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);
36 static int quic_on_client_connected (quic_ctx_t * ctx);
39 quic_ctx_alloc (u32 thread_index)
41 quic_main_t *qm = &quic_main;
44 pool_get (qm->ctx_pool[thread_index], ctx);
46 memset (ctx, 0, sizeof (quic_ctx_t));
47 ctx->c_thread_index = thread_index;
48 QUIC_DBG (3, "Allocated quic_ctx %u on thread %u",
49 ctx - qm->ctx_pool[thread_index], thread_index);
50 return ctx - qm->ctx_pool[thread_index];
54 quic_ctx_free (quic_ctx_t * ctx)
56 QUIC_DBG (2, "Free ctx %u", ctx->c_c_index);
57 u32 thread_index = ctx->c_thread_index;
59 memset (ctx, 0xfb, sizeof (*ctx));
60 pool_put (quic_main.ctx_pool[thread_index], ctx);
64 quic_ctx_get (u32 ctx_index, u32 thread_index)
66 return pool_elt_at_index (quic_main.ctx_pool[thread_index], ctx_index);
70 quic_ctx_get_if_valid (u32 ctx_index, u32 thread_index)
72 if (pool_is_free_index (quic_main.ctx_pool[thread_index], ctx_index))
74 return pool_elt_at_index (quic_main.ctx_pool[thread_index], ctx_index);
78 quic_get_conn_ctx (quicly_conn_t * conn)
81 conn_data = (u64) * quicly_get_data (conn);
82 return quic_ctx_get (conn_data & UINT32_MAX, conn_data >> 32);
86 quic_store_conn_ctx (quicly_conn_t * conn, quic_ctx_t * ctx)
88 *quicly_get_data (conn) =
89 (void *) (((u64) ctx->c_thread_index) << 32 | (u64) ctx->c_c_index);
93 quic_ctx_is_stream (quic_ctx_t * ctx)
95 return (ctx->flags & QUIC_F_IS_STREAM);
99 quic_ctx_is_listener (quic_ctx_t * ctx)
101 return (ctx->flags & QUIC_F_IS_LISTENER);
105 get_stream_session_from_stream (quicly_stream_t * stream)
108 quic_stream_data_t *stream_data;
110 stream_data = (quic_stream_data_t *) stream->data;
111 ctx = quic_ctx_get (stream_data->ctx_id, stream_data->thread_index);
112 return session_get (ctx->c_s_index, stream_data->thread_index);
116 quic_make_connection_key (clib_bihash_kv_16_8_t * kv,
117 const quicly_cid_plaintext_t * id)
119 kv->key[0] = ((u64) id->master_id) << 32 | (u64) id->thread_id;
120 kv->key[1] = id->node_id;
124 quic_sendable_packet_count (session_t * udp_session)
127 u32 packet_size = QUIC_MAX_PACKET_SIZE + SESSION_CONN_HDR_LEN;
128 max_enqueue = svm_fifo_max_enqueue (udp_session->tx_fifo);
129 return clib_min (max_enqueue / packet_size, QUIC_SEND_PACKET_VEC_SIZE);
132 static quicly_context_t *
133 quic_get_quicly_ctx_from_ctx (quic_ctx_t * ctx)
135 app_worker_t *app_wrk;
137 app_wrk = app_worker_get_if_valid (ctx->parent_app_wrk_id);
140 app = application_get (app_wrk->app_index);
141 return (quicly_context_t *) app->quicly_ctx;
144 static quicly_context_t *
145 quic_get_quicly_ctx_from_udp (u64 udp_session_handle)
147 session_t *udp_session;
149 udp_session = session_get_from_handle (udp_session_handle);
150 app = application_get (udp_session->opaque);
151 return (quicly_context_t *) app->quicly_ctx;
155 quic_ack_rx_data (session_t * stream_session)
160 quicly_stream_t *stream;
161 quic_stream_data_t *stream_data;
164 quic_ctx_get (stream_session->connection_index,
165 stream_session->thread_index);
166 ASSERT (quic_ctx_is_stream (sctx));
167 stream = sctx->stream;
168 stream_data = (quic_stream_data_t *) stream->data;
170 f = stream_session->rx_fifo;
171 max_deq = svm_fifo_max_dequeue (f);
173 ASSERT (stream_data->app_rx_data_len >= max_deq);
174 quicly_stream_sync_recvbuf (stream, stream_data->app_rx_data_len - max_deq);
175 QUIC_DBG (3, "Acking %u bytes", stream_data->app_rx_data_len - max_deq);
176 stream_data->app_rx_data_len = max_deq;
180 quic_disconnect_transport (quic_ctx_t * ctx)
182 QUIC_DBG (2, "Disconnecting transport 0x%lx", ctx->udp_session_handle);
183 vnet_disconnect_args_t a = {
184 .handle = ctx->udp_session_handle,
185 .app_index = quic_main.app_index,
188 if (vnet_disconnect_session (&a))
189 clib_warning ("UDP session 0x%lx disconnect errored",
190 ctx->udp_session_handle);
194 quic_connection_delete (quic_ctx_t * ctx)
196 tw_timer_wheel_1t_3w_1024sl_ov_t *tw;
197 clib_bihash_kv_16_8_t kv;
200 QUIC_DBG (2, "Deleting connection %u", ctx->c_c_index);
202 ASSERT (!quic_ctx_is_stream (ctx));
205 if (ctx->timer_handle != QUIC_TIMER_HANDLE_INVALID)
207 tw = &quic_main.wrk_ctx[ctx->c_thread_index].timer_wheel;
208 tw_timer_stop_1t_3w_1024sl_ov (tw, ctx->timer_handle);
211 /* Delete the connection from the connection map */
213 quic_make_connection_key (&kv, quicly_get_master_id (conn));
214 QUIC_DBG (2, "Deleting conn with id %lu %lu from map", kv.key[0],
216 clib_bihash_add_del_16_8 (&quic_main.connection_hash, &kv, 0 /* is_add */ );
218 quic_disconnect_transport (ctx);
221 quicly_free (ctx->conn);
224 session_transport_delete_notify (&ctx->connection);
229 * Called when quicly return an error
230 * This function interacts tightly with quic_proto_on_close
233 quic_connection_closed (quic_ctx_t * ctx)
235 QUIC_DBG (2, "QUIC connection %u/%u closed", ctx->c_thread_index,
238 /* TODO if connection is not established, just delete the session? */
239 /* Actually should send connect or accept error */
241 switch (ctx->conn_state)
243 case QUIC_CONN_STATE_READY:
244 /* Error on an opened connection (timeout...)
245 This puts the session in closing state, we should receive a notification
246 when the app has closed its session */
247 session_transport_reset_notify (&ctx->connection);
248 /* This ensures we delete the connection when the app confirms the close */
249 ctx->conn_state = QUIC_CONN_STATE_PASSIVE_CLOSING_QUIC_CLOSED;
251 case QUIC_CONN_STATE_PASSIVE_CLOSING:
252 ctx->conn_state = QUIC_CONN_STATE_PASSIVE_CLOSING_QUIC_CLOSED;
253 /* quic_proto_on_close will eventually be called when the app confirms the close
254 , we delete the connection at that point */
256 case QUIC_CONN_STATE_PASSIVE_CLOSING_APP_CLOSED:
257 /* App already confirmed close, we can delete the connection */
258 session_transport_delete_notify (&ctx->connection);
259 quic_connection_delete (ctx);
261 case QUIC_CONN_STATE_PASSIVE_CLOSING_QUIC_CLOSED:
264 case QUIC_CONN_STATE_ACTIVE_CLOSING:
265 session_transport_delete_notify (&ctx->connection);
266 quic_connection_delete (ctx);
275 quic_send_datagram (session_t * udp_session, quicly_datagram_t * packet)
278 session_dgram_hdr_t hdr;
281 transport_connection_t *tc;
283 len = packet->data.len;
284 f = udp_session->tx_fifo;
285 tc = session_get_transport (udp_session);
286 max_enqueue = svm_fifo_max_enqueue (f);
287 if (max_enqueue < SESSION_CONN_HDR_LEN + len)
289 QUIC_DBG (1, "Too much data to send, max_enqueue %u, len %u",
290 max_enqueue, len + SESSION_CONN_HDR_LEN);
291 return QUIC_ERROR_FULL_FIFO;
294 /* Build packet header for fifo */
295 hdr.data_length = len;
297 hdr.is_ip4 = tc->is_ip4;
298 clib_memcpy (&hdr.lcl_ip, &tc->lcl_ip, sizeof (ip46_address_t));
299 hdr.lcl_port = tc->lcl_port;
301 /* Read dest address from quicly-provided sockaddr */
304 ASSERT (packet->sa.sa_family == AF_INET);
305 struct sockaddr_in *sa4 = (struct sockaddr_in *) &packet->sa;
306 hdr.rmt_port = sa4->sin_port;
307 hdr.rmt_ip.ip4.as_u32 = sa4->sin_addr.s_addr;
311 ASSERT (packet->sa.sa_family == AF_INET6);
312 struct sockaddr_in6 *sa6 = (struct sockaddr_in6 *) &packet->sa;
313 hdr.rmt_port = sa6->sin6_port;
314 clib_memcpy (&hdr.rmt_ip.ip6, &sa6->sin6_addr, 16);
317 ret = svm_fifo_enqueue (f, sizeof (hdr), (u8 *) & hdr);
318 if (ret != sizeof (hdr))
320 QUIC_DBG (1, "Not enough space to enqueue header");
321 return QUIC_ERROR_FULL_FIFO;
323 ret = svm_fifo_enqueue (f, len, packet->data.base);
326 QUIC_DBG (1, "Not enough space to enqueue payload");
327 return QUIC_ERROR_FULL_FIFO;
333 quic_send_packets (quic_ctx_t * ctx)
335 quicly_datagram_t *packets[QUIC_SEND_PACKET_VEC_SIZE];
