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 session_transport_delete_notify (&ctx->connection);
280 quic_connection_delete (ctx);
282 case QUIC_CONN_STATE_PASSIVE_CLOSING_QUIC_CLOSED:
285 case QUIC_CONN_STATE_ACTIVE_CLOSING:
286 session_transport_delete_notify (&ctx->connection);
287 quic_connection_delete (ctx);
290 QUIC_DBG (0, "BUG %d", ctx->conn_state);
296 quic_send_datagram (session_t * udp_session, quicly_datagram_t * packet)
299 session_dgram_hdr_t hdr;
302 transport_connection_t *tc;
304 len = packet->data.len;
305 f = udp_session->tx_fifo;
306 tc = session_get_transport (udp_session);
307 max_enqueue = svm_fifo_max_enqueue (f);
308 if (max_enqueue < SESSION_CONN_HDR_LEN + len)
310 QUIC_DBG (1, "Too much data to send, max_enqueue %u, len %u",
311 max_enqueue, len + SESSION_CONN_HDR_LEN);
312 return QUIC_ERROR_FULL_FIFO;
315 /* Build packet header for fifo */
316 hdr.data_length = len;
318 hdr.is_ip4 = tc->is_ip4;
319 clib_memcpy (&hdr.lcl_ip, &tc->lcl_ip, sizeof (ip46_address_t));
320 hdr.lcl_port = tc->lcl_port;
322 /* Read dest address from quicly-provided sockaddr */
325 ASSERT (packet->dest.sa.sa_family == AF_INET);
326 struct sockaddr_in *sa4 = (struct sockaddr_in *) &packet->dest.sa;
327 hdr.rmt_port = sa4->sin_port;
328 hdr.rmt_ip.ip4.as_u32 = sa4->sin_addr.s_addr;
332 ASSERT (packet->dest.sa.sa_family == AF_INET6);
333 struct sockaddr_in6 *sa6 = (struct sockaddr_in6 *) &packet->dest.sa;
334 hdr.rmt_port = sa6->sin6_port;
335 clib_memcpy (&hdr.rmt_ip.ip6, &sa6->sin6_addr, 16);
338 ret = svm_fifo_enqueue (f, sizeof (hdr), (u8 *) & hdr);
339 if (ret != sizeof (hdr))
341 QUIC_DBG (1, "Not enough space to enqueue header");
342 return QUIC_ERROR_FULL_FIFO;
344 ret = svm_fifo_enqueue (f, len, packet->data.base);
347 QUIC_DBG (1, "Not enough space to enqueue payload");
348 return QUIC_ERROR_FULL_FIFO;
351 quic_increment_counter (QUIC_ERROR_TX_PACKETS, 1);
357 quic_send_packets (quic_ctx_t * ctx)
359 quicly_datagram_t *packets[QUIC_SEND_PACKET_VEC_SIZE];
360 session_t *udp_session;
362 size_t num_packets, i, max_packets;
363 quicly_packet_allocator_t *pa;
364 quicly_context_t *quicly_context;
367 /* We have sctx, get qctx */
368 if (quic_ctx_is_stream (ctx))
369 ctx = quic_ctx_get (ctx->quic_connection_ctx_id, ctx->c_thread_index);
371 ASSERT (!quic_ctx_is_stream (ctx));
373 udp_session = session_get_from_handle_if_valid (ctx->udp_session_handle);
382 /* TODO : quicly can assert it can send min_packets up to 2 */
383 if (quic_sendable_packet_count (udp_session) < 2)
386 quicly_context = quic_get_quicly_ctx_from_ctx (ctx);
389 clib_warning ("Tried to send packets on non existing app worker %u",
390 ctx->parent_app_wrk_id);
391 quic_connection_delete (ctx);
394 pa = quicly_context->packet_allocator;
397 max_packets = quic_sendable_packet_count (udp_session);
400 num_packets = max_packets;
401 if ((err = quicly_send (conn, packets, &num_packets)))
404 for (i = 0; i != num_packets; ++i)
406 if ((err = quic_send_datagram (udp_session, packets[i])))
409 pa->free_packet (pa, packets[i]);
412 while (num_packets > 0 && num_packets == max_packets);
415 quic_set_udp_tx_evt (udp_session);
417 QUIC_DBG (3, "%u[TX] %u[RX]", svm_fifo_max_dequeue (udp_session->tx_fifo),
418 svm_fifo_max_dequeue (udp_session->rx_fifo));
419 quic_update_timer (ctx);
423 if (err && err != QUICLY_ERROR_PACKET_IGNORED
424 && err != QUICLY_ERROR_FREE_CONNECTION)
425 clib_warning ("Quic error '%U'.", quic_format_err, err);
426 quic_connection_closed (ctx);
430 /* Quicly callbacks */
433 quic_on_stream_destroy (quicly_stream_t * stream, int err)
435 quic_stream_data_t *stream_data = (quic_stream_data_t *) stream->data;
436 quic_ctx_t *sctx = quic_ctx_get (stream_data->ctx_id,
437 stream_data->thread_index);
438 session_t *stream_session = session_get (sctx->c_s_index,
439 sctx->c_thread_index);
440 QUIC_DBG (2, "DESTROYED_STREAM: session 0x%lx (%U)",
441 session_handle (stream_session), quic_format_err, err);
443 stream_session->session_state = SESSION_STATE_CLOSED;
444 session_transport_delete_notify (&sctx->connection);
446 quic_ctx_free (sctx);
447 clib_mem_free (stream->data);
451 quic_on_stop_sending (quicly_stream_t * stream, int err)
454 quic_stream_data_t *stream_data = (quic_stream_data_t *) stream->data;
455 quic_ctx_t *sctx = quic_ctx_get (stream_data->ctx_id,
456 stream_data->thread_index);
457 session_t *stream_session = session_get (sctx->c_s_index,
458 sctx->c_thread_index);
459 clib_warning ("(NOT IMPLEMENTD) STOP_SENDING: session 0x%lx (%U)",
460 session_handle (stream_session), quic_format_err, err);
462 /* TODO : handle STOP_SENDING */
467 quic_on_receive_reset (quicly_stream_t * stream, int err)
469 quic_stream_data_t *stream_data = (quic_stream_data_t *) stream->data;
470 quic_ctx_t *sctx = quic_ctx_get (stream_data->ctx_id,
471 stream_data->thread_index);
473 session_t *stream_session = session_get (sctx->c_s_index,
474 sctx->c_thread_index);
475 clib_warning ("RESET_STREAM: session 0x%lx (%U)",
476 session_handle (stream_session), quic_format_err, err);
478 session_transport_closing_notify (&sctx->connection);
483 quic_on_receive (quicly_stream_t * stream, size_t off, const void *src,
486 QUIC_DBG (3, "received data: %lu bytes, offset %lu", len, off);
489 session_t *stream_session;
490 app_worker_t *app_wrk;
492 quic_stream_data_t *stream_data;
495 stream_data = (quic_stream_data_t *) stream->data;
496 sctx = quic_ctx_get (stream_data->ctx_id, stream_data->thread_index);
497 stream_session = session_get (sctx->c_s_index, stream_data->thread_index);
498 f = stream_session->rx_fifo;
500 max_enq = svm_fifo_max_enqueue_prod (f);
501 QUIC_DBG (3, "Enqueuing %u at off %u in %u space", len, off, max_enq);
502 if (off - stream_data->app_rx_data_len + len > max_enq)
504 QUIC_DBG (1, "Error RX fifo is full");
507 if (off == stream_data->app_rx_data_len)
509 /* Streams live on the same thread so (f, stream_data) should stay consistent */
510 rlen = svm_fifo_enqueue (f, len, (u8 *) src);
511 stream_data->app_rx_data_len += rlen;
512 if (PREDICT_FALSE (rlen != len))
514 clib_warning ("ERROR: Could not enqueue all data (rlen %u, len %u)",
516 ASSERT (rlen == len);
518 app_wrk = app_worker_get_if_valid (stream_session->app_wrk_index);
519 if (PREDICT_TRUE (app_wrk != 0))
520 app_worker_lock_and_send_event (app_wrk, stream_session,
522 quic_ack_rx_data (stream_session);
526 rlen = svm_fifo_enqueue_with_offset (f,
527 off - stream_data->app_rx_data_len,
535 quic_fifo_egress_shift (quicly_stream_t * stream, size_t delta)
537 session_t *stream_session;
541 stream_session = get_stream_session_from_stream (stream);
542 f = stream_session->tx_fifo;
544 rv = svm_fifo_dequeue_drop (f, delta);
545 ASSERT (rv == delta);
546 quicly_stream_sync_sendbuf (stream, 0);
550 quic_fifo_egress_emit (quicly_stream_t * stream, size_t off, void *dst,
551 size_t * len, int *wrote_all)
553 session_t *stream_session;
555 u32 deq_max, first_deq, max_rd_chunk, rem_offset;
557 stream_session = get_stream_session_from_stream (stream);
558 f = stream_session->tx_fifo;
560 QUIC_DBG (3, "Emitting %u, offset %u", *len, off);
562 deq_max = svm_fifo_max_dequeue_cons (f);
563 ASSERT (off <= deq_max);
564 if (off + *len < deq_max)
571 *len = deq_max - off;
572 QUIC_DBG (3, "Wrote ALL, %u", *len);
