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>
34 static quic_main_t quic_main;
35 static void quic_update_timer (quic_ctx_t * ctx);
38 quic_ctx_alloc (u32 thread_index)
40 quic_main_t *qm = &quic_main;
43 pool_get (qm->ctx_pool[thread_index], ctx);
45 memset (ctx, 0, sizeof (quic_ctx_t));
46 ctx->c_thread_index = thread_index;
47 QUIC_DBG (3, "Allocated quic_ctx %u on thread %u",
48 ctx - qm->ctx_pool[thread_index], thread_index);
49 return ctx - qm->ctx_pool[thread_index];
53 quic_ctx_free (quic_ctx_t * ctx)
55 QUIC_DBG (2, "Free ctx %u", ctx->c_c_index);
56 u32 thread_index = ctx->c_thread_index;
58 memset (ctx, 0xfb, sizeof (*ctx));
59 pool_put (quic_main.ctx_pool[thread_index], ctx);
63 quic_ctx_get (u32 ctx_index, u32 thread_index)
65 return pool_elt_at_index (quic_main.ctx_pool[thread_index], ctx_index);
69 quic_ctx_get_if_valid (u32 ctx_index, u32 thread_index)
71 if (pool_is_free_index (quic_main.ctx_pool[thread_index], ctx_index))
73 return pool_elt_at_index (quic_main.ctx_pool[thread_index], ctx_index);
77 quic_get_conn_ctx (quicly_conn_t * conn)
80 conn_data = (u64) * quicly_get_data (conn);
81 return quic_ctx_get (conn_data & UINT32_MAX, conn_data >> 32);
85 quic_store_conn_ctx (quicly_conn_t * conn, quic_ctx_t * ctx)
87 *quicly_get_data (conn) =
88 (void *) (((u64) ctx->c_thread_index) << 32 | (u64) ctx->c_c_index);
92 quic_ctx_is_stream (quic_ctx_t * ctx)
94 return (ctx->flags & QUIC_F_IS_STREAM);
98 quic_ctx_is_listener (quic_ctx_t * ctx)
100 return (ctx->flags & QUIC_F_IS_LISTENER);
104 get_stream_session_from_stream (quicly_stream_t * stream)
107 quic_stream_data_t *stream_data;
109 stream_data = (quic_stream_data_t *) stream->data;
110 ctx = quic_ctx_get (stream_data->ctx_id, stream_data->thread_index);
111 return session_get (ctx->c_s_index, stream_data->thread_index);
115 quic_make_connection_key (clib_bihash_kv_16_8_t * kv,
116 const quicly_cid_plaintext_t * id)
118 kv->key[0] = ((u64) id->master_id) << 32 | (u64) id->thread_id;
119 kv->key[1] = id->node_id;
123 quic_sendable_packet_count (session_t * udp_session)
126 u32 packet_size = QUIC_MAX_PACKET_SIZE + SESSION_CONN_HDR_LEN;
127 max_enqueue = svm_fifo_max_enqueue (udp_session->tx_fifo);
128 return clib_min (max_enqueue / packet_size, QUIC_SEND_PACKET_VEC_SIZE);
131 static quicly_context_t *
132 quic_get_quicly_ctx_from_ctx (quic_ctx_t * ctx)
134 app_worker_t *app_wrk;
136 app_wrk = app_worker_get_if_valid (ctx->parent_app_wrk_id);
139 app = application_get (app_wrk->app_index);
140 return (quicly_context_t *) app->quicly_ctx;
143 static quicly_context_t *
144 quic_get_quicly_ctx_from_udp (u64 udp_session_handle)
146 session_t *udp_session;
148 udp_session = session_get_from_handle (udp_session_handle);
149 app = application_get (udp_session->opaque);
150 return (quicly_context_t *) app->quicly_ctx;
154 quic_ack_rx_data (session_t * stream_session)
159 quicly_stream_t *stream;
160 quic_stream_data_t *stream_data;
163 quic_ctx_get (stream_session->connection_index,
164 stream_session->thread_index);
165 ASSERT (quic_ctx_is_stream (sctx));
166 stream = sctx->stream;
167 stream_data = (quic_stream_data_t *) stream->data;
169 f = stream_session->rx_fifo;
170 max_deq = svm_fifo_max_dequeue (f);
172 ASSERT (stream_data->app_rx_data_len >= max_deq);
173 quicly_stream_sync_recvbuf (stream, stream_data->app_rx_data_len - max_deq);
174 QUIC_DBG (3, "Acking %u bytes", stream_data->app_rx_data_len - max_deq);
175 stream_data->app_rx_data_len = max_deq;
179 quic_disconnect_transport (quic_ctx_t * ctx)
181 QUIC_DBG (2, "Disconnecting transport 0x%lx", ctx->udp_session_handle);
182 vnet_disconnect_args_t a = {
183 .handle = ctx->udp_session_handle,
184 .app_index = quic_main.app_index,
187 if (vnet_disconnect_session (&a))
188 clib_warning ("UDP session 0x%lx disconnect errored",
189 ctx->udp_session_handle);
193 quic_connection_delete (quic_ctx_t * ctx)
195 tw_timer_wheel_1t_3w_1024sl_ov_t *tw;
196 clib_bihash_kv_16_8_t kv;
199 QUIC_DBG (2, "Deleting connection %u", ctx->c_c_index);
201 ASSERT (!quic_ctx_is_stream (ctx));
204 if (ctx->timer_handle != QUIC_TIMER_HANDLE_INVALID)
206 tw = &quic_main.wrk_ctx[ctx->c_thread_index].timer_wheel;
207 tw_timer_stop_1t_3w_1024sl_ov (tw, ctx->timer_handle);
210 /* Delete the connection from the connection map */
212 quic_make_connection_key (&kv, quicly_get_master_id (conn));
213 QUIC_DBG (2, "Deleting conn with id %lu %lu from map", kv.key[0],
215 clib_bihash_add_del_16_8 (&quic_main.connection_hash, &kv, 0 /* is_add */ );
217 quic_disconnect_transport (ctx);
220 quicly_free (ctx->conn);
223 session_transport_delete_notify (&ctx->connection);
228 * Called when quicly return an error
229 * This function interacts tightly with quic_proto_on_close
232 quic_connection_closed (quic_ctx_t * ctx)
234 QUIC_DBG (2, "QUIC connection %u/%u closed", ctx->c_thread_index,
237 /* TODO if connection is not established, just delete the session? */
238 /* Actually should send connect or accept error */
240 switch (ctx->conn_state)
242 case QUIC_CONN_STATE_READY:
243 /* Error on an opened connection (timeout...)
244 This puts the session in closing state, we should receive a notification
245 when the app has closed its session */
246 session_transport_reset_notify (&ctx->connection);
247 /* This ensures we delete the connection when the app confirms the close */
248 ctx->conn_state = QUIC_CONN_STATE_PASSIVE_CLOSING_QUIC_CLOSED;
250 case QUIC_CONN_STATE_PASSIVE_CLOSING:
251 ctx->conn_state = QUIC_CONN_STATE_PASSIVE_CLOSING_QUIC_CLOSED;
252 /* quic_proto_on_close will eventually be called when the app confirms the close
253 , we delete the connection at that point */
255 case QUIC_CONN_STATE_PASSIVE_CLOSING_APP_CLOSED:
256 /* App already confirmed close, we can delete the connection */
257 session_transport_delete_notify (&ctx->connection);
258 quic_connection_delete (ctx);
260 case QUIC_CONN_STATE_PASSIVE_CLOSING_QUIC_CLOSED:
263 case QUIC_CONN_STATE_ACTIVE_CLOSING:
264 session_transport_delete_notify (&ctx->connection);
265 quic_connection_delete (ctx);
274 quic_send_datagram (session_t * udp_session, quicly_datagram_t * packet)
277 session_dgram_hdr_t hdr;
280 transport_connection_t *tc;
282 len = packet->data.len;
283 f = udp_session->tx_fifo;
284 tc = session_get_transport (udp_session);
285 max_enqueue = svm_fifo_max_enqueue (f);
286 if (max_enqueue < SESSION_CONN_HDR_LEN + len)
288 QUIC_DBG (1, "Too much data to send, max_enqueue %u, len %u",
289 max_enqueue, len + SESSION_CONN_HDR_LEN);
290 return QUIC_ERROR_FULL_FIFO;
293 /* Build packet header for fifo */
294 hdr.data_length = len;
296 hdr.is_ip4 = tc->is_ip4;
297 clib_memcpy (&hdr.lcl_ip, &tc->lcl_ip, sizeof (ip46_address_t));
298 hdr.lcl_port = tc->lcl_port;
300 /* Read dest address from quicly-provided sockaddr */
303 ASSERT (packet->sa.sa_family == AF_INET);
304 struct sockaddr_in *sa4 = (struct sockaddr_in *) &packet->sa;
305 hdr.rmt_port = sa4->sin_port;
306 hdr.rmt_ip.ip4.as_u32 = sa4->sin_addr.s_addr;
310 ASSERT (packet->sa.sa_family == AF_INET6);
311 struct sockaddr_in6 *sa6 = (struct sockaddr_in6 *) &packet->sa;
312 hdr.rmt_port = sa6->sin6_port;
313 clib_memcpy (&hdr.rmt_ip.ip6, &sa6->sin6_addr, 16);
316 ret = svm_fifo_enqueue (f, sizeof (hdr), (u8 *) & hdr);
317 if (ret != sizeof (hdr))
319 QUIC_DBG (1, "Not enough space to enqueue header");
320 return QUIC_ERROR_FULL_FIFO;
322 ret = svm_fifo_enqueue (f, len, packet->data.base);
325 QUIC_DBG (1, "Not enough space to enqueue payload");
326 return QUIC_ERROR_FULL_FIFO;
332 quic_send_packets (quic_ctx_t * ctx)
334 quicly_datagram_t *packets[QUIC_SEND_PACKET_VEC_SIZE];
