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>
29 #include <quic/quic_crypto.h>
31 #include <quicly/defaults.h>
33 static char *quic_error_strings[] = {
34 #define quic_error(n,s) s,
35 #include "quic_error.def"
39 static quic_main_t quic_main;
40 static void quic_update_timer (quic_ctx_t * ctx);
41 static int quic_check_quic_session_connected (quic_ctx_t * ctx);
43 /* Helper functions */
46 quic_ctx_alloc (u32 thread_index)
48 quic_main_t *qm = &quic_main;
51 pool_get (qm->ctx_pool[thread_index], ctx);
53 clib_memset (ctx, 0, sizeof (quic_ctx_t));
54 ctx->c_thread_index = thread_index;
55 QUIC_DBG (3, "Allocated quic_ctx %u on thread %u",
56 ctx - qm->ctx_pool[thread_index], thread_index);
57 return ctx - qm->ctx_pool[thread_index];
61 quic_ctx_free (quic_ctx_t * ctx)
63 QUIC_DBG (2, "Free ctx %u %x", ctx->c_thread_index, ctx->c_c_index);
64 u32 thread_index = ctx->c_thread_index;
66 clib_memset (ctx, 0xfb, sizeof (*ctx));
67 pool_put (quic_main.ctx_pool[thread_index], ctx);
71 quic_ctx_get (u32 ctx_index, u32 thread_index)
73 return pool_elt_at_index (quic_main.ctx_pool[thread_index], ctx_index);
77 quic_ctx_get_if_valid (u32 ctx_index, u32 thread_index)
79 if (pool_is_free_index (quic_main.ctx_pool[thread_index], ctx_index))
81 return pool_elt_at_index (quic_main.ctx_pool[thread_index], ctx_index);
85 quic_get_conn_ctx (quicly_conn_t * conn)
88 conn_data = (u64) * quicly_get_data (conn);
89 return quic_ctx_get (conn_data & UINT32_MAX, conn_data >> 32);
93 quic_store_conn_ctx (quicly_conn_t * conn, quic_ctx_t * ctx)
95 *quicly_get_data (conn) =
96 (void *) (((u64) ctx->c_thread_index) << 32 | (u64) ctx->c_c_index);
100 quic_ctx_is_stream (quic_ctx_t * ctx)
102 return (ctx->flags & QUIC_F_IS_STREAM);
106 quic_ctx_is_listener (quic_ctx_t * ctx)
108 return (ctx->flags & QUIC_F_IS_LISTENER);
112 get_stream_session_from_stream (quicly_stream_t * stream)
115 quic_stream_data_t *stream_data;
117 stream_data = (quic_stream_data_t *) stream->data;
118 ctx = quic_ctx_get (stream_data->ctx_id, stream_data->thread_index);
119 return session_get (ctx->c_s_index, stream_data->thread_index);
123 quic_make_connection_key (clib_bihash_kv_16_8_t * kv,
124 const quicly_cid_plaintext_t * id)
126 kv->key[0] = ((u64) id->master_id) << 32 | (u64) id->thread_id;
127 kv->key[1] = id->node_id;
131 quic_sendable_packet_count (session_t * udp_session)
134 u32 packet_size = QUIC_MAX_PACKET_SIZE + SESSION_CONN_HDR_LEN;
135 max_enqueue = svm_fifo_max_enqueue (udp_session->tx_fifo);
136 return clib_min (max_enqueue / packet_size, QUIC_SEND_PACKET_VEC_SIZE);
139 static quicly_context_t *
140 quic_get_quicly_ctx_from_ctx (quic_ctx_t * ctx)
142 return ctx->quicly_ctx;
145 static quicly_context_t *
146 quic_get_quicly_ctx_from_udp (u64 udp_session_handle)
148 session_t *udp_session = session_get_from_handle (udp_session_handle);
150 quic_ctx_get (udp_session->opaque, udp_session->thread_index);
151 return ctx->quicly_ctx;
155 quic_set_udp_tx_evt (session_t * udp_session)
158 if (svm_fifo_set_event (udp_session->tx_fifo))
159 rv = session_send_io_evt_to_thread (udp_session->tx_fifo,
161 if (PREDICT_FALSE (rv))
162 clib_warning ("Event enqueue errored %d", rv);
165 /* QUIC protocol actions */
168 quic_ack_rx_data (session_t * stream_session)
173 quicly_stream_t *stream;
174 quic_stream_data_t *stream_data;
176 sctx = quic_ctx_get (stream_session->connection_index,
177 stream_session->thread_index);
178 ASSERT (quic_ctx_is_stream (sctx));
179 stream = sctx->stream;
180 stream_data = (quic_stream_data_t *) stream->data;
182 f = stream_session->rx_fifo;
183 max_deq = svm_fifo_max_dequeue (f);
185 ASSERT (stream_data->app_rx_data_len >= max_deq);
186 quicly_stream_sync_recvbuf (stream, stream_data->app_rx_data_len - max_deq);
187 QUIC_DBG (3, "Acking %u bytes", stream_data->app_rx_data_len - max_deq);
188 stream_data->app_rx_data_len = max_deq;
192 quic_disconnect_transport (quic_ctx_t * ctx)
194 QUIC_DBG (2, "Disconnecting transport 0x%lx", ctx->udp_session_handle);
195 vnet_disconnect_args_t a = {
196 .handle = ctx->udp_session_handle,
197 .app_index = quic_main.app_index,
200 if (vnet_disconnect_session (&a))
201 clib_warning ("UDP session 0x%lx disconnect errored",
202 ctx->udp_session_handle);
206 quic_connection_delete (quic_ctx_t * ctx)
208 tw_timer_wheel_1t_3w_1024sl_ov_t *tw;
209 clib_bihash_kv_16_8_t kv;
212 QUIC_DBG (2, "Deleting connection %u", ctx->c_c_index);
214 ASSERT (!quic_ctx_is_stream (ctx));
217 if (ctx->timer_handle != QUIC_TIMER_HANDLE_INVALID)
219 tw = &quic_main.wrk_ctx[ctx->c_thread_index].timer_wheel;
220 tw_timer_stop_1t_3w_1024sl_ov (tw, ctx->timer_handle);
223 /* Delete the connection from the connection map */
225 quic_make_connection_key (&kv, quicly_get_master_id (conn));
226 QUIC_DBG (2, "Deleting conn with id %lu %lu from map", kv.key[0],
228 clib_bihash_add_del_16_8 (&quic_main.connection_hash, &kv, 0 /* is_add */ );
230 quic_disconnect_transport (ctx);
233 quicly_free (ctx->conn);
236 session_transport_delete_notify (&ctx->connection);
241 quic_increment_counter (u8 evt, u8 val)
243 vlib_main_t *vm = vlib_get_main ();
244 vlib_node_increment_counter (vm, quic_input_node.index, evt, val);
250 * Called when quicly return an error
251 * This function interacts tightly with quic_proto_on_close
254 quic_connection_closed (quic_ctx_t * ctx)
256 QUIC_DBG (2, "QUIC connection %u/%u closed", ctx->c_thread_index,
259 /* TODO if connection is not established, just delete the session? */
260 /* Actually should send connect or accept error */
262 switch (ctx->conn_state)
264 case QUIC_CONN_STATE_READY:
265 /* Error on an opened connection (timeout...)
266 This puts the session in closing state, we should receive a notification
267 when the app has closed its session */
268 session_transport_reset_notify (&ctx->connection);
269 /* This ensures we delete the connection when the app confirms the close */
270 ctx->conn_state = QUIC_CONN_STATE_PASSIVE_CLOSING_QUIC_CLOSED;
272 case QUIC_CONN_STATE_PASSIVE_CLOSING:
273 ctx->conn_state = QUIC_CONN_STATE_PASSIVE_CLOSING_QUIC_CLOSED;
274 /* quic_proto_on_close will eventually be called when the app confirms the close
275 , we delete the connection at that point */
277 case QUIC_CONN_STATE_PASSIVE_CLOSING_APP_CLOSED:
278 /* App already confirmed close, we can delete the connection */
279 quic_connection_delete (ctx);
281 case QUIC_CONN_STATE_PASSIVE_CLOSING_QUIC_CLOSED:
284 case QUIC_CONN_STATE_ACTIVE_CLOSING:
285 quic_connection_delete (ctx);
288 QUIC_DBG (0, "BUG %d", ctx->conn_state);
294 quic_send_datagram (session_t * udp_session, quicly_datagram_t * packet)
297 session_dgram_hdr_t hdr;
300 transport_connection_t *tc;
302 len = packet->data.len;
303 f = udp_session->tx_fifo;
304 tc = session_get_transport (udp_session);
305 max_enqueue = svm_fifo_max_enqueue (f);
306 if (max_enqueue < SESSION_CONN_HDR_LEN + len)
308 QUIC_DBG (1, "Too much data to send, max_enqueue %u, len %u",
309 max_enqueue, len + SESSION_CONN_HDR_LEN);
310 return QUIC_ERROR_FULL_FIFO;
313 /* Build packet header for fifo */
314 hdr.data_length = len;
316 hdr.is_ip4 = tc->is_ip4;
317 clib_memcpy (&hdr.lcl_ip, &tc->lcl_ip, sizeof (ip46_address_t));
318 hdr.lcl_port = tc->lcl_port;
320 /* Read dest address from quicly-provided sockaddr */
323 ASSERT (packet->dest.sa.sa_family == AF_INET);
324 struct sockaddr_in *sa4 = (struct sockaddr_in *) &packet->dest.sa;
325 hdr.rmt_port = sa4->sin_port;
326 hdr.rmt_ip.ip4.as_u32 = sa4->sin_addr.s_addr;
330 ASSERT (packet->dest.sa.sa_family == AF_INET6);
331 struct sockaddr_in6 *sa6 = (struct sockaddr_in6 *) &packet->dest.sa;
332 hdr.rmt_port = sa6->sin6_port;
333 clib_memcpy (&hdr.rmt_ip.ip6, &sa6->sin6_addr, 16);
336 ret = svm_fifo_enqueue (f, sizeof (hdr), (u8 *) & hdr);
337 if (ret != sizeof (hdr))
339 QUIC_DBG (1, "Not enough space to enqueue header");
340 return QUIC_ERROR_FULL_FIFO;
342 ret = svm_fifo_enqueue (f, len, packet->data.base);
345 QUIC_DBG (1, "Not enough space to enqueue payload");
346 return QUIC_ERROR_FULL_FIFO;
349 quic_increment_counter (QUIC_ERROR_TX_PACKETS, 1);