575 /* TODO, use something like : return svm_fifo_peek (f, off, *len, dst); */
576 max_rd_chunk = svm_fifo_max_read_chunk (f);
579 if (off < max_rd_chunk)
581 first_deq = clib_min (*len, max_rd_chunk - off);
582 clib_memcpy_fast (dst, svm_fifo_head (f) + off, first_deq);
585 if (max_rd_chunk < off + *len)
587 rem_offset = max_rd_chunk < off ? off - max_rd_chunk : 0;
588 clib_memcpy_fast (dst + first_deq, f->head_chunk->data + rem_offset,
595 static const quicly_stream_callbacks_t quic_stream_callbacks = {
596 .on_destroy = quic_on_stream_destroy,
597 .on_send_shift = quic_fifo_egress_shift,
598 .on_send_emit = quic_fifo_egress_emit,
599 .on_send_stop = quic_on_stop_sending,
600 .on_receive = quic_on_receive,
601 .on_receive_reset = quic_on_receive_reset
605 quic_on_stream_open (quicly_stream_open_t * self, quicly_stream_t * stream)
607 session_t *stream_session, *quic_session;
608 quic_stream_data_t *stream_data;
609 app_worker_t *app_wrk;
610 quic_ctx_t *qctx, *sctx;
614 QUIC_DBG (2, "on_stream_open called");
615 stream->data = clib_mem_alloc (sizeof (quic_stream_data_t));
616 stream->callbacks = &quic_stream_callbacks;
617 /* Notify accept on parent qsession, but only if this is not a locally
618 * initiated stream */
619 if (quicly_stream_is_self_initiated (stream))
622 sctx_id = quic_ctx_alloc (vlib_get_thread_index ());
623 qctx = quic_get_conn_ctx (stream->conn);
625 /* Might need to signal that the connection is ready if the first thing the
626 * server does is open a stream */
627 quic_check_quic_session_connected (qctx);
628 /* ctx might be invalidated */
629 qctx = quic_get_conn_ctx (stream->conn);
631 stream_session = session_alloc (qctx->c_thread_index);
632 QUIC_DBG (2, "ACCEPTED stream_session 0x%lx ctx %u",
633 session_handle (stream_session), sctx_id);
634 sctx = quic_ctx_get (sctx_id, qctx->c_thread_index);
635 sctx->parent_app_wrk_id = qctx->parent_app_wrk_id;
636 sctx->parent_app_id = qctx->parent_app_id;
637 sctx->quic_connection_ctx_id = qctx->c_c_index;
638 sctx->c_c_index = sctx_id;
639 sctx->c_s_index = stream_session->session_index;
640 sctx->stream = stream;
641 sctx->c_flags |= TRANSPORT_CONNECTION_F_NO_LOOKUP;
642 sctx->flags |= QUIC_F_IS_STREAM;
644 stream_data = (quic_stream_data_t *) stream->data;
645 stream_data->ctx_id = sctx_id;
646 stream_data->thread_index = sctx->c_thread_index;
647 stream_data->app_rx_data_len = 0;
649 sctx->c_s_index = stream_session->session_index;
650 stream_session->session_state = SESSION_STATE_CREATED;
651 stream_session->app_wrk_index = sctx->parent_app_wrk_id;
652 stream_session->connection_index = sctx->c_c_index;
653 stream_session->session_type =
654 session_type_from_proto_and_ip (TRANSPORT_PROTO_QUIC, qctx->udp_is_ip4);
655 quic_session = session_get (qctx->c_s_index, qctx->c_thread_index);
656 stream_session->listener_handle = listen_session_get_handle (quic_session);
658 app_wrk = app_worker_get (stream_session->app_wrk_index);
659 if ((rv = app_worker_init_connected (app_wrk, stream_session)))
661 QUIC_DBG (1, "failed to allocate fifos");
662 session_free (stream_session);
663 quicly_reset_stream (stream, QUIC_APP_ALLOCATION_ERROR);
664 return 0; /* Frame is still valid */
666 svm_fifo_add_want_deq_ntf (stream_session->rx_fifo,
667 SVM_FIFO_WANT_DEQ_NOTIF_IF_FULL |
668 SVM_FIFO_WANT_DEQ_NOTIF_IF_EMPTY);
670 if ((rv = app_worker_accept_notify (app_wrk, stream_session)))
672 QUIC_DBG (1, "failed to notify accept worker app");
673 session_free_w_fifos (stream_session);
674 quicly_reset_stream (stream, QUIC_APP_ACCEPT_NOTIFY_ERROR);
675 return 0; /* Frame is still valid */
682 quic_on_closed_by_peer (quicly_closed_by_peer_t * self, quicly_conn_t * conn,
683 int code, uint64_t frame_type,
684 const char *reason, size_t reason_len)
686 quic_ctx_t *ctx = quic_get_conn_ctx (conn);
688 session_t *quic_session = session_get (ctx->c_s_index, ctx->c_thread_index);
689 clib_warning ("Session 0x%lx closed by peer (%U) %.*s ",
690 session_handle (quic_session), quic_format_err, code,
693 ctx->conn_state = QUIC_CONN_STATE_PASSIVE_CLOSING;
694 session_transport_closing_notify (&ctx->connection);
697 static quicly_stream_open_t on_stream_open = { quic_on_stream_open };
698 static quicly_closed_by_peer_t on_closed_by_peer = { quic_on_closed_by_peer };
703 quic_get_thread_time (u8 thread_index)
705 return quic_main.wrk_ctx[thread_index].time_now;
709 quic_get_time (quicly_now_t * self)
711 u8 thread_index = vlib_get_thread_index ();
712 return quic_get_thread_time (thread_index);
715 static quicly_now_t quicly_vpp_now_cb = { quic_get_time };
718 quic_set_time_now (u32 thread_index)
720 vlib_main_t *vlib_main = vlib_get_main ();
721 f64 time = vlib_time_now (vlib_main);
722 quic_main.wrk_ctx[thread_index].time_now = (int64_t) (time * 1000.f);
723 return quic_main.wrk_ctx[thread_index].time_now;
726 /* Transport proto callback */
728 quic_update_time (f64 now, u8 thread_index)
730 tw_timer_wheel_1t_3w_1024sl_ov_t *tw;
732 tw = &quic_main.wrk_ctx[thread_index].timer_wheel;
733 quic_set_time_now (thread_index);
734 tw_timer_expire_timers_1t_3w_1024sl_ov (tw, now);
738 quic_timer_expired (u32 conn_index)
741 QUIC_DBG (4, "Timer expired for conn %u at %ld", conn_index,
742 quic_get_time (NULL));
743 ctx = quic_ctx_get (conn_index, vlib_get_thread_index ());
744 ctx->timer_handle = QUIC_TIMER_HANDLE_INVALID;
745 quic_send_packets (ctx);
749 quic_update_timer (quic_ctx_t * ctx)
751 tw_timer_wheel_1t_3w_1024sl_ov_t *tw;
752 int64_t next_timeout, next_interval;
753 session_t *quic_session;
755 /* This timeout is in ms which is the unit of our timer */
756 next_timeout = quicly_get_first_timeout (ctx->conn);
757 next_interval = next_timeout - quic_get_time (NULL);
759 if (next_timeout == 0 || next_interval <= 0)
761 if (ctx->c_s_index == QUIC_SESSION_INVALID)
767 quic_session = session_get (ctx->c_s_index, ctx->c_thread_index);
768 if (svm_fifo_set_event (quic_session->tx_fifo))
769 session_send_io_evt_to_thread_custom (quic_session,
770 quic_session->thread_index,
771 SESSION_IO_EVT_BUILTIN_TX);
776 tw = &quic_main.wrk_ctx[vlib_get_thread_index ()].timer_wheel;
778 QUIC_DBG (4, "Timer set to %ld (int %ld) for ctx %u", next_timeout,
779 next_interval, ctx->c_c_index);
781 if (ctx->timer_handle == QUIC_TIMER_HANDLE_INVALID)
783 if (next_timeout == INT64_MAX)
785 QUIC_DBG (4, "timer for ctx %u already stopped", ctx->c_c_index);
788 ctx->timer_handle = tw_timer_start_1t_3w_1024sl_ov (tw, ctx->c_c_index,
793 if (next_timeout == INT64_MAX)
795 tw_timer_stop_1t_3w_1024sl_ov (tw, ctx->timer_handle);
796 ctx->timer_handle = QUIC_TIMER_HANDLE_INVALID;
797 QUIC_DBG (4, "Stopping timer for ctx %u", ctx->c_c_index);
800 tw_timer_update_1t_3w_1024sl_ov (tw, ctx->timer_handle,
807 quic_expired_timers_dispatch (u32 * expired_timers)
811 for (i = 0; i < vec_len (expired_timers); i++)
813 quic_timer_expired (expired_timers[i]);
818 quic_encrypt_ticket_cb (ptls_encrypt_ticket_t * _self, ptls_t * tls,
819 int is_encrypt, ptls_buffer_t * dst, ptls_iovec_t src)
821 quic_session_cache_t *self = (void *) _self;
827 /* replace the cached entry along with a newly generated session id */
828 clib_mem_free (self->data.base);
829 if ((self->data.base = clib_mem_alloc (src.len)) == NULL)
830 return PTLS_ERROR_NO_MEMORY;
832 ptls_get_context (tls)->random_bytes (self->id, sizeof (self->id));