336 session_t *udp_session;
338 size_t num_packets, i, max_packets;
339 quicly_packet_allocator_t *pa;
340 quicly_context_t *quicly_context;
343 /* We have sctx, get qctx */
344 if (quic_ctx_is_stream (ctx))
345 ctx = quic_ctx_get (ctx->quic_connection_ctx_id, ctx->c_thread_index);
347 ASSERT (!quic_ctx_is_stream (ctx));
349 udp_session = session_get_from_handle_if_valid (ctx->udp_session_handle);
358 /* TODO : quicly can assert it can send min_packets up to 2 */
359 if (quic_sendable_packet_count (udp_session) < 2)
362 quicly_context = quic_get_quicly_ctx_from_ctx (ctx);
365 clib_warning ("Tried to send packets on non existing app worker %u",
366 ctx->parent_app_wrk_id);
367 quic_connection_delete (ctx);
370 pa = quicly_context->packet_allocator;
373 max_packets = quic_sendable_packet_count (udp_session);
376 num_packets = max_packets;
377 if ((err = quicly_send (conn, packets, &num_packets)))
380 for (i = 0; i != num_packets; ++i)
382 if ((err = quic_send_datagram (udp_session, packets[i])))
385 pa->free_packet (pa, packets[i]);
388 while (num_packets > 0 && num_packets == max_packets);
391 if (svm_fifo_set_event (udp_session->tx_fifo))
393 session_send_io_evt_to_thread (udp_session->tx_fifo,
395 clib_warning ("Event enqueue errored %d", err);
397 QUIC_DBG (3, "%u[TX] %u[RX]", svm_fifo_max_dequeue (udp_session->tx_fifo),
398 svm_fifo_max_dequeue (udp_session->rx_fifo));
399 quic_update_timer (ctx);
403 if (err && err != QUICLY_ERROR_PACKET_IGNORED
404 && err != QUICLY_ERROR_FREE_CONNECTION)
405 clib_warning ("Quic error '%U'.", quic_format_err, err);
406 quic_connection_closed (ctx);
410 /*****************************************************************************
412 * START QUICLY CALLBACKS
413 * Called from QUIC lib
415 *****************************************************************************/
418 quic_on_stream_destroy (quicly_stream_t * stream, int err)
420 quic_stream_data_t *stream_data = (quic_stream_data_t *) stream->data;
422 quic_ctx_get (stream_data->ctx_id, stream_data->thread_index);
423 session_t *stream_session =
424 session_get (sctx->c_s_index, sctx->c_thread_index);
425 QUIC_DBG (2, "DESTROYED_STREAM: session 0x%lx (%U)",
426 session_handle (stream_session), quic_format_err, err);
428 stream_session->session_state = SESSION_STATE_CLOSED;
429 session_transport_delete_notify (&sctx->connection);
431 quic_ctx_free (sctx);
436 quic_on_stop_sending (quicly_stream_t * stream, int err)
439 quic_stream_data_t *stream_data = (quic_stream_data_t *) stream->data;
441 quic_ctx_get (stream_data->ctx_id, stream_data->thread_index);
442 session_t *stream_session =
443 session_get (sctx->c_s_index, sctx->c_thread_index);
444 clib_warning ("(NOT IMPLEMENTD) STOP_SENDING: session 0x%lx (%U)",
445 session_handle (stream_session), quic_format_err, err);
447 /* TODO : handle STOP_SENDING */
452 quic_on_receive_reset (quicly_stream_t * stream, int err)
454 quic_stream_data_t *stream_data = (quic_stream_data_t *) stream->data;
456 quic_ctx_get (stream_data->ctx_id, stream_data->thread_index);
458 session_t *stream_session =
459 session_get (sctx->c_s_index, sctx->c_thread_index);
460 clib_warning ("RESET_STREAM: session 0x%lx (%U)",
461 session_handle (stream_session), quic_format_err, err);
463 session_transport_closing_notify (&sctx->connection);
468 quic_on_receive (quicly_stream_t * stream, size_t off, const void *src,
471 QUIC_DBG (3, "received data: %lu bytes, offset %lu", len, off);
474 session_t *stream_session;
475 app_worker_t *app_wrk;
477 quic_stream_data_t *stream_data;
480 stream_data = (quic_stream_data_t *) stream->data;
481 sctx = quic_ctx_get (stream_data->ctx_id, stream_data->thread_index);
482 stream_session = session_get (sctx->c_s_index, stream_data->thread_index);
483 f = stream_session->rx_fifo;
485 max_enq = svm_fifo_max_enqueue_prod (f);
486 QUIC_DBG (3, "Enqueuing %u at off %u in %u space", len, off, max_enq);
487 if (off - stream_data->app_rx_data_len + len > max_enq)
489 QUIC_DBG (1, "Error RX fifo is full");
492 if (off == stream_data->app_rx_data_len)
494 /* Streams live on the same thread so (f, stream_data) should stay consistent */
495 rlen = svm_fifo_enqueue (f, len, (u8 *) src);
496 stream_data->app_rx_data_len += rlen;
497 ASSERT (rlen >= len);
498 app_wrk = app_worker_get_if_valid (stream_session->app_wrk_index);
499 if (PREDICT_TRUE (app_wrk != 0))
500 app_worker_lock_and_send_event (app_wrk, stream_session,
502 quic_ack_rx_data (stream_session);
507 svm_fifo_enqueue_with_offset (f, off - stream_data->app_rx_data_len,
515 quic_fifo_egress_shift (quicly_stream_t * stream, size_t delta)
517 session_t *stream_session;
521 stream_session = get_stream_session_from_stream (stream);
522 f = stream_session->tx_fifo;
524 rv = svm_fifo_dequeue_drop (f, delta);
525 ASSERT (rv == delta);
526 quicly_stream_sync_sendbuf (stream, 0);
530 quic_fifo_egress_emit (quicly_stream_t * stream, size_t off, void *dst,
531 size_t * len, int *wrote_all)
533 session_t *stream_session;
535 u32 deq_max, first_deq, max_rd_chunk, rem_offset;
537 stream_session = get_stream_session_from_stream (stream);
538 f = stream_session->tx_fifo;
540 QUIC_DBG (3, "Emitting %u, offset %u", *len, off);
542 deq_max = svm_fifo_max_dequeue_cons (f);
543 ASSERT (off <= deq_max);
544 if (off + *len < deq_max)
551 *len = deq_max - off;
552 QUIC_DBG (3, "Wrote ALL, %u", *len);
555 /* TODO, use something like : return svm_fifo_peek (f, off, *len, dst); */
556 max_rd_chunk = svm_fifo_max_read_chunk (f);
559 if (off < max_rd_chunk)
561 first_deq = clib_min (*len, max_rd_chunk - off);
562 clib_memcpy_fast (dst, svm_fifo_head (f) + off, first_deq);
565 if (max_rd_chunk < off + *len)
567 rem_offset = max_rd_chunk < off ? off - max_rd_chunk : 0;
568 clib_memcpy_fast (dst + first_deq, f->head_chunk->data + rem_offset,
575 static const quicly_stream_callbacks_t quic_stream_callbacks = {
576 .on_destroy = quic_on_stream_destroy,
577 .on_send_shift = quic_fifo_egress_shift,
578 .on_send_emit = quic_fifo_egress_emit,
579 .on_send_stop = quic_on_stop_sending,
580 .on_receive = quic_on_receive,
581 .on_receive_reset = quic_on_receive_reset
585 quic_accept_stream (void *s)
587 quicly_stream_t *stream = (quicly_stream_t *) s;
588 session_t *stream_session, *quic_session;
589 quic_stream_data_t *stream_data;
590 app_worker_t *app_wrk;
591 quic_ctx_t *qctx, *sctx;
595 sctx_id = quic_ctx_alloc (vlib_get_thread_index ());
597 qctx = quic_get_conn_ctx (stream->conn);
599 /* Might need to signal that the connection is ready if the first thing the
600 * server does is open a stream */
601 if (qctx->conn_state == QUIC_CONN_STATE_HANDSHAKE)
603 if (quicly_connection_is_ready (qctx->conn))
605 qctx->conn_state = QUIC_CONN_STATE_READY;
606 if (quicly_is_client (qctx->conn))
608 quic_on_client_connected (qctx);
609 /* ctx might be invalidated */
610 qctx = quic_get_conn_ctx (stream->conn);
615 stream_session = session_alloc (qctx->c_thread_index);
616 QUIC_DBG (2, "ACCEPTED stream_session 0x%lx ctx %u",
617 session_handle (stream_session), sctx_id);
618 sctx = quic_ctx_get (sctx_id, qctx->c_thread_index);
619 sctx->parent_app_wrk_id = qctx->parent_app_wrk_id;
620 sctx->parent_app_id = qctx->parent_app_id;
621 sctx->quic_connection_ctx_id = qctx->c_c_index;
622 sctx->c_c_index = sctx_id;
623 sctx->c_s_index = stream_session->session_index;
624 sctx->stream = stream;
625 sctx->c_flags |= TRANSPORT_CONNECTION_F_NO_LOOKUP;
626 sctx->flags |= QUIC_F_IS_STREAM;
628 stream_data = (quic_stream_data_t *) stream->data;
629 stream_data->ctx_id = sctx_id;
630 stream_data->thread_index = sctx->c_thread_index;