355 quic_send_packets (quic_ctx_t * ctx)
357 quicly_datagram_t *packets[QUIC_SEND_PACKET_VEC_SIZE];
358 session_t *udp_session;
360 size_t num_packets, i, max_packets;
361 quicly_packet_allocator_t *pa;
362 quicly_context_t *quicly_context;
365 /* We have sctx, get qctx */
366 if (quic_ctx_is_stream (ctx))
367 ctx = quic_ctx_get (ctx->quic_connection_ctx_id, ctx->c_thread_index);
369 ASSERT (!quic_ctx_is_stream (ctx));
371 udp_session = session_get_from_handle_if_valid (ctx->udp_session_handle);
380 /* TODO : quicly can assert it can send min_packets up to 2 */
381 if (quic_sendable_packet_count (udp_session) < 2)
384 quicly_context = quic_get_quicly_ctx_from_ctx (ctx);
387 clib_warning ("Tried to send packets on non existing app worker %u",
388 ctx->parent_app_wrk_id);
389 quic_connection_delete (ctx);
392 pa = quicly_context->packet_allocator;
395 max_packets = quic_sendable_packet_count (udp_session);
398 num_packets = max_packets;
399 if ((err = quicly_send (conn, packets, &num_packets)))
402 for (i = 0; i != num_packets; ++i)
404 if ((err = quic_send_datagram (udp_session, packets[i])))
407 pa->free_packet (pa, packets[i]);
410 while (num_packets > 0 && num_packets == max_packets);
413 quic_set_udp_tx_evt (udp_session);
415 QUIC_DBG (3, "%u[TX] %u[RX]", svm_fifo_max_dequeue (udp_session->tx_fifo),
416 svm_fifo_max_dequeue (udp_session->rx_fifo));
417 quic_update_timer (ctx);
421 if (err && err != QUICLY_ERROR_PACKET_IGNORED
422 && err != QUICLY_ERROR_FREE_CONNECTION)
423 clib_warning ("Quic error '%U'.", quic_format_err, err);
424 quic_connection_closed (ctx);
428 /* Quicly callbacks */
431 quic_on_stream_destroy (quicly_stream_t * stream, int err)
433 quic_stream_data_t *stream_data = (quic_stream_data_t *) stream->data;
434 quic_ctx_t *sctx = quic_ctx_get (stream_data->ctx_id,
435 stream_data->thread_index);
436 session_t *stream_session = session_get (sctx->c_s_index,
437 sctx->c_thread_index);
438 QUIC_DBG (2, "DESTROYED_STREAM: session 0x%lx (%U)",
439 session_handle (stream_session), quic_format_err, err);
441 stream_session->session_state = SESSION_STATE_CLOSED;
442 session_transport_delete_notify (&sctx->connection);
444 quic_ctx_free (sctx);
445 clib_mem_free (stream->data);
449 quic_on_stop_sending (quicly_stream_t * stream, int err)
452 quic_stream_data_t *stream_data = (quic_stream_data_t *) stream->data;
453 quic_ctx_t *sctx = quic_ctx_get (stream_data->ctx_id,
454 stream_data->thread_index);
455 session_t *stream_session = session_get (sctx->c_s_index,
456 sctx->c_thread_index);
457 clib_warning ("(NOT IMPLEMENTD) STOP_SENDING: session 0x%lx (%U)",
458 session_handle (stream_session), quic_format_err, err);
460 /* TODO : handle STOP_SENDING */
465 quic_on_receive_reset (quicly_stream_t * stream, int err)
467 quic_stream_data_t *stream_data = (quic_stream_data_t *) stream->data;
468 quic_ctx_t *sctx = quic_ctx_get (stream_data->ctx_id,
469 stream_data->thread_index);
471 session_t *stream_session = session_get (sctx->c_s_index,
472 sctx->c_thread_index);
473 clib_warning ("RESET_STREAM: session 0x%lx (%U)",
474 session_handle (stream_session), quic_format_err, err);
476 session_transport_closing_notify (&sctx->connection);
481 quic_on_receive (quicly_stream_t * stream, size_t off, const void *src,
484 QUIC_DBG (3, "received data: %lu bytes, offset %lu", len, off);
487 session_t *stream_session;
488 app_worker_t *app_wrk;
490 quic_stream_data_t *stream_data;
493 stream_data = (quic_stream_data_t *) stream->data;
494 sctx = quic_ctx_get (stream_data->ctx_id, stream_data->thread_index);
495 stream_session = session_get (sctx->c_s_index, stream_data->thread_index);
496 f = stream_session->rx_fifo;
498 max_enq = svm_fifo_max_enqueue_prod (f);
499 QUIC_DBG (3, "Enqueuing %u at off %u in %u space", len, off, max_enq);
500 if (off - stream_data->app_rx_data_len + len > max_enq)
502 QUIC_DBG (1, "Error RX fifo is full");
505 if (off == stream_data->app_rx_data_len)
507 /* Streams live on the same thread so (f, stream_data) should stay consistent */
508 rlen = svm_fifo_enqueue (f, len, (u8 *) src);
509 stream_data->app_rx_data_len += rlen;
510 ASSERT (rlen >= len);
511 app_wrk = app_worker_get_if_valid (stream_session->app_wrk_index);
512 if (PREDICT_TRUE (app_wrk != 0))
513 app_worker_lock_and_send_event (app_wrk, stream_session,
515 quic_ack_rx_data (stream_session);
519 rlen = svm_fifo_enqueue_with_offset (f,
520 off - stream_data->app_rx_data_len,
528 quic_fifo_egress_shift (quicly_stream_t * stream, size_t delta)
530 session_t *stream_session;
534 stream_session = get_stream_session_from_stream (stream);
535 f = stream_session->tx_fifo;
537 rv = svm_fifo_dequeue_drop (f, delta);
538 ASSERT (rv == delta);
539 quicly_stream_sync_sendbuf (stream, 0);
543 quic_fifo_egress_emit (quicly_stream_t * stream, size_t off, void *dst,
544 size_t * len, int *wrote_all)
546 session_t *stream_session;
548 u32 deq_max, first_deq, max_rd_chunk, rem_offset;
550 stream_session = get_stream_session_from_stream (stream);
551 f = stream_session->tx_fifo;
553 QUIC_DBG (3, "Emitting %u, offset %u", *len, off);
555 deq_max = svm_fifo_max_dequeue_cons (f);
556 ASSERT (off <= deq_max);
557 if (off + *len < deq_max)
564 *len = deq_max - off;
565 QUIC_DBG (3, "Wrote ALL, %u", *len);
568 /* TODO, use something like : return svm_fifo_peek (f, off, *len, dst); */
569 max_rd_chunk = svm_fifo_max_read_chunk (f);
572 if (off < max_rd_chunk)
574 first_deq = clib_min (*len, max_rd_chunk - off);
575 clib_memcpy_fast (dst, svm_fifo_head (f) + off, first_deq);
578 if (max_rd_chunk < off + *len)
580 rem_offset = max_rd_chunk < off ? off - max_rd_chunk : 0;
581 clib_memcpy_fast (dst + first_deq, f->head_chunk->data + rem_offset,
588 static const quicly_stream_callbacks_t quic_stream_callbacks = {
589 .on_destroy = quic_on_stream_destroy,
590 .on_send_shift = quic_fifo_egress_shift,
591 .on_send_emit = quic_fifo_egress_emit,
592 .on_send_stop = quic_on_stop_sending,
593 .on_receive = quic_on_receive,
594 .on_receive_reset = quic_on_receive_reset
598 quic_on_stream_open (quicly_stream_open_t * self, quicly_stream_t * stream)
600 session_t *stream_session, *quic_session;
601 quic_stream_data_t *stream_data;
602 app_worker_t *app_wrk;
603 quic_ctx_t *qctx, *sctx;
607 QUIC_DBG (2, "on_stream_open called");
608 stream->data = clib_mem_alloc (sizeof (quic_stream_data_t));
609 stream->callbacks = &quic_stream_callbacks;
610 /* Notify accept on parent qsession, but only if this is not a locally
611 * initiated stream */
612 if (quicly_stream_is_self_initiated (stream))
615 sctx_id = quic_ctx_alloc (vlib_get_thread_index ());
616 qctx = quic_get_conn_ctx (stream->conn);
618 /* Might need to signal that the connection is ready if the first thing the
619 * server does is open a stream */
620 quic_check_quic_session_connected (qctx);
621 /* ctx might be invalidated */
622 qctx = quic_get_conn_ctx (stream->conn);
624 stream_session = session_alloc (qctx->c_thread_index);
625 QUIC_DBG (2, "ACCEPTED stream_session 0x%lx ctx %u",
626 session_handle (stream_session), sctx_id);
627 sctx = quic_ctx_get (sctx_id, qctx->c_thread_index);
628 sctx->parent_app_wrk_id = qctx->parent_app_wrk_id;
629 sctx->parent_app_id = qctx->parent_app_id;
630 sctx->quic_connection_ctx_id = qctx->c_c_index;
631 sctx->c_c_index = sctx_id;
632 sctx->c_s_index = stream_session->session_index;
633 sctx->stream = stream;
634 sctx->c_flags |= TRANSPORT_CONNECTION_F_NO_LOOKUP;
635 sctx->flags |= QUIC_F_IS_STREAM;
637 stream_data = (quic_stream_data_t *) stream->data;
638 stream_data->ctx_id = sctx_id;
639 stream_data->thread_index = sctx->c_thread_index;
640 stream_data->app_rx_data_len = 0;
642 sctx->c_s_index = stream_session->session_index;
643 stream_session->session_state = SESSION_STATE_CREATED;
644 stream_session->app_wrk_index = sctx->parent_app_wrk_id;
645 stream_session->connection_index = sctx->c_c_index;
646 stream_session->session_type =
647 session_type_from_proto_and_ip (TRANSPORT_PROTO_QUIC, qctx->udp_is_ip4);
648 quic_session = session_get (qctx->c_s_index, qctx->c_thread_index);