833 clib_memcpy (self->data.base, src.base, src.len);
834 self->data.len = src.len;
836 /* store the session id in buffer */
837 if ((ret = ptls_buffer_reserve (dst, sizeof (self->id))) != 0)
839 clib_memcpy (dst->base + dst->off, self->id, sizeof (self->id));
840 dst->off += sizeof (self->id);
846 /* check if session id is the one stored in cache */
847 if (src.len != sizeof (self->id))
848 return PTLS_ERROR_SESSION_NOT_FOUND;
849 if (clib_memcmp (self->id, src.base, sizeof (self->id)) != 0)
850 return PTLS_ERROR_SESSION_NOT_FOUND;
852 /* return the cached value */
853 if ((ret = ptls_buffer_reserve (dst, self->data.len)) != 0)
855 clib_memcpy (dst->base + dst->off, self->data.base, self->data.len);
856 dst->off += self->data.len;
863 quic_store_quicly_ctx (application_t * app, u32 cert_key_index)
865 quic_main_t *qm = &quic_main;
866 quicly_context_t *quicly_ctx;
867 ptls_iovec_t key_vec;
868 app_cert_key_pair_t *ckpair;
873 quicly_ctx_data_t *quicly_ctx_data =
874 clib_mem_alloc (sizeof (quicly_ctx_data_t));
875 clib_memset (quicly_ctx_data, 0, sizeof (*quicly_ctx_data)); /* picotls depends on this */
876 quicly_ctx = &quicly_ctx_data->quicly_ctx;
877 ptls_context_t *ptls_ctx = &quicly_ctx_data->ptls_ctx;
878 ptls_ctx->random_bytes = ptls_openssl_random_bytes;
879 ptls_ctx->get_time = &ptls_get_time;
880 ptls_ctx->key_exchanges = ptls_openssl_key_exchanges;
881 ptls_ctx->cipher_suites = qm->quic_ciphers[qm->default_cipher];
882 ptls_ctx->certificates.list = NULL;
883 ptls_ctx->certificates.count = 0;
884 ptls_ctx->esni = NULL;
885 ptls_ctx->on_client_hello = NULL;
886 ptls_ctx->emit_certificate = NULL;
887 ptls_ctx->sign_certificate = NULL;
888 ptls_ctx->verify_certificate = NULL;
889 ptls_ctx->ticket_lifetime = 86400;
890 ptls_ctx->max_early_data_size = 8192;
891 ptls_ctx->hkdf_label_prefix__obsolete = NULL;
892 ptls_ctx->require_dhe_on_psk = 1;
893 ptls_ctx->encrypt_ticket = &qm->session_cache.super;
895 app->quicly_ctx = (u64 *) quicly_ctx;
896 clib_memcpy (quicly_ctx, &quicly_spec_context, sizeof (quicly_context_t));
898 quicly_ctx->max_packet_size = QUIC_MAX_PACKET_SIZE;
899 quicly_ctx->tls = ptls_ctx;
900 quicly_ctx->stream_open = &on_stream_open;
901 quicly_ctx->closed_by_peer = &on_closed_by_peer;
902 quicly_ctx->now = &quicly_vpp_now_cb;
903 quicly_amend_ptls_context (quicly_ctx->tls);
905 quicly_ctx->transport_params.max_data = QUIC_INT_MAX;
906 quicly_ctx->transport_params.max_streams_uni = (uint64_t) 1 << 60;
907 quicly_ctx->transport_params.max_streams_bidi = (uint64_t) 1 << 60;
909 /* max_enq is FIFO_SIZE - 1 */
910 max_enq = app->sm_properties.rx_fifo_size - 1;
911 quicly_ctx->transport_params.max_stream_data.bidi_local = max_enq;
912 max_enq = app->sm_properties.tx_fifo_size - 1;
913 quicly_ctx->transport_params.max_stream_data.bidi_remote = max_enq;
914 quicly_ctx->transport_params.max_stream_data.uni = QUIC_INT_MAX;
916 quicly_ctx->tls->random_bytes (quicly_ctx_data->cid_key, 16);
917 quicly_ctx_data->cid_key[16] = 0;
918 key_vec = ptls_iovec_init (quicly_ctx_data->cid_key,
919 strlen (quicly_ctx_data->cid_key));
920 quicly_ctx->cid_encryptor =
921 quicly_new_default_cid_encryptor (&ptls_openssl_bfecb,
922 &ptls_openssl_aes128ecb,
923 &ptls_openssl_sha256, key_vec);
925 ckpair = app_cert_key_pair_get_if_valid (cert_key_index);
926 if (ckpair && ckpair->key != NULL && ckpair->cert != NULL)
928 if (load_bio_private_key (quicly_ctx->tls, (char *) ckpair->key))
930 QUIC_DBG (1, "failed to read private key from app configuration\n");
932 if (load_bio_certificate_chain (quicly_ctx->tls, (char *) ckpair->cert))
934 QUIC_DBG (1, "failed to load certificate\n");
939 /* Transport proto functions */
942 quic_connect_stream (session_t * quic_session, u32 opaque)
944 uint64_t quic_session_handle;
945 session_t *stream_session;
946 quic_stream_data_t *stream_data;
947 quicly_stream_t *stream;
949 app_worker_t *app_wrk;
950 quic_ctx_t *qctx, *sctx;
954 /* Find base session to which the user want to attach a stream */
955 quic_session_handle = session_handle (quic_session);
956 QUIC_DBG (2, "Opening new stream (qsession %u)", quic_session_handle);
958 if (session_type_transport_proto (quic_session->session_type) !=
959 TRANSPORT_PROTO_QUIC)
961 QUIC_DBG (1, "received incompatible session");
965 app_wrk = app_worker_get_if_valid (quic_session->app_wrk_index);
968 QUIC_DBG (1, "Invalid app worker :(");
972 sctx_index = quic_ctx_alloc (quic_session->thread_index); /* Allocate before we get pointers */
973 sctx = quic_ctx_get (sctx_index, quic_session->thread_index);
974 qctx = quic_ctx_get (quic_session->connection_index,
975 quic_session->thread_index);
976 if (quic_ctx_is_stream (qctx))
978 QUIC_DBG (1, "session is a stream");
979 quic_ctx_free (sctx);
983 sctx->parent_app_wrk_id = qctx->parent_app_wrk_id;
984 sctx->parent_app_id = qctx->parent_app_id;
985 sctx->quic_connection_ctx_id = qctx->c_c_index;
986 sctx->c_c_index = sctx_index;
987 sctx->c_flags |= TRANSPORT_CONNECTION_F_NO_LOOKUP;
988 sctx->flags |= QUIC_F_IS_STREAM;
992 if (!conn || !quicly_connection_is_ready (conn))
995 if ((rv = quicly_open_stream (conn, &stream, 0 /* uni */ )))
997 QUIC_DBG (2, "Stream open failed with %d", rv);
1000 sctx->stream = stream;
1002 QUIC_DBG (2, "Opened stream %d, creating session", stream->stream_id);
1004 stream_session = session_alloc (qctx->c_thread_index);
1005 QUIC_DBG (2, "Allocated stream_session 0x%lx ctx %u",
1006 session_handle (stream_session), sctx_index);
1007 stream_session->app_wrk_index = app_wrk->wrk_index;
1008 stream_session->connection_index = sctx_index;
1009 stream_session->listener_handle = quic_session_handle;
1010 stream_session->session_type =
1011 session_type_from_proto_and_ip (TRANSPORT_PROTO_QUIC, qctx->udp_is_ip4);
1013 sctx->c_s_index = stream_session->session_index;
1015 if (app_worker_init_connected (app_wrk, stream_session))
1017 QUIC_DBG (1, "failed to app_worker_init_connected");
1018 quicly_reset_stream (stream, QUIC_APP_ALLOCATION_ERROR);
1019 session_free_w_fifos (stream_session);
1020 quic_ctx_free (sctx);
1021 return app_worker_connect_notify (app_wrk, NULL, opaque);
1024 svm_fifo_add_want_deq_ntf (stream_session->rx_fifo,
1025 SVM_FIFO_WANT_DEQ_NOTIF_IF_FULL |
1026 SVM_FIFO_WANT_DEQ_NOTIF_IF_EMPTY);
1028 stream_session->session_state = SESSION_STATE_READY;
1029 if (app_worker_connect_notify (app_wrk, stream_session, opaque))
1031 QUIC_DBG (1, "failed to notify app");
1032 quicly_reset_stream (stream, QUIC_APP_CONNECT_NOTIFY_ERROR);
1033 session_free_w_fifos (stream_session);
1034 quic_ctx_free (sctx);
1037 stream_data = (quic_stream_data_t *) stream->data;
1038 stream_data->ctx_id = sctx->c_c_index;
1039 stream_data->thread_index = sctx->c_thread_index;
1040 stream_data->app_rx_data_len = 0;
1045 quic_connect_connection (session_endpoint_cfg_t * sep)
1047 vnet_connect_args_t _cargs, *cargs = &_cargs;
1048 quic_main_t *qm = &quic_main;
1050 app_worker_t *app_wrk;
1055 clib_memset (cargs, 0, sizeof (*cargs));
1056 ctx_index = quic_ctx_alloc (vlib_get_thread_index ());
1057 ctx = quic_ctx_get (ctx_index, vlib_get_thread_index ());
1058 ctx->parent_app_wrk_id = sep->app_wrk_index;
1059 ctx->c_s_index = QUIC_SESSION_INVALID;
1060 ctx->c_c_index = ctx_index;
1061 ctx->udp_is_ip4 = sep->is_ip4;