335 session_t *udp_session;
337 size_t num_packets, i, max_packets;
338 quicly_packet_allocator_t *pa;
339 quicly_context_t *quicly_context;
342 /* We have sctx, get qctx */
343 if (quic_ctx_is_stream (ctx))
344 ctx = quic_ctx_get (ctx->quic_connection_ctx_id, ctx->c_thread_index);
346 ASSERT (!quic_ctx_is_stream (ctx));
348 udp_session = session_get_from_handle_if_valid (ctx->udp_session_handle);
357 /* TODO : quicly can assert it can send min_packets up to 2 */
358 if (quic_sendable_packet_count (udp_session) < 2)
361 quicly_context = quic_get_quicly_ctx_from_ctx (ctx);
364 clib_warning ("Tried to send packets on non existing app worker %u",
365 ctx->parent_app_wrk_id);
366 quic_connection_delete (ctx);
369 pa = quicly_context->packet_allocator;
372 max_packets = quic_sendable_packet_count (udp_session);
375 num_packets = max_packets;
376 if ((err = quicly_send (conn, packets, &num_packets)))
379 for (i = 0; i != num_packets; ++i)
381 if ((err = quic_send_datagram (udp_session, packets[i])))
384 pa->free_packet (pa, packets[i]);
387 while (num_packets > 0 && num_packets == max_packets);
390 if (svm_fifo_set_event (udp_session->tx_fifo))
392 session_send_io_evt_to_thread (udp_session->tx_fifo,
394 clib_warning ("Event enqueue errored %d", err);
396 QUIC_DBG (3, "%u[TX] %u[RX]", svm_fifo_max_dequeue (udp_session->tx_fifo),
397 svm_fifo_max_dequeue (udp_session->rx_fifo));
398 quic_update_timer (ctx);
402 if (err && err != QUICLY_ERROR_PACKET_IGNORED
403 && err != QUICLY_ERROR_FREE_CONNECTION)
404 clib_warning ("Quic error '%U'.", quic_format_err, err);
405 quic_connection_closed (ctx);
409 /*****************************************************************************
411 * START QUICLY CALLBACKS
412 * Called from QUIC lib
414 *****************************************************************************/
417 quic_on_stream_destroy (quicly_stream_t * stream, int err)
419 quic_stream_data_t *stream_data = (quic_stream_data_t *) stream->data;
421 quic_ctx_get (stream_data->ctx_id, stream_data->thread_index);
422 session_t *stream_session =
423 session_get (sctx->c_s_index, sctx->c_thread_index);
424 QUIC_DBG (2, "DESTROYED_STREAM: session 0x%lx (%U)",
425 session_handle (stream_session), quic_format_err, err);
427 stream_session->session_state = SESSION_STATE_CLOSED;
428 session_transport_delete_notify (&sctx->connection);
430 quic_ctx_free (sctx);
435 quic_on_stop_sending (quicly_stream_t * stream, int err)
438 quic_stream_data_t *stream_data = (quic_stream_data_t *) stream->data;
440 quic_ctx_get (stream_data->ctx_id, stream_data->thread_index);
441 session_t *stream_session =
442 session_get (sctx->c_s_index, sctx->c_thread_index);
443 clib_warning ("(NOT IMPLEMENTD) STOP_SENDING: session 0x%lx (%U)",
444 session_handle (stream_session), quic_format_err, err);
446 /* TODO : handle STOP_SENDING */
451 quic_on_receive_reset (quicly_stream_t * stream, int err)
453 quic_stream_data_t *stream_data = (quic_stream_data_t *) stream->data;
455 quic_ctx_get (stream_data->ctx_id, stream_data->thread_index);
457 session_t *stream_session =
458 session_get (sctx->c_s_index, sctx->c_thread_index);
459 clib_warning ("RESET_STREAM: session 0x%lx (%U)",
460 session_handle (stream_session), quic_format_err, err);
462 session_transport_closing_notify (&sctx->connection);
467 quic_on_receive (quicly_stream_t * stream, size_t off, const void *src,
470 QUIC_DBG (3, "received data: %lu bytes, offset %lu", len, off);
473 session_t *stream_session;
474 app_worker_t *app_wrk;
476 quic_stream_data_t *stream_data;
479 stream_data = (quic_stream_data_t *) stream->data;
480 sctx = quic_ctx_get (stream_data->ctx_id, stream_data->thread_index);
481 stream_session = session_get (sctx->c_s_index, stream_data->thread_index);
482 f = stream_session->rx_fifo;
484 max_enq = svm_fifo_max_enqueue_prod (f);
485 QUIC_DBG (3, "Enqueuing %u at off %u in %u space", len, off, max_enq);
486 if (off - stream_data->app_rx_data_len + len > max_enq)
488 QUIC_DBG (1, "Error RX fifo is full");
491 if (off == stream_data->app_rx_data_len)
493 /* Streams live on the same thread so (f, stream_data) should stay consistent */
494 rlen = svm_fifo_enqueue (f, len, (u8 *) src);
495 stream_data->app_rx_data_len += rlen;
496 ASSERT (rlen >= len);
497 app_wrk = app_worker_get_if_valid (stream_session->app_wrk_index);
498 if (PREDICT_TRUE (app_wrk != 0))
499 app_worker_lock_and_send_event (app_wrk, stream_session,
501 quic_ack_rx_data (stream_session);
506 svm_fifo_enqueue_with_offset (f, off - stream_data->app_rx_data_len,
514 quic_fifo_egress_shift (quicly_stream_t * stream, size_t delta)
516 session_t *stream_session;
520 stream_session = get_stream_session_from_stream (stream);
521 f = stream_session->tx_fifo;
523 rv = svm_fifo_dequeue_drop (f, delta);
524 ASSERT (rv == delta);
525 quicly_stream_sync_sendbuf (stream, 0);
529 quic_fifo_egress_emit (quicly_stream_t * stream, size_t off, void *dst,
530 size_t * len, int *wrote_all)
532 session_t *stream_session;
534 u32 deq_max, first_deq, max_rd_chunk, rem_offset;
536 stream_session = get_stream_session_from_stream (stream);
537 f = stream_session->tx_fifo;
539 QUIC_DBG (3, "Emitting %u, offset %u", *len, off);
541 deq_max = svm_fifo_max_dequeue_cons (f);
542 ASSERT (off <= deq_max);
543 if (off + *len < deq_max)
550 *len = deq_max - off;
551 QUIC_DBG (3, "Wrote ALL, %u", *len);
554 /* TODO, use something like : return svm_fifo_peek (f, off, *len, dst); */
555 max_rd_chunk = svm_fifo_max_read_chunk (f);
558 if (off < max_rd_chunk)
560 first_deq = clib_min (*len, max_rd_chunk - off);
561 clib_memcpy_fast (dst, svm_fifo_head (f) + off, first_deq);
564 if (max_rd_chunk < off + *len)
566 rem_offset = max_rd_chunk < off ? off - max_rd_chunk : 0;
567 clib_memcpy_fast (dst + first_deq, f->head_chunk->data + rem_offset,
574 static const quicly_stream_callbacks_t quic_stream_callbacks = {
575 .on_destroy = quic_on_stream_destroy,
576 .on_send_shift = quic_fifo_egress_shift,
577 .on_send_emit = quic_fifo_egress_emit,
578 .on_send_stop = quic_on_stop_sending,
579 .on_receive = quic_on_receive,
580 .on_receive_reset = quic_on_receive_reset
584 quic_accept_stream (void *s)
586 quicly_stream_t *stream = (quicly_stream_t *) s;
587 session_t *stream_session, *quic_session;
588 quic_stream_data_t *stream_data;
589 app_worker_t *app_wrk;
590 quic_ctx_t *qctx, *sctx;
594 sctx_id = quic_ctx_alloc (vlib_get_thread_index ());
596 qctx = quic_get_conn_ctx (stream->conn);
598 stream_session = session_alloc (qctx->c_thread_index);
599 QUIC_DBG (2, "ACCEPTED stream_session 0x%lx ctx %u",
600 session_handle (stream_session), sctx_id);
601 sctx = quic_ctx_get (sctx_id, qctx->c_thread_index);
602 sctx->parent_app_wrk_id = qctx->parent_app_wrk_id;
603 sctx->parent_app_id = qctx->parent_app_id;
604 sctx->quic_connection_ctx_id = qctx->c_c_index;
605 sctx->c_c_index = sctx_id;
606 sctx->c_s_index = stream_session->session_index;
607 sctx->stream = stream;
608 sctx->c_flags |= TRANSPORT_CONNECTION_F_NO_LOOKUP;
609 sctx->flags |= QUIC_F_IS_STREAM;
611 stream_data = (quic_stream_data_t *) stream->data;
612 stream_data->ctx_id = sctx_id;
613 stream_data->thread_index = sctx->c_thread_index;
614 stream_data->app_rx_data_len = 0;
616 sctx->c_s_index = stream_session->session_index;
617 stream_session->session_state = SESSION_STATE_CREATED;
618 stream_session->app_wrk_index = sctx->parent_app_wrk_id;
619 stream_session->connection_index = sctx->c_c_index;
620 stream_session->session_type =
621 session_type_from_proto_and_ip (TRANSPORT_PROTO_QUIC, qctx->udp_is_ip4);
622 quic_session = session_get (qctx->c_s_index, qctx->c_thread_index);