649 stream_session->listener_handle = listen_session_get_handle (quic_session);
651 app_wrk = app_worker_get (stream_session->app_wrk_index);
652 if ((rv = app_worker_init_connected (app_wrk, stream_session)))
654 QUIC_DBG (1, "failed to allocate fifos");
655 session_free (stream_session);
656 quicly_reset_stream (stream, QUIC_APP_ALLOCATION_ERROR);
657 return 0; /* Frame is still valid */
659 svm_fifo_add_want_deq_ntf (stream_session->rx_fifo,
660 SVM_FIFO_WANT_DEQ_NOTIF_IF_FULL |
661 SVM_FIFO_WANT_DEQ_NOTIF_IF_EMPTY);
663 if ((rv = app_worker_accept_notify (app_wrk, stream_session)))
665 QUIC_DBG (1, "failed to notify accept worker app");
666 session_free_w_fifos (stream_session);
667 quicly_reset_stream (stream, QUIC_APP_ACCEPT_NOTIFY_ERROR);
668 return 0; /* Frame is still valid */
675 quic_on_closed_by_peer (quicly_closed_by_peer_t * self, quicly_conn_t * conn,
676 int code, uint64_t frame_type,
677 const char *reason, size_t reason_len)
679 quic_ctx_t *ctx = quic_get_conn_ctx (conn);
681 session_t *quic_session = session_get (ctx->c_s_index, ctx->c_thread_index);
682 clib_warning ("Session 0x%lx closed by peer (%U) %.*s ",
683 session_handle (quic_session), quic_format_err, code,
686 ctx->conn_state = QUIC_CONN_STATE_PASSIVE_CLOSING;
687 session_transport_closing_notify (&ctx->connection);
690 static quicly_stream_open_t on_stream_open = { quic_on_stream_open };
691 static quicly_closed_by_peer_t on_closed_by_peer = { quic_on_closed_by_peer };
696 quic_get_thread_time (u8 thread_index)
698 return quic_main.wrk_ctx[thread_index].time_now;
702 quic_get_time (quicly_now_t * self)
704 u8 thread_index = vlib_get_thread_index ();
705 return quic_get_thread_time (thread_index);
708 static quicly_now_t quicly_vpp_now_cb = { quic_get_time };
711 quic_set_time_now (u32 thread_index)
713 vlib_main_t *vlib_main = vlib_get_main ();
714 f64 time = vlib_time_now (vlib_main);
715 quic_main.wrk_ctx[thread_index].time_now = (int64_t) (time * 1000.f);
716 return quic_main.wrk_ctx[thread_index].time_now;
719 /* Transport proto callback */
721 quic_update_time (f64 now, u8 thread_index)
723 tw_timer_wheel_1t_3w_1024sl_ov_t *tw;
725 tw = &quic_main.wrk_ctx[thread_index].timer_wheel;
726 quic_set_time_now (thread_index);
727 tw_timer_expire_timers_1t_3w_1024sl_ov (tw, now);
731 quic_timer_expired (u32 conn_index)
734 QUIC_DBG (4, "Timer expired for conn %u at %ld", conn_index,
735 quic_get_time (NULL));
736 ctx = quic_ctx_get (conn_index, vlib_get_thread_index ());
737 ctx->timer_handle = QUIC_TIMER_HANDLE_INVALID;
738 quic_send_packets (ctx);
742 quic_update_timer (quic_ctx_t * ctx)
744 tw_timer_wheel_1t_3w_1024sl_ov_t *tw;
745 int64_t next_timeout, next_interval;
746 session_t *quic_session;
748 /* This timeout is in ms which is the unit of our timer */
749 next_timeout = quicly_get_first_timeout (ctx->conn);
750 next_interval = next_timeout - quic_get_time (NULL);
752 if (next_timeout == 0 || next_interval <= 0)
754 if (ctx->c_s_index == QUIC_SESSION_INVALID)
760 quic_session = session_get (ctx->c_s_index, ctx->c_thread_index);
761 if (svm_fifo_set_event (quic_session->tx_fifo))
762 session_send_io_evt_to_thread_custom (quic_session,
763 quic_session->thread_index,
764 SESSION_IO_EVT_BUILTIN_TX);
769 tw = &quic_main.wrk_ctx[vlib_get_thread_index ()].timer_wheel;
771 QUIC_DBG (4, "Timer set to %ld (int %ld) for ctx %u", next_timeout,
772 next_interval, ctx->c_c_index);
774 if (ctx->timer_handle == QUIC_TIMER_HANDLE_INVALID)
776 if (next_timeout == INT64_MAX)
778 QUIC_DBG (4, "timer for ctx %u already stopped", ctx->c_c_index);
781 ctx->timer_handle = tw_timer_start_1t_3w_1024sl_ov (tw, ctx->c_c_index,
786 if (next_timeout == INT64_MAX)
788 tw_timer_stop_1t_3w_1024sl_ov (tw, ctx->timer_handle);
789 ctx->timer_handle = QUIC_TIMER_HANDLE_INVALID;
790 QUIC_DBG (4, "Stopping timer for ctx %u", ctx->c_c_index);
793 tw_timer_update_1t_3w_1024sl_ov (tw, ctx->timer_handle,
800 quic_expired_timers_dispatch (u32 * expired_timers)
804 for (i = 0; i < vec_len (expired_timers); i++)
806 quic_timer_expired (expired_timers[i]);
811 quic_encrypt_ticket_cb (ptls_encrypt_ticket_t * _self, ptls_t * tls,
812 int is_encrypt, ptls_buffer_t * dst, ptls_iovec_t src)
814 quic_session_cache_t *self = (void *) _self;
820 /* replace the cached entry along with a newly generated session id */
821 clib_mem_free (self->data.base);
822 if ((self->data.base = clib_mem_alloc (src.len)) == NULL)
823 return PTLS_ERROR_NO_MEMORY;
825 ptls_get_context (tls)->random_bytes (self->id, sizeof (self->id));
826 clib_memcpy (self->data.base, src.base, src.len);
827 self->data.len = src.len;
829 /* store the session id in buffer */
830 if ((ret = ptls_buffer_reserve (dst, sizeof (self->id))) != 0)
832 clib_memcpy (dst->base + dst->off, self->id, sizeof (self->id));
833 dst->off += sizeof (self->id);
839 /* check if session id is the one stored in cache */
840 if (src.len != sizeof (self->id))
841 return PTLS_ERROR_SESSION_NOT_FOUND;
842 if (clib_memcmp (self->id, src.base, sizeof (self->id)) != 0)
843 return PTLS_ERROR_SESSION_NOT_FOUND;
845 /* return the cached value */
846 if ((ret = ptls_buffer_reserve (dst, self->data.len)) != 0)
848 clib_memcpy (dst->base + dst->off, self->data.base, self->data.len);
849 dst->off += self->data.len;
856 quic_store_quicly_ctx (application_t * app, u32 cert_key_index)
858 quic_main_t *qm = &quic_main;
859 quicly_context_t *quicly_ctx;
860 ptls_iovec_t key_vec;
861 app_cert_key_pair_t *ckpair;
866 quicly_ctx_data_t *quicly_ctx_data =
867 clib_mem_alloc (sizeof (quicly_ctx_data_t));
868 clib_memset (quicly_ctx_data, 0, sizeof (*quicly_ctx_data)); /* picotls depends on this */
869 quicly_ctx = &quicly_ctx_data->quicly_ctx;
870 ptls_context_t *ptls_ctx = &quicly_ctx_data->ptls_ctx;
871 ptls_ctx->random_bytes = ptls_openssl_random_bytes;
872 ptls_ctx->get_time = &ptls_get_time;
873 ptls_ctx->key_exchanges = ptls_openssl_key_exchanges;
874 ptls_ctx->cipher_suites = qm->quic_ciphers[qm->default_cipher];
875 ptls_ctx->certificates.list = NULL;
876 ptls_ctx->certificates.count = 0;
877 ptls_ctx->esni = NULL;
878 ptls_ctx->on_client_hello = NULL;
879 ptls_ctx->emit_certificate = NULL;
880 ptls_ctx->sign_certificate = NULL;
881 ptls_ctx->verify_certificate = NULL;
882 ptls_ctx->ticket_lifetime = 86400;
883 ptls_ctx->max_early_data_size = 8192;
884 ptls_ctx->hkdf_label_prefix__obsolete = NULL;
885 ptls_ctx->require_dhe_on_psk = 1;
886 ptls_ctx->encrypt_ticket = &qm->session_cache.super;
888 app->quicly_ctx = (u64 *) quicly_ctx;
889 clib_memcpy (quicly_ctx, &quicly_spec_context, sizeof (quicly_context_t));
891 quicly_ctx->max_packet_size = QUIC_MAX_PACKET_SIZE;
892 quicly_ctx->tls = ptls_ctx;
893 quicly_ctx->stream_open = &on_stream_open;
894 quicly_ctx->closed_by_peer = &on_closed_by_peer;
895 quicly_ctx->now = &quicly_vpp_now_cb;
896 quicly_amend_ptls_context (quicly_ctx->tls);
898 quicly_ctx->transport_params.max_data = QUIC_INT_MAX;
899 quicly_ctx->transport_params.max_streams_uni = (uint64_t) 1 << 60;
900 quicly_ctx->transport_params.max_streams_bidi = (uint64_t) 1 << 60;
902 /* max_enq is FIFO_SIZE - 1 */
903 max_enq = app->sm_properties.rx_fifo_size - 1;
904 quicly_ctx->transport_params.max_stream_data.bidi_local = max_enq;
905 max_enq = app->sm_properties.tx_fifo_size - 1;
906 quicly_ctx->transport_params.max_stream_data.bidi_remote = max_enq;
907 quicly_ctx->transport_params.max_stream_data.uni = QUIC_INT_MAX;
909 quicly_ctx->tls->random_bytes (quicly_ctx_data->cid_key, 16);
910 quicly_ctx_data->cid_key[16] = 0;
911 key_vec = ptls_iovec_init (quicly_ctx_data->cid_key,
912 strlen (quicly_ctx_data->cid_key));
913 quicly_ctx->cid_encryptor =
914 quicly_new_default_cid_encryptor (&ptls_openssl_bfecb,
915 &ptls_openssl_aes128ecb,
916 &ptls_openssl_sha256, key_vec);
918 ckpair = app_cert_key_pair_get_if_valid (cert_key_index);
919 if (ckpair && ckpair->key != NULL && ckpair->cert != NULL)
921 if (load_bio_private_key (quicly_ctx->tls, (char *) ckpair->key))
923 QUIC_DBG (1, "failed to read private key from app configuration\n");
925 if (load_bio_certificate_chain (quicly_ctx->tls, (char *) ckpair->cert))