1062 ctx->timer_handle = QUIC_TIMER_HANDLE_INVALID;
1063 ctx->conn_state = QUIC_CONN_STATE_HANDSHAKE;
1064 ctx->client_opaque = sep->opaque;
1065 ctx->c_flags |= TRANSPORT_CONNECTION_F_NO_LOOKUP;
1067 ctx->srv_hostname = format (0, "%v", sep->hostname);
1069 /* needed by quic for crypto + determining client / server */
1070 ctx->srv_hostname = format (0, "%U", format_ip46_address,
1071 &sep->ip, sep->is_ip4);
1072 vec_terminate_c_string (ctx->srv_hostname);
1074 clib_memcpy (&cargs->sep, sep, sizeof (session_endpoint_cfg_t));
1075 cargs->sep.transport_proto = TRANSPORT_PROTO_UDPC;
1076 cargs->app_index = qm->app_index;
1077 cargs->api_context = ctx_index;
1079 app_wrk = app_worker_get (sep->app_wrk_index);
1080 app = application_get (app_wrk->app_index);
1081 ctx->parent_app_id = app_wrk->app_index;
1082 cargs->sep_ext.ns_index = app->ns_index;
1084 quic_store_quicly_ctx (app, ctx->ckpair_index);
1085 /* Also store it in ctx for convenience
1086 * Waiting for crypto_ctx logic */
1087 ctx->quicly_ctx = (quicly_context_t *) app->quicly_ctx;
1089 if ((error = vnet_connect (cargs)))
1096 quic_connect (transport_endpoint_cfg_t * tep)
1098 QUIC_DBG (2, "Called quic_connect");
1099 session_endpoint_cfg_t *sep = (session_endpoint_cfg_t *) tep;
1100 session_t *quic_session;
1101 sep = (session_endpoint_cfg_t *) tep;
1103 quic_session = session_get_from_handle_if_valid (sep->parent_handle);
1105 return quic_connect_stream (quic_session, sep->opaque);
1107 return quic_connect_connection (sep);
1111 quic_proto_on_close (u32 ctx_index, u32 thread_index)
1113 quic_ctx_t *ctx = quic_ctx_get_if_valid (ctx_index, thread_index);
1117 session_t *stream_session = session_get (ctx->c_s_index,
1118 ctx->c_thread_index);
1119 clib_warning ("Closing session 0x%lx", session_handle (stream_session));
1121 if (quic_ctx_is_stream (ctx))
1123 quicly_stream_t *stream = ctx->stream;
1124 quicly_reset_stream (stream, QUIC_APP_ERROR_CLOSE_NOTIFY);
1125 quic_send_packets (ctx);
1129 switch (ctx->conn_state)
1131 case QUIC_CONN_STATE_READY:
1132 ctx->conn_state = QUIC_CONN_STATE_ACTIVE_CLOSING;
1133 quicly_conn_t *conn = ctx->conn;
1134 /* Start connection closing. Keep sending packets until quicly_send
1135 returns QUICLY_ERROR_FREE_CONNECTION */
1136 quicly_close (conn, QUIC_APP_ERROR_CLOSE_NOTIFY, "Closed by peer");
1137 /* This also causes all streams to be closed (and the cb called) */
1138 quic_send_packets (ctx);
1140 case QUIC_CONN_STATE_PASSIVE_CLOSING:
1141 ctx->conn_state = QUIC_CONN_STATE_PASSIVE_CLOSING_APP_CLOSED;
1142 /* send_packets will eventually return an error, we delete the conn at
1145 case QUIC_CONN_STATE_PASSIVE_CLOSING_QUIC_CLOSED:
1146 quic_connection_delete (ctx);
1149 QUIC_DBG (0, "BUG");
1155 quic_start_listen (u32 quic_listen_session_index, transport_endpoint_t * tep)
1157 vnet_listen_args_t _bargs, *args = &_bargs;
1158 quic_main_t *qm = &quic_main;
1159 session_handle_t udp_handle;
1160 session_endpoint_cfg_t *sep;
1161 session_t *udp_listen_session;
1162 app_worker_t *app_wrk;
1166 app_listener_t *app_listener;
1168 sep = (session_endpoint_cfg_t *) tep;
1169 app_wrk = app_worker_get (sep->app_wrk_index);
1170 /* We need to call this because we call app_worker_init_connected in
1171 * quic_accept_stream, which assumes the connect segment manager exists */
1172 app_worker_alloc_connects_segment_manager (app_wrk);
1173 app = application_get (app_wrk->app_index);
1174 QUIC_DBG (2, "Called quic_start_listen for app %d", app_wrk->app_index);
1176 quic_store_quicly_ctx (app, sep->ckpair_index);
1178 sep->transport_proto = TRANSPORT_PROTO_UDPC;
1179 clib_memset (args, 0, sizeof (*args));
1180 args->app_index = qm->app_index;
1181 args->sep_ext = *sep;
1182 args->sep_ext.ns_index = app->ns_index;
1183 if (vnet_listen (args))
1186 lctx_index = quic_ctx_alloc (0);
1187 udp_handle = args->handle;
1188 app_listener = app_listener_get_w_handle (udp_handle);
1189 udp_listen_session = app_listener_get_session (app_listener);
1190 udp_listen_session->opaque = lctx_index;
1192 lctx = quic_ctx_get (lctx_index, 0);
1193 lctx->flags |= QUIC_F_IS_LISTENER;
1194 /* Also store it in ctx for convenience
1195 * Waiting for crypto_ctx logic */
1196 lctx->quicly_ctx = (quicly_context_t *) app->quicly_ctx;
1198 clib_memcpy (&lctx->c_rmt_ip, &args->sep.peer.ip, sizeof (ip46_address_t));
1199 clib_memcpy (&lctx->c_lcl_ip, &args->sep.ip, sizeof (ip46_address_t));
1200 lctx->c_rmt_port = args->sep.peer.port;
1201 lctx->c_lcl_port = args->sep.port;
1202 lctx->c_is_ip4 = args->sep.is_ip4;
1203 lctx->c_fib_index = args->sep.fib_index;
1204 lctx->c_proto = TRANSPORT_PROTO_QUIC;
1205 lctx->parent_app_wrk_id = sep->app_wrk_index;
1206 lctx->parent_app_id = app_wrk->app_index;
1207 lctx->udp_session_handle = udp_handle;
1208 lctx->c_s_index = quic_listen_session_index;
1210 QUIC_DBG (2, "Listening UDP session 0x%lx",
1211 session_handle (udp_listen_session));
1212 QUIC_DBG (2, "Listening QUIC session 0x%lx", quic_listen_session_index);
1217 quic_stop_listen (u32 lctx_index)
1219 QUIC_DBG (2, "Called quic_stop_listen");
1221 lctx = quic_ctx_get (lctx_index, 0);
1222 ASSERT (quic_ctx_is_listener (lctx));
1223 vnet_unlisten_args_t a = {
1224 .handle = lctx->udp_session_handle,
1225 .app_index = quic_main.app_index,
1226 .wrk_map_index = 0 /* default wrk */
1228 if (vnet_unlisten (&a))
1229 clib_warning ("unlisten errored");
1231 /* TODO: crypto state cleanup */
1233 quic_ctx_free (lctx);
1237 static transport_connection_t *
1238 quic_connection_get (u32 ctx_index, u32 thread_index)
1241 ctx = quic_ctx_get (ctx_index, thread_index);
1242 return &ctx->connection;
1245 static transport_connection_t *
1246 quic_listener_get (u32 listener_index)
1248 QUIC_DBG (2, "Called quic_listener_get");
1250 ctx = quic_ctx_get (listener_index, 0);
1251 return &ctx->connection;
1255 format_quic_ctx (u8 * s, va_list * args)
1257 quic_ctx_t *ctx = va_arg (*args, quic_ctx_t *);
1258 u32 verbose = va_arg (*args, u32);
1263 str = format (str, "[#%d][Q] ", ctx->c_thread_index);
1265 if (quic_ctx_is_listener (ctx))
1266 str = format (str, "Listener, UDP %ld", ctx->udp_session_handle);
1267 else if (quic_ctx_is_stream (ctx))
1268 str = format (str, "Stream %ld conn %d",
1269 ctx->stream->stream_id, ctx->quic_connection_ctx_id);
1270 else /* connection */
1271 str = format (str, "Conn %d UDP %d", ctx->c_c_index,
1272 ctx->udp_session_handle);
1274 str = format (str, " app %d wrk %d", ctx->parent_app_id,
1275 ctx->parent_app_wrk_id);
1278 s = format (s, "%-50s%-15d", str, ctx->conn_state);
1280 s = format (s, "%s\n", str);
1286 format_quic_connection (u8 * s, va_list * args)
1288 u32 qc_index = va_arg (*args, u32);
1289 u32 thread_index = va_arg (*args, u32);
1290 u32 verbose = va_arg (*args, u32);
1291 quic_ctx_t *ctx = quic_ctx_get (qc_index, thread_index);
1292 s = format (s, "%U", format_quic_ctx, ctx, verbose);
1297 format_quic_half_open (u8 * s, va_list * args)
1299 u32 qc_index = va_arg (*args, u32);
1300 u32 thread_index = va_arg (*args, u32);
1301 quic_ctx_t *ctx = quic_ctx_get (qc_index, thread_index);
1302 s = format (s, "[#%d][Q] half-open app %u", thread_index,
1303 ctx->parent_app_id);
1309 format_quic_listener (u8 * s, va_list * args)
1311 u32 tci = va_arg (*args, u32);
1312 u32 thread_index = va_arg (*args, u32);