623 stream_session->listener_handle = listen_session_get_handle (quic_session);
625 app_wrk = app_worker_get (stream_session->app_wrk_index);
626 if ((rv = app_worker_init_connected (app_wrk, stream_session)))
628 QUIC_DBG (1, "failed to allocate fifos");
629 session_free (stream_session);
630 quicly_reset_stream (stream, QUIC_APP_ALLOCATION_ERROR);
633 svm_fifo_add_want_deq_ntf (stream_session->rx_fifo,
634 SVM_FIFO_WANT_DEQ_NOTIF_IF_FULL |
635 SVM_FIFO_WANT_DEQ_NOTIF_IF_EMPTY);
637 if ((rv = app_worker_accept_notify (app_wrk, stream_session)))
639 QUIC_DBG (1, "failed to notify accept worker app");
640 session_free_w_fifos (stream_session);
641 quicly_reset_stream (stream, QUIC_APP_ACCEPT_NOTIFY_ERROR);
647 quic_on_stream_open (quicly_stream_open_t * self, quicly_stream_t * stream)
649 QUIC_DBG (2, "on_stream_open called");
650 stream->data = malloc (sizeof (quic_stream_data_t));
651 stream->callbacks = &quic_stream_callbacks;
652 /* Notify accept on parent qsession, but only if this is not a locally
653 * initiated stream */
654 if (!quicly_stream_is_self_initiated (stream))
656 quic_accept_stream (stream);
662 quic_on_closed_by_peer (quicly_closed_by_peer_t * self, quicly_conn_t * conn,
663 int code, uint64_t frame_type,
664 const char *reason, size_t reason_len)
666 quic_ctx_t *ctx = quic_get_conn_ctx (conn);
668 session_t *quic_session = session_get (ctx->c_s_index, ctx->c_thread_index);
669 clib_warning ("Session 0x%lx closed by peer (%U) %.*s ",
670 session_handle (quic_session), quic_format_err, code,
673 ctx->conn_state = QUIC_CONN_STATE_PASSIVE_CLOSING;
674 session_transport_closing_notify (&ctx->connection);
677 static quicly_stream_open_t on_stream_open = { &quic_on_stream_open };
678 static quicly_closed_by_peer_t on_closed_by_peer =
679 { &quic_on_closed_by_peer };
682 /*****************************************************************************
684 * END QUICLY CALLBACKS
686 *****************************************************************************/
688 /*****************************************************************************
690 * BEGIN TIMERS HANDLING
692 *****************************************************************************/
695 quic_get_thread_time (u8 thread_index)
697 return quic_main.wrk_ctx[thread_index].time_now;
701 quic_get_time (quicly_now_t * self)
703 u8 thread_index = vlib_get_thread_index ();
704 return quic_get_thread_time (thread_index);
707 static quicly_now_t quicly_vpp_now_cb = { quic_get_time };
710 quic_set_time_now (u32 thread_index)
712 vlib_main_t *vlib_main = vlib_get_main ();
713 f64 time = vlib_time_now (vlib_main);
714 quic_main.wrk_ctx[thread_index].time_now = (int64_t) (time * 1000.f);
715 return quic_main.wrk_ctx[thread_index].time_now;
718 /* Transport proto callback */
720 quic_update_time (f64 now, u8 thread_index)
722 tw_timer_wheel_1t_3w_1024sl_ov_t *tw;
724 tw = &quic_main.wrk_ctx[thread_index].timer_wheel;
725 quic_set_time_now (thread_index);
726 tw_timer_expire_timers_1t_3w_1024sl_ov (tw, now);
730 quic_timer_expired (u32 conn_index)
733 QUIC_DBG (4, "Timer expired for conn %u at %ld", conn_index,
734 quic_get_time (NULL));
735 ctx = quic_ctx_get (conn_index, vlib_get_thread_index ());
736 ctx->timer_handle = QUIC_TIMER_HANDLE_INVALID;
737 quic_send_packets (ctx);
741 quic_update_timer (quic_ctx_t * ctx)
743 tw_timer_wheel_1t_3w_1024sl_ov_t *tw;
744 int64_t next_timeout, next_interval;
745 session_t *quic_session;
747 /* This timeout is in ms which is the unit of our timer */
748 next_timeout = quicly_get_first_timeout (ctx->conn);
749 next_interval = next_timeout - quic_get_time (NULL);
751 if (next_timeout == 0 || next_interval <= 0)
753 if (ctx->c_s_index == QUIC_SESSION_INVALID)
759 quic_session = session_get (ctx->c_s_index, ctx->c_thread_index);
760 if (svm_fifo_set_event (quic_session->tx_fifo))
761 session_send_io_evt_to_thread_custom (quic_session,
762 quic_session->thread_index,
763 SESSION_IO_EVT_BUILTIN_TX);
768 tw = &quic_main.wrk_ctx[vlib_get_thread_index ()].timer_wheel;
770 QUIC_DBG (4, "Timer set to %ld (int %ld) for ctx %u", next_timeout,
771 next_interval, ctx->c_c_index);
773 if (ctx->timer_handle == QUIC_TIMER_HANDLE_INVALID)
775 if (next_timeout == INT64_MAX)
777 QUIC_DBG (4, "timer for ctx %u already stopped", ctx->c_c_index);
781 tw_timer_start_1t_3w_1024sl_ov (tw, ctx->c_c_index, 0, next_interval);
785 if (next_timeout == INT64_MAX)
787 tw_timer_stop_1t_3w_1024sl_ov (tw, ctx->timer_handle);
788 ctx->timer_handle = QUIC_TIMER_HANDLE_INVALID;
789 QUIC_DBG (4, "Stopping timer for ctx %u", ctx->c_c_index);
792 tw_timer_update_1t_3w_1024sl_ov (tw, ctx->timer_handle,
799 quic_expired_timers_dispatch (u32 * expired_timers)
803 for (i = 0; i < vec_len (expired_timers); i++)
805 quic_timer_expired (expired_timers[i]);
809 /*****************************************************************************
811 * END TIMERS HANDLING
813 *****************************************************************************/
816 quic_encrypt_ticket_cb (ptls_encrypt_ticket_t * _self, ptls_t * tls,
817 int is_encrypt, ptls_buffer_t * dst, ptls_iovec_t src)
819 quic_session_cache_t *self = (void *) _self;
825 /* replace the cached entry along with a newly generated session id */
826 free (self->data.base);
827 if ((self->data.base = malloc (src.len)) == NULL)
828 return PTLS_ERROR_NO_MEMORY;
830 ptls_get_context (tls)->random_bytes (self->id, sizeof (self->id));
831 memcpy (self->data.base, src.base, src.len);
832 self->data.len = src.len;
834 /* store the session id in buffer */
835 if ((ret = ptls_buffer_reserve (dst, sizeof (self->id))) != 0)
837 memcpy (dst->base + dst->off, self->id, sizeof (self->id));
838 dst->off += sizeof (self->id);
844 /* check if session id is the one stored in cache */
845 if (src.len != sizeof (self->id))
846 return PTLS_ERROR_SESSION_NOT_FOUND;
847 if (memcmp (self->id, src.base, sizeof (self->id)) != 0)
848 return PTLS_ERROR_SESSION_NOT_FOUND;
850 /* return the cached value */
851 if ((ret = ptls_buffer_reserve (dst, self->data.len)) != 0)
853 memcpy (dst->base + dst->off, self->data.base, self->data.len);
854 dst->off += self->data.len;
860 typedef struct quicly_ctx_data_
862 quicly_context_t quicly_ctx;
864 ptls_context_t ptls_ctx;
868 quic_store_quicly_ctx (application_t * app, u8 is_client)
870 quic_main_t *qm = &quic_main;
871 quicly_context_t *quicly_ctx;
872 ptls_iovec_t key_vec;
876 quicly_ctx_data_t *quicly_ctx_data =
877 clib_mem_alloc (sizeof (quicly_ctx_data_t));
878 clib_memset (quicly_ctx_data, 0, sizeof (*quicly_ctx_data)); /* picotls depends on this */
879 quicly_ctx = &quicly_ctx_data->quicly_ctx;
880 ptls_context_t *ptls_ctx = &quicly_ctx_data->ptls_ctx;
881 ptls_ctx->random_bytes = ptls_openssl_random_bytes;
882 ptls_ctx->get_time = &ptls_get_time;
883 ptls_ctx->key_exchanges = ptls_openssl_key_exchanges;
884 ptls_ctx->cipher_suites = qm->quic_ciphers[qm->default_cipher];
885 ptls_ctx->certificates.list = NULL;
886 ptls_ctx->certificates.count = 0;
887 ptls_ctx->esni = NULL;
888 ptls_ctx->on_client_hello = NULL;
889 ptls_ctx->emit_certificate = NULL;
890 ptls_ctx->sign_certificate = NULL;
891 ptls_ctx->verify_certificate = NULL;
892 ptls_ctx->ticket_lifetime = 86400;
893 ptls_ctx->max_early_data_size = 8192;
894 ptls_ctx->hkdf_label_prefix__obsolete = NULL;
895 ptls_ctx->require_dhe_on_psk = 1;
896 ptls_ctx->encrypt_ticket = &qm->session_cache.super;
898 app->quicly_ctx = (u64 *) quicly_ctx;
899 memcpy (quicly_ctx, &quicly_spec_context, sizeof (quicly_context_t));
901 quicly_ctx->max_packet_size = QUIC_MAX_PACKET_SIZE;
902 quicly_ctx->tls = ptls_ctx;