927 QUIC_DBG (1, "failed to load certificate\n");
932 /* Transport proto functions */
935 quic_connect_stream (session_t * quic_session, u32 opaque)
937 uint64_t quic_session_handle;
938 session_t *stream_session;
939 quic_stream_data_t *stream_data;
940 quicly_stream_t *stream;
942 app_worker_t *app_wrk;
943 quic_ctx_t *qctx, *sctx;
947 /* Find base session to which the user want to attach a stream */
948 quic_session_handle = session_handle (quic_session);
949 QUIC_DBG (2, "Opening new stream (qsession %u)", quic_session_handle);
951 if (session_type_transport_proto (quic_session->session_type) !=
952 TRANSPORT_PROTO_QUIC)
954 QUIC_DBG (1, "received incompatible session");
958 app_wrk = app_worker_get_if_valid (quic_session->app_wrk_index);
961 QUIC_DBG (1, "Invalid app worker :(");
965 sctx_index = quic_ctx_alloc (quic_session->thread_index); /* Allocate before we get pointers */
966 sctx = quic_ctx_get (sctx_index, quic_session->thread_index);
967 qctx = quic_ctx_get (quic_session->connection_index,
968 quic_session->thread_index);
969 if (quic_ctx_is_stream (qctx))
971 QUIC_DBG (1, "session is a stream");
972 quic_ctx_free (sctx);
976 sctx->parent_app_wrk_id = qctx->parent_app_wrk_id;
977 sctx->parent_app_id = qctx->parent_app_id;
978 sctx->quic_connection_ctx_id = qctx->c_c_index;
979 sctx->c_c_index = sctx_index;
980 sctx->c_flags |= TRANSPORT_CONNECTION_F_NO_LOOKUP;
981 sctx->flags |= QUIC_F_IS_STREAM;
985 if (!conn || !quicly_connection_is_ready (conn))
988 if ((rv = quicly_open_stream (conn, &stream, 0 /* uni */ )))
990 QUIC_DBG (2, "Stream open failed with %d", rv);
993 sctx->stream = stream;
995 QUIC_DBG (2, "Opened stream %d, creating session", stream->stream_id);
997 stream_session = session_alloc (qctx->c_thread_index);
998 QUIC_DBG (2, "Allocated stream_session 0x%lx ctx %u",
999 session_handle (stream_session), sctx_index);
1000 stream_session->app_wrk_index = app_wrk->wrk_index;
1001 stream_session->connection_index = sctx_index;
1002 stream_session->listener_handle = quic_session_handle;
1003 stream_session->session_type =
1004 session_type_from_proto_and_ip (TRANSPORT_PROTO_QUIC, qctx->udp_is_ip4);
1006 sctx->c_s_index = stream_session->session_index;
1008 if (app_worker_init_connected (app_wrk, stream_session))
1010 QUIC_DBG (1, "failed to app_worker_init_connected");
1011 quicly_reset_stream (stream, QUIC_APP_ALLOCATION_ERROR);
1012 session_free_w_fifos (stream_session);
1013 quic_ctx_free (sctx);
1014 return app_worker_connect_notify (app_wrk, NULL, opaque);
1017 svm_fifo_add_want_deq_ntf (stream_session->rx_fifo,
1018 SVM_FIFO_WANT_DEQ_NOTIF_IF_FULL |
1019 SVM_FIFO_WANT_DEQ_NOTIF_IF_EMPTY);
1021 stream_session->session_state = SESSION_STATE_READY;
1022 if (app_worker_connect_notify (app_wrk, stream_session, opaque))
1024 QUIC_DBG (1, "failed to notify app");
1025 quicly_reset_stream (stream, QUIC_APP_CONNECT_NOTIFY_ERROR);
1026 session_free_w_fifos (stream_session);
1027 quic_ctx_free (sctx);
1030 stream_data = (quic_stream_data_t *) stream->data;
1031 stream_data->ctx_id = sctx->c_c_index;
1032 stream_data->thread_index = sctx->c_thread_index;
1033 stream_data->app_rx_data_len = 0;
1038 quic_connect_connection (session_endpoint_cfg_t * sep)
1040 vnet_connect_args_t _cargs, *cargs = &_cargs;
1041 quic_main_t *qm = &quic_main;
1043 app_worker_t *app_wrk;
1048 clib_memset (cargs, 0, sizeof (*cargs));
1049 ctx_index = quic_ctx_alloc (vlib_get_thread_index ());
1050 ctx = quic_ctx_get (ctx_index, vlib_get_thread_index ());
1051 ctx->parent_app_wrk_id = sep->app_wrk_index;
1052 ctx->c_s_index = QUIC_SESSION_INVALID;
1053 ctx->c_c_index = ctx_index;
1054 ctx->udp_is_ip4 = sep->is_ip4;
1055 ctx->timer_handle = QUIC_TIMER_HANDLE_INVALID;
1056 ctx->conn_state = QUIC_CONN_STATE_HANDSHAKE;
1057 ctx->client_opaque = sep->opaque;
1058 ctx->c_flags |= TRANSPORT_CONNECTION_F_NO_LOOKUP;
1060 ctx->srv_hostname = format (0, "%v", sep->hostname);
1062 /* needed by quic for crypto + determining client / server */
1063 ctx->srv_hostname = format (0, "%U", format_ip46_address,
1064 &sep->ip, sep->is_ip4);
1065 vec_terminate_c_string (ctx->srv_hostname);
1067 clib_memcpy (&cargs->sep, sep, sizeof (session_endpoint_cfg_t));
1068 cargs->sep.transport_proto = TRANSPORT_PROTO_UDPC;
1069 cargs->app_index = qm->app_index;
1070 cargs->api_context = ctx_index;
1072 app_wrk = app_worker_get (sep->app_wrk_index);
1073 app = application_get (app_wrk->app_index);
1074 ctx->parent_app_id = app_wrk->app_index;
1075 cargs->sep_ext.ns_index = app->ns_index;
1077 quic_store_quicly_ctx (app, ctx->ckpair_index);
1078 /* Also store it in ctx for convenience
1079 * Waiting for crypto_ctx logic */
1080 ctx->quicly_ctx = (quicly_context_t *) app->quicly_ctx;
1082 if ((error = vnet_connect (cargs)))
1089 quic_connect (transport_endpoint_cfg_t * tep)
1091 QUIC_DBG (2, "Called quic_connect");
1092 session_endpoint_cfg_t *sep = (session_endpoint_cfg_t *) tep;
1093 session_t *quic_session;
1094 sep = (session_endpoint_cfg_t *) tep;
1096 quic_session = session_get_from_handle_if_valid (sep->parent_handle);
1098 return quic_connect_stream (quic_session, sep->opaque);
1100 return quic_connect_connection (sep);
1104 quic_proto_on_close (u32 ctx_index, u32 thread_index)
1106 quic_ctx_t *ctx = quic_ctx_get_if_valid (ctx_index, thread_index);
1110 session_t *stream_session = session_get (ctx->c_s_index,
1111 ctx->c_thread_index);
1112 clib_warning ("Closing session 0x%lx", session_handle (stream_session));
1114 if (quic_ctx_is_stream (ctx))
1116 quicly_stream_t *stream = ctx->stream;
1117 quicly_reset_stream (stream, QUIC_APP_ERROR_CLOSE_NOTIFY);
1118 quic_send_packets (ctx);
1122 switch (ctx->conn_state)
1124 case QUIC_CONN_STATE_READY:
1125 ctx->conn_state = QUIC_CONN_STATE_ACTIVE_CLOSING;
1126 quicly_conn_t *conn = ctx->conn;
1127 /* Start connection closing. Keep sending packets until quicly_send
1128 returns QUICLY_ERROR_FREE_CONNECTION */
1129 quicly_close (conn, QUIC_APP_ERROR_CLOSE_NOTIFY, "Closed by peer");
1130 /* This also causes all streams to be closed (and the cb called) */
1131 quic_send_packets (ctx);
1133 case QUIC_CONN_STATE_PASSIVE_CLOSING:
1134 ctx->conn_state = QUIC_CONN_STATE_PASSIVE_CLOSING_APP_CLOSED;
1135 /* send_packets will eventually return an error, we delete the conn at
1138 case QUIC_CONN_STATE_PASSIVE_CLOSING_QUIC_CLOSED:
1139 quic_connection_delete (ctx);
1142 QUIC_DBG (0, "BUG");
1148 quic_start_listen (u32 quic_listen_session_index, transport_endpoint_t * tep)
1150 vnet_listen_args_t _bargs, *args = &_bargs;
1151 quic_main_t *qm = &quic_main;
1152 session_handle_t udp_handle;
1153 session_endpoint_cfg_t *sep;
1154 session_t *udp_listen_session;
1155 app_worker_t *app_wrk;
1159 app_listener_t *app_listener;
1161 sep = (session_endpoint_cfg_t *) tep;
1162 app_wrk = app_worker_get (sep->app_wrk_index);
1163 /* We need to call this because we call app_worker_init_connected in
1164 * quic_accept_stream, which assumes the connect segment manager exists */
1165 app_worker_alloc_connects_segment_manager (app_wrk);
1166 app = application_get (app_wrk->app_index);
1167 QUIC_DBG (2, "Called quic_start_listen for app %d", app_wrk->app_index);
1169 quic_store_quicly_ctx (app, sep->ckpair_index);
1171 sep->transport_proto = TRANSPORT_PROTO_UDPC;
1172 clib_memset (args, 0, sizeof (*args));
1173 args->app_index = qm->app_index;
1174 args->sep_ext = *sep;
1175 args->sep_ext.ns_index = app->ns_index;
1176 if (vnet_listen (args))
1179 lctx_index = quic_ctx_alloc (0);
1180 udp_handle = args->handle;
1181 app_listener = app_listener_get_w_handle (udp_handle);
1182 udp_listen_session = app_listener_get_session (app_listener);
1183 udp_listen_session->opaque = lctx_index;
1185 lctx = quic_ctx_get (lctx_index, 0);
1186 lctx->flags |= QUIC_F_IS_LISTENER;
1187 /* Also store it in ctx for convenience
1188 * Waiting for crypto_ctx logic */
1189 lctx->quicly_ctx = (quicly_context_t *) app->quicly_ctx;
1191 clib_memcpy (&lctx->c_rmt_ip, &args->sep.peer.ip, sizeof (ip46_address_t));
1192 clib_memcpy (&lctx->c_lcl_ip, &args->sep.ip, sizeof (ip46_address_t));
1193 lctx->c_rmt_port = args->sep.peer.port;
1194 lctx->c_lcl_port = args->sep.port;
1195 lctx->c_is_ip4 = args->sep.is_ip4;
1196 lctx->c_fib_index = args->sep.fib_index;
1197 lctx->c_proto = TRANSPORT_PROTO_QUIC;
1198 lctx->parent_app_wrk_id = sep->app_wrk_index;
1199 lctx->parent_app_id = app_wrk->app_index;
1200 lctx->udp_session_handle = udp_handle;
1201 lctx->c_s_index = quic_listen_session_index;
1203 QUIC_DBG (2, "Listening UDP session 0x%lx",
1204 session_handle (udp_listen_session));
1205 QUIC_DBG (2, "Listening QUIC session 0x%lx", quic_listen_session_index);
1210 quic_stop_listen (u32 lctx_index)
1212 QUIC_DBG (2, "Called quic_stop_listen");
1214 lctx = quic_ctx_get (lctx_index, 0);
1215 ASSERT (quic_ctx_is_listener (lctx));
1216 vnet_unlisten_args_t a = {
1217 .handle = lctx->udp_session_handle,
1218 .app_index = quic_main.app_index,
1219 .wrk_map_index = 0 /* default wrk */
1221 if (vnet_unlisten (&a))
1222 clib_warning ("unlisten errored");
1224 /* TODO: crypto state cleanup */
1226 quic_ctx_free (lctx);
1230 static transport_connection_t *
1231 quic_connection_get (u32 ctx_index, u32 thread_index)
1234 ctx = quic_ctx_get (ctx_index, thread_index);
1235 return &ctx->connection;
1238 static transport_connection_t *
1239 quic_listener_get (u32 listener_index)
1241 QUIC_DBG (2, "Called quic_listener_get");
1243 ctx = quic_ctx_get (listener_index, 0);
1244 return &ctx->connection;
1248 format_quic_ctx (u8 * s, va_list * args)
1250 quic_ctx_t *ctx = va_arg (*args, quic_ctx_t *);
1251 u32 verbose = va_arg (*args, u32);
1256 str = format (str, "[#%d][Q] ", ctx->c_thread_index);
1258 if (quic_ctx_is_listener (ctx))
1259 str = format (str, "Listener, UDP %ld", ctx->udp_session_handle);
1260 else if (quic_ctx_is_stream (ctx))
1261 str = format (str, "Stream %ld conn %d",
1262 ctx->stream->stream_id, ctx->quic_connection_ctx_id);
1263 else /* connection */
1264 str = format (str, "Conn %d UDP %d", ctx->c_c_index,
1265 ctx->udp_session_handle);
1267 str = format (str, " app %d wrk %d", ctx->parent_app_id,
1268 ctx->parent_app_wrk_id);
1271 s = format (s, "%-50s%-15d", str, ctx->conn_state);
1273 s = format (s, "%s\n", str);
1279 format_quic_connection (u8 * s, va_list * args)
1281 u32 qc_index = va_arg (*args, u32);
1282 u32 thread_index = va_arg (*args, u32);
1283 u32 verbose = va_arg (*args, u32);
1284 quic_ctx_t *ctx = quic_ctx_get (qc_index, thread_index);
1285 s = format (s, "%U", format_quic_ctx, ctx, verbose);
1290 format_quic_half_open (u8 * s, va_list * args)
1292 u32 qc_index = va_arg (*args, u32);
1293 u32 thread_index = va_arg (*args, u32);
1294 quic_ctx_t *ctx = quic_ctx_get (qc_index, thread_index);
1295 s = format (s, "[#%d][Q] half-open app %u", thread_index,
1296 ctx->parent_app_id);
1302 format_quic_listener (u8 * s, va_list * args)
1304 u32 tci = va_arg (*args, u32);
1305 u32 thread_index = va_arg (*args, u32);
1306 u32 verbose = va_arg (*args, u32);
1307 quic_ctx_t *ctx = quic_ctx_get (tci, thread_index);
1308 s = format (s, "%U", format_quic_ctx, ctx, verbose);
1312 /* Session layer callbacks */
1315 quic_build_sockaddr (struct sockaddr *sa, socklen_t * salen,
1316 ip46_address_t * addr, u16 port, u8 is_ip4)
1320 struct sockaddr_in *sa4 = (struct sockaddr_in *) sa;
1321 sa4->sin_family = AF_INET;
1322 sa4->sin_port = port;
1323 sa4->sin_addr.s_addr = addr->ip4.as_u32;
1324 *salen = sizeof (struct sockaddr_in);
1328 struct sockaddr_in6 *sa6 = (struct sockaddr_in6 *) sa;
1329 sa6->sin6_family = AF_INET6;
1330 sa6->sin6_port = port;
1331 clib_memcpy (&sa6->sin6_addr, &addr->ip6, 16);
1332 *salen = sizeof (struct sockaddr_in6);
1337 quic_on_quic_session_connected (quic_ctx_t * ctx)
1339 session_t *quic_session;
1340 app_worker_t *app_wrk;
1341 u32 ctx_id = ctx->c_c_index;
1342 u32 thread_index = ctx->c_thread_index;
1345 app_wrk = app_worker_get_if_valid (ctx->parent_app_wrk_id);
1348 quic_disconnect_transport (ctx);
1352 quic_session = session_alloc (thread_index);
1354 QUIC_DBG (2, "Allocated quic session 0x%lx", session_handle (quic_session));
1355 ctx->c_s_index = quic_session->session_index;
1356 quic_session->app_wrk_index = ctx->parent_app_wrk_id;
1357 quic_session->connection_index = ctx->c_c_index;
1358 quic_session->listener_handle = SESSION_INVALID_HANDLE;
1359 quic_session->session_type =
1360 session_type_from_proto_and_ip (TRANSPORT_PROTO_QUIC, ctx->udp_is_ip4);
1362 if (app_worker_init_connected (app_wrk, quic_session))
1364 QUIC_DBG (1, "failed to app_worker_init_connected");
1365 quic_proto_on_close (ctx_id, thread_index);
1366 return app_worker_connect_notify (app_wrk, NULL, ctx->client_opaque);
1369 quic_session->session_state = SESSION_STATE_CONNECTING;
1370 if ((rv = app_worker_connect_notify (app_wrk, quic_session,
1371 ctx->client_opaque)))
1373 QUIC_DBG (1, "failed to notify app %d", rv);
1374 quic_proto_on_close (ctx_id, thread_index);
1378 /* If the app opens a stream in its callback it may invalidate ctx */
1379 ctx = quic_ctx_get (ctx_id, thread_index);
1381 * app_worker_connect_notify() might have reallocated pool, reload
1382 * quic_session pointer
1384 quic_session = session_get (ctx->c_s_index, thread_index);
1385 quic_session->session_state = SESSION_STATE_LISTENING;
1391 quic_check_quic_session_connected (quic_ctx_t * ctx)
1393 /* Called when we need to trigger quic session connected
1394 * we may call this function on the server side / at
1397 /* Conn may be set to null if the connection is terminated */
1398 if (!ctx->conn || ctx->conn_state != QUIC_CONN_STATE_HANDSHAKE)
1400 if (!quicly_connection_is_ready (ctx->conn))
1402 ctx->conn_state = QUIC_CONN_STATE_READY;
1403 if (!quicly_is_client (ctx->conn))
1405 return quic_on_quic_session_connected (ctx);
1409 quic_receive_connection (void *arg)
1411 u32 new_ctx_id, thread_index = vlib_get_thread_index ();
1412 quic_ctx_t *temp_ctx, *new_ctx;
1413 clib_bihash_kv_16_8_t kv;
1414 quicly_conn_t *conn;
1415 session_t *udp_session;
1418 new_ctx_id = quic_ctx_alloc (thread_index);
1419 new_ctx = quic_ctx_get (new_ctx_id, thread_index);
1421 QUIC_DBG (2, "Received conn %u (now %u)", temp_ctx->c_thread_index,
1425 clib_memcpy (new_ctx, temp_ctx, sizeof (quic_ctx_t));
1426 clib_mem_free (temp_ctx);
1428 new_ctx->c_thread_index = thread_index;
1429 new_ctx->c_c_index = new_ctx_id;
1431 conn = new_ctx->conn;
1432 quic_store_conn_ctx (conn, new_ctx);
1433 quic_make_connection_key (&kv, quicly_get_master_id (conn));
1434 kv.value = ((u64) thread_index) << 32 | (u64) new_ctx_id;
1435 QUIC_DBG (2, "Registering conn with id %lu %lu", kv.key[0], kv.key[1]);
1436 clib_bihash_add_del_16_8 (&quic_main.connection_hash, &kv, 1 /* is_add */ );
1437 new_ctx->timer_handle = QUIC_TIMER_HANDLE_INVALID;
1438 quic_update_timer (new_ctx);
1440 /* Trigger write on this connection if necessary */
1441 udp_session = session_get_from_handle (new_ctx->udp_session_handle);
1442 udp_session->opaque = new_ctx_id;
1443 udp_session->flags &= ~SESSION_F_IS_MIGRATING;
1444 if (svm_fifo_max_dequeue (udp_session->tx_fifo))
1445 quic_set_udp_tx_evt (udp_session);
1449 quic_transfer_connection (u32 ctx_index, u32 dest_thread)
1451 tw_timer_wheel_1t_3w_1024sl_ov_t *tw;
1452 quic_ctx_t *ctx, *temp_ctx;
1453 u32 thread_index = vlib_get_thread_index ();
1455 QUIC_DBG (2, "Transferring conn %u to thread %u", ctx_index, dest_thread);
1457 temp_ctx = clib_mem_alloc (sizeof (quic_ctx_t));
1459 ctx = quic_ctx_get (ctx_index, thread_index);
1461 clib_memcpy (temp_ctx, ctx, sizeof (quic_ctx_t));
1463 /* Remove from timer wheel and thread-local pool */
1464 if (ctx->timer_handle != QUIC_TIMER_HANDLE_INVALID)
1466 tw = &quic_main.wrk_ctx[thread_index].timer_wheel;
1467 tw_timer_stop_1t_3w_1024sl_ov (tw, ctx->timer_handle);
1469 quic_ctx_free (ctx);
1471 /* Send connection to destination thread */
1472 session_send_rpc_evt_to_thread (dest_thread, quic_receive_connection,
1477 quic_udp_session_connected_callback (u32 quic_app_index, u32 ctx_index,
1478 session_t * udp_session, u8 is_fail)
1480 QUIC_DBG (2, "QSession is now connected (id %u)",
1481 udp_session->session_index);
1482 /* This should always be called before quic_connect returns since UDP always