1313 u32 verbose = va_arg (*args, u32);
1314 quic_ctx_t *ctx = quic_ctx_get (tci, thread_index);
1315 s = format (s, "%U", format_quic_ctx, ctx, verbose);
1319 /* Session layer callbacks */
1322 quic_build_sockaddr (struct sockaddr *sa, socklen_t * salen,
1323 ip46_address_t * addr, u16 port, u8 is_ip4)
1327 struct sockaddr_in *sa4 = (struct sockaddr_in *) sa;
1328 sa4->sin_family = AF_INET;
1329 sa4->sin_port = port;
1330 sa4->sin_addr.s_addr = addr->ip4.as_u32;
1331 *salen = sizeof (struct sockaddr_in);
1335 struct sockaddr_in6 *sa6 = (struct sockaddr_in6 *) sa;
1336 sa6->sin6_family = AF_INET6;
1337 sa6->sin6_port = port;
1338 clib_memcpy (&sa6->sin6_addr, &addr->ip6, 16);
1339 *salen = sizeof (struct sockaddr_in6);
1344 quic_on_quic_session_connected (quic_ctx_t * ctx)
1346 session_t *quic_session;
1347 app_worker_t *app_wrk;
1348 u32 ctx_id = ctx->c_c_index;
1349 u32 thread_index = ctx->c_thread_index;
1352 app_wrk = app_worker_get_if_valid (ctx->parent_app_wrk_id);
1355 quic_disconnect_transport (ctx);
1359 quic_session = session_alloc (thread_index);
1361 QUIC_DBG (2, "Allocated quic session 0x%lx", session_handle (quic_session));
1362 ctx->c_s_index = quic_session->session_index;
1363 quic_session->app_wrk_index = ctx->parent_app_wrk_id;
1364 quic_session->connection_index = ctx->c_c_index;
1365 quic_session->listener_handle = SESSION_INVALID_HANDLE;
1366 quic_session->session_type =
1367 session_type_from_proto_and_ip (TRANSPORT_PROTO_QUIC, ctx->udp_is_ip4);
1369 if (app_worker_init_connected (app_wrk, quic_session))
1371 QUIC_DBG (1, "failed to app_worker_init_connected");
1372 quic_proto_on_close (ctx_id, thread_index);
1373 return app_worker_connect_notify (app_wrk, NULL, ctx->client_opaque);
1376 quic_session->session_state = SESSION_STATE_CONNECTING;
1377 if ((rv = app_worker_connect_notify (app_wrk, quic_session,
1378 ctx->client_opaque)))
1380 QUIC_DBG (1, "failed to notify app %d", rv);
1381 quic_proto_on_close (ctx_id, thread_index);
1385 /* If the app opens a stream in its callback it may invalidate ctx */
1386 ctx = quic_ctx_get (ctx_id, thread_index);
1388 * app_worker_connect_notify() might have reallocated pool, reload
1389 * quic_session pointer
1391 quic_session = session_get (ctx->c_s_index, thread_index);
1392 quic_session->session_state = SESSION_STATE_LISTENING;
1398 quic_check_quic_session_connected (quic_ctx_t * ctx)
1400 /* Called when we need to trigger quic session connected
1401 * we may call this function on the server side / at
1404 /* Conn may be set to null if the connection is terminated */
1405 if (!ctx->conn || ctx->conn_state != QUIC_CONN_STATE_HANDSHAKE)
1407 if (!quicly_connection_is_ready (ctx->conn))
1409 ctx->conn_state = QUIC_CONN_STATE_READY;
1410 if (!quicly_is_client (ctx->conn))
1412 return quic_on_quic_session_connected (ctx);
1416 quic_receive_connection (void *arg)
1418 u32 new_ctx_id, thread_index = vlib_get_thread_index ();
1419 quic_ctx_t *temp_ctx, *new_ctx;
1420 clib_bihash_kv_16_8_t kv;
1421 quicly_conn_t *conn;
1422 session_t *udp_session;
1425 new_ctx_id = quic_ctx_alloc (thread_index);
1426 new_ctx = quic_ctx_get (new_ctx_id, thread_index);
1428 QUIC_DBG (2, "Received conn %u (now %u)", temp_ctx->c_thread_index,
1432 clib_memcpy (new_ctx, temp_ctx, sizeof (quic_ctx_t));
1433 clib_mem_free (temp_ctx);
1435 new_ctx->c_thread_index = thread_index;
1436 new_ctx->c_c_index = new_ctx_id;
1438 conn = new_ctx->conn;
1439 quic_store_conn_ctx (conn, new_ctx);
1440 quic_make_connection_key (&kv, quicly_get_master_id (conn));
1441 kv.value = ((u64) thread_index) << 32 | (u64) new_ctx_id;
1442 QUIC_DBG (2, "Registering conn with id %lu %lu", kv.key[0], kv.key[1]);
1443 clib_bihash_add_del_16_8 (&quic_main.connection_hash, &kv, 1 /* is_add */ );
1444 new_ctx->timer_handle = QUIC_TIMER_HANDLE_INVALID;
1445 quic_update_timer (new_ctx);
1447 /* Trigger write on this connection if necessary */
1448 udp_session = session_get_from_handle (new_ctx->udp_session_handle);
1449 udp_session->opaque = new_ctx_id;
1450 udp_session->flags &= ~SESSION_F_IS_MIGRATING;
1451 if (svm_fifo_max_dequeue (udp_session->tx_fifo))
1452 quic_set_udp_tx_evt (udp_session);
1456 quic_transfer_connection (u32 ctx_index, u32 dest_thread)
1458 tw_timer_wheel_1t_3w_1024sl_ov_t *tw;
1459 quic_ctx_t *ctx, *temp_ctx;
1460 u32 thread_index = vlib_get_thread_index ();
1462 QUIC_DBG (2, "Transferring conn %u to thread %u", ctx_index, dest_thread);
1464 temp_ctx = clib_mem_alloc (sizeof (quic_ctx_t));
1466 ctx = quic_ctx_get (ctx_index, thread_index);
1468 clib_memcpy (temp_ctx, ctx, sizeof (quic_ctx_t));
1470 /* Remove from timer wheel and thread-local pool */
1471 if (ctx->timer_handle != QUIC_TIMER_HANDLE_INVALID)
1473 tw = &quic_main.wrk_ctx[thread_index].timer_wheel;
1474 tw_timer_stop_1t_3w_1024sl_ov (tw, ctx->timer_handle);
1476 quic_ctx_free (ctx);
1478 /* Send connection to destination thread */
1479 session_send_rpc_evt_to_thread (dest_thread, quic_receive_connection,
1484 quic_udp_session_connected_callback (u32 quic_app_index, u32 ctx_index,
1485 session_t * udp_session, u8 is_fail)
1487 QUIC_DBG (2, "QSession is now connected (id %u)",
1488 udp_session->session_index);
1489 /* This should always be called before quic_connect returns since UDP always
1490 * connects instantly. */
1491 clib_bihash_kv_16_8_t kv;
1492 struct sockaddr_in6 sa6;
1493 struct sockaddr *sa = (struct sockaddr *) &sa6;
1495 transport_connection_t *tc;
1496 app_worker_t *app_wrk;
1497 quicly_conn_t *conn;
1499 u32 thread_index = vlib_get_thread_index ();
1501 quicly_context_t *quicly_ctx;
1504 ctx = quic_ctx_get (ctx_index, thread_index);
1508 app_wrk = app_worker_get_if_valid (ctx->parent_app_wrk_id);
1511 api_context = ctx->c_s_index;
1512 app_worker_connect_notify (app_wrk, 0, api_context);
1517 ctx->c_thread_index = thread_index;
1518 ctx->c_c_index = ctx_index;
1520 QUIC_DBG (2, "Quic connect returned %u. New ctx [%u]%x",
1521 is_fail, thread_index, (ctx) ? ctx_index : ~0);
1523 ctx->udp_session_handle = session_handle (udp_session);
1524 udp_session->opaque = ctx_index;
1526 /* Init QUIC lib connection
1527 * Generate required sockaddr & salen */
1528 tc = session_get_transport (udp_session);
1529 quic_build_sockaddr (sa, &salen, &tc->rmt_ip, tc->rmt_port, tc->is_ip4);
1531 quicly_ctx = quic_get_quicly_ctx_from_ctx (ctx);
1532 ret = quicly_connect (&ctx->conn, quicly_ctx, (char *) ctx->srv_hostname,
1533 sa, NULL, &quic_main.next_cid, ptls_iovec_init (NULL,
1535 &quic_main.hs_properties, NULL);
1536 ++quic_main.next_cid.master_id;
1537 /* Save context handle in quicly connection */
1538 quic_store_conn_ctx (ctx->conn, ctx);
1541 /* Register connection in connections map */
1543 quic_make_connection_key (&kv, quicly_get_master_id (conn));
1544 kv.value = ((u64) thread_index) << 32 | (u64) ctx_index;
1545 QUIC_DBG (2, "Registering conn with id %lu %lu", kv.key[0], kv.key[1]);
1546 clib_bihash_add_del_16_8 (&quic_main.connection_hash, &kv, 1 /* is_add */ );
1548 /* UDP stack quirk? preemptively transfer connection if that happens */
1549 if (udp_session->thread_index != thread_index)
1550 quic_transfer_connection (ctx_index, udp_session->thread_index);
1552 quic_send_packets (ctx);
1558 quic_udp_session_disconnect_callback (session_t * s)
1560 clib_warning ("UDP session disconnected???");