903 quicly_ctx->stream_open = &on_stream_open;
904 quicly_ctx->closed_by_peer = &on_closed_by_peer;
905 quicly_ctx->now = &quicly_vpp_now_cb;
906 quicly_amend_ptls_context (quicly_ctx->tls);
908 quicly_ctx->event_log.mask = 0; /* logs */
909 quicly_ctx->event_log.cb = quicly_new_default_event_logger (stderr);
911 quicly_ctx->transport_params.max_data = QUIC_INT_MAX;
912 quicly_ctx->transport_params.max_streams_uni = (uint64_t) 1 << 60;
913 quicly_ctx->transport_params.max_streams_bidi = (uint64_t) 1 << 60;
914 quicly_ctx->transport_params.max_stream_data.bidi_local = (QUIC_FIFO_SIZE - 1); /* max_enq is SIZE - 1 */
915 quicly_ctx->transport_params.max_stream_data.bidi_remote = (QUIC_FIFO_SIZE - 1); /* max_enq is SIZE - 1 */
916 quicly_ctx->transport_params.max_stream_data.uni = QUIC_INT_MAX;
918 quicly_ctx->tls->random_bytes (quicly_ctx_data->cid_key, 16);
919 quicly_ctx_data->cid_key[16] = 0;
921 ptls_iovec_init (quicly_ctx_data->cid_key,
922 strlen (quicly_ctx_data->cid_key));
923 quicly_ctx->cid_encryptor =
924 quicly_new_default_cid_encryptor (&ptls_openssl_bfecb,
925 &ptls_openssl_sha256, key_vec);
928 if (app->tls_key != NULL && app->tls_cert != NULL)
930 if (load_bio_private_key (quicly_ctx->tls, (char *) app->tls_key))
932 QUIC_DBG (1, "failed to read private key from app configuration\n");
934 if (load_bio_certificate_chain (quicly_ctx->tls,
935 (char *) app->tls_cert))
937 QUIC_DBG (1, "failed to load certificate\n");
942 /*****************************************************************************
944 * BEGIN TRANSPORT PROTO FUNCTIONS
946 *****************************************************************************/
949 quic_connect_new_stream (session_t * quic_session, u32 opaque)
951 uint64_t quic_session_handle;
952 session_t *stream_session;
953 quic_stream_data_t *stream_data;
954 quicly_stream_t *stream;
956 app_worker_t *app_wrk;
957 quic_ctx_t *qctx, *sctx;
961 /* Find base session to which the user want to attach a stream */
962 quic_session_handle = session_handle (quic_session);
963 QUIC_DBG (2, "Opening new stream (qsession %u)", quic_session_handle);
965 if (session_type_transport_proto (quic_session->session_type) !=
966 TRANSPORT_PROTO_QUIC)
968 QUIC_DBG (1, "received incompatible session");
972 app_wrk = app_worker_get_if_valid (quic_session->app_wrk_index);
975 QUIC_DBG (1, "Invalid app worker :(");
979 sctx_index = quic_ctx_alloc (quic_session->thread_index); /* Allocate before we get pointers */
980 sctx = quic_ctx_get (sctx_index, quic_session->thread_index);
982 quic_ctx_get (quic_session->connection_index, quic_session->thread_index);
983 if (quic_ctx_is_stream (qctx))
985 QUIC_DBG (1, "session is a stream");
986 quic_ctx_free (sctx);
990 sctx->parent_app_wrk_id = qctx->parent_app_wrk_id;
991 sctx->parent_app_id = qctx->parent_app_id;
992 sctx->quic_connection_ctx_id = qctx->c_c_index;
993 sctx->c_c_index = sctx_index;
994 sctx->c_flags |= TRANSPORT_CONNECTION_F_NO_LOOKUP;
995 sctx->flags |= QUIC_F_IS_STREAM;
999 if (!conn || !quicly_connection_is_ready (conn))
1002 if ((rv = quicly_open_stream (conn, &stream, 0 /* uni */ )))
1004 QUIC_DBG (2, "Stream open failed with %d", rv);
1007 sctx->stream = stream;
1009 QUIC_DBG (2, "Opened stream %d, creating session", stream->stream_id);
1011 stream_session = session_alloc (qctx->c_thread_index);
1012 QUIC_DBG (2, "Allocated stream_session 0x%lx ctx %u",
1013 session_handle (stream_session), sctx_index);
1014 stream_session->app_wrk_index = app_wrk->wrk_index;
1015 stream_session->connection_index = sctx_index;
1016 stream_session->listener_handle = quic_session_handle;
1017 stream_session->session_type =
1018 session_type_from_proto_and_ip (TRANSPORT_PROTO_QUIC, qctx->udp_is_ip4);
1020 sctx->c_s_index = stream_session->session_index;
1022 if (app_worker_init_connected (app_wrk, stream_session))
1024 QUIC_DBG (1, "failed to app_worker_init_connected");
1025 quicly_reset_stream (stream, QUIC_APP_ALLOCATION_ERROR);
1026 session_free_w_fifos (stream_session);
1027 quic_ctx_free (sctx);
1028 return app_worker_connect_notify (app_wrk, NULL, opaque);
1031 svm_fifo_add_want_deq_ntf (stream_session->rx_fifo,
1032 SVM_FIFO_WANT_DEQ_NOTIF_IF_FULL |
1033 SVM_FIFO_WANT_DEQ_NOTIF_IF_EMPTY);
1035 stream_session->session_state = SESSION_STATE_READY;
1036 if (app_worker_connect_notify (app_wrk, stream_session, opaque))
1038 QUIC_DBG (1, "failed to notify app");
1039 quicly_reset_stream (stream, QUIC_APP_CONNECT_NOTIFY_ERROR);
1040 session_free_w_fifos (stream_session);
1041 quic_ctx_free (sctx);
1044 stream_data = (quic_stream_data_t *) stream->data;
1045 stream_data->ctx_id = sctx->c_c_index;
1046 stream_data->thread_index = sctx->c_thread_index;
1047 stream_data->app_rx_data_len = 0;
1052 quic_connect_new_connection (session_endpoint_cfg_t * sep)
1054 vnet_connect_args_t _cargs = { {}, }, *cargs = &_cargs;
1055 quic_main_t *qm = &quic_main;
1057 app_worker_t *app_wrk;
1062 ctx_index = quic_ctx_alloc (vlib_get_thread_index ());
1063 ctx = quic_ctx_get (ctx_index, vlib_get_thread_index ());
1064 ctx->parent_app_wrk_id = sep->app_wrk_index;
1065 ctx->c_s_index = QUIC_SESSION_INVALID;
1066 ctx->c_c_index = ctx_index;
1067 ctx->udp_is_ip4 = sep->is_ip4;
1068 ctx->timer_handle = QUIC_TIMER_HANDLE_INVALID;
1069 ctx->conn_state = QUIC_CONN_STATE_HANDSHAKE;
1070 ctx->client_opaque = sep->opaque;
1071 ctx->c_flags |= TRANSPORT_CONNECTION_F_NO_LOOKUP;
1074 ctx->srv_hostname = format (0, "%v", sep->hostname);
1075 vec_terminate_c_string (ctx->srv_hostname);
1079 /* needed by quic for crypto + determining client / server */
1081 format (0, "%U", format_ip46_address, &sep->ip, sep->is_ip4);
1084 clib_memcpy (&cargs->sep, sep, sizeof (session_endpoint_cfg_t));
1085 cargs->sep.transport_proto = TRANSPORT_PROTO_UDPC;
1086 cargs->app_index = qm->app_index;
1087 cargs->api_context = ctx_index;
1089 app_wrk = app_worker_get (sep->app_wrk_index);
1090 app = application_get (app_wrk->app_index);
1091 ctx->parent_app_id = app_wrk->app_index;
1092 cargs->sep_ext.ns_index = app->ns_index;
1094 quic_store_quicly_ctx (app, 1 /* is client */ );
1096 if ((error = vnet_connect (cargs)))
1103 quic_connect (transport_endpoint_cfg_t * tep)
1105 QUIC_DBG (2, "Called quic_connect");
1106 session_endpoint_cfg_t *sep = (session_endpoint_cfg_t *) tep;
1107 session_t *quic_session;
1108 sep = (session_endpoint_cfg_t *) tep;
1110 quic_session = session_get_from_handle_if_valid (sep->parent_handle);
1112 return quic_connect_new_stream (quic_session, sep->opaque);
1114 return quic_connect_new_connection (sep);
1118 quic_proto_on_close (u32 ctx_index, u32 thread_index)
1120 quic_ctx_t *ctx = quic_ctx_get_if_valid (ctx_index, thread_index);
1124 session_t *stream_session =
1125 session_get (ctx->c_s_index, ctx->c_thread_index);
1126 clib_warning ("Closing session 0x%lx", session_handle (stream_session));
1128 if (quic_ctx_is_stream (ctx))
1130 quicly_stream_t *stream = ctx->stream;
1131 quicly_reset_stream (stream, QUIC_APP_ERROR_CLOSE_NOTIFY);
1132 quic_send_packets (ctx);
1136 switch (ctx->conn_state)
1138 case QUIC_CONN_STATE_READY:
1139 ctx->conn_state = QUIC_CONN_STATE_ACTIVE_CLOSING;
1140 quicly_conn_t *conn = ctx->conn;
1141 /* Start connection closing. Keep sending packets until quicly_send
1142 returns QUICLY_ERROR_FREE_CONNECTION */
1143 quicly_close (conn, QUIC_APP_ERROR_CLOSE_NOTIFY, "Closed by peer");
1144 /* This also causes all streams to be closed (and the cb called) */
1145 quic_send_packets (ctx);
1147 case QUIC_CONN_STATE_PASSIVE_CLOSING:
1148 ctx->conn_state = QUIC_CONN_STATE_PASSIVE_CLOSING_APP_CLOSED;