631 stream_data->app_rx_data_len = 0;
633 sctx->c_s_index = stream_session->session_index;
634 stream_session->session_state = SESSION_STATE_CREATED;
635 stream_session->app_wrk_index = sctx->parent_app_wrk_id;
636 stream_session->connection_index = sctx->c_c_index;
637 stream_session->session_type =
638 session_type_from_proto_and_ip (TRANSPORT_PROTO_QUIC, qctx->udp_is_ip4);
639 quic_session = session_get (qctx->c_s_index, qctx->c_thread_index);
640 stream_session->listener_handle = listen_session_get_handle (quic_session);
642 app_wrk = app_worker_get (stream_session->app_wrk_index);
643 if ((rv = app_worker_init_connected (app_wrk, stream_session)))
645 QUIC_DBG (1, "failed to allocate fifos");
646 session_free (stream_session);
647 quicly_reset_stream (stream, QUIC_APP_ALLOCATION_ERROR);
650 svm_fifo_add_want_deq_ntf (stream_session->rx_fifo,
651 SVM_FIFO_WANT_DEQ_NOTIF_IF_FULL |
652 SVM_FIFO_WANT_DEQ_NOTIF_IF_EMPTY);
654 if ((rv = app_worker_accept_notify (app_wrk, stream_session)))
656 QUIC_DBG (1, "failed to notify accept worker app");
657 session_free_w_fifos (stream_session);
658 quicly_reset_stream (stream, QUIC_APP_ACCEPT_NOTIFY_ERROR);
664 quic_on_stream_open (quicly_stream_open_t * self, quicly_stream_t * stream)
666 QUIC_DBG (2, "on_stream_open called");
667 stream->data = malloc (sizeof (quic_stream_data_t));
668 stream->callbacks = &quic_stream_callbacks;
669 /* Notify accept on parent qsession, but only if this is not a locally
670 * initiated stream */
671 if (!quicly_stream_is_self_initiated (stream))
672 quic_accept_stream (stream);
677 quic_on_closed_by_peer (quicly_closed_by_peer_t * self, quicly_conn_t * conn,
678 int code, uint64_t frame_type,
679 const char *reason, size_t reason_len)
681 quic_ctx_t *ctx = quic_get_conn_ctx (conn);
683 session_t *quic_session = session_get (ctx->c_s_index, ctx->c_thread_index);
684 clib_warning ("Session 0x%lx closed by peer (%U) %.*s ",
685 session_handle (quic_session), quic_format_err, code,
688 ctx->conn_state = QUIC_CONN_STATE_PASSIVE_CLOSING;
689 session_transport_closing_notify (&ctx->connection);
692 static quicly_stream_open_t on_stream_open = { &quic_on_stream_open };
693 static quicly_closed_by_peer_t on_closed_by_peer =
694 { &quic_on_closed_by_peer };
697 /*****************************************************************************
699 * END QUICLY CALLBACKS
701 *****************************************************************************/
703 /*****************************************************************************
705 * BEGIN TIMERS HANDLING
707 *****************************************************************************/
710 quic_get_thread_time (u8 thread_index)
712 return quic_main.wrk_ctx[thread_index].time_now;
716 quic_get_time (quicly_now_t * self)
718 u8 thread_index = vlib_get_thread_index ();
719 return quic_get_thread_time (thread_index);
722 static quicly_now_t quicly_vpp_now_cb = { quic_get_time };
725 quic_set_time_now (u32 thread_index)
727 vlib_main_t *vlib_main = vlib_get_main ();
728 f64 time = vlib_time_now (vlib_main);
729 quic_main.wrk_ctx[thread_index].time_now = (int64_t) (time * 1000.f);
730 return quic_main.wrk_ctx[thread_index].time_now;
733 /* Transport proto callback */
735 quic_update_time (f64 now, u8 thread_index)
737 tw_timer_wheel_1t_3w_1024sl_ov_t *tw;
739 tw = &quic_main.wrk_ctx[thread_index].timer_wheel;
740 quic_set_time_now (thread_index);
741 tw_timer_expire_timers_1t_3w_1024sl_ov (tw, now);
745 quic_timer_expired (u32 conn_index)
748 QUIC_DBG (4, "Timer expired for conn %u at %ld", conn_index,
749 quic_get_time (NULL));
750 ctx = quic_ctx_get (conn_index, vlib_get_thread_index ());
751 ctx->timer_handle = QUIC_TIMER_HANDLE_INVALID;
752 quic_send_packets (ctx);
756 quic_update_timer (quic_ctx_t * ctx)
758 tw_timer_wheel_1t_3w_1024sl_ov_t *tw;
759 int64_t next_timeout, next_interval;
760 session_t *quic_session;
762 /* This timeout is in ms which is the unit of our timer */
763 next_timeout = quicly_get_first_timeout (ctx->conn);
764 next_interval = next_timeout - quic_get_time (NULL);
766 if (next_timeout == 0 || next_interval <= 0)
768 if (ctx->c_s_index == QUIC_SESSION_INVALID)
774 quic_session = session_get (ctx->c_s_index, ctx->c_thread_index);
775 if (svm_fifo_set_event (quic_session->tx_fifo))
776 session_send_io_evt_to_thread_custom (quic_session,
777 quic_session->thread_index,
778 SESSION_IO_EVT_BUILTIN_TX);
783 tw = &quic_main.wrk_ctx[vlib_get_thread_index ()].timer_wheel;
785 QUIC_DBG (4, "Timer set to %ld (int %ld) for ctx %u", next_timeout,
786 next_interval, ctx->c_c_index);
788 if (ctx->timer_handle == QUIC_TIMER_HANDLE_INVALID)
790 if (next_timeout == INT64_MAX)
792 QUIC_DBG (4, "timer for ctx %u already stopped", ctx->c_c_index);
796 tw_timer_start_1t_3w_1024sl_ov (tw, ctx->c_c_index, 0, next_interval);
800 if (next_timeout == INT64_MAX)
802 tw_timer_stop_1t_3w_1024sl_ov (tw, ctx->timer_handle);
803 ctx->timer_handle = QUIC_TIMER_HANDLE_INVALID;
804 QUIC_DBG (4, "Stopping timer for ctx %u", ctx->c_c_index);
807 tw_timer_update_1t_3w_1024sl_ov (tw, ctx->timer_handle,
814 quic_expired_timers_dispatch (u32 * expired_timers)
818 for (i = 0; i < vec_len (expired_timers); i++)
820 quic_timer_expired (expired_timers[i]);
824 /*****************************************************************************
826 * END TIMERS HANDLING
828 *****************************************************************************/
831 quic_encrypt_ticket_cb (ptls_encrypt_ticket_t * _self, ptls_t * tls,
832 int is_encrypt, ptls_buffer_t * dst, ptls_iovec_t src)
834 quic_session_cache_t *self = (void *) _self;
840 /* replace the cached entry along with a newly generated session id */
841 free (self->data.base);
842 if ((self->data.base = malloc (src.len)) == NULL)
843 return PTLS_ERROR_NO_MEMORY;
845 ptls_get_context (tls)->random_bytes (self->id, sizeof (self->id));
846 memcpy (self->data.base, src.base, src.len);
847 self->data.len = src.len;
849 /* store the session id in buffer */
850 if ((ret = ptls_buffer_reserve (dst, sizeof (self->id))) != 0)
852 memcpy (dst->base + dst->off, self->id, sizeof (self->id));
853 dst->off += sizeof (self->id);
859 /* check if session id is the one stored in cache */
860 if (src.len != sizeof (self->id))
861 return PTLS_ERROR_SESSION_NOT_FOUND;
862 if (memcmp (self->id, src.base, sizeof (self->id)) != 0)
863 return PTLS_ERROR_SESSION_NOT_FOUND;
865 /* return the cached value */
866 if ((ret = ptls_buffer_reserve (dst, self->data.len)) != 0)
868 memcpy (dst->base + dst->off, self->data.base, self->data.len);
869 dst->off += self->data.len;
875 typedef struct quicly_ctx_data_
877 quicly_context_t quicly_ctx;
879 ptls_context_t ptls_ctx;
883 quic_store_quicly_ctx (application_t * app, u8 is_client)
885 quic_main_t *qm = &quic_main;
886 quicly_context_t *quicly_ctx;
887 ptls_iovec_t key_vec;
891 quicly_ctx_data_t *quicly_ctx_data =
892 clib_mem_alloc (sizeof (quicly_ctx_data_t));
893 clib_memset (quicly_ctx_data, 0, sizeof (*quicly_ctx_data)); /* picotls depends on this */
894 quicly_ctx = &quicly_ctx_data->quicly_ctx;
895 ptls_context_t *ptls_ctx = &quicly_ctx_data->ptls_ctx;
896 ptls_ctx->random_bytes = ptls_openssl_random_bytes;
897 ptls_ctx->get_time = &ptls_get_time;
898 ptls_ctx->key_exchanges = ptls_openssl_key_exchanges;
899 ptls_ctx->cipher_suites = qm->quic_ciphers[qm->default_cipher];
900 ptls_ctx->certificates.list = NULL;
901 ptls_ctx->certificates.count = 0;
902 ptls_ctx->esni = NULL;
903 ptls_ctx->on_client_hello = NULL;
904 ptls_ctx->emit_certificate = NULL;
905 ptls_ctx->sign_certificate = NULL;
906 ptls_ctx->verify_certificate = NULL;