1564 quic_udp_session_reset_callback (session_t * s)
1566 clib_warning ("UDP session reset???");
1570 quic_udp_session_migrate_callback (session_t * s, session_handle_t new_sh)
1572 u32 new_thread = session_thread_from_handle (new_sh);
1575 QUIC_DBG (1, "Session %x migrated to %lx", s->session_index, new_sh);
1576 ASSERT (vlib_get_thread_index () == s->thread_index);
1577 ctx = quic_ctx_get (s->opaque, s->thread_index);
1578 ASSERT (ctx->udp_session_handle == session_handle (s));
1580 ctx->udp_session_handle = new_sh;
1582 s->opaque = 0xfeedface;
1584 quic_transfer_connection (ctx->c_c_index, new_thread);
1588 quic_udp_session_accepted_callback (session_t * udp_session)
1590 /* New UDP connection, try to accept it */
1593 quic_ctx_t *ctx, *lctx;
1594 session_t *udp_listen_session;
1595 u32 thread_index = vlib_get_thread_index ();
1597 udp_listen_session =
1598 listen_session_get_from_handle (udp_session->listener_handle);
1600 ctx_index = quic_ctx_alloc (thread_index);
1601 ctx = quic_ctx_get (ctx_index, thread_index);
1602 ctx->c_thread_index = udp_session->thread_index;
1603 ctx->c_c_index = ctx_index;
1604 ctx->c_s_index = QUIC_SESSION_INVALID;
1605 ctx->udp_session_handle = session_handle (udp_session);
1606 QUIC_DBG (2, "ACCEPTED UDP 0x%lx", ctx->udp_session_handle);
1607 ctx->listener_ctx_id = udp_listen_session->opaque;
1608 lctx = quic_ctx_get (udp_listen_session->opaque,
1609 udp_listen_session->thread_index);
1610 ctx->udp_is_ip4 = lctx->c_is_ip4;
1611 ctx->parent_app_id = lctx->parent_app_id;
1612 ctx->parent_app_wrk_id = lctx->parent_app_wrk_id;
1613 ctx->timer_handle = QUIC_TIMER_HANDLE_INVALID;
1614 ctx->conn_state = QUIC_CONN_STATE_OPENED;
1615 ctx->c_flags |= TRANSPORT_CONNECTION_F_NO_LOOKUP;
1617 /* Also store it in ctx for convenience
1618 * Waiting for crypto_ctx logic */
1619 ctx->quicly_ctx = lctx->quicly_ctx;
1621 udp_session->opaque = ctx_index;
1623 /* Put this ctx in the "opening" pool */
1624 pool_get (quic_main.wrk_ctx[ctx->c_thread_index].opening_ctx_pool,
1626 *pool_index = ctx_index;
1628 /* TODO timeout to delete these if they never connect */
1633 quic_add_segment_callback (u32 client_index, u64 seg_handle)
1635 /* No-op for builtin */
1640 quic_del_segment_callback (u32 client_index, u64 seg_handle)
1642 /* No-op for builtin */
1647 quic_custom_app_rx_callback (transport_connection_t * tc)
1650 session_t *stream_session = session_get (tc->s_index, tc->thread_index);
1651 QUIC_DBG (3, "Received app READ notification");
1652 quic_ack_rx_data (stream_session);
1653 svm_fifo_reset_has_deq_ntf (stream_session->rx_fifo);
1655 /* Need to send packets (acks may never be sent otherwise) */
1656 ctx = quic_ctx_get (stream_session->connection_index,
1657 stream_session->thread_index);
1658 quic_send_packets (ctx);
1663 quic_custom_tx_callback (void *s, u32 max_burst_size)
1665 session_t *stream_session = (session_t *) s;
1666 quicly_stream_t *stream;
1671 (stream_session->session_state >= SESSION_STATE_TRANSPORT_CLOSING))
1673 ctx = quic_ctx_get (stream_session->connection_index,
1674 stream_session->thread_index);
1675 if (PREDICT_FALSE (!quic_ctx_is_stream (ctx)))
1677 goto tx_end; /* Most probably a reschedule */
1680 QUIC_DBG (3, "Stream TX event");
1681 quic_ack_rx_data (stream_session);
1682 if (!svm_fifo_max_dequeue (stream_session->tx_fifo))
1685 stream = ctx->stream;
1686 if (!quicly_sendstate_is_open (&stream->sendstate))
1688 QUIC_DBG (1, "Warning: tried to send on closed stream");
1692 if ((rv = quicly_stream_sync_sendbuf (stream, 1)) != 0)
1696 quic_send_packets (ctx);
1702 * Returns 0 if a matching connection is found and is on the right thread.
1703 * Otherwise returns -1.
1704 * If a connection is found, even on the wrong thread, ctx_thread and ctx_index
1708 quic_find_packet_ctx (u32 * ctx_thread, u32 * ctx_index,
1709 struct sockaddr *sa, socklen_t salen,
1710 quicly_decoded_packet_t * packet,
1711 u32 caller_thread_index)
1714 quicly_conn_t *conn_;
1715 clib_bihash_kv_16_8_t kv;
1716 clib_bihash_16_8_t *h;
1718 h = &quic_main.connection_hash;
1719 quic_make_connection_key (&kv, &packet->cid.dest.plaintext);
1720 QUIC_DBG (3, "Searching conn with id %lu %lu", kv.key[0], kv.key[1]);
1722 if (clib_bihash_search_16_8 (h, &kv, &kv) == 0)
1724 u32 index = kv.value & UINT32_MAX;
1725 u32 thread_id = kv.value >> 32;
1726 /* Check if this connection belongs to this thread, otherwise
1727 * ask for it to be moved */
1728 if (thread_id != caller_thread_index)
1730 QUIC_DBG (2, "Connection is on wrong thread");
1731 /* Cannot make full check with quicly_is_destination... */
1733 *ctx_thread = thread_id;
1736 ctx_ = quic_ctx_get (index, vlib_get_thread_index ());
1738 if (conn_ && quicly_is_destination (conn_, NULL, sa, packet))
1740 QUIC_DBG (3, "Connection found");
1742 *ctx_thread = thread_id;
1746 QUIC_DBG (3, "connection not found");
1751 quic_accept_connection (u32 ctx_index, struct sockaddr *sa,
1752 socklen_t salen, quicly_decoded_packet_t packet)
1754 u32 thread_index = vlib_get_thread_index ();
1755 quicly_context_t *quicly_ctx;
1756 session_t *quic_session;
1757 clib_bihash_kv_16_8_t kv;
1758 app_worker_t *app_wrk;
1759 quicly_conn_t *conn;
1764 /* new connection, accept and create context if packet is valid
1765 * TODO: check if socket is actually listening? */
1766 ctx = quic_ctx_get (ctx_index, thread_index);
1767 quicly_ctx = quic_get_quicly_ctx_from_ctx (ctx);
1768 if ((rv = quicly_accept (&conn, quicly_ctx, NULL, sa,
1769 &packet, NULL, &quic_main.next_cid, NULL)))
1771 /* Invalid packet, pass */
1772 assert (conn == NULL);
1773 QUIC_DBG (1, "Accept failed with %d", rv);
1774 /* TODO: cleanup created quic ctx and UDP session */
1777 assert (conn != NULL);
1779 ++quic_main.next_cid.master_id;
1780 /* Save ctx handle in quicly connection */
1781 quic_store_conn_ctx (conn, ctx);
1783 ctx->conn_state = QUIC_CONN_STATE_HANDSHAKE;
1785 quic_session = session_alloc (ctx->c_thread_index);
1786 QUIC_DBG (2, "Allocated quic_session, 0x%lx ctx %u",
1787 session_handle (quic_session), ctx->c_c_index);
1788 quic_session->session_state = SESSION_STATE_LISTENING;
1789 ctx->c_s_index = quic_session->session_index;
1791 lctx = quic_ctx_get (ctx->listener_ctx_id, 0);
1793 quic_session->app_wrk_index = lctx->parent_app_wrk_id;
1794 quic_session->connection_index = ctx->c_c_index;
1795 quic_session->session_type =
1796 session_type_from_proto_and_ip (TRANSPORT_PROTO_QUIC, ctx->udp_is_ip4);
1797 quic_session->listener_handle = lctx->c_s_index;
1799 /* TODO: don't alloc fifos when we don't transfer data on this session
1800 * but we still need fifos for the events? */
1801 if ((rv = app_worker_init_accepted (quic_session)))
1803 QUIC_DBG (1, "failed to allocate fifos");
1804 session_free (quic_session);
1807 app_wrk = app_worker_get (quic_session->app_wrk_index);
1808 if ((rv = app_worker_accept_notify (app_wrk, quic_session)))
1810 QUIC_DBG (1, "failed to notify accept worker app");
1814 /* Register connection in connections map */
1815 quic_make_connection_key (&kv, quicly_get_master_id (conn));
1816 kv.value = ((u64) thread_index) << 32 | (u64) ctx_index;
1817 clib_bihash_add_del_16_8 (&quic_main.connection_hash, &kv, 1 /* is_add */ );
1818 QUIC_DBG (2, "Registering conn with id %lu %lu", kv.key[0], kv.key[1]);