1149 /* send_packets will eventually return an error, we delete the conn at
1152 case QUIC_CONN_STATE_PASSIVE_CLOSING_QUIC_CLOSED:
1153 quic_connection_delete (ctx);
1156 QUIC_DBG (0, "BUG");
1162 quic_start_listen (u32 quic_listen_session_index, transport_endpoint_t * tep)
1164 vnet_listen_args_t _bargs, *args = &_bargs;
1165 quic_main_t *qm = &quic_main;
1166 session_handle_t udp_handle;
1167 session_endpoint_cfg_t *sep;
1168 session_t *udp_listen_session;
1169 app_worker_t *app_wrk;
1173 app_listener_t *app_listener;
1175 sep = (session_endpoint_cfg_t *) tep;
1176 app_wrk = app_worker_get (sep->app_wrk_index);
1177 /* We need to call this because we call app_worker_init_connected in
1178 * quic_accept_stream, which assumes the connect segment manager exists */
1179 app_worker_alloc_connects_segment_manager (app_wrk);
1180 app = application_get (app_wrk->app_index);
1181 QUIC_DBG (2, "Called quic_start_listen for app %d", app_wrk->app_index);
1183 quic_store_quicly_ctx (app, 0 /* is_client */ );
1185 sep->transport_proto = TRANSPORT_PROTO_UDPC;
1186 memset (args, 0, sizeof (*args));
1187 args->app_index = qm->app_index;
1188 args->sep_ext = *sep;
1189 args->sep_ext.ns_index = app->ns_index;
1190 if (vnet_listen (args))
1193 lctx_index = quic_ctx_alloc (0);
1194 udp_handle = args->handle;
1195 app_listener = app_listener_get_w_handle (udp_handle);
1196 udp_listen_session = app_listener_get_session (app_listener);
1197 udp_listen_session->opaque = lctx_index;
1199 lctx = quic_ctx_get (lctx_index, 0);
1200 lctx->flags |= QUIC_F_IS_LISTENER;
1202 clib_memcpy (&lctx->c_rmt_ip, &args->sep.peer.ip, sizeof (ip46_address_t));
1203 clib_memcpy (&lctx->c_lcl_ip, &args->sep.ip, sizeof (ip46_address_t));
1204 lctx->c_rmt_port = args->sep.peer.port;
1205 lctx->c_lcl_port = args->sep.port;
1206 lctx->c_is_ip4 = args->sep.is_ip4;
1207 lctx->c_fib_index = args->sep.fib_index;
1208 lctx->c_proto = TRANSPORT_PROTO_QUIC;
1209 lctx->parent_app_wrk_id = sep->app_wrk_index;
1210 lctx->parent_app_id = app_wrk->app_index;
1211 lctx->udp_session_handle = udp_handle;
1212 lctx->c_s_index = quic_listen_session_index;
1214 QUIC_DBG (2, "Listening UDP session 0x%lx",
1215 session_handle (udp_listen_session));
1216 QUIC_DBG (2, "Listening QUIC session 0x%lx", quic_listen_session_index);
1221 quic_stop_listen (u32 lctx_index)
1223 QUIC_DBG (2, "Called quic_stop_listen");
1225 lctx = quic_ctx_get (lctx_index, 0);
1226 ASSERT (quic_ctx_is_listener (lctx));
1227 vnet_unlisten_args_t a = {
1228 .handle = lctx->udp_session_handle,
1229 .app_index = quic_main.app_index,
1230 .wrk_map_index = 0 /* default wrk */
1232 if (vnet_unlisten (&a))
1233 clib_warning ("unlisten errored");
1235 /* TODO: crypto state cleanup */
1237 quic_ctx_free (lctx);
1241 static transport_connection_t *
1242 quic_connection_get (u32 ctx_index, u32 thread_index)
1245 ctx = quic_ctx_get (ctx_index, thread_index);
1246 return &ctx->connection;
1249 static transport_connection_t *
1250 quic_listener_get (u32 listener_index)
1252 QUIC_DBG (2, "Called quic_listener_get");
1254 ctx = quic_ctx_get (listener_index, 0);
1255 return &ctx->connection;
1259 format_quic_ctx (u8 * s, va_list * args)
1261 quic_ctx_t *ctx = va_arg (*args, quic_ctx_t *);
1262 u32 verbose = va_arg (*args, u32);
1267 str = format (str, "[#%d][Q] ", ctx->c_thread_index);
1269 if (quic_ctx_is_listener (ctx))
1270 str = format (str, "Listener, UDP %ld", ctx->udp_session_handle);
1271 else if (quic_ctx_is_stream (ctx))
1272 str = format (str, "Stream %ld conn %d",
1273 ctx->stream->stream_id, ctx->quic_connection_ctx_id);
1274 else /* connection */
1275 str = format (str, "Conn %d UDP %d", ctx->c_c_index,
1276 ctx->udp_session_handle);
1278 str = format (str, " app %d wrk %d", ctx->parent_app_id,
1279 ctx->parent_app_wrk_id);
1282 s = format (s, "%-50s%-15d", str, ctx->conn_state);
1284 s = format (s, "%s\n", str);
1290 format_quic_connection (u8 * s, va_list * args)
1292 u32 qc_index = va_arg (*args, u32);
1293 u32 thread_index = va_arg (*args, u32);
1294 u32 verbose = va_arg (*args, u32);
1295 quic_ctx_t *ctx = quic_ctx_get (qc_index, thread_index);
1296 s = format (s, "%U", format_quic_ctx, ctx, verbose);
1301 format_quic_half_open (u8 * s, va_list * args)
1303 u32 qc_index = va_arg (*args, u32);
1304 u32 thread_index = va_arg (*args, u32);
1305 quic_ctx_t *ctx = quic_ctx_get (qc_index, thread_index);
1307 format (s, "[#%d][Q] half-open app %u", thread_index, ctx->parent_app_id);
1313 format_quic_listener (u8 * s, va_list * args)
1315 u32 tci = va_arg (*args, u32);
1316 u32 thread_index = va_arg (*args, u32);
1317 u32 verbose = va_arg (*args, u32);
1318 quic_ctx_t *ctx = quic_ctx_get (tci, thread_index);
1319 s = format (s, "%U", format_quic_ctx, ctx, verbose);
1323 /*****************************************************************************
1324 * END TRANSPORT PROTO FUNCTIONS
1326 * START SESSION CALLBACKS
1327 * Called from UDP layer
1328 *****************************************************************************/
1331 quic_build_sockaddr (struct sockaddr *sa, socklen_t * salen,
1332 ip46_address_t * addr, u16 port, u8 is_ip4)
1336 struct sockaddr_in *sa4 = (struct sockaddr_in *) sa;
1337 sa4->sin_family = AF_INET;
1338 sa4->sin_port = port;
1339 sa4->sin_addr.s_addr = addr->ip4.as_u32;
1340 *salen = sizeof (struct sockaddr_in);
1344 struct sockaddr_in6 *sa6 = (struct sockaddr_in6 *) sa;
1345 sa6->sin6_family = AF_INET6;
1346 sa6->sin6_port = port;
1347 clib_memcpy (&sa6->sin6_addr, &addr->ip6, 16);
1348 *salen = sizeof (struct sockaddr_in6);
1353 quic_on_client_connected (quic_ctx_t * ctx)
1355 session_t *quic_session;
1356 app_worker_t *app_wrk;
1357 u32 ctx_id = ctx->c_c_index;
1358 u32 thread_index = ctx->c_thread_index;
1361 app_wrk = app_worker_get_if_valid (ctx->parent_app_wrk_id);
1364 quic_disconnect_transport (ctx);
1368 quic_session = session_alloc (thread_index);
1370 QUIC_DBG (2, "Allocated quic session 0x%lx", session_handle (quic_session));
1371 ctx->c_s_index = quic_session->session_index;
1372 quic_session->app_wrk_index = ctx->parent_app_wrk_id;
1373 quic_session->connection_index = ctx->c_c_index;
1374 quic_session->listener_handle = SESSION_INVALID_HANDLE;
1375 quic_session->session_type =
1376 session_type_from_proto_and_ip (TRANSPORT_PROTO_QUIC, ctx->udp_is_ip4);
1378 if (app_worker_init_connected (app_wrk, quic_session))
1380 QUIC_DBG (1, "failed to app_worker_init_connected");
1381 quic_proto_on_close (ctx_id, thread_index);
1382 return app_worker_connect_notify (app_wrk, NULL, ctx->client_opaque);
1385 quic_session->session_state = SESSION_STATE_CONNECTING;
1386 if ((rv = app_worker_connect_notify (app_wrk, quic_session,
1387 ctx->client_opaque)))
1389 QUIC_DBG (1, "failed to notify app %d", rv);
1390 quic_proto_on_close (ctx_id, thread_index);
1394 /* If the app opens a stream in its callback it may invalidate ctx */
1395 ctx = quic_ctx_get (ctx_id, thread_index);
1396 quic_session->session_state = SESSION_STATE_LISTENING;
1402 quic_receive_connection (void *arg)
1404 u32 new_ctx_id, thread_index = vlib_get_thread_index ();
1405 quic_ctx_t *temp_ctx, *new_ctx;
1406 clib_bihash_kv_16_8_t kv;
1407 quicly_conn_t *conn;
1408 session_t *udp_session;
1411 new_ctx_id = quic_ctx_alloc (thread_index);
1412 new_ctx = quic_ctx_get (new_ctx_id, thread_index);
1414 QUIC_DBG (2, "Received conn %u (now %u)", temp_ctx->c_thread_index,
1418 memcpy (new_ctx, temp_ctx, sizeof (quic_ctx_t));
1419 clib_mem_free (temp_ctx);
1421 new_ctx->c_thread_index = thread_index;
1422 new_ctx->c_c_index = new_ctx_id;
1424 conn = new_ctx->conn;
1425 quic_store_conn_ctx (conn, new_ctx);