907 ptls_ctx->ticket_lifetime = 86400;
908 ptls_ctx->max_early_data_size = 8192;
909 ptls_ctx->hkdf_label_prefix__obsolete = NULL;
910 ptls_ctx->require_dhe_on_psk = 1;
911 ptls_ctx->encrypt_ticket = &qm->session_cache.super;
913 app->quicly_ctx = (u64 *) quicly_ctx;
914 memcpy (quicly_ctx, &quicly_spec_context, sizeof (quicly_context_t));
916 quicly_ctx->max_packet_size = QUIC_MAX_PACKET_SIZE;
917 quicly_ctx->tls = ptls_ctx;
918 quicly_ctx->stream_open = &on_stream_open;
919 quicly_ctx->closed_by_peer = &on_closed_by_peer;
920 quicly_ctx->now = &quicly_vpp_now_cb;
921 quicly_amend_ptls_context (quicly_ctx->tls);
923 quicly_ctx->event_log.mask = 0; /* logs */
924 quicly_ctx->event_log.cb = quicly_new_default_event_logger (stderr);
926 quicly_ctx->transport_params.max_data = QUIC_INT_MAX;
927 quicly_ctx->transport_params.max_streams_uni = (uint64_t) 1 << 60;
928 quicly_ctx->transport_params.max_streams_bidi = (uint64_t) 1 << 60;
929 quicly_ctx->transport_params.max_stream_data.bidi_local = (QUIC_FIFO_SIZE - 1); /* max_enq is SIZE - 1 */
930 quicly_ctx->transport_params.max_stream_data.bidi_remote = (QUIC_FIFO_SIZE - 1); /* max_enq is SIZE - 1 */
931 quicly_ctx->transport_params.max_stream_data.uni = QUIC_INT_MAX;
933 quicly_ctx->tls->random_bytes (quicly_ctx_data->cid_key, 16);
934 quicly_ctx_data->cid_key[16] = 0;
936 ptls_iovec_init (quicly_ctx_data->cid_key,
937 strlen (quicly_ctx_data->cid_key));
938 quicly_ctx->cid_encryptor =
939 quicly_new_default_cid_encryptor (&ptls_openssl_bfecb,
940 &ptls_openssl_sha256, key_vec);
943 if (app->tls_key != NULL && app->tls_cert != NULL)
945 if (load_bio_private_key (quicly_ctx->tls, (char *) app->tls_key))
947 QUIC_DBG (1, "failed to read private key from app configuration\n");
949 if (load_bio_certificate_chain (quicly_ctx->tls,
950 (char *) app->tls_cert))
952 QUIC_DBG (1, "failed to load certificate\n");
957 /*****************************************************************************
959 * BEGIN TRANSPORT PROTO FUNCTIONS
961 *****************************************************************************/
964 quic_connect_new_stream (session_t * quic_session, u32 opaque)
966 uint64_t quic_session_handle;
967 session_t *stream_session;
968 quic_stream_data_t *stream_data;
969 quicly_stream_t *stream;
971 app_worker_t *app_wrk;
972 quic_ctx_t *qctx, *sctx;
976 /* Find base session to which the user want to attach a stream */
977 quic_session_handle = session_handle (quic_session);
978 QUIC_DBG (2, "Opening new stream (qsession %u)", quic_session_handle);
980 if (session_type_transport_proto (quic_session->session_type) !=
981 TRANSPORT_PROTO_QUIC)
983 QUIC_DBG (1, "received incompatible session");
987 app_wrk = app_worker_get_if_valid (quic_session->app_wrk_index);
990 QUIC_DBG (1, "Invalid app worker :(");
994 sctx_index = quic_ctx_alloc (quic_session->thread_index); /* Allocate before we get pointers */
995 sctx = quic_ctx_get (sctx_index, quic_session->thread_index);
997 quic_ctx_get (quic_session->connection_index, quic_session->thread_index);
998 if (quic_ctx_is_stream (qctx))
1000 QUIC_DBG (1, "session is a stream");
1001 quic_ctx_free (sctx);
1005 sctx->parent_app_wrk_id = qctx->parent_app_wrk_id;
1006 sctx->parent_app_id = qctx->parent_app_id;
1007 sctx->quic_connection_ctx_id = qctx->c_c_index;
1008 sctx->c_c_index = sctx_index;
1009 sctx->c_flags |= TRANSPORT_CONNECTION_F_NO_LOOKUP;
1010 sctx->flags |= QUIC_F_IS_STREAM;
1014 if (!conn || !quicly_connection_is_ready (conn))
1017 if ((rv = quicly_open_stream (conn, &stream, 0 /* uni */ )))
1019 QUIC_DBG (2, "Stream open failed with %d", rv);
1022 sctx->stream = stream;
1024 QUIC_DBG (2, "Opened stream %d, creating session", stream->stream_id);
1026 stream_session = session_alloc (qctx->c_thread_index);
1027 QUIC_DBG (2, "Allocated stream_session 0x%lx ctx %u",
1028 session_handle (stream_session), sctx_index);
1029 stream_session->app_wrk_index = app_wrk->wrk_index;
1030 stream_session->connection_index = sctx_index;
1031 stream_session->listener_handle = quic_session_handle;
1032 stream_session->session_type =
1033 session_type_from_proto_and_ip (TRANSPORT_PROTO_QUIC, qctx->udp_is_ip4);
1035 sctx->c_s_index = stream_session->session_index;
1037 if (app_worker_init_connected (app_wrk, stream_session))
1039 QUIC_DBG (1, "failed to app_worker_init_connected");
1040 quicly_reset_stream (stream, QUIC_APP_ALLOCATION_ERROR);
1041 session_free_w_fifos (stream_session);
1042 quic_ctx_free (sctx);
1043 return app_worker_connect_notify (app_wrk, NULL, opaque);
1046 svm_fifo_add_want_deq_ntf (stream_session->rx_fifo,
1047 SVM_FIFO_WANT_DEQ_NOTIF_IF_FULL |
1048 SVM_FIFO_WANT_DEQ_NOTIF_IF_EMPTY);
1050 stream_session->session_state = SESSION_STATE_READY;
1051 if (app_worker_connect_notify (app_wrk, stream_session, opaque))
1053 QUIC_DBG (1, "failed to notify app");
1054 quicly_reset_stream (stream, QUIC_APP_CONNECT_NOTIFY_ERROR);
1055 session_free_w_fifos (stream_session);
1056 quic_ctx_free (sctx);
1059 stream_data = (quic_stream_data_t *) stream->data;
1060 stream_data->ctx_id = sctx->c_c_index;
1061 stream_data->thread_index = sctx->c_thread_index;
1062 stream_data->app_rx_data_len = 0;
1067 quic_connect_new_connection (session_endpoint_cfg_t * sep)
1069 vnet_connect_args_t _cargs = { {}, }, *cargs = &_cargs;
1070 quic_main_t *qm = &quic_main;
1072 app_worker_t *app_wrk;
1077 ctx_index = quic_ctx_alloc (vlib_get_thread_index ());
1078 ctx = quic_ctx_get (ctx_index, vlib_get_thread_index ());
1079 ctx->parent_app_wrk_id = sep->app_wrk_index;
1080 ctx->c_s_index = QUIC_SESSION_INVALID;
1081 ctx->c_c_index = ctx_index;
1082 ctx->udp_is_ip4 = sep->is_ip4;
1083 ctx->timer_handle = QUIC_TIMER_HANDLE_INVALID;
1084 ctx->conn_state = QUIC_CONN_STATE_HANDSHAKE;
1085 ctx->client_opaque = sep->opaque;
1086 ctx->c_flags |= TRANSPORT_CONNECTION_F_NO_LOOKUP;
1089 ctx->srv_hostname = format (0, "%v", sep->hostname);
1090 vec_terminate_c_string (ctx->srv_hostname);
1094 /* needed by quic for crypto + determining client / server */
1096 format (0, "%U", format_ip46_address, &sep->ip, sep->is_ip4);
1099 clib_memcpy (&cargs->sep, sep, sizeof (session_endpoint_cfg_t));
1100 cargs->sep.transport_proto = TRANSPORT_PROTO_UDPC;
1101 cargs->app_index = qm->app_index;
1102 cargs->api_context = ctx_index;
1104 app_wrk = app_worker_get (sep->app_wrk_index);
1105 app = application_get (app_wrk->app_index);
1106 ctx->parent_app_id = app_wrk->app_index;
1107 cargs->sep_ext.ns_index = app->ns_index;
1109 quic_store_quicly_ctx (app, 1 /* is client */ );
1111 if ((error = vnet_connect (cargs)))
1118 quic_connect (transport_endpoint_cfg_t * tep)
1120 QUIC_DBG (2, "Called quic_connect");
1121 session_endpoint_cfg_t *sep = (session_endpoint_cfg_t *) tep;
1122 session_t *quic_session;
1123 sep = (session_endpoint_cfg_t *) tep;
1125 quic_session = session_get_from_handle_if_valid (sep->parent_handle);
1127 return quic_connect_new_stream (quic_session, sep->opaque);
1129 return quic_connect_new_connection (sep);
1133 quic_proto_on_close (u32 ctx_index, u32 thread_index)
1135 quic_ctx_t *ctx = quic_ctx_get_if_valid (ctx_index, thread_index);
1139 session_t *stream_session =
1140 session_get (ctx->c_s_index, ctx->c_thread_index);
1141 clib_warning ("Closing session 0x%lx", session_handle (stream_session));
1143 if (quic_ctx_is_stream (ctx))
1145 quicly_stream_t *stream = ctx->stream;
1146 quicly_reset_stream (stream, QUIC_APP_ERROR_CLOSE_NOTIFY);
1147 quic_send_packets (ctx);
1151 switch (ctx->conn_state)
1153 case QUIC_CONN_STATE_READY:
1154 ctx->conn_state = QUIC_CONN_STATE_ACTIVE_CLOSING;
1155 quicly_conn_t *conn = ctx->conn;
1156 /* Start connection closing. Keep sending packets until quicly_send
1157 returns QUICLY_ERROR_FREE_CONNECTION */
1158 quicly_close (conn, QUIC_APP_ERROR_CLOSE_NOTIFY, "Closed by peer");
1159 /* This also causes all streams to be closed (and the cb called) */
1160 quic_send_packets (ctx);
1162 case QUIC_CONN_STATE_PASSIVE_CLOSING:
1163 ctx->conn_state = QUIC_CONN_STATE_PASSIVE_CLOSING_APP_CLOSED;
1164 /* send_packets will eventually return an error, we delete the conn at
1167 case QUIC_CONN_STATE_PASSIVE_CLOSING_QUIC_CLOSED:
1168 quic_connection_delete (ctx);
1171 QUIC_DBG (0, "BUG");
1177 quic_start_listen (u32 quic_listen_session_index, transport_endpoint_t * tep)
1179 vnet_listen_args_t _bargs, *args = &_bargs;
1180 quic_main_t *qm = &quic_main;
1181 session_handle_t udp_handle;
1182 session_endpoint_cfg_t *sep;
1183 session_t *udp_listen_session;
1184 app_worker_t *app_wrk;
1188 app_listener_t *app_listener;
1190 sep = (session_endpoint_cfg_t *) tep;
1191 app_wrk = app_worker_get (sep->app_wrk_index);
1192 /* We need to call this because we call app_worker_init_connected in
1193 * quic_accept_stream, which assumes the connect segment manager exists */
1194 app_worker_alloc_connects_segment_manager (app_wrk);
1195 app = application_get (app_wrk->app_index);
1196 QUIC_DBG (2, "Called quic_start_listen for app %d", app_wrk->app_index);
1198 quic_store_quicly_ctx (app, 0 /* is_client */ );
1200 sep->transport_proto = TRANSPORT_PROTO_UDPC;
1201 memset (args, 0, sizeof (*args));
1202 args->app_index = qm->app_index;
1203 args->sep_ext = *sep;
1204 args->sep_ext.ns_index = app->ns_index;
1205 if (vnet_listen (args))
1208 lctx_index = quic_ctx_alloc (0);
1209 udp_handle = args->handle;
1210 app_listener = app_listener_get_w_handle (udp_handle);
1211 udp_listen_session = app_listener_get_session (app_listener);
1212 udp_listen_session->opaque = lctx_index;
1214 lctx = quic_ctx_get (lctx_index, 0);
1215 lctx->flags |= QUIC_F_IS_LISTENER;
1217 clib_memcpy (&lctx->c_rmt_ip, &args->sep.peer.ip, sizeof (ip46_address_t));
1218 clib_memcpy (&lctx->c_lcl_ip, &args->sep.ip, sizeof (ip46_address_t));
1219 lctx->c_rmt_port = args->sep.peer.port;
1220 lctx->c_lcl_port = args->sep.port;
1221 lctx->c_is_ip4 = args->sep.is_ip4;
1222 lctx->c_fib_index = args->sep.fib_index;
1223 lctx->c_proto = TRANSPORT_PROTO_QUIC;
1224 lctx->parent_app_wrk_id = sep->app_wrk_index;
1225 lctx->parent_app_id = app_wrk->app_index;
1226 lctx->udp_session_handle = udp_handle;
1227 lctx->c_s_index = quic_listen_session_index;
1229 QUIC_DBG (2, "Listening UDP session 0x%lx",
1230 session_handle (udp_listen_session));
1231 QUIC_DBG (2, "Listening QUIC session 0x%lx", quic_listen_session_index);
1236 quic_stop_listen (u32 lctx_index)
1238 QUIC_DBG (2, "Called quic_stop_listen");
1240 lctx = quic_ctx_get (lctx_index, 0);
1241 ASSERT (quic_ctx_is_listener (lctx));
1242 vnet_unlisten_args_t a = {
1243 .handle = lctx->udp_session_handle,
1244 .app_index = quic_main.app_index,
1245 .wrk_map_index = 0 /* default wrk */
1247 if (vnet_unlisten (&a))
1248 clib_warning ("unlisten errored");
1250 /* TODO: crypto state cleanup */
1252 quic_ctx_free (lctx);
1256 static transport_connection_t *
1257 quic_connection_get (u32 ctx_index, u32 thread_index)
1260 ctx = quic_ctx_get (ctx_index, thread_index);
1261 return &ctx->connection;
1264 static transport_connection_t *
1265 quic_listener_get (u32 listener_index)
1267 QUIC_DBG (2, "Called quic_listener_get");
1269 ctx = quic_ctx_get (listener_index, 0);
1270 return &ctx->connection;
1274 format_quic_ctx (u8 * s, va_list * args)
1276 quic_ctx_t *ctx = va_arg (*args, quic_ctx_t *);
1277 u32 verbose = va_arg (*args, u32);
1282 str = format (str, "[#%d][Q] ", ctx->c_thread_index);
1284 if (quic_ctx_is_listener (ctx))
1285 str = format (str, "Listener, UDP %ld", ctx->udp_session_handle);
1286 else if (quic_ctx_is_stream (ctx))
1287 str = format (str, "Stream %ld conn %d",
1288 ctx->stream->stream_id, ctx->quic_connection_ctx_id);
1289 else /* connection */
1290 str = format (str, "Conn %d UDP %d", ctx->c_c_index,
1291 ctx->udp_session_handle);
1293 str = format (str, " app %d wrk %d", ctx->parent_app_id,
1294 ctx->parent_app_wrk_id);
1297 s = format (s, "%-50s%-15d", str, ctx->conn_state);
1299 s = format (s, "%s\n", str);
1305 format_quic_connection (u8 * s, va_list * args)
1307 u32 qc_index = va_arg (*args, u32);
1308 u32 thread_index = va_arg (*args, u32);
1309 u32 verbose = va_arg (*args, u32);
1310 quic_ctx_t *ctx = quic_ctx_get (qc_index, thread_index);
1311 s = format (s, "%U", format_quic_ctx, ctx, verbose);
1316 format_quic_half_open (u8 * s, va_list * args)
1318 u32 qc_index = va_arg (*args, u32);
1319 u32 thread_index = va_arg (*args, u32);
1320 quic_ctx_t *ctx = quic_ctx_get (qc_index, thread_index);
1322 format (s, "[#%d][Q] half-open app %u", thread_index, ctx->parent_app_id);
1328 format_quic_listener (u8 * s, va_list * args)
1330 u32 tci = va_arg (*args, u32);
1331 u32 thread_index = va_arg (*args, u32);
1332 u32 verbose = va_arg (*args, u32);
1333 quic_ctx_t *ctx = quic_ctx_get (tci, thread_index);
1334 s = format (s, "%U", format_quic_ctx, ctx, verbose);
1338 /*****************************************************************************
1339 * END TRANSPORT PROTO FUNCTIONS
1341 * START SESSION CALLBACKS
1342 * Called from UDP layer
1343 *****************************************************************************/
1346 quic_build_sockaddr (struct sockaddr *sa, socklen_t * salen,
1347 ip46_address_t * addr, u16 port, u8 is_ip4)
1351 struct sockaddr_in *sa4 = (struct sockaddr_in *) sa;
1352 sa4->sin_family = AF_INET;
1353 sa4->sin_port = port;
1354 sa4->sin_addr.s_addr = addr->ip4.as_u32;
1355 *salen = sizeof (struct sockaddr_in);
1359 struct sockaddr_in6 *sa6 = (struct sockaddr_in6 *) sa;
1360 sa6->sin6_family = AF_INET6;
1361 sa6->sin6_port = port;
1362 clib_memcpy (&sa6->sin6_addr, &addr->ip6, 16);
1363 *salen = sizeof (struct sockaddr_in6);
1368 quic_on_client_connected (quic_ctx_t * ctx)
1370 session_t *quic_session;
1371 app_worker_t *app_wrk;
1372 u32 ctx_id = ctx->c_c_index;
1373 u32 thread_index = ctx->c_thread_index;
1376 app_wrk = app_worker_get_if_valid (ctx->parent_app_wrk_id);
1379 quic_disconnect_transport (ctx);
1383 quic_session = session_alloc (thread_index);
1385 QUIC_DBG (2, "Allocated quic session 0x%lx", session_handle (quic_session));
1386 ctx->c_s_index = quic_session->session_index;
1387 quic_session->app_wrk_index = ctx->parent_app_wrk_id;
1388 quic_session->connection_index = ctx->c_c_index;
1389 quic_session->listener_handle = SESSION_INVALID_HANDLE;
1390 quic_session->session_type =
1391 session_type_from_proto_and_ip (TRANSPORT_PROTO_QUIC, ctx->udp_is_ip4);
1393 if (app_worker_init_connected (app_wrk, quic_session))
1395 QUIC_DBG (1, "failed to app_worker_init_connected");
1396 quic_proto_on_close (ctx_id, thread_index);
1397 return app_worker_connect_notify (app_wrk, NULL, ctx->client_opaque);
1400 quic_session->session_state = SESSION_STATE_CONNECTING;
1401 if ((rv = app_worker_connect_notify (app_wrk, quic_session,
1402 ctx->client_opaque)))
1404 QUIC_DBG (1, "failed to notify app %d", rv);
1405 quic_proto_on_close (ctx_id, thread_index);
1409 /* If the app opens a stream in its callback it may invalidate ctx */
1410 ctx = quic_ctx_get (ctx_id, thread_index);
1411 quic_session->session_state = SESSION_STATE_LISTENING;
1417 quic_receive_connection (void *arg)
1419 u32 new_ctx_id, thread_index = vlib_get_thread_index ();
1420 quic_ctx_t *temp_ctx, *new_ctx;
1421 clib_bihash_kv_16_8_t kv;
1422 quicly_conn_t *conn;
1423 session_t *udp_session;
1426 new_ctx_id = quic_ctx_alloc (thread_index);
1427 new_ctx = quic_ctx_get (new_ctx_id, thread_index);
1429 QUIC_DBG (2, "Received conn %u (now %u)", temp_ctx->c_thread_index,
1433 memcpy (new_ctx, temp_ctx, sizeof (quic_ctx_t));
1434 clib_mem_free (temp_ctx);
1436 new_ctx->c_thread_index = thread_index;
1437 new_ctx->c_c_index = new_ctx_id;
1439 conn = new_ctx->conn;
1440 quic_store_conn_ctx (conn, new_ctx);
1441 quic_make_connection_key (&kv, quicly_get_master_id (conn));
1442 kv.value = ((u64) thread_index) << 32 | (u64) new_ctx_id;
1443 QUIC_DBG (2, "Registering conn with id %lu %lu", kv.key[0], kv.key[1]);
1444 clib_bihash_add_del_16_8 (&quic_main.connection_hash, &kv, 1 /* is_add */ );
1445 new_ctx->timer_handle = QUIC_TIMER_HANDLE_INVALID;
1446 quic_update_timer (new_ctx);
1448 /* Trigger write on this connection if necessary */
1449 udp_session = session_get_from_handle (new_ctx->udp_session_handle);
1450 if (svm_fifo_max_dequeue (udp_session->tx_fifo))
1451 if (session_send_io_evt_to_thread (udp_session->tx_fifo,
1453 QUIC_DBG (4, "Cannot send TX event");
1457 quic_transfer_connection (u32 ctx_index, u32 dest_thread)
1459 tw_timer_wheel_1t_3w_1024sl_ov_t *tw;
1460 quic_ctx_t *ctx, *temp_ctx;
1461 u32 thread_index = vlib_get_thread_index ();
1463 QUIC_DBG (2, "Transferring conn %u to thread %u", ctx_index, dest_thread);
1465 temp_ctx = clib_mem_alloc (sizeof (quic_ctx_t));
1467 ctx = quic_ctx_get (ctx_index, thread_index);
1469 memcpy (temp_ctx, ctx, sizeof (quic_ctx_t));
1471 /* Remove from timer wheel and thread-local pool */
1472 if (ctx->timer_handle != QUIC_TIMER_HANDLE_INVALID)
1474 tw = &quic_main.wrk_ctx[thread_index].timer_wheel;
1475 tw_timer_stop_1t_3w_1024sl_ov (tw, ctx->timer_handle);
1477 quic_ctx_free (ctx);
1479 /* Send connection to destination thread */
1480 session_send_rpc_evt_to_thread (dest_thread, quic_receive_connection,
1485 quic_session_connected_callback (u32 quic_app_index, u32 ctx_index,
1486 session_t * udp_session, u8 is_fail)
1488 QUIC_DBG (2, "QSession is now connected (id %u)",
1489 udp_session->session_index);
1490 /* This should always be called before quic_connect returns since UDP always
1491 * connects instantly. */
1492 clib_bihash_kv_16_8_t kv;
1493 struct sockaddr_in6 sa6;
1494 struct sockaddr *sa = (struct sockaddr *) &sa6;
1496 transport_connection_t *tc;
1497 app_worker_t *app_wrk;
1498 quicly_conn_t *conn;
1500 u32 thread_index = vlib_get_thread_index ();
1502 quicly_context_t *quicly_ctx;
1505 ctx = quic_ctx_get (ctx_index, thread_index);
1509 app_wrk = app_worker_get_if_valid (ctx->parent_app_wrk_id);
1512 api_context = ctx->c_s_index;
1513 app_worker_connect_notify (app_wrk, 0, api_context);
1518 ctx->c_thread_index = thread_index;
1519 ctx->c_c_index = ctx_index;
1521 QUIC_DBG (2, "Quic connect returned %u. New ctx [%u]%x",
1522 is_fail, thread_index, (ctx) ? ctx_index : ~0);
1524 ctx->udp_session_handle = session_handle (udp_session);
1525 udp_session->opaque = ctx->parent_app_id;
1527 /* Init QUIC lib connection
1528 * Generate required sockaddr & salen */
1529 tc = session_get_transport (udp_session);
1530 quic_build_sockaddr (sa, &salen, &tc->rmt_ip, tc->rmt_port, tc->is_ip4);
1532 quicly_ctx = quic_get_quicly_ctx_from_ctx (ctx);
1533 ret = quicly_connect (&ctx->conn, quicly_ctx, (char *) ctx->srv_hostname,
1534 sa, salen, &quic_main.next_cid,
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_session_disconnect_callback (session_t * s)
1560 clib_warning ("UDP session disconnected???");
1564 quic_session_reset_callback (session_t * s)
1566 clib_warning ("UDP session reset???");
1570 quic_session_migrate_callback (session_t * s, session_handle_t new_sh)
1573 * TODO we need better way to get the connection from the session
1574 * This will become possible once we stop storing the app id in the UDP
1577 u32 thread_index = vlib_get_thread_index ();
1578 u64 old_session_handle = session_handle (s);
1579 u32 new_thread = session_thread_from_handle (new_sh);
1582 QUIC_DBG (1, "Session %x migrated to %lx", s->session_index, new_sh);
1584 pool_foreach (ctx, quic_main.ctx_pool[thread_index],
1586 if (ctx->udp_session_handle == old_session_handle)
1588 /* Right ctx found, move associated conn */
1589 QUIC_DBG (5, "Found right ctx: %x", ctx->c_c_index);
1590 ctx->udp_session_handle = new_sh;
1591 quic_transfer_connection (ctx->c_c_index, new_thread);
1596 QUIC_DBG (0, "BUG: Connection to migrate not found");
1600 quic_session_accepted_callback (session_t * udp_session)
1602 /* New UDP connection, try to accept it */
1605 quic_ctx_t *ctx, *lctx;
1606 session_t *udp_listen_session;
1607 u32 thread_index = vlib_get_thread_index ();
1609 udp_listen_session =
1610 listen_session_get_from_handle (udp_session->listener_handle);
1612 ctx_index = quic_ctx_alloc (thread_index);
1613 ctx = quic_ctx_get (ctx_index, thread_index);
1614 ctx->c_thread_index = udp_session->thread_index;
1615 ctx->c_c_index = ctx_index;
1616 ctx->c_s_index = QUIC_SESSION_INVALID;
1617 ctx->udp_session_handle = session_handle (udp_session);
1618 QUIC_DBG (2, "ACCEPTED UDP 0x%lx", ctx->udp_session_handle);
1619 ctx->listener_ctx_id = udp_listen_session->opaque;
1620 lctx = quic_ctx_get (udp_listen_session->opaque,
1621 udp_listen_session->thread_index);
1622 ctx->udp_is_ip4 = lctx->c_is_ip4;
1623 ctx->parent_app_id = lctx->parent_app_id;
1624 ctx->parent_app_wrk_id = lctx->parent_app_wrk_id;
1625 ctx->timer_handle = QUIC_TIMER_HANDLE_INVALID;
1626 ctx->conn_state = QUIC_CONN_STATE_OPENED;
1627 ctx->c_flags |= TRANSPORT_CONNECTION_F_NO_LOOKUP;
1629 udp_session->opaque = ctx->parent_app_id;
1631 /* Put this ctx in the "opening" pool */
1632 pool_get (quic_main.wrk_ctx[ctx->c_thread_index].opening_ctx_pool,
1634 *pool_index = ctx_index;
1636 /* TODO timeout to delete these if they never connect */
1641 quic_add_segment_callback (u32 client_index, u64 seg_handle)
1643 QUIC_DBG (2, "Called quic_add_segment_callback");
1644 QUIC_DBG (2, "NOT IMPLEMENTED");
1645 /* No-op for builtin */
1650 quic_del_segment_callback (u32 client_index, u64 seg_handle)
1652 QUIC_DBG (2, "Called quic_del_segment_callback");
1653 QUIC_DBG (2, "NOT IMPLEMENTED");
1654 /* No-op for builtin */
1659 quic_custom_app_rx_callback (transport_connection_t * tc)
1662 session_t *stream_session = session_get (tc->s_index, tc->thread_index);
1663 QUIC_DBG (3, "Received app READ notification");
1664 quic_ack_rx_data (stream_session);
1665 svm_fifo_reset_has_deq_ntf (stream_session->rx_fifo);
1667 /* Need to send packets (acks may never be sent otherwise) */
1668 ctx = quic_ctx_get (stream_session->connection_index,
1669 stream_session->thread_index);
1670 quic_send_packets (ctx);
1675 quic_custom_tx_callback (void *s, u32 max_burst_size)
1677 session_t *stream_session = (session_t *) s;
1678 quicly_stream_t *stream;
1683 (stream_session->session_state >= SESSION_STATE_TRANSPORT_CLOSING))
1686 quic_ctx_get (stream_session->connection_index,
1687 stream_session->thread_index);
1688 if (PREDICT_FALSE (!quic_ctx_is_stream (ctx)))
1690 goto tx_end; /* Most probably a reschedule */
1693 QUIC_DBG (3, "Stream TX event");
1694 quic_ack_rx_data (stream_session);
1695 if (!svm_fifo_max_dequeue (stream_session->tx_fifo))
1698 stream = ctx->stream;
1699 if (!quicly_sendstate_is_open (&stream->sendstate))
1701 QUIC_DBG (1, "Warning: tried to send on closed stream");
1705 if ((rv = quicly_stream_sync_sendbuf (stream, 1)) != 0)
1709 quic_send_packets (ctx);
1715 * Returns 0 if a matching connection is found and is on the right thread.
1716 * Otherwise returns -1.
1717 * If a connection is found, even on the wrong thread, ctx_thread and ctx_index
1721 quic_find_packet_ctx (u32 * ctx_thread, u32 * ctx_index,
1722 struct sockaddr *sa, socklen_t salen,
1723 quicly_decoded_packet_t * packet,
1724 u32 caller_thread_index)
1727 quicly_conn_t *conn_;
1728 clib_bihash_kv_16_8_t kv;
1729 clib_bihash_16_8_t *h;
1731 h = &quic_main.connection_hash;
1732 quic_make_connection_key (&kv, &packet->cid.dest.plaintext);
1733 QUIC_DBG (3, "Searching conn with id %lu %lu", kv.key[0], kv.key[1]);
1735 if (clib_bihash_search_16_8 (h, &kv, &kv) == 0)
1737 u32 index = kv.value & UINT32_MAX;
1738 u32 thread_id = kv.value >> 32;
1739 /* Check if this connection belongs to this thread, otherwise
1740 * ask for it to be moved */
1741 if (thread_id != caller_thread_index)
1743 QUIC_DBG (2, "Connection is on wrong thread");
1744 /* Cannot make full check with quicly_is_destination... */
1746 *ctx_thread = thread_id;
1749 ctx_ = quic_ctx_get (index, vlib_get_thread_index ());
1751 if (conn_ && quicly_is_destination (conn_, sa, salen, packet))
1753 QUIC_DBG (3, "Connection found");
1755 *ctx_thread = thread_id;
1759 QUIC_DBG (3, "connection not found");
1764 quic_create_quic_session (quic_ctx_t * ctx)
1766 session_t *quic_session;
1767 app_worker_t *app_wrk;
1771 quic_session = session_alloc (ctx->c_thread_index);
1772 QUIC_DBG (2, "Allocated quic_session, 0x%lx ctx %u",
1773 session_handle (quic_session), ctx->c_c_index);
1774 quic_session->session_state = SESSION_STATE_LISTENING;
1775 ctx->c_s_index = quic_session->session_index;
1777 lctx = quic_ctx_get (ctx->listener_ctx_id, 0);
1779 quic_session->app_wrk_index = lctx->parent_app_wrk_id;
1780 quic_session->connection_index = ctx->c_c_index;
1781 quic_session->session_type =
1782 session_type_from_proto_and_ip (TRANSPORT_PROTO_QUIC, ctx->udp_is_ip4);
1783 quic_session->listener_handle = lctx->c_s_index;
1785 /* TODO: don't alloc fifos when we don't transfer data on this session
1786 * but we still need fifos for the events? */
1787 if ((rv = app_worker_init_accepted (quic_session)))
1789 QUIC_DBG (1, "failed to allocate fifos");
1790 session_free (quic_session);
1793 app_wrk = app_worker_get (quic_session->app_wrk_index);
1794 if ((rv = app_worker_accept_notify (app_wrk, quic_session)))
1796 QUIC_DBG (1, "failed to notify accept worker app");
1803 quic_create_connection (u32 ctx_index, struct sockaddr *sa,
1804 socklen_t salen, quicly_decoded_packet_t packet)
1806 clib_bihash_kv_16_8_t kv;
1808 quicly_conn_t *conn;
1809 u32 thread_index = vlib_get_thread_index ();
1810 quicly_context_t *quicly_ctx;
1813 /* new connection, accept and create context if packet is valid
1814 * TODO: check if socket is actually listening? */
1815 ctx = quic_ctx_get (ctx_index, thread_index);
1816 quicly_ctx = quic_get_quicly_ctx_from_ctx (ctx);
1817 if ((rv = quicly_accept (&conn, quicly_ctx, sa, salen,
1818 &packet, ptls_iovec_init (NULL, 0),
1819 &quic_main.next_cid, NULL)))
1821 /* Invalid packet, pass */
1822 assert (conn == NULL);
1823 QUIC_DBG (1, "Accept failed with %d", rv);
1824 /* TODO: cleanup created quic ctx and UDP session */
1827 assert (conn != NULL);
1829 ++quic_main.next_cid.master_id;
1830 /* Save ctx handle in quicly connection */
1831 quic_store_conn_ctx (conn, ctx);
1833 ctx->conn_state = QUIC_CONN_STATE_HANDSHAKE;
1835 quic_create_quic_session (ctx);
1837 /* Register connection in connections map */
1838 quic_make_connection_key (&kv, quicly_get_master_id (conn));
1839 kv.value = ((u64) thread_index) << 32 | (u64) ctx_index;
1840 clib_bihash_add_del_16_8 (&quic_main.connection_hash, &kv, 1 /* is_add */ );
1841 QUIC_DBG (2, "Registering conn with id %lu %lu", kv.key[0], kv.key[1]);
1843 return quic_send_packets (ctx);
1847 quic_reset_connection (u64 udp_session_handle,
1848 struct sockaddr *sa, socklen_t salen,
1849 quicly_decoded_packet_t packet)
1851 /* short header packet; potentially a dead connection. No need to check the
1852 * length of the incoming packet, because loop is prevented by authenticating
1853 * the CID (by checking node_id and thread_id). If the peer is also sending a
1854 * reset, then the next CID is highly likely to contain a non-authenticating
1856 QUIC_DBG (2, "Sending stateless reset");
1858 quicly_datagram_t *dgram;
1859 session_t *udp_session;
1860 quicly_context_t *quicly_ctx;
1861 if (packet.cid.dest.plaintext.node_id != 0
1862 || packet.cid.dest.plaintext.thread_id != 0)
1864 quicly_ctx = quic_get_quicly_ctx_from_udp (udp_session_handle);
1865 dgram = quicly_send_stateless_reset (quicly_ctx, sa, salen,
1866 &packet.cid.dest.plaintext);
1869 udp_session = session_get_from_handle (udp_session_handle);
1870 rv = quic_send_datagram (udp_session, dgram);
1871 if (svm_fifo_set_event (udp_session->tx_fifo))
1872 session_send_io_evt_to_thread (udp_session->tx_fifo, SESSION_IO_EVT_TX);
1876 typedef struct quic_rx_packet_ctx_
1878 quicly_decoded_packet_t packet;
1879 u8 data[QUIC_MAX_PACKET_SIZE];
1882 } quic_rx_packet_ctx_t;
1885 check_quic_client_connected (struct quic_rx_packet_ctx_ *quic_rx_ctx)
1887 /* ctx pointer may change if a new stream is opened */
1888 quic_ctx_t *ctx = quic_ctx_get (quic_rx_ctx->ctx_index,
1889 quic_rx_ctx->thread_index);
1890 /* Conn may be set to null if the connection is terminated */
1891 if (ctx->conn && ctx->conn_state == QUIC_CONN_STATE_HANDSHAKE)
1893 if (quicly_connection_is_ready (ctx->conn))
1895 ctx->conn_state = QUIC_CONN_STATE_READY;
1896 if (quicly_is_client (ctx->conn))
1898 quic_on_client_connected (ctx);
1906 quic_process_one_rx_packet (u64 udp_session_handle,
1907 quicly_context_t * quicly_ctx, svm_fifo_t * f,
1908 u32 * fifo_offset, u32 * max_packet, u32 packet_n,
1909 quic_rx_packet_ctx_t * packet_ctx)
1911 session_dgram_hdr_t ph;
1912 quic_ctx_t *ctx = NULL;
1914 struct sockaddr_in6 sa6;
1915 struct sockaddr *sa = (struct sockaddr *) &sa6;
1919 packet_ctx->thread_index = UINT32_MAX;
1920 packet_ctx->ctx_index = UINT32_MAX;
1921 u32 thread_index = vlib_get_thread_index ();
1922 u32 *opening_ctx_pool, *ctx_index_ptr;
1923 u32 cur_deq = svm_fifo_max_dequeue (f) - *fifo_offset;
1927 *max_packet = packet_n + 1;
1931 if (cur_deq < SESSION_CONN_HDR_LEN)
1933 QUIC_DBG (1, "Not enough data for even a header in RX");
1936 ret = svm_fifo_peek (f, *fifo_offset, SESSION_CONN_HDR_LEN, (u8 *) & ph);
1937 if (ret != SESSION_CONN_HDR_LEN)
1939 QUIC_DBG (1, "Not enough data for header in RX");
1942 ASSERT (ph.data_offset == 0);
1943 full_len = ph.data_length + SESSION_CONN_HDR_LEN;
1944 if (full_len > cur_deq)
1946 QUIC_DBG (1, "Not enough data in fifo RX");
1950 /* Quicly can read len bytes from the fifo at offset:
1951 * ph.data_offset + SESSION_CONN_HDR_LEN */
1953 svm_fifo_peek (f, SESSION_CONN_HDR_LEN + *fifo_offset, ph.data_length,
1955 if (ret != ph.data_length)
1957 QUIC_DBG (1, "Not enough data peeked in RX");
1962 quic_build_sockaddr (sa, &salen, &ph.rmt_ip, ph.rmt_port, ph.is_ip4);
1963 quicly_ctx = quic_get_quicly_ctx_from_udp (udp_session_handle);
1965 quicly_decode_packet (quicly_ctx, &packet_ctx->packet, packet_ctx->data,
1968 if (plen == SIZE_MAX)
1970 *fifo_offset += SESSION_CONN_HDR_LEN + ph.data_length;
1975 quic_find_packet_ctx (&packet_ctx->thread_index, &packet_ctx->ctx_index,
1976 sa, salen, &packet_ctx->packet, thread_index);
1979 ctx = quic_ctx_get (packet_ctx->ctx_index, thread_index);
1980 rv = quicly_receive (ctx->conn, &packet_ctx->packet);
1982 QUIC_DBG (1, "quicly_receive return error %d", rv);
1984 else if (packet_ctx->ctx_index != UINT32_MAX)
1986 /* Connection found but on wrong thread, ask move */
1987 *max_packet = packet_n + 1;
1990 else if ((packet_ctx->packet.octets.base[0] & QUICLY_PACKET_TYPE_BITMASK) ==
1991 QUICLY_PACKET_TYPE_INITIAL)
1993 /* Try to find matching "opening" ctx */
1994 opening_ctx_pool = quic_main.wrk_ctx[thread_index].opening_ctx_pool;
1997 pool_foreach (ctx_index_ptr, opening_ctx_pool,
1999 ctx = quic_ctx_get (*ctx_index_ptr, thread_index);
2000 if (ctx->udp_session_handle == udp_session_handle)
2002 /* Right ctx found, create conn & remove from pool */
2003 quic_create_connection(*ctx_index_ptr, sa, salen, packet_ctx->packet);
2004 pool_put (opening_ctx_pool, ctx_index_ptr);
2005 *max_packet = packet_n + 1;
2006 packet_ctx->thread_index = thread_index;
2007 packet_ctx->ctx_index = *ctx_index_ptr;
2015 quic_reset_connection (udp_session_handle, sa, salen,
2016 packet_ctx->packet);
2020 *fifo_offset += SESSION_CONN_HDR_LEN + ph.data_length;
2025 quic_app_rx_callback (session_t * udp_session)
2027 /* Read data from UDP rx_fifo and pass it to the quicly conn. */
2029 quic_ctx_t *ctx = NULL;
2032 u32 app_index = udp_session->opaque;
2033 u64 udp_session_handle = session_handle (udp_session);
2035 app = application_get_if_valid (app_index);
2036 u32 thread_index = vlib_get_thread_index ();
2037 quic_rx_packet_ctx_t packets_ctx[16];
2041 QUIC_DBG (1, "Got RX on detached app");
2042 /* TODO: close this session, cleanup state? */
2048 udp_session = session_get_from_handle (udp_session_handle); /* session alloc might have happened */
2049 f = udp_session->rx_fifo;
2050 max_deq = svm_fifo_max_dequeue (f);
2056 u32 fifo_offset = 0;
2057 u32 max_packets = 16;
2058 for (int i = 0; i < max_packets; i++)
2060 quic_process_one_rx_packet (udp_session_handle,
2061 (quicly_context_t *) app->quicly_ctx, f,
2062 &fifo_offset, &max_packets, i,
2066 for (int i = 0; i < max_packets; i++)
2068 if (packets_ctx[i].thread_index != thread_index)
2071 check_quic_client_connected (&packets_ctx[i]);
2073 quic_ctx_get (packets_ctx[i].ctx_index,
2074 packets_ctx[i].thread_index);
2075 quic_send_packets (ctx);
2077 svm_fifo_dequeue_drop (f, fifo_offset);
2084 quic_common_get_transport_endpoint (quic_ctx_t * ctx,
2085 transport_endpoint_t * tep, u8 is_lcl)
2087 session_t *udp_session;
2088 if (!quic_ctx_is_stream (ctx))
2090 udp_session = session_get_from_handle (ctx->udp_session_handle);
2091 session_get_endpoint (udp_session, tep, is_lcl);
2096 quic_get_transport_listener_endpoint (u32 listener_index,
2097 transport_endpoint_t * tep, u8 is_lcl)
2100 app_listener_t *app_listener;
2101 session_t *udp_listen_session;
2102 ctx = quic_ctx_get (listener_index, vlib_get_thread_index ());
2103 if (quic_ctx_is_listener (ctx))
2105 app_listener = app_listener_get_w_handle (ctx->udp_session_handle);
2106 udp_listen_session = app_listener_get_session (app_listener);
2107 return session_get_endpoint (udp_listen_session, tep, is_lcl);
2109 quic_common_get_transport_endpoint (ctx, tep, is_lcl);
2113 quic_get_transport_endpoint (u32 ctx_index, u32 thread_index,
2114 transport_endpoint_t * tep, u8 is_lcl)
2117 ctx = quic_ctx_get (ctx_index, thread_index);
2118 quic_common_get_transport_endpoint (ctx, tep, is_lcl);
2121 /*****************************************************************************
2122 * END TRANSPORT PROTO FUNCTIONS
2123 *****************************************************************************/
2126 static session_cb_vft_t quic_app_cb_vft = {
2127 .session_accept_callback = quic_session_accepted_callback,
2128 .session_disconnect_callback = quic_session_disconnect_callback,
2129 .session_connected_callback = quic_session_connected_callback,
2130 .session_reset_callback = quic_session_reset_callback,
2131 .session_migrate_callback = quic_session_migrate_callback,
2132 .add_segment_callback = quic_add_segment_callback,
2133 .del_segment_callback = quic_del_segment_callback,
2134 .builtin_app_rx_callback = quic_app_rx_callback,
2137 static const transport_proto_vft_t quic_proto = {
2138 .connect = quic_connect,
2139 .close = quic_proto_on_close,
2140 .start_listen = quic_start_listen,
2141 .stop_listen = quic_stop_listen,
2142 .get_connection = quic_connection_get,
2143 .get_listener = quic_listener_get,
2144 .update_time = quic_update_time,
2145 .app_rx_evt = quic_custom_app_rx_callback,
2146 .custom_tx = quic_custom_tx_callback,
2147 .format_connection = format_quic_connection,
2148 .format_half_open = format_quic_half_open,
2149 .format_listener = format_quic_listener,
2150 .get_transport_endpoint = quic_get_transport_endpoint,
2151 .get_transport_listener_endpoint = quic_get_transport_listener_endpoint,
2152 .transport_options = {
2153 .tx_type = TRANSPORT_TX_INTERNAL,
2154 .service_type = TRANSPORT_SERVICE_APP,
2160 quic_register_cipher_suite (quic_crypto_engine_t type,
2161 ptls_cipher_suite_t ** ciphers)
2163 quic_main_t *qm = &quic_main;
2164 vec_validate (qm->quic_ciphers, type);
2165 qm->quic_ciphers[type] = ciphers;
2168 static clib_error_t *
2169 quic_init (vlib_main_t * vm)
2171 u32 segment_size = 256 << 20;
2172 vlib_thread_main_t *vtm = vlib_get_thread_main ();
2173 tw_timer_wheel_1t_3w_1024sl_ov_t *tw;
2174 vnet_app_attach_args_t _a, *a = &_a;
2175 u64 options[APP_OPTIONS_N_OPTIONS];
2176 quic_main_t *qm = &quic_main;
2177 u32 fifo_size = QUIC_FIFO_SIZE;
2180 num_threads = 1 /* main thread */ + vtm->n_threads;
2182 memset (a, 0, sizeof (*a));
2183 memset (options, 0, sizeof (options));
2185 a->session_cb_vft = &quic_app_cb_vft;
2186 a->api_client_index = APP_INVALID_INDEX;
2187 a->options = options;
2188 a->name = format (0, "quic");
2189 a->options[APP_OPTIONS_SEGMENT_SIZE] = segment_size;
2190 a->options[APP_OPTIONS_ADD_SEGMENT_SIZE] = segment_size;
2191 a->options[APP_OPTIONS_RX_FIFO_SIZE] = fifo_size;
2192 a->options[APP_OPTIONS_TX_FIFO_SIZE] = fifo_size;
2193 a->options[APP_OPTIONS_FLAGS] = APP_OPTIONS_FLAGS_IS_BUILTIN;
2194 a->options[APP_OPTIONS_FLAGS] |= APP_OPTIONS_FLAGS_USE_GLOBAL_SCOPE;
2195 a->options[APP_OPTIONS_FLAGS] |= APP_OPTIONS_FLAGS_IS_TRANSPORT_APP;
2197 if (vnet_application_attach (a))
2199 clib_warning ("failed to attach quic app");
2200 return clib_error_return (0, "failed to attach quic app");
2203 vec_validate (qm->ctx_pool, num_threads - 1);
2204 vec_validate (qm->wrk_ctx, num_threads - 1);
2205 /* Timer wheels, one per thread. */
2206 for (i = 0; i < num_threads; i++)
2208 tw = &qm->wrk_ctx[i].timer_wheel;
2209 tw_timer_wheel_init_1t_3w_1024sl_ov (tw, quic_expired_timers_dispatch,
2210 1e-3 /* timer period 1ms */ , ~0);
2211 tw->last_run_time = vlib_time_now (vlib_get_main ());
2214 clib_bihash_init_16_8 (&qm->connection_hash, "quic connections", 1024,
2218 qm->app_index = a->app_index;
2219 qm->tstamp_ticks_per_clock = vm->clib_time.seconds_per_clock
2220 / QUIC_TSTAMP_RESOLUTION;
2221 qm->session_cache.super.cb = quic_encrypt_ticket_cb;
2223 transport_register_protocol (TRANSPORT_PROTO_QUIC, &quic_proto,
2224 FIB_PROTOCOL_IP4, ~0);
2225 transport_register_protocol (TRANSPORT_PROTO_QUIC, &quic_proto,
2226 FIB_PROTOCOL_IP6, ~0);
2228 quic_register_cipher_suite (CRYPTO_ENGINE_VPP, vpp_crypto_cipher_suites);
2229 quic_register_cipher_suite (CRYPTO_ENGINE_PICOTLS,
2230 ptls_openssl_cipher_suites);
2231 qm->default_cipher = CRYPTO_ENGINE_PICOTLS;
2236 VLIB_INIT_FUNCTION (quic_init);
2238 static clib_error_t *
2239 quic_plugin_crypto_command_fn (vlib_main_t * vm,
2240 unformat_input_t * input,
2241 vlib_cli_command_t * cmd)
2243 quic_main_t *qm = &quic_main;
2244 if (unformat_check_input (input) == UNFORMAT_END_OF_INPUT)
2245 return clib_error_return (0, "unknown input '%U'",
2246 format_unformat_error, input);
2247 if (unformat (input, "vpp"))
2248 qm->default_cipher = CRYPTO_ENGINE_VPP;
2249 else if (unformat (input, "picotls"))
2250 qm->default_cipher = CRYPTO_ENGINE_PICOTLS;
2252 return clib_error_return (0, "unknown input '%U'",
2253 format_unformat_error, input);
2258 VLIB_CLI_COMMAND(quic_plugin_crypto_command, static)=
2260 .path = "quic set crypto api",
2261 .short_help = "quic set crypto api [picotls, vpp]",
2262 .function = quic_plugin_crypto_command_fn,
2264 VLIB_PLUGIN_REGISTER () =
2266 .version = VPP_BUILD_VER,
2267 .description = "Quic transport protocol",
2268 .default_disabled = 1,
2273 * fd.io coding-style-patch-verification: ON
2276 * eval: (c-set-style "gnu")