1820 return quic_send_packets (ctx);
1824 quic_reset_connection (u64 udp_session_handle,
1825 struct sockaddr *sa, socklen_t salen,
1826 quicly_decoded_packet_t packet)
1828 /* short header packet; potentially a dead connection. No need to check the
1829 * length of the incoming packet, because loop is prevented by authenticating
1830 * the CID (by checking node_id and thread_id). If the peer is also sending a
1831 * reset, then the next CID is highly likely to contain a non-authenticating
1833 QUIC_DBG (2, "Sending stateless reset");
1835 quicly_datagram_t *dgram;
1836 session_t *udp_session;
1837 quicly_context_t *quicly_ctx;
1838 if (packet.cid.dest.plaintext.node_id != 0
1839 || packet.cid.dest.plaintext.thread_id != 0)
1841 quicly_ctx = quic_get_quicly_ctx_from_udp (udp_session_handle);
1842 dgram = quicly_send_stateless_reset (quicly_ctx, sa, NULL,
1843 &packet.cid.dest.plaintext);
1846 udp_session = session_get_from_handle (udp_session_handle);
1847 rv = quic_send_datagram (udp_session, dgram);
1848 quic_set_udp_tx_evt (udp_session);
1853 quic_process_one_rx_packet (u64 udp_session_handle, svm_fifo_t * f,
1854 u32 * fifo_offset, u32 * max_packet, u32 packet_n,
1855 quic_rx_packet_ctx_t * packet_ctx)
1857 session_dgram_hdr_t ph;
1858 quic_ctx_t *ctx = NULL;
1860 struct sockaddr_in6 sa6;
1861 struct sockaddr *sa = (struct sockaddr *) &sa6;
1865 packet_ctx->thread_index = UINT32_MAX;
1866 packet_ctx->ctx_index = UINT32_MAX;
1867 u32 thread_index = vlib_get_thread_index ();
1868 u32 *opening_ctx_pool, *ctx_index_ptr;
1869 u32 cur_deq = svm_fifo_max_dequeue (f) - *fifo_offset;
1870 quicly_context_t *quicly_ctx;
1874 *max_packet = packet_n + 1;
1878 if (cur_deq < SESSION_CONN_HDR_LEN)
1880 QUIC_DBG (1, "Not enough data for even a header in RX");
1883 ret = svm_fifo_peek (f, *fifo_offset, SESSION_CONN_HDR_LEN, (u8 *) & ph);
1884 if (ret != SESSION_CONN_HDR_LEN)
1886 QUIC_DBG (1, "Not enough data for header in RX");
1889 ASSERT (ph.data_offset == 0);
1890 full_len = ph.data_length + SESSION_CONN_HDR_LEN;
1891 if (full_len > cur_deq)
1893 QUIC_DBG (1, "Not enough data in fifo RX");
1897 /* Quicly can read len bytes from the fifo at offset:
1898 * ph.data_offset + SESSION_CONN_HDR_LEN */
1899 ret = svm_fifo_peek (f, SESSION_CONN_HDR_LEN + *fifo_offset,
1900 ph.data_length, packet_ctx->data);
1901 if (ret != ph.data_length)
1903 QUIC_DBG (1, "Not enough data peeked in RX");
1907 quic_increment_counter (QUIC_ERROR_RX_PACKETS, 1);
1909 quic_build_sockaddr (sa, &salen, &ph.rmt_ip, ph.rmt_port, ph.is_ip4);
1910 quicly_ctx = quic_get_quicly_ctx_from_udp (udp_session_handle);
1911 plen = quicly_decode_packet (quicly_ctx, &packet_ctx->packet,
1912 packet_ctx->data, ph.data_length);
1914 if (plen == SIZE_MAX)
1916 *fifo_offset += SESSION_CONN_HDR_LEN + ph.data_length;
1920 err = quic_find_packet_ctx (&packet_ctx->thread_index,
1921 &packet_ctx->ctx_index, sa, salen,
1922 &packet_ctx->packet, thread_index);
1925 ctx = quic_ctx_get (packet_ctx->ctx_index, thread_index);
1926 rv = quicly_receive (ctx->conn, NULL, sa, &packet_ctx->packet);
1928 QUIC_DBG (1, "quicly_receive return error %d", rv);
1930 else if (packet_ctx->ctx_index != UINT32_MAX)
1932 /* Connection found but on wrong thread, ask move */
1933 *max_packet = packet_n + 1;
1936 else if ((packet_ctx->packet.octets.base[0] & QUICLY_PACKET_TYPE_BITMASK) ==
1937 QUICLY_PACKET_TYPE_INITIAL)
1939 /* Try to find matching "opening" ctx */
1940 opening_ctx_pool = quic_main.wrk_ctx[thread_index].opening_ctx_pool;
1943 pool_foreach (ctx_index_ptr, opening_ctx_pool,
1945 ctx = quic_ctx_get (*ctx_index_ptr, thread_index);
1946 if (ctx->udp_session_handle == udp_session_handle)
1948 /* Right ctx found, create conn & remove from pool */
1949 quic_accept_connection (*ctx_index_ptr, sa, salen, packet_ctx->packet);
1950 *max_packet = packet_n + 1;
1951 packet_ctx->thread_index = thread_index;
1952 packet_ctx->ctx_index = *ctx_index_ptr;
1953 pool_put (opening_ctx_pool, ctx_index_ptr);
1961 quic_reset_connection (udp_session_handle, sa, salen,
1962 packet_ctx->packet);
1966 *fifo_offset += SESSION_CONN_HDR_LEN + ph.data_length;
1971 quic_udp_session_rx_callback (session_t * udp_session)
1973 /* Read data from UDP rx_fifo and pass it to the quicly conn. */
1974 quic_ctx_t *ctx = NULL;
1977 u64 udp_session_handle = session_handle (udp_session);
1979 u32 thread_index = vlib_get_thread_index ();
1980 quic_rx_packet_ctx_t packets_ctx[16];
1981 u32 i, fifo_offset, max_packets;
1983 if (udp_session->flags & SESSION_F_IS_MIGRATING)
1985 QUIC_DBG (3, "RX on migrating udp session");
1991 udp_session = session_get_from_handle (udp_session_handle); /* session alloc might have happened */
1992 f = udp_session->rx_fifo;
1993 max_deq = svm_fifo_max_dequeue (f);
1999 for (i = 0; i < max_packets; i++)
2000 quic_process_one_rx_packet (udp_session_handle, f, &fifo_offset,
2001 &max_packets, i, &packets_ctx[i]);
2003 for (i = 0; i < max_packets; i++)
2005 if (packets_ctx[i].thread_index != thread_index)
2007 ctx = quic_ctx_get (packets_ctx[i].ctx_index,
2008 packets_ctx[i].thread_index);
2009 quic_check_quic_session_connected (ctx);
2010 ctx = quic_ctx_get (packets_ctx[i].ctx_index,
2011 packets_ctx[i].thread_index);
2012 quic_send_packets (ctx);
2014 svm_fifo_dequeue_drop (f, fifo_offset);
2020 quic_common_get_transport_endpoint (quic_ctx_t * ctx,
2021 transport_endpoint_t * tep, u8 is_lcl)
2023 session_t *udp_session;
2024 if (!quic_ctx_is_stream (ctx))
2026 udp_session = session_get_from_handle (ctx->udp_session_handle);
2027 session_get_endpoint (udp_session, tep, is_lcl);
2032 quic_get_transport_listener_endpoint (u32 listener_index,
2033 transport_endpoint_t * tep, u8 is_lcl)
2036 app_listener_t *app_listener;
2037 session_t *udp_listen_session;
2038 ctx = quic_ctx_get (listener_index, vlib_get_thread_index ());
2039 if (quic_ctx_is_listener (ctx))
2041 app_listener = app_listener_get_w_handle (ctx->udp_session_handle);
2042 udp_listen_session = app_listener_get_session (app_listener);
2043 return session_get_endpoint (udp_listen_session, tep, is_lcl);
2045 quic_common_get_transport_endpoint (ctx, tep, is_lcl);
2049 quic_get_transport_endpoint (u32 ctx_index, u32 thread_index,
2050 transport_endpoint_t * tep, u8 is_lcl)
2053 ctx = quic_ctx_get (ctx_index, thread_index);
2054 quic_common_get_transport_endpoint (ctx, tep, is_lcl);
2058 static session_cb_vft_t quic_app_cb_vft = {
2059 .session_accept_callback = quic_udp_session_accepted_callback,
2060 .session_disconnect_callback = quic_udp_session_disconnect_callback,
2061 .session_connected_callback = quic_udp_session_connected_callback,
2062 .session_reset_callback = quic_udp_session_reset_callback,
2063 .session_migrate_callback = quic_udp_session_migrate_callback,
2064 .add_segment_callback = quic_add_segment_callback,
2065 .del_segment_callback = quic_del_segment_callback,
2066 .builtin_app_rx_callback = quic_udp_session_rx_callback,
2069 static const transport_proto_vft_t quic_proto = {
2070 .connect = quic_connect,
2071 .close = quic_proto_on_close,
2072 .start_listen = quic_start_listen,
2073 .stop_listen = quic_stop_listen,
2074 .get_connection = quic_connection_get,
2075 .get_listener = quic_listener_get,
2076 .update_time = quic_update_time,
2077 .app_rx_evt = quic_custom_app_rx_callback,
