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>
23 #include <openssl/pem.h>
25 #include <vppinfra/lock.h>
27 #include <quic/quic.h>
29 #include <quicly/defaults.h>
30 #include <picotls/openssl.h>
31 #include <picotls/pembase64.h>
33 static quic_main_t quic_main;
35 static void quic_update_timer (quic_ctx_t * ctx);
36 static void quic_connection_closed (u32 conn_index, u32 thread_index);
37 static void quic_proto_on_close (u32 ctx_index, u32 thread_index);
38 static int quic_connect_new_stream (session_endpoint_cfg_t * sep);
39 static int quic_connect_new_connection (session_endpoint_cfg_t * sep);
41 static int64_t quic_get_time (quicly_now_t * self);
42 static quicly_now_t quicly_vpp_now_cb = { quic_get_time };
44 static void quic_transfer_connection (u32 ctx_index, u32 dest_thread);
46 #define QUIC_TIMER_HANDLE_INVALID ((u32) ~0)
47 #define QUIC_SESSION_INVALID ((u32) ~0 - 1)
48 #define QUIC_MAX_PACKET_SIZE 1280
50 #define QUIC_INT_MAX 0x3FFFFFFFFFFFFFFF
52 /* Taken from quicly.c */
53 #define QUICLY_QUIC_BIT 0x40
55 #define QUICLY_PACKET_TYPE_INITIAL (QUICLY_LONG_HEADER_BIT | QUICLY_QUIC_BIT | 0)
56 #define QUICLY_PACKET_TYPE_0RTT (QUICLY_LONG_HEADER_BIT | QUICLY_QUIC_BIT | 0x10)
57 #define QUICLY_PACKET_TYPE_HANDSHAKE (QUICLY_LONG_HEADER_BIT | QUICLY_QUIC_BIT | 0x20)
58 #define QUICLY_PACKET_TYPE_RETRY (QUICLY_LONG_HEADER_BIT | QUICLY_QUIC_BIT | 0x30)
59 #define QUICLY_PACKET_TYPE_BITMASK 0xf0
60 #define QUIC_FIFO_SIZE (64 << 10)
62 #define QUIC_ERROR_FULL_FIFO 0xff10
63 #define QUIC_APP_ERROR_NONE QUICLY_ERROR_FROM_APPLICATION_ERROR_CODE(0x1)
64 #define QUIC_APP_ALLOCATION_ERROR QUICLY_ERROR_FROM_APPLICATION_ERROR_CODE(0x1)
65 #define QUIC_APP_ACCEPT_NOTIFY_ERROR QUICLY_ERROR_FROM_APPLICATION_ERROR_CODE(0x2)
66 #define QUIC_APP_CONNECT_NOTIFY_ERROR QUICLY_ERROR_FROM_APPLICATION_ERROR_CODE(0x3)
69 quic_format_err (u64 code)
73 case QUIC_ERROR_FULL_FIFO:
75 case QUICLY_ERROR_PACKET_IGNORED:
76 return "QUICLY_ERROR_PACKET_IGNORED";
77 case QUICLY_ERROR_SENDBUF_FULL:
78 return "QUICLY_ERROR_SENDBUF_FULL";
79 case QUICLY_ERROR_FREE_CONNECTION:
80 return "QUICLY_ERROR_FREE_CONNECTION";
81 case QUICLY_ERROR_RECEIVED_STATELESS_RESET:
82 return "QUICLY_ERROR_RECEIVED_STATELESS_RESET";
83 case QUICLY_TRANSPORT_ERROR_NONE:
84 return "QUICLY_TRANSPORT_ERROR_NONE";
85 case QUICLY_TRANSPORT_ERROR_INTERNAL:
86 return "QUICLY_TRANSPORT_ERROR_INTERNAL";
87 case QUICLY_TRANSPORT_ERROR_SERVER_BUSY:
88 return "QUICLY_TRANSPORT_ERROR_SERVER_BUSY";
89 case QUICLY_TRANSPORT_ERROR_FLOW_CONTROL:
90 return "QUICLY_TRANSPORT_ERROR_FLOW_CONTROL";
91 case QUICLY_TRANSPORT_ERROR_STREAM_ID:
92 return "QUICLY_TRANSPORT_ERROR_STREAM_ID";
93 case QUICLY_TRANSPORT_ERROR_STREAM_STATE:
94 return "QUICLY_TRANSPORT_ERROR_STREAM_STATE";
95 case QUICLY_TRANSPORT_ERROR_FINAL_OFFSET:
96 return "QUICLY_TRANSPORT_ERROR_FINAL_OFFSET";
97 case QUICLY_TRANSPORT_ERROR_FRAME_ENCODING:
98 return "QUICLY_TRANSPORT_ERROR_FRAME_ENCODING";
99 case QUICLY_TRANSPORT_ERROR_TRANSPORT_PARAMETER:
100 return "QUICLY_TRANSPORT_ERROR_TRANSPORT_PARAMETER";
101 case QUICLY_TRANSPORT_ERROR_VERSION_NEGOTIATION:
102 return "QUICLY_TRANSPORT_ERROR_VERSION_NEGOTIATION";
103 case QUICLY_TRANSPORT_ERROR_PROTOCOL_VIOLATION:
104 return "QUICLY_TRANSPORT_ERROR_PROTOCOL_VIOLATION";
105 case QUICLY_TRANSPORT_ERