static) = {
2953 .path = "set quic cc",
2954 .short_help = "set quic cc [reno|cubic]",
2955 .function = quic_set_cc_fn,
2957 VLIB_PLUGIN_REGISTER () =
2959 .version = VPP_BUILD_VER,
2960 .description = "Quic transport protocol",
2961 .default_disabled = 1,
2965 static clib_error_t *
2966 quic_config_fn (vlib_main_t * vm, unformat_input_t * input)
2968 unformat_input_t _line_input, *line_input = &_line_input;
2969 quic_main_t *qm = &quic_main;
2970 clib_error_t *error = 0;
2974 qm->udp_fifo_size = QUIC_DEFAULT_FIFO_SIZE;
2975 qm->udp_fifo_prealloc = 0;
2976 qm->connection_timeout = QUIC_DEFAULT_CONN_TIMEOUT;
2978 if (!unformat_user (input, unformat_line_input, line_input))
2981 while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
2983 if (unformat (line_input, "fifo-size %U", unformat_memory_size, &tmp))
2985 if (tmp >= 0x100000000ULL)
2987 error = clib_error_return (0,
2988 "fifo-size %llu (0x%llx) too large",
2992 qm->udp_fifo_size = tmp;
2994 else if (unformat (line_input, "conn-timeout %u", &i))
2995 qm->connection_timeout = i;
2996 else if (unformat (line_input, "fifo-prealloc %u", &i))
2997 qm->udp_fifo_prealloc = i;
3000 error = clib_error_return (0, "unknown input '%U'",
3001 format_unformat_error, line_input);
3006 unformat_free (line_input);
3010 VLIB_EARLY_CONFIG_FUNCTION (quic_config_fn, "quic");
3013 quic_node_fn (vlib_main_t * vm, vlib_node_runtime_t * node,
3014 vlib_frame_t * frame)
3020 VLIB_REGISTER_NODE (quic_input_node) =
3022 .function = quic_node_fn,
3023 .name = "quic-input",
3024 .vector_size = sizeof (u32),
3025 .type = VLIB_NODE_TYPE_INTERNAL,
3026 .n_errors = ARRAY_LEN (quic_error_strings),
3027 .error_strings = quic_error_strings,
3032 * fd.io coding-style-patch-verification: ON
3035 * eval: (c-set-style "gnu")