2078 .custom_tx = quic_custom_tx_callback,
2079 .format_connection = format_quic_connection,
2080 .format_half_open = format_quic_half_open,
2081 .format_listener = format_quic_listener,
2082 .get_transport_endpoint = quic_get_transport_endpoint,
2083 .get_transport_listener_endpoint = quic_get_transport_listener_endpoint,
2084 .transport_options = {
2085 .tx_type = TRANSPORT_TX_INTERNAL,
2086 .service_type = TRANSPORT_SERVICE_APP,
2092 quic_register_cipher_suite (crypto_engine_type_t type,
2093 ptls_cipher_suite_t ** ciphers)
2095 quic_main_t *qm = &quic_main;
2096 vec_validate (qm->quic_ciphers, type);
2097 qm->quic_ciphers[type] = ciphers;
2101 quic_update_fifo_size ()
2103 quic_main_t *qm = &quic_main;
2104 segment_manager_props_t *seg_mgr_props =
2105 application_get_segment_manager_properties (qm->app_index);
2110 ("error while getting segment_manager_props_t, can't update fifo-size");
2114 seg_mgr_props->tx_fifo_size = qm->udp_fifo_size;
2115 seg_mgr_props->rx_fifo_size = qm->udp_fifo_size;
2118 static clib_error_t *
2119 quic_init (vlib_main_t * vm)
2121 u32 segment_size = 256 << 20;
2122 vlib_thread_main_t *vtm = vlib_get_thread_main ();
2123 tw_timer_wheel_1t_3w_1024sl_ov_t *tw;
2124 vnet_app_attach_args_t _a, *a = &_a;
2125 u64 options[APP_OPTIONS_N_OPTIONS];
2126 quic_main_t *qm = &quic_main;
2129 num_threads = 1 /* main thread */ + vtm->n_threads;
2131 clib_memset (a, 0, sizeof (*a));
2132 clib_memset (options, 0, sizeof (options));
2134 a->session_cb_vft = &quic_app_cb_vft;
2135 a->api_client_index = APP_INVALID_INDEX;
2136 a->options = options;
2137 a->name = format (0, "quic");
2138 a->options[APP_OPTIONS_SEGMENT_SIZE] = segment_size;
2139 a->options[APP_OPTIONS_ADD_SEGMENT_SIZE] = segment_size;
2140 a->options[APP_OPTIONS_RX_FIFO_SIZE] = qm->udp_fifo_size;
2141 a->options[APP_OPTIONS_TX_FIFO_SIZE] = qm->udp_fifo_size;
2142 a->options[APP_OPTIONS_PREALLOC_FIFO_PAIRS] = qm->udp_fifo_prealloc;
2143 a->options[APP_OPTIONS_FLAGS] = APP_OPTIONS_FLAGS_IS_BUILTIN;
2144 a->options[APP_OPTIONS_FLAGS] |= APP_OPTIONS_FLAGS_USE_GLOBAL_SCOPE;
2145 a->options[APP_OPTIONS_FLAGS] |= APP_OPTIONS_FLAGS_IS_TRANSPORT_APP;
2147 if (vnet_application_attach (a))
2149 clib_warning ("failed to attach quic app");
2150 return clib_error_return (0, "failed to attach quic app");
2153 vec_validate (qm->ctx_pool, num_threads - 1);
2154 vec_validate (qm->wrk_ctx, num_threads - 1);
2155 /* Timer wheels, one per thread. */
2156 for (i = 0; i < num_threads; i++)
2158 tw = &qm->wrk_ctx[i].timer_wheel;
2159 tw_timer_wheel_init_1t_3w_1024sl_ov (tw, quic_expired_timers_dispatch,
2160 1e-3 /* timer period 1ms */ , ~0);
2161 tw->last_run_time = vlib_time_now (vlib_get_main ());
2164 clib_bihash_init_16_8 (&qm->connection_hash, "quic connections", 1024,
2168 qm->app_index = a->app_index;
2169 qm->tstamp_ticks_per_clock = vm->clib_time.seconds_per_clock
2170 / QUIC_TSTAMP_RESOLUTION;
2171 qm->session_cache.super.cb = quic_encrypt_ticket_cb;
2173 transport_register_protocol (TRANSPORT_PROTO_QUIC, &quic_proto,
2174 FIB_PROTOCOL_IP4, ~0);
2175 transport_register_protocol (TRANSPORT_PROTO_QUIC, &quic_proto,
2176 FIB_PROTOCOL_IP6, ~0);
2178 quic_register_cipher_suite (CRYPTO_ENGINE_VPP, quic_crypto_cipher_suites);
2179 quic_register_cipher_suite (CRYPTO_ENGINE_PICOTLS,
2180 ptls_openssl_cipher_suites);
2181 qm->default_cipher = CRYPTO_ENGINE_PICOTLS;
2186 VLIB_INIT_FUNCTION (quic_init);
2188 static clib_error_t *
2189 quic_plugin_crypto_command_fn (vlib_main_t * vm,
2190 unformat_input_t * input,
2191 vlib_cli_command_t * cmd)
2193 quic_main_t *qm = &quic_main;
2194 if (unformat_check_input (input) == UNFORMAT_END_OF_INPUT)
2195 return clib_error_return (0, "unknown input '%U'",
2196 format_unformat_error, input);
2197 if (unformat (input, "vpp"))
2198 qm->default_cipher = CRYPTO_ENGINE_VPP;
2199 else if (unformat (input, "picotls"))
2200 qm->default_cipher = CRYPTO_ENGINE_PICOTLS;
2202 return clib_error_return (0, "unknown input '%U'",
2203 format_unformat_error, input);
2207 u64 quic_fifosize = 0;
2208 static clib_error_t *
2209 quic_plugin_set_fifo_size_command_fn (vlib_main_t * vm,
2210 unformat_input_t * input,
2211 vlib_cli_command_t * cmd)
2213 unformat_input_t _line_input, *line_input = &_line_input;
2214 if (!unformat_user (input, unformat_line_input, line_input))
2217 while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
2220 (line_input, "%U", unformat_data_size, &quic_main.udp_fifo_size))
2221 quic_update_fifo_size ();
2223 return clib_error_return (0, "unknown input '%U'",
2224 format_unformat_error, line_input);
2231 quic_format_ctx_stat (u8 * s, va_list * args)
2233 quic_ctx_t *ctx = va_arg (*args, quic_ctx_t *);
2234 quicly_stats_t quicly_stats;
2236 quicly_get_stats (ctx->conn, &quicly_stats);
2238 s = format (s, "\n\rQUIC conn stats \n\r");
2241 format (s, "RTT: min:%d, smoothed:%d, variance:%d, latest:%d \n\r",
2242 quicly_stats.rtt.minimum, quicly_stats.rtt.smoothed,
2243 quicly_stats.rtt.variance, quicly_stats.rtt.latest);
2244 s = format (s, "Packet loss:%d \n\r", quicly_stats.num_packets.lost);
2249 static clib_error_t *
2250 quic_plugin_showstats_command_fn (vlib_main_t * vm,
2251 unformat_input_t * input,
2252 vlib_cli_command_t * cmd)
2254 quic_main_t *qm = &quic_main;
2255 quic_ctx_t *ctx = NULL;
2256 u32 num_workers = vlib_num_workers ();
2258 for (int i = 0; i < num_workers + 1; i++)
2261 pool_foreach (ctx, qm->ctx_pool[i],
2263 if(!(ctx->flags & QUIC_F_IS_LISTENER) && !(ctx->flags & QUIC_F_IS_STREAM))
2264 vlib_cli_output (vm, "%U", quic_format_ctx_stat, ctx);
2272 VLIB_CLI_COMMAND (quic_plugin_crypto_command, static) =
2274 .path = "quic set crypto api",
2275 .short_help = "quic set crypto api [picotls, vpp]",
2276 .function = quic_plugin_crypto_command_fn,
2278 VLIB_CLI_COMMAND(quic_plugin_set_fifo_size_command, static)=
2280 .path = "quic set fifo-size",
2281 .short_help = "quic set fifo-size N[Kb|Mb|GB] (default 64K)",
2282 .function = quic_plugin_set_fifo_size_command_fn,
2284 VLIB_CLI_COMMAND(quic_plugin_stats_command, static)=
2286 .path = "show quic stats",
2287 .short_help = "show quic stats",
2288 .function = quic_plugin_showstats_command_fn,
2290 VLIB_PLUGIN_REGISTER () =
2292 .version = VPP_BUILD_VER,
2293 .description = "Quic transport protocol",
2294 .default_disabled = 1,
2298 static clib_error_t *
2299 quic_config_fn (vlib_main_t * vm, unformat_input_t * input)
2301 quic_main.udp_fifo_size = QUIC_DEFAULT_FIFO_SIZE;
2302 quic_main.udp_fifo_prealloc = 0;
2304 while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
2307 (input, "fifo-size %U", unformat_data_size,
2308 &quic_main.udp_fifo_size))
2312 (input, "fifo-prealloc %u", &quic_main.udp_fifo_prealloc))
2315 return clib_error_return (0, "unknown input '%U'",
2316 format_unformat_error, input);
2322 VLIB_EARLY_CONFIG_FUNCTION (quic_config_fn, "quic");
2325 quic_node_fn (vlib_main_t * vm, vlib_node_runtime_t * node,
2326 vlib_frame_t * frame)
2332 VLIB_REGISTER_NODE (quic_input_node) =
2334 .function = quic_node_fn,
2335 .name = "quic-input",
2336 .vector_size = sizeof (u32),
2337 .type = VLIB_NODE_TYPE_INTERNAL,
2338 .n_errors = ARRAY_LEN (quic_error_strings),
2339 .error_strings = quic_error_strings,
2344 * fd.io coding-style-patch-verification: ON
2347 * eval: (c-set-style "gnu")