1426 quic_make_connection_key (&kv, quicly_get_master_id (conn));
1427 kv.value = ((u64) thread_index) << 32 | (u64) new_ctx_id;
1428 QUIC_DBG (2, "Registering conn with id %lu %lu", kv.key[0], kv.key[1]);
1429 clib_bihash_add_del_16_8 (&quic_main.connection_hash, &kv, 1 /* is_add */ );
1430 new_ctx->timer_handle = QUIC_TIMER_HANDLE_INVALID;
1431 quic_update_timer (new_ctx);
1433 /* Trigger write on this connection if necessary */
1434 udp_session = session_get_from_handle (new_ctx->udp_session_handle);
1435 if (svm_fifo_max_dequeue (udp_session->tx_fifo))
1436 if (session_send_io_evt_to_thread (udp_session->tx_fifo,
1438 QUIC_DBG (4, "Cannot send TX event");
1442 quic_transfer_connection (u32 ctx_index, u32 dest_thread)
1444 tw_timer_wheel_1t_3w_1024sl_ov_t *tw;
1445 quic_ctx_t *ctx, *temp_ctx;
1446 u32 thread_index = vlib_get_thread_index ();
1448 QUIC_DBG (2, "Transferring conn %u to thread %u", ctx_index, dest_thread);
1450 temp_ctx = clib_mem_alloc (sizeof (quic_ctx_t));
1452 ctx = quic_ctx_get (ctx_index, thread_index);
1454 memcpy (temp_ctx, ctx, sizeof (quic_ctx_t));
1456 /* Remove from timer wheel and thread-local pool */
1457 if (ctx->timer_handle != QUIC_TIMER_HANDLE_INVALID)
1459 tw = &quic_main.wrk_ctx[thread_index].timer_wheel;
1460 tw_timer_stop_1t_3w_1024sl_ov (tw, ctx->timer_handle);
1462 quic_ctx_free (ctx);
1464 /* Send connection to destination thread */
1465 session_send_rpc_evt_to_thread (dest_thread, quic_receive_connection,
1470 quic_session_connected_callback (u32 quic_app_index, u32 ctx_index,
1471 session_t * udp_session, u8 is_fail)
1473 QUIC_DBG (2, "QSession is now connected (id %u)",
1474 udp_session->session_index);
1475 /* This should always be called before quic_connect returns since UDP always
1476 * connects instantly. */
1477 clib_bihash_kv_16_8_t kv;
1478 struct sockaddr_in6 sa6;
1479 struct sockaddr *sa = (struct sockaddr *) &sa6;
1481 transport_connection_t *tc;
1482 app_worker_t *app_wrk;
1483 quicly_conn_t *conn;
1485 u32 thread_index = vlib_get_thread_index ();
1487 quicly_context_t *quicly_ctx;
1490 ctx = quic_ctx_get (ctx_index, thread_index);
1494 app_wrk = app_worker_get_if_valid (ctx->parent_app_wrk_id);
1497 api_context = ctx->c_s_index;
1498 app_worker_connect_notify (app_wrk, 0, api_context);
1503 ctx->c_thread_index = thread_index;
1504 ctx->c_c_index = ctx_index;
1506 QUIC_DBG (2, "Quic connect returned %u. New ctx [%u]%x",
1507 is_fail, thread_index, (ctx) ? ctx_index : ~0);
1509 ctx->udp_session_handle = session_handle (udp_session);
1510 udp_session->opaque = ctx->parent_app_id;
1512 /* Init QUIC lib connection
1513 * Generate required sockaddr & salen */
1514 tc = session_get_transport (udp_session);
1515 quic_build_sockaddr (sa, &salen, &tc->rmt_ip, tc->rmt_port, tc->is_ip4);
1517 quicly_ctx = quic_get_quicly_ctx_from_ctx (ctx);
1518 ret = quicly_connect (&ctx->conn, quicly_ctx, (char *) ctx->srv_hostname,
1519 sa, salen, &quic_main.next_cid,
1520 &quic_main.hs_properties, NULL);
1521 ++quic_main.next_cid.master_id;
1522 /* Save context handle in quicly connection */
1523 quic_store_conn_ctx (ctx->conn, ctx);
1526 /* Register connection in connections map */
1528 quic_make_connection_key (&kv, quicly_get_master_id (conn));
1529 kv.value = ((u64) thread_index) << 32 | (u64) ctx_index;
1530 QUIC_DBG (2, "Registering conn with id %lu %lu", kv.key[0], kv.key[1]);
1531 clib_bihash_add_del_16_8 (&quic_main.connection_hash, &kv, 1 /* is_add */ );
1533 /* UDP stack quirk? preemptively transfer connection if that happens */
1534 if (udp_session->thread_index != thread_index)
1535 quic_transfer_connection (ctx_index, udp_session->thread_index);
1537 quic_send_packets (ctx);
1543 quic_session_disconnect_callback (session_t * s)
1545 clib_warning ("UDP session disconnected???");
1549 quic_session_reset_callback (session_t * s)
1551 clib_warning ("UDP session reset???");
1555 quic_session_migrate_callback (session_t * s, session_handle_t new_sh)
1558 * TODO we need better way to get the connection from the session
1559 * This will become possible once we stop storing the app id in the UDP
1562 u32 thread_index = vlib_get_thread_index ();
1563 u64 old_session_handle = session_handle (s);
1564 u32 new_thread = session_thread_from_handle (new_sh);
1567 QUIC_DBG (1, "Session %x migrated to %lx", s->session_index, new_sh);
1569 pool_foreach (ctx, quic_main.ctx_pool[thread_index],
1571 if (ctx->udp_session_handle == old_session_handle)
1573 /* Right ctx found, move associated conn */
1574 QUIC_DBG (5, "Found right ctx: %x", ctx->c_c_index);
1575 ctx->udp_session_handle = new_sh;
1576 quic_transfer_connection (ctx->c_c_index, new_thread);
1581 QUIC_DBG (0, "BUG: Connection to migrate not found");
1585 quic_session_accepted_callback (session_t * udp_session)
1587 /* New UDP connection, try to accept it */
1590 quic_ctx_t *ctx, *lctx;
1591 session_t *udp_listen_session;
1592 u32 thread_index = vlib_get_thread_index ();
1594 udp_listen_session =
1595 listen_session_get_from_handle (udp_session->listener_handle);
1597 ctx_index = quic_ctx_alloc (thread_index);
1598 ctx = quic_ctx_get (ctx_index, thread_index);
1599 ctx->c_thread_index = udp_session->thread_index;
1600 ctx->c_c_index = ctx_index;
1601 ctx->c_s_index = QUIC_SESSION_INVALID;
1602 ctx->udp_session_handle = session_handle (udp_session);
1603 QUIC_DBG (2, "ACCEPTED UDP 0x%lx", ctx->udp_session_handle);
1604 ctx->listener_ctx_id = udp_listen_session->opaque;
1605 lctx = quic_ctx_get (udp_listen_session->opaque,
1606 udp_listen_session->thread_index);
1607 ctx->udp_is_ip4 = lctx->c_is_ip4;
1608 ctx->parent_app_id = lctx->parent_app_id;
1609 ctx->parent_app_wrk_id = lctx->parent_app_wrk_id;
1610 ctx->timer_handle = QUIC_TIMER_HANDLE_INVALID;
1611 ctx->conn_state = QUIC_CONN_STATE_OPENED;
1612 ctx->c_flags |= TRANSPORT_CONNECTION_F_NO_LOOKUP;
1614 udp_session->opaque = ctx->parent_app_id;
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 QUIC_DBG (2, "Called quic_add_segment_callback");
1629 QUIC_DBG (2, "NOT IMPLEMENTED");
1630 /* No-op for builtin */
1635 quic_del_segment_callback (u32 client_index, u64 seg_handle)
1637 QUIC_DBG (2, "Called quic_del_segment_callback");
1638 QUIC_DBG (2, "NOT IMPLEMENTED");
1639 /* No-op for builtin */
1644 quic_custom_app_rx_callback (transport_connection_t * tc)
1647 session_t *stream_session = session_get (tc->s_index, tc->thread_index);
1648 QUIC_DBG (3, "Received app READ notification");
1649 quic_ack_rx_data (stream_session);
1650 svm_fifo_reset_has_deq_ntf (stream_session->rx_fifo);
1652 /* Need to send packets (acks may never be sent otherwise) */
1653 ctx = quic_ctx_get (stream_session->connection_index,
1654 stream_session->thread_index);
1655 quic_send_packets (ctx);
1660 quic_custom_tx_callback (void *s, u32 max_burst_size)
1662 session_t *stream_session = (session_t *) s;
1663 quicly_stream_t *stream;
1668 (stream_session->session_state >= SESSION_STATE_TRANSPORT_CLOSING))
1671 quic_ctx_get (stream_session->connection_index,
1672 stream_session->thread_index);
1673 if (PREDICT_FALSE (!quic_ctx_is_stream (ctx)))
1675 goto tx_end; /* Most probably a reschedule */
1678 QUIC_DBG (3, "Stream TX event");
1679 quic_ack_rx_data (stream_session);
1680 if (!svm_fifo_max_dequeue (stream_session->tx_fifo))
1683 stream = ctx->stream;
1684 if (!quicly_sendstate_is_open (&stream->sendstate))
1686 QUIC_DBG (1, "Warning: tried to send on closed stream");
1690 if ((rv = quicly_stream_sync_sendbuf (stream, 1)) != 0)
1694 quic_send_packets (ctx);
1700 * Returns 0 if a matching connection is found and is on the right thread.
1701 * Otherwise returns -1.