1483 * connects instantly. */
1484 clib_bihash_kv_16_8_t kv;
1485 struct sockaddr_in6 sa6;
1486 struct sockaddr *sa = (struct sockaddr *) &sa6;
1488 transport_connection_t *tc;
1489 app_worker_t *app_wrk;
1490 quicly_conn_t *conn;
1492 u32 thread_index = vlib_get_thread_index ();
1494 quicly_context_t *quicly_ctx;
1497 ctx = quic_ctx_get (ctx_index, thread_index);
1501 app_wrk = app_worker_get_if_valid (ctx->parent_app_wrk_id);
1504 api_context = ctx->c_s_index;
1505 app_worker_connect_notify (app_wrk, 0, api_context);
1510 ctx->c_thread_index = thread_index;
1511 ctx->c_c_index = ctx_index;
1513 QUIC_DBG (2, "Quic connect returned %u. New ctx [%u]%x",
1514 is_fail, thread_index, (ctx) ? ctx_index : ~0);
1516 ctx->udp_session_handle = session_handle (udp_session);
1517 udp_session->opaque = ctx_index;
1519 /* Init QUIC lib connection
1520 * Generate required sockaddr & salen */
1521 tc = session_get_transport (udp_session);
1522 quic_build_sockaddr (sa, &salen, &tc->rmt_ip, tc->rmt_port, tc->is_ip4);
1524 quicly_ctx = quic_get_quicly_ctx_from_ctx (ctx);
1525 ret = quicly_connect (&ctx->conn, quicly_ctx, (char *) ctx->srv_hostname,
1526 sa, NULL, &quic_main.next_cid, ptls_iovec_init (NULL,
1528 &quic_main.hs_properties, NULL);
1529 ++quic_main.next_cid.master_id;
1530 /* Save context handle in quicly connection */
1531 quic_store_conn_ctx (ctx->conn, ctx);
1534 /* Register connection in connections map */
1536 quic_make_connection_key (&kv, quicly_get_master_id (conn));
1537 kv.value = ((u64) thread_index) << 32 | (u64) ctx_index;
1538 QUIC_DBG (2, "Registering conn with id %lu %lu", kv.key[0], kv.key[1]);
1539 clib_bihash_add_del_16_8 (&quic_main.connection_hash, &kv, 1 /* is_add */ );
1541 /* UDP stack quirk? preemptively transfer connection if that happens */
1542 if (udp_session->thread_index != thread_index)
1543 quic_transfer_connection (ctx_index, udp_session->thread_index);
1545 quic_send_packets (ctx);
1551 quic_udp_session_disconnect_callback (session_t * s)
1553 clib_warning ("UDP session disconnected???");
1557 quic_udp_session_reset_callback (session_t * s)
1559 clib_warning ("UDP session reset???");
1563 quic_udp_session_migrate_callback (session_t * s, session_handle_t new_sh)
1565 u32 new_thread = session_thread_from_handle (new_sh);
1568 QUIC_DBG (1, "Session %x migrated to %lx", s->session_index, new_sh);
1569 ASSERT (vlib_get_thread_index () == s->thread_index);
1570 ctx = quic_ctx_get (s->opaque, s->thread_index);
1571 ASSERT (ctx->udp_session_handle == session_handle (s));
1573 ctx->udp_session_handle = new_sh;
1575 s->opaque = 0xfeedface;
1577 quic_transfer_connection (ctx->c_c_index, new_thread);
1581 quic_udp_session_accepted_callback (session_t * udp_session)
1583 /* New UDP connection, try to accept it */
1586 quic_ctx_t *ctx, *lctx;
1587 session_t *udp_listen_session;
1588 u32 thread_index = vlib_get_thread_index ();
1590 udp_listen_session =
1591 listen_session_get_from_handle (udp_session->listener_handle);
1593 ctx_index = quic_ctx_alloc (thread_index);
1594 ctx = quic_ctx_get (ctx_index, thread_index);
1595 ctx->c_thread_index = udp_session->thread_index;
1596 ctx->c_c_index = ctx_index;
1597 ctx->c_s_index = QUIC_SESSION_INVALID;
1598 ctx->udp_session_handle = session_handle (udp_session);
1599 QUIC_DBG (2, "ACCEPTED UDP 0x%lx", ctx->udp_session_handle);
1600 ctx->listener_ctx_id = udp_listen_session->opaque;
1601 lctx = quic_ctx_get (udp_listen_session->opaque,
1602 udp_listen_session->thread_index);
1603 ctx->udp_is_ip4 = lctx->c_is_ip4;
1604 ctx->parent_app_id = lctx->parent_app_id;
1605 ctx->parent_app_wrk_id = lctx->parent_app_wrk_id;
1606 ctx->timer_handle = QUIC_TIMER_HANDLE_INVALID;
1607 ctx->conn_state = QUIC_CONN_STATE_OPENED;
1608 ctx->c_flags |= TRANSPORT_CONNECTION_F_NO_LOOKUP;
1610 /* Also store it in ctx for convenience
1611 * Waiting for crypto_ctx logic */
1612 ctx->quicly_ctx = lctx->quicly_ctx;
1614 udp_session->opaque = ctx_index;
1616 /* Put this ctx in the "opening" pool */
1617 pool_get (quic_main.wrk_ctx[ctx->c_thread_index].opening_ctx_pool,
1619 *pool_index = ctx_index;
1621 /* TODO timeout to delete these if they never connect */
1626 quic_add_segment_callback (u32 client_index, u64 seg_handle)
1628 /* No-op for builtin */
1633 quic_del_segment_callback (u32 client_index, u64 seg_handle)
1635 /* No-op for builtin */
1640 quic_custom_app_rx_callback (transport_connection_t * tc)
1643 session_t *stream_session = session_get (tc->s_index, tc->thread_index);
1644 QUIC_DBG (3, "Received app READ notification");
1645 quic_ack_rx_data (stream_session);
1646 svm_fifo_reset_has_deq_ntf (stream_session->rx_fifo);
1648 /* Need to send packets (acks may never be sent otherwise) */
1649 ctx = quic_ctx_get (stream_session->connection_index,
1650 stream_session->thread_index);
1651 quic_send_packets (ctx);
1656 quic_custom_tx_callback (void *s, u32 max_burst_size)
1658 session_t *stream_session = (session_t *) s;
1659 quicly_stream_t *stream;
1664 (stream_session->session_state >= SESSION_STATE_TRANSPORT_CLOSING))
1666 ctx = quic_ctx_get (stream_session->connection_index,
1667 stream_session->thread_index);
1668 if (PREDICT_FALSE (!quic_ctx_is_stream (ctx)))
1670 goto tx_end; /* Most probably a reschedule */
1673 QUIC_DBG (3, "Stream TX event");
1674 quic_ack_rx_data (stream_session);
1675 if (!svm_fifo_max_dequeue (stream_session->tx_fifo))
1678 stream = ctx->stream;
1679 if (!quicly_sendstate_is_open (&stream->sendstate))
1681 QUIC_DBG (1, "Warning: tried to send on closed stream");
1685 if ((rv = quicly_stream_sync_sendbuf (stream, 1)) != 0)
1689 quic_send_packets (ctx);
1695 * Returns 0 if a matching connection is found and is on the right thread.
1696 * Otherwise returns -1.
1697 * If a connection is found, even on the wrong thread, ctx_thread and ctx_index
1701 quic_find_packet_ctx (u32 * ctx_thread, u32 * ctx_index,
1702 struct sockaddr *sa, socklen_t salen,
1703 quicly_decoded_packet_t * packet,
1704 u32 caller_thread_index)
1707 quicly_conn_t *conn_;
1708 clib_bihash_kv_16_8_t kv;
1709 clib_bihash_16_8_t *h;
1711 h = &quic_main.connection_hash;
1712 quic_make_connection_key (&kv, &packet->cid.dest.plaintext);
1713 QUIC_DBG (3, "Searching conn with id %lu %lu", kv.key[0], kv.key[1]);
1715 if (clib_bihash_search_16_8 (h, &kv, &kv) == 0)
1717 u32 index = kv.value & UINT32_MAX;
1718 u32 thread_id = kv.value >> 32;
1719 /* Check if this connection belongs to this thread, otherwise
1720 * ask for it to be moved */
1721 if (thread_id != caller_thread_index)
1723 QUIC_DBG (2, "Connection is on wrong thread");
1724 /* Cannot make full check with quicly_is_destination... */
1726 *ctx_thread = thread_id;
1729 ctx_ = quic_ctx_get (index, vlib_get_thread_index ());
1731 if (conn_ && quicly_is_destination (conn_, NULL, sa, packet))
1733 QUIC_DBG (3, "Connection found");
1735 *ctx_thread = thread_id;
1739 QUIC_DBG (3, "connection not found");
1744 quic_accept_connection (u32 ctx_index, struct sockaddr *sa,
1745 socklen_t salen, quicly_decoded_packet_t packet)
1747 u32 thread_index = vlib_get_thread_index ();
1748 quicly_context_t *quicly_ctx;
1749 session_t *quic_session;
1750 clib_bihash_kv_16_8_t kv;
1751 app_worker_t *app_wrk;
1752 quicly_conn_t *conn;
1757 /* new connection, accept and create context if packet is valid
1758 * TODO: check if socket is actually listening? */
1759 ctx = quic_ctx_get (ctx_index, thread_index);
1760 quicly_ctx = quic_get_quicly_ctx_from_ctx (ctx);
1761 if ((rv = quicly_accept (&conn, quicly_ctx, NULL, sa,
1762 &packet, NULL, &quic_main.next_cid, NULL)))
1764 /* Invalid packet, pass */
1765 assert (conn == NULL);
1766 QUIC_DBG (1, "Accept failed with %d", rv);
1767 /* TODO: cleanup created quic ctx and UDP session */
1770 assert (conn != NULL);
1772 ++quic_main.next_cid.master_id;
1773 /* Save ctx handle in quicly connection */
1774 quic_store_conn_ctx (conn, ctx);
1776 ctx->conn_state = QUIC_CONN_STATE_HANDSHAKE;
1778 quic_session = session_alloc (ctx->c_thread_index);
1779 QUIC_DBG (2, "Allocated quic_session, 0x%lx ctx %u",