1702 * If a connection is found, even on the wrong thread, ctx_thread and ctx_index
1706 quic_find_packet_ctx (u32 * ctx_thread, u32 * ctx_index,
1707 struct sockaddr *sa, socklen_t salen,
1708 quicly_decoded_packet_t * packet,
1709 u32 caller_thread_index)
1712 quicly_conn_t *conn_;
1713 clib_bihash_kv_16_8_t kv;
1714 clib_bihash_16_8_t *h;
1716 h = &quic_main.connection_hash;
1717 quic_make_connection_key (&kv, &packet->cid.dest.plaintext);
1718 QUIC_DBG (3, "Searching conn with id %lu %lu", kv.key[0], kv.key[1]);
1720 if (clib_bihash_search_16_8 (h, &kv, &kv) == 0)
1722 u32 index = kv.value & UINT32_MAX;
1723 u32 thread_id = kv.value >> 32;
1724 /* Check if this connection belongs to this thread, otherwise
1725 * ask for it to be moved */
1726 if (thread_id != caller_thread_index)
1728 QUIC_DBG (2, "Connection is on wrong thread");
1729 /* Cannot make full check with quicly_is_destination... */
1731 *ctx_thread = thread_id;
1734 ctx_ = quic_ctx_get (index, vlib_get_thread_index ());
1736 if (conn_ && quicly_is_destination (conn_, sa, salen, packet))
1738 QUIC_DBG (3, "Connection found");
1740 *ctx_thread = thread_id;
1744 QUIC_DBG (3, "connection not found");
1749 quic_create_quic_session (quic_ctx_t * ctx)
1751 session_t *quic_session;
1752 app_worker_t *app_wrk;
1756 quic_session = session_alloc (ctx->c_thread_index);
1757 QUIC_DBG (2, "Allocated quic_session, 0x%lx ctx %u",
1758 session_handle (quic_session), ctx->c_c_index);
1759 quic_session->session_state = SESSION_STATE_LISTENING;
1760 ctx->c_s_index = quic_session->session_index;
1762 lctx = quic_ctx_get (ctx->listener_ctx_id, 0);
1764 quic_session->app_wrk_index = lctx->parent_app_wrk_id;
1765 quic_session->connection_index = ctx->c_c_index;
1766 quic_session->session_type =
1767 session_type_from_proto_and_ip (TRANSPORT_PROTO_QUIC, ctx->udp_is_ip4);
1768 quic_session->listener_handle = lctx->c_s_index;
1770 /* TODO: don't alloc fifos when we don't transfer data on this session
1771 * but we still need fifos for the events? */
1772 if ((rv = app_worker_init_accepted (quic_session)))
1774 QUIC_DBG (1, "failed to allocate fifos");
1775 session_free (quic_session);
1778 app_wrk = app_worker_get (quic_session->app_wrk_index);
1779 if ((rv = app_worker_accept_notify (app_wrk, quic_session)))
1781 QUIC_DBG (1, "failed to notify accept worker app");
1788 quic_create_connection (u32 ctx_index, struct sockaddr *sa,
1789 socklen_t salen, quicly_decoded_packet_t packet)
1791 clib_bihash_kv_16_8_t kv;
1793 quicly_conn_t *conn;
1794 u32 thread_index = vlib_get_thread_index ();
1795 quicly_context_t *quicly_ctx;
1798 /* new connection, accept and create context if packet is valid
1799 * TODO: check if socket is actually listening? */
1800 ctx = quic_ctx_get (ctx_index, thread_index);
1801 quicly_ctx = quic_get_quicly_ctx_from_ctx (ctx);
1802 if ((rv = quicly_accept (&conn, quicly_ctx, sa, salen,
1803 &packet, ptls_iovec_init (NULL, 0),
1804 &quic_main.next_cid, NULL)))
1806 /* Invalid packet, pass */
1807 assert (conn == NULL);
1808 QUIC_DBG (1, "Accept failed with %d", rv);
1809 /* TODO: cleanup created quic ctx and UDP session */
1812 assert (conn != NULL);
1814 ++quic_main.next_cid.master_id;
1815 /* Save ctx handle in quicly connection */
1816 quic_store_conn_ctx (conn, ctx);
1818 ctx->conn_state = QUIC_CONN_STATE_HANDSHAKE;
1820 quic_create_quic_session (ctx);
1822 /* Register connection in connections map */
1823 quic_make_connection_key (&kv, quicly_get_master_id (conn));
1824 kv.value = ((u64) thread_index) << 32 | (u64) ctx_index;
1825 clib_bihash_add_del_16_8 (&quic_main.connection_hash, &kv, 1 /* is_add */ );
1826 QUIC_DBG (2, "Registering conn with id %lu %lu", kv.key[0], kv.key[1]);
1828 return quic_send_packets (ctx);
1832 quic_reset_connection (u64 udp_session_handle,
1833 struct sockaddr *sa, socklen_t salen,
1834 quicly_decoded_packet_t packet)
1836 /* short header packet; potentially a dead connection. No need to check the
1837 * length of the incoming packet, because loop is prevented by authenticating
1838 * the CID (by checking node_id and thread_id). If the peer is also sending a
1839 * reset, then the next CID is highly likely to contain a non-authenticating
1841 QUIC_DBG (2, "Sending stateless reset");
1843 quicly_datagram_t *dgram;
1844 session_t *udp_session;
1845 quicly_context_t *quicly_ctx;
1846 if (packet.cid.dest.plaintext.node_id != 0
1847 || packet.cid.dest.plaintext.thread_id != 0)
1849 quicly_ctx = quic_get_quicly_ctx_from_udp (udp_session_handle);
1850 dgram = quicly_send_stateless_reset (quicly_ctx, sa, salen,
1851 &packet.cid.dest.plaintext);
1854 udp_session = session_get_from_handle (udp_session_handle);
1855 rv = quic_send_datagram (udp_session, dgram);
1856 if (svm_fifo_set_event (udp_session->tx_fifo))
1857 session_send_io_evt_to_thread (udp_session->tx_fifo, SESSION_IO_EVT_TX);
1861 typedef struct quic_rx_packet_ctx_
1863 quicly_decoded_packet_t packet;
1864 u8 data[QUIC_MAX_PACKET_SIZE];
1867 } quic_rx_packet_ctx_t;
1870 check_quic_client_connected (struct quic_rx_packet_ctx_ *quic_rx_ctx)
1872 /* ctx pointer may change if a new stream is opened */
1873 quic_ctx_t *ctx = quic_ctx_get (quic_rx_ctx->ctx_index,
1874 quic_rx_ctx->thread_index);
1875 /* Conn may be set to null if the connection is terminated */
1876 if (ctx->conn && ctx->conn_state == QUIC_CONN_STATE_HANDSHAKE)
1878 if (quicly_connection_is_ready (ctx->conn))
1880 ctx->conn_state = QUIC_CONN_STATE_READY;
1881 if (quicly_is_client (ctx->conn))
1883 quic_on_client_connected (ctx);
1891 quic_process_one_rx_packet (u64 udp_session_handle,
1892 quicly_context_t * quicly_ctx, svm_fifo_t * f,
1893 u32 * fifo_offset, u32 * max_packet, u32 packet_n,
1894 quic_rx_packet_ctx_t * packet_ctx)
1896 session_dgram_hdr_t ph;
1897 quic_ctx_t *ctx = NULL;
1899 struct sockaddr_in6 sa6;
1900 struct sockaddr *sa = (struct sockaddr *) &sa6;
1904 packet_ctx->thread_index = UINT32_MAX;
1905 packet_ctx->ctx_index = UINT32_MAX;
1906 u32 thread_index = vlib_get_thread_index ();
1907 u32 *opening_ctx_pool, *ctx_index_ptr;
1908 u32 cur_deq = svm_fifo_max_dequeue (f) - *fifo_offset;
1912 *max_packet = packet_n + 1;
1916 if (cur_deq < SESSION_CONN_HDR_LEN)
1918 QUIC_DBG (1, "Not enough data for even a header in RX");
1921 ret = svm_fifo_peek (f, *fifo_offset, SESSION_CONN_HDR_LEN, (u8 *) & ph);
1922 if (ret != SESSION_CONN_HDR_LEN)
1924 QUIC_DBG (1, "Not enough data for header in RX");
1927 ASSERT (ph.data_offset == 0);
1928 full_len = ph.data_length + SESSION_CONN_HDR_LEN;
1929 if (full_len > cur_deq)
1931 QUIC_DBG (1, "Not enough data in fifo RX");
1935 /* Quicly can read len bytes from the fifo at offset:
1936 * ph.data_offset + SESSION_CONN_HDR_LEN */
1938 svm_fifo_peek (f, SESSION_CONN_HDR_LEN + *fifo_offset, ph.data_length,
1940 if (ret != ph.data_length)
1942 QUIC_DBG (1, "Not enough data peeked in RX");
1947 quic_build_sockaddr (sa, &salen, &ph.rmt_ip, ph.rmt_port, ph.is_ip4);
1948 quicly_ctx = quic_get_quicly_ctx_from_udp (udp_session_handle);
1950 quicly_decode_packet (quicly_ctx, &packet_ctx->packet, packet_ctx->data,
1953 if (plen == SIZE_MAX)
1955 *fifo_offset += SESSION_CONN_HDR_LEN + ph.data_length;
1960 quic_find_packet_ctx (&packet_ctx->thread_index, &packet_ctx->ctx_index,
1961 sa, salen, &packet_ctx->packet, thread_index);
1964 ctx = quic_ctx_get (packet_ctx->ctx_index, thread_index);
1965 rv = quicly_receive (ctx->conn, &packet_ctx->packet);
1967 QUIC_DBG (1, "quicly_receive return error %d", rv);
1969 else if (packet_ctx->ctx_index != UINT32_MAX)
1971 /* Connection found but on wrong thread, ask move */
1972 *max_packet = packet_n + 1;
1975 else if ((packet_ctx->packet.octets.base[0] & QUICLY_PACKET_TYPE_BITMASK) ==
1976 QUICLY_PACKET_TYPE_INITIAL)
1978 /* Try to find matching "opening" ctx */
1979 opening_ctx_pool = quic_main.wrk_ctx[thread_index].opening_ctx_pool;
1982 pool_foreach (ctx_index_ptr, opening_ctx_pool,
1984 ctx = quic_ctx_get (*ctx_index_ptr, thread_index);
1985 if (ctx->udp_session_handle == udp_session_handle)
1987 /* Right ctx found, create conn & remove from pool */
1988 quic_create_connection(*ctx_index_ptr, sa, salen, packet_ctx->packet);
1989 pool_put (opening_ctx_pool, ctx_index_ptr);
1990 *max_packet = packet_n + 1;
1991 packet_ctx->thread_index = thread_index;
1992 packet_ctx->ctx_index = *ctx_index_ptr;
2000 quic_reset_connection (udp_session_handle, sa, salen,
2001 packet_ctx->packet);
2005 *fifo_offset += SESSION_CONN_HDR_LEN + ph.data_length;
2010 quic_app_rx_callback (session_t * udp_session)
2012 /* Read data from UDP rx_fifo and pass it to the quicly conn. */
2014 quic_ctx_t *ctx = NULL;
2017 u32 app_index = udp_session->opaque;
2018 u64 udp_session_handle = session_handle (udp_session);
2020 app = application_get_if_valid (app_index);
2021 u32 thread_index = vlib_get_thread_index ();
2022 quic_rx_packet_ctx_t packets_ctx[16];
2026 QUIC_DBG (1, "Got RX on detached app");
2027 /* TODO: close this session, cleanup state? */
2033 udp_session = session_get_from_handle (udp_session_handle); /* session alloc might have happened */
2034 f = udp_session->rx_fifo;
2035 max_deq = svm_fifo_max_dequeue (f);
2041 u32 fifo_offset = 0;
2042 u32 max_packets = 16;
2043 for (int i = 0; i < max_packets; i++)
2045 quic_process_one_rx_packet (udp_session_handle,
2046 (quicly_context_t *) app->quicly_ctx, f,
2047 &fifo_offset, &max_packets, i,
2051 for (int i = 0; i < max_packets; i++)
2053 if (packets_ctx[i].thread_index != thread_index)
2056 check_quic_client_connected (&packets_ctx[i]);
2058 quic_ctx_get (packets_ctx[i].ctx_index,
2059 packets_ctx[i].thread_index);
2060 quic_send_packets (ctx);
2062 svm_fifo_dequeue_drop (f, fifo_offset);
2069 quic_common_get_transport_endpoint (quic_ctx_t * ctx,
2070 transport_endpoint_t * tep, u8 is_lcl)
2072 session_t *udp_session;
2073 if (!quic_ctx_is_stream (ctx))
2075 udp_session = session_get_from_handle (ctx->udp_session_handle);
2076 session_get_endpoint (udp_session, tep, is_lcl);
2081 quic_get_transport_listener_endpoint (u32 listener_index,
2082 transport_endpoint_t * tep, u8 is_lcl)
2085 app_listener_t *app_listener;
2086 session_t *udp_listen_session;
2087 ctx = quic_ctx_get (listener_index, vlib_get_thread_index ());
2088 if (quic_ctx_is_listener (ctx))
2090 app_listener = app_listener_get_w_handle (ctx->udp_session_handle);
2091 udp_listen_session = app_listener_get_session (app_listener);
2092 return session_get_endpoint (udp_listen_session, tep, is_lcl);
2094 quic_common_get_transport_endpoint (ctx, tep, is_lcl);
2098 quic_get_transport_endpoint (u32 ctx_index, u32 thread_index,
2099 transport_endpoint_t * tep, u8 is_lcl)
2102 ctx = quic_ctx_get (ctx_index, thread_index);
2103 quic_common_get_transport_endpoint (ctx, tep, is_lcl);
2106 /*****************************************************************************
2107 * END TRANSPORT PROTO FUNCTIONS
2108 *****************************************************************************/
2111 static session_cb_vft_t quic_app_cb_vft = {
2112 .session_accept_callback = quic_session_accepted_callback,
2113 .session_disconnect_callback = quic_session_disconnect_callback,
2114 .session_connected_callback = quic_session_connected_callback,
2115 .session_reset_callback = quic_session_reset_callback,
2116 .session_migrate_callback = quic_session_migrate_callback,
2117 .add_segment_callback = quic_add_segment_callback,
2118 .del_segment_callback = quic_del_segment_callback,
2119 .builtin_app_rx_callback = quic_app_rx_callback,
2122 static const transport_proto_vft_t quic_proto = {
2123 .connect = quic_connect,
2124 .close = quic_proto_on_close,
2125 .start_listen = quic_start_listen,
2126 .stop_listen = quic_stop_listen,
2127 .get_connection = quic_connection_get,
2128 .get_listener = quic_listener_get,
2129 .update_time = quic_update_time,
2130 .app_rx_evt = quic_custom_app_rx_callback,
2131 .custom_tx = quic_custom_tx_callback,
2132 .format_connection = format_quic_connection,
2133 .format_half_open = format_quic_half_open,
2134 .format_listener = format_quic_listener,
2135 .get_transport_endpoint = quic_get_transport_endpoint,
2136 .get_transport_listener_endpoint = quic_get_transport_listener_endpoint,
2137 .transport_options = {
2138 .tx_type = TRANSPORT_TX_INTERNAL,
2139 .service_type = TRANSPORT_SERVICE_APP,
2145 quic_register_cipher_suite (quic_crypto_engine_t type,
2146 ptls_cipher_suite_t ** ciphers)
2148 quic_main_t *qm = &quic_main;
2149 vec_validate (qm->quic_ciphers, type);
2150 qm->quic_ciphers[type] = ciphers;
2153 static clib_error_t *
2154 quic_init (vlib_main_t * vm)
2156 u32 segment_size = 256 << 20;
2157 vlib_thread_main_t *vtm = vlib_get_thread_main ();
2158 tw_timer_wheel_1t_3w_1024sl_ov_t *tw;
2159 vnet_app_attach_args_t _a, *a = &_a;
2160 u64 options[APP_OPTIONS_N_OPTIONS];
2161 quic_main_t *qm = &quic_main;
2162 u32 fifo_size = QUIC_FIFO_SIZE;
2165 num_threads = 1 /* main thread */ + vtm->n_threads;
2167 memset (a, 0, sizeof (*a));
2168 memset (options, 0, sizeof (options));
2170 a->session_cb_vft = &quic_app_cb_vft;
2171 a->api_client_index = APP_INVALID_INDEX;
2172 a->options = options;
2173 a->name = format (0, "quic");
2174 a->options[APP_OPTIONS_SEGMENT_SIZE] = segment_size;
2175 a->options[APP_OPTIONS_ADD_SEGMENT_SIZE] = segment_size;
2176 a->options[APP_OPTIONS_RX_FIFO_SIZE] = fifo_size;
2177 a->options[APP_OPTIONS_TX_FIFO_SIZE] = fifo_size;
2178 a->options[APP_OPTIONS_FLAGS] = APP_OPTIONS_FLAGS_IS_BUILTIN;
2179 a->options[APP_OPTIONS_FLAGS] |= APP_OPTIONS_FLAGS_USE_GLOBAL_SCOPE;
2180 a->options[APP_OPTIONS_FLAGS] |= APP_OPTIONS_FLAGS_IS_TRANSPORT_APP;
2182 if (vnet_application_attach (a))
2184 clib_warning ("failed to attach quic app");
2185 return clib_error_return (0, "failed to attach quic app");
2188 vec_validate (qm->ctx_pool, num_threads - 1);
2189 vec_validate (qm->wrk_ctx, num_threads - 1);
2190 /* Timer wheels, one per thread. */
2191 for (i = 0; i < num_threads; i++)
2193 tw = &qm->wrk_ctx[i].timer_wheel;
2194 tw_timer_wheel_init_1t_3w_1024sl_ov (tw, quic_expired_timers_dispatch,
2195 1e-3 /* timer period 1ms */ , ~0);
2196 tw->last_run_time = vlib_time_now (vlib_get_main ());
2199 clib_bihash_init_16_8 (&qm->connection_hash, "quic connections", 1024,
2203 qm->app_index = a->app_index;
2204 qm->tstamp_ticks_per_clock = vm->clib_time.seconds_per_clock
2205 / QUIC_TSTAMP_RESOLUTION;
2206 qm->session_cache.super.cb = quic_encrypt_ticket_cb;
2208 transport_register_protocol (TRANSPORT_PROTO_QUIC, &quic_proto,
2209 FIB_PROTOCOL_IP4, ~0);
2210 transport_register_protocol (TRANSPORT_PROTO_QUIC, &quic_proto,
2211 FIB_PROTOCOL_IP6, ~0);
2213 quic_register_cipher_suite (CRYPTO_ENGINE_VPP, vpp_crypto_cipher_suites);
2214 quic_register_cipher_suite (CRYPTO_ENGINE_PICOTLS,
2215 ptls_openssl_cipher_suites);
2216 qm->default_cipher = CRYPTO_ENGINE_PICOTLS;
2221 VLIB_INIT_FUNCTION (quic_init);
2223 static clib_error_t *
2224 quic_plugin_crypto_command_fn (vlib_main_t * vm,
2225 unformat_input_t * input,
2226 vlib_cli_command_t * cmd)
2228 quic_main_t *qm = &quic_main;
2229 if (unformat_check_input (input) == UNFORMAT_END_OF_INPUT)
2230 return clib_error_return (0, "unknown input '%U'",
2231 format_unformat_error, input);
2232 if (unformat (input, "vpp"))
2233 qm->default_cipher = CRYPTO_ENGINE_VPP;
2234 else if (unformat (input, "picotls"))
2235 qm->default_cipher = CRYPTO_ENGINE_PICOTLS;
2237 return clib_error_return (0, "unknown input '%U'",
2238 format_unformat_error, input);
2243 VLIB_CLI_COMMAND(quic_plugin_crypto_command, static)=
2245 .path = "quic set crypto api",
2246 .short_help = "quic set crypto api [picotls, vpp]",
2247 .function = quic_plugin_crypto_command_fn,
2249 VLIB_PLUGIN_REGISTER () =
2251 .version = VPP_BUILD_VER,
2252 .description = "Quic transport protocol",
2253 .default_disabled = 1,
2258 * fd.io coding-style-patch-verification: ON
2261 * eval: (c-set-style "gnu")