1780 session_handle (quic_session), ctx->c_c_index);
1781 quic_session->session_state = SESSION_STATE_LISTENING;
1782 ctx->c_s_index = quic_session->session_index;
1784 lctx = quic_ctx_get (ctx->listener_ctx_id, 0);
1786 quic_session->app_wrk_index = lctx->parent_app_wrk_id;
1787 quic_session->connection_index = ctx->c_c_index;
1788 quic_session->session_type =
1789 session_type_from_proto_and_ip (TRANSPORT_PROTO_QUIC, ctx->udp_is_ip4);
1790 quic_session->listener_handle = lctx->c_s_index;
1792 /* TODO: don't alloc fifos when we don't transfer data on this session
1793 * but we still need fifos for the events? */
1794 if ((rv = app_worker_init_accepted (quic_session)))
1796 QUIC_DBG (1, "failed to allocate fifos");
1797 session_free (quic_session);
1800 app_wrk = app_worker_get (quic_session->app_wrk_index);
1801 if ((rv = app_worker_accept_notify (app_wrk, quic_session)))
1803 QUIC_DBG (1, "failed to notify accept worker app");
1807 /* Register connection in connections map */
1808 quic_make_connection_key (&kv, quicly_get_master_id (conn));
1809 kv.value = ((u64) thread_index) << 32 | (u64) ctx_index;
1810 clib_bihash_add_del_16_8 (&quic_main.connection_hash, &kv, 1 /* is_add */ );
1811 QUIC_DBG (2, "Registering conn with id %lu %lu", kv.key[0], kv.key[1]);
1813 return quic_send_packets (ctx);
1817 quic_reset_connection (u64 udp_session_handle,
1818 struct sockaddr *sa, socklen_t salen,
1819 quicly_decoded_packet_t packet)
1821 /* short header packet; potentially a dead connection. No need to check the
1822 * length of the incoming packet, because loop is prevented by authenticating
1823 * the CID (by checking node_id and thread_id). If the peer is also sending a
1824 * reset, then the next CID is highly likely to contain a non-authenticating
1826 QUIC_DBG (2, "Sending stateless reset");
1828 quicly_datagram_t *dgram;
1829 session_t *udp_session;
1830 quicly_context_t *quicly_ctx;
1831 if (packet.cid.dest.plaintext.node_id != 0
1832 || packet.cid.dest.plaintext.thread_id != 0)
1834 quicly_ctx = quic_get_quicly_ctx_from_udp (udp_session_handle);
1835 dgram = quicly_send_stateless_reset (quicly_ctx, sa, NULL,
1836 &packet.cid.dest.plaintext);
1839 udp_session = session_get_from_handle (udp_session_handle);
1840 rv = quic_send_datagram (udp_session, dgram);
1841 quic_set_udp_tx_evt (udp_session);
1846 quic_process_one_rx_packet (u64 udp_session_handle, svm_fifo_t * f,
1847 u32 * fifo_offset, u32 * max_packet, u32 packet_n,
1848 quic_rx_packet_ctx_t * packet_ctx)
1850 session_dgram_hdr_t ph;
1851 quic_ctx_t *ctx = NULL;
1853 struct sockaddr_in6 sa6;
1854 struct sockaddr *sa = (struct sockaddr *) &sa6;
1858 packet_ctx->thread_index = UINT32_MAX;
1859 packet_ctx->ctx_index = UINT32_MAX;
1860 u32 thread_index = vlib_get_thread_index ();
1861 u32 *opening_ctx_pool, *ctx_index_ptr;
1862 u32 cur_deq = svm_fifo_max_dequeue (f) - *fifo_offset;
1863 quicly_context_t *quicly_ctx;
1867 *max_packet = packet_n + 1;
1871 if (cur_deq < SESSION_CONN_HDR_LEN)
1873 QUIC_DBG (1, "Not enough data for even a header in RX");
1876 ret = svm_fifo_peek (f, *fifo_offset, SESSION_CONN_HDR_LEN, (u8 *) & ph);
1877 if (ret != SESSION_CONN_HDR_LEN)
1879 QUIC_DBG (1, "Not enough data for header in RX");
1882 ASSERT (ph.data_offset == 0);
1883 full_len = ph.data_length + SESSION_CONN_HDR_LEN;
1884 if (full_len > cur_deq)
1886 QUIC_DBG (1, "Not enough data in fifo RX");
1890 /* Quicly can read len bytes from the fifo at offset:
1891 * ph.data_offset + SESSION_CONN_HDR_LEN */
1892 ret = svm_fifo_peek (f, SESSION_CONN_HDR_LEN + *fifo_offset,
1893 ph.data_length, packet_ctx->data);
1894 if (ret != ph.data_length)
1896 QUIC_DBG (1, "Not enough data peeked in RX");
1900 quic_increment_counter (QUIC_ERROR_RX_PACKETS, 1);
1902 quic_build_sockaddr (sa, &salen, &ph.rmt_ip, ph.rmt_port, ph.is_ip4);
1903 quicly_ctx = quic_get_quicly_ctx_from_udp (udp_session_handle);
1904 plen = quicly_decode_packet (quicly_ctx, &packet_ctx->packet,
1905 packet_ctx->data, ph.data_length);
1907 if (plen == SIZE_MAX)
1909 *fifo_offset += SESSION_CONN_HDR_LEN + ph.data_length;
1913 err = quic_find_packet_ctx (&packet_ctx->thread_index,
1914 &packet_ctx->ctx_index, sa, salen,
1915 &packet_ctx->packet, thread_index);
1918 ctx = quic_ctx_get (packet_ctx->ctx_index, thread_index);
1919 rv = quicly_receive (ctx->conn, NULL, sa, &packet_ctx->packet);
1921 QUIC_DBG (1, "quicly_receive return error %d", rv);
1923 else if (packet_ctx->ctx_index != UINT32_MAX)
1925 /* Connection found but on wrong thread, ask move */
1926 *max_packet = packet_n + 1;
1929 else if ((packet_ctx->packet.octets.base[0] & QUICLY_PACKET_TYPE_BITMASK) ==
1930 QUICLY_PACKET_TYPE_INITIAL)
1932 /* Try to find matching "opening" ctx */
1933 opening_ctx_pool = quic_main.wrk_ctx[thread_index].opening_ctx_pool;
1936 pool_foreach (ctx_index_ptr, opening_ctx_pool,
1938 ctx = quic_ctx_get (*ctx_index_ptr, thread_index);
1939 if (ctx->udp_session_handle == udp_session_handle)
1941 /* Right ctx found, create conn & remove from pool */
1942 quic_accept_connection (*ctx_index_ptr, sa, salen, packet_ctx->packet);
1943 *max_packet = packet_n + 1;
1944 packet_ctx->thread_index = thread_index;
1945 packet_ctx->ctx_index = *ctx_index_ptr;
1946 pool_put (opening_ctx_pool, ctx_index_ptr);
1954 quic_reset_connection (udp_session_handle, sa, salen,
1955 packet_ctx->packet);
1959 *fifo_offset += SESSION_CONN_HDR_LEN + ph.data_length;
1964 quic_udp_session_rx_callback (session_t * udp_session)
1966 /* Read data from UDP rx_fifo and pass it to the quicly conn. */
1967 quic_ctx_t *ctx = NULL;
1970 u64 udp_session_handle = session_handle (udp_session);
1972 u32 thread_index = vlib_get_thread_index ();
1973 quic_rx_packet_ctx_t packets_ctx[16];
1974 u32 i, fifo_offset, max_packets;
1976 if (udp_session->flags & SESSION_F_IS_MIGRATING)
1978 QUIC_DBG (3, "RX on migrating udp session");
1984 udp_session = session_get_from_handle (udp_session_handle); /* session alloc might have happened */
1985 f = udp_session->rx_fifo;
1986 max_deq = svm_fifo_max_dequeue (f);
1992 for (i = 0; i < max_packets; i++)
1993 quic_process_one_rx_packet (udp_session_handle, f, &fifo_offset,
1994 &max_packets, i, &packets_ctx[i]);
1996 for (i = 0; i < max_packets; i++)
1998 if (packets_ctx[i].thread_index != thread_index)
2000 ctx = quic_ctx_get (packets_ctx[i].ctx_index,
2001 packets_ctx[i].thread_index);
2002 quic_check_quic_session_connected (ctx);
2003 ctx = quic_ctx_get (packets_ctx[i].ctx_index,
2004 packets_ctx[i].thread_index);
2005 quic_send_packets (ctx);
2007 svm_fifo_dequeue_drop (f, fifo_offset);
2013 quic_common_get_transport_endpoint (quic_ctx_t * ctx,
2014 transport_endpoint_t * tep, u8 is_lcl)
2016 session_t *udp_session;
2017 if (!quic_ctx_is_stream (ctx))
2019 udp_session = session_get_from_handle (ctx->udp_session_handle);
2020 session_get_endpoint (udp_session, tep, is_lcl);
2025 quic_get_transport_listener_endpoint (u32 listener_index,
2026 transport_endpoint_t * tep, u8 is_lcl)
2029 app_listener_t *app_listener;
2030 session_t *udp_listen_session;
2031 ctx = quic_ctx_get (listener_index, vlib_get_thread_index ());
2032 if (quic_ctx_is_listener (ctx))
2034 app_listener = app_listener_get_w_handle (ctx->udp_session_handle);
2035 udp_listen_session = app_listener_get_session (app_listener);
2036 return session_get_endpoint (udp_listen_session, tep, is_lcl);
2038 quic_common_get_transport_endpoint (ctx, tep, is_lcl);
2042 quic_get_transport_endpoint (u32 ctx_index, u32 thread_index,
2043 transport_endpoint_t * tep, u8 is_lcl)
2046 ctx = quic_ctx_get (ctx_index, thread_index);
2047 quic_common_get_transport_endpoint (ctx, tep, is_lcl);
2051 static session_cb_vft_t quic_app_cb_vft = {
2052 .session_accept_callback = quic_udp_session_accepted_callback,
2053 .session_disconnect_callback = quic_udp_session_disconnect_callback,
2054 .session_connected_callback = quic_udp_session_connected_callback,
2055 .session_reset_callback = quic_udp_session_reset_callback,
2056 .session_migrate_callback = quic_udp_session_migrate_callback,
2057 .add_segment_callback = quic_add_segment_callback,
2058 .del_segment_callback = quic_del_segment_callback,
2059 .builtin_app_rx_callback = quic_udp_session_rx_callback,
2062 static const transport_proto_vft_t quic_proto = {
2063 .connect = quic_connect,
2064 .close = quic_proto_on_close,
2065 .start_listen = quic_start_listen,
2066 .stop_listen = quic_stop_listen,
2067 .get_connection = quic_connection_get,
2068 .get_listener = quic_listener_get,
2069 .update_time = quic_update_time,
2070 .app_rx_evt = quic_custom_app_rx_callback,
2071 .custom_tx = quic_custom_tx_callback,
2072 .format_connection = format_quic_connection,
2073 .format_half_open = format_quic_half_open,
2074 .format_listener = format_quic_listener,
2075 .get_transport_endpoint = quic_get_transport_endpoint,
2076 .get_transport_listener_endpoint = quic_get_transport_listener_endpoint,
2077 .transport_options = {
2078 .tx_type = TRANSPORT_TX_INTERNAL,
2079 .service_type = TRANSPORT_SERVICE_APP,
2085 quic_register_cipher_suite (crypto_engine_type_t type,
2086 ptls_cipher_suite_t ** ciphers)
2088 quic_main_t *qm = &quic_main;
2089 vec_validate (qm->quic_ciphers, type);
2090 qm->quic_ciphers[type] = ciphers;
2094 quic_update_fifo_size ()
2096 quic_main_t *qm = &quic_main;
2097 segment_manager_props_t *seg_mgr_props =
2098 application_get_segment_manager_properties (qm->app_index);
2103 ("error while getting segment_manager_props_t, can't update fifo-size");
2107 seg_mgr_props->tx_fifo_size = qm->udp_fifo_size;
2108 seg_mgr_props->rx_fifo_size = qm->udp_fifo_size;
2111 static clib_error_t *
2112 quic_init (vlib_main_t * vm)
2114 u32 segment_size = 256 << 20;
2115 vlib_thread_main_t *vtm = vlib_get_thread_main ();
2116 tw_timer_wheel_1t_3w_1024sl_ov_t *tw;
2117 vnet_app_attach_args_t _a, *a = &_a;
2118 u64 options[APP_OPTIONS_N_OPTIONS];
2119 quic_main_t *qm = &quic_main;
2122 num_threads = 1 /* main thread */ + vtm->n_threads;
2124 clib_memset (a, 0, sizeof (*a));
2125 clib_memset (options, 0, sizeof (options));
2127 a->session_cb_vft = &quic_app_cb_vft;
2128 a->api_client_index = APP_INVALID_INDEX;
2129 a->options = options;
2130 a->name = format (0, "quic");
2131 a->options[APP_OPTIONS_SEGMENT_SIZE] = segment_size;
2132 a->options[APP_OPTIONS_ADD_SEGMENT_SIZE] = segment_size;
2133 a->options[APP_OPTIONS_RX_FIFO_SIZE] = qm->udp_fifo_size;
2134 a->options[APP_OPTIONS_TX_FIFO_SIZE] = qm->udp_fifo_size;
2135 a->options[APP_OPTIONS_PREALLOC_FIFO_PAIRS] = qm->udp_fifo_prealloc;
2136 a->options[APP_OPTIONS_FLAGS] = APP_OPTIONS_FLAGS_IS_BUILTIN;
2137 a->options[APP_OPTIONS_FLAGS] |= APP_OPTIONS_FLAGS_USE_GLOBAL_SCOPE;
2138 a->options[APP_OPTIONS_FLAGS] |= APP_OPTIONS_FLAGS_IS_TRANSPORT_APP;
2140 if (vnet_application_attach (a))
2142 clib_warning ("failed to attach quic app");
2143 return clib_error_return (0, "failed to attach quic app");
2146 vec_validate (qm->ctx_pool, num_threads - 1);
2147 vec_validate (qm->wrk_ctx, num_threads - 1);
2148 /* Timer wheels, one per thread. */
2149 for (i = 0; i < num_threads; i++)
2151 tw = &qm->wrk_ctx[i].timer_wheel;
2152 tw_timer_wheel_init_1t_3w_1024sl_ov (tw, quic_expired_timers_dispatch,
2153 1e-3 /* timer period 1ms */ , ~0);
2154 tw->last_run_time = vlib_time_now (vlib_get_main ());
2157 clib_bihash_init_16_8 (&qm->connection_hash, "quic connections", 1024,
2161 qm->app_index = a->app_index;
2162 qm->tstamp_ticks_per_clock = vm->clib_time.seconds_per_clock
2163 / QUIC_TSTAMP_RESOLUTION;
2164 qm->session_cache.super.cb = quic_encrypt_ticket_cb;
2166 transport_register_protocol (TRANSPORT_PROTO_QUIC, &quic_proto,
2167 FIB_PROTOCOL_IP4, ~0);
2168 transport_register_protocol (TRANSPORT_PROTO_QUIC, &quic_proto,
2169 FIB_PROTOCOL_IP6, ~0);
2171 quic_register_cipher_suite (CRYPTO_ENGINE_VPP, quic_crypto_cipher_suites);
2172 quic_register_cipher_suite (CRYPTO_ENGINE_PICOTLS,
2173 ptls_openssl_cipher_suites);
2174 qm->default_cipher = CRYPTO_ENGINE_PICOTLS;
2179 VLIB_INIT_FUNCTION (quic_init);
2181 static clib_error_t *
2182 quic_plugin_crypto_command_fn (vlib_main_t * vm,
2183 unformat_input_t * input,
2184 vlib_cli_command_t * cmd)
2186 quic_main_t *qm = &quic_main;
2187 if (unformat_check_input (input) == UNFORMAT_END_OF_INPUT)
2188 return clib_error_return (0, "unknown input '%U'",
2189 format_unformat_error, input);
2190 if (unformat (input, "vpp"))
2191 qm->default_cipher = CRYPTO_ENGINE_VPP;
2192 else if (unformat (input, "picotls"))
2193 qm->default_cipher = CRYPTO_ENGINE_PICOTLS;
2195 return clib_error_return (0, "unknown input '%U'",
2196 format_unformat_error, input);
2200 u64 quic_fifosize = 0;
2201 static clib_error_t *
2202 quic_plugin_set_fifo_size_command_fn (vlib_main_t * vm,
2203 unformat_input_t * input,
2204 vlib_cli_command_t * cmd)
2206 quic_main_t *qm = &quic_main;
2207 unformat_input_t _line_input, *line_input = &_line_input;
2210 if (!unformat_user (input, unformat_line_input, line_input))
2213 while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
2215 if (unformat (line_input, "%U", unformat_memory_size, &tmp))
2217 if (tmp >= 0x100000000ULL)
2219 return clib_error_return
2220 (0, "fifo-size %llu (0x%llx) too large", tmp, tmp);
2222 qm->udp_fifo_size = tmp;
2223 quic_update_fifo_size ();
2226 return clib_error_return (0, "unknown input '%U'",
2227 format_unformat_error, line_input);
2234 quic_format_ctx_stat (u8 * s, va_list * args)
2236 quic_ctx_t *ctx = va_arg (*args, quic_ctx_t *);
2237 quicly_stats_t quicly_stats;
2239 quicly_get_stats (ctx->conn, &quicly_stats);
2241 s = format (s, "\n\rQUIC conn stats \n\r");
2244 format (s, "RTT: min:%d, smoothed:%d, variance:%d, latest:%d \n\r",
2245 quicly_stats.rtt.minimum, quicly_stats.rtt.smoothed,
2246 quicly_stats.rtt.variance, quicly_stats.rtt.latest);
2247 s = format (s, "Packet loss:%d \n\r", quicly_stats.num_packets.lost);
2252 static clib_error_t *
2253 quic_plugin_showstats_command_fn (vlib_main_t * vm,
2254 unformat_input_t * input,
2255 vlib_cli_command_t * cmd)
2257 quic_main_t *qm = &quic_main;
2258 quic_ctx_t *ctx = NULL;
2259 u32 num_workers = vlib_num_workers ();
2261 for (int i = 0; i < num_workers + 1; i++)
2264 pool_foreach (ctx, qm->ctx_pool[i],
2266 if(!(ctx->flags & QUIC_F_IS_LISTENER) && !(ctx->flags & QUIC_F_IS_STREAM))
2267 vlib_cli_output (vm, "%U", quic_format_ctx_stat, ctx);
2275 VLIB_CLI_COMMAND (quic_plugin_crypto_command, static) =
2277 .path = "quic set crypto api",
2278 .short_help = "quic set crypto api [picotls, vpp]",
2279 .function = quic_plugin_crypto_command_fn,
2281 VLIB_CLI_COMMAND(quic_plugin_set_fifo_size_command, static)=
2283 .path = "quic set fifo-size",
2284 .short_help = "quic set fifo-size N[K|M|G] (default 64K)",
2285 .function = quic_plugin_set_fifo_size_command_fn,
2287 VLIB_CLI_COMMAND(quic_plugin_stats_command, static)=
2289 .path = "show quic stats",
2290 .short_help = "show quic stats",
2291 .function = quic_plugin_showstats_command_fn,
2293 VLIB_PLUGIN_REGISTER () =
2295 .version = VPP_BUILD_VER,
2296 .description = "Quic transport protocol",
2297 .default_disabled = 1,
2301 static clib_error_t *
2302 quic_config_fn (vlib_main_t * vm, unformat_input_t * input)
2304 quic_main_t *qm = &quic_main;
2307 qm->udp_fifo_size = QUIC_DEFAULT_FIFO_SIZE;
2308 qm->udp_fifo_prealloc = 0;
2309 while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
2311 if (unformat (input, "fifo-size %U", unformat_memory_size, &tmp))
2313 if (tmp >= 0x100000000ULL)
2315 return clib_error_return
2316 (0, "fifo-size %llu (0x%llx) too large", tmp, tmp);
2318 qm->udp_fifo_size = tmp;
2322 (input, "fifo-prealloc %u", &quic_main.udp_fifo_prealloc))
2325 return clib_error_return (0, "unknown input '%U'",
2326 format_unformat_error, input);
2332 VLIB_EARLY_CONFIG_FUNCTION (quic_config_fn, "quic");
2335 quic_node_fn (vlib_main_t * vm, vlib_node_runtime_t * node,
2336 vlib_frame_t * frame)
2342 VLIB_REGISTER_NODE (quic_input_node) =
2344 .function = quic_node_fn,
2345 .name = "quic-input",
2346 .vector_size = sizeof (u32),
2347 .type = VLIB_NODE_TYPE_INTERNAL,
2348 .n_errors = ARRAY_LEN (quic_error_strings),
2349 .error_strings = quic_error_strings,
2354 * fd.io coding-style-patch-verification: ON
2357 * eval: (c-set-style "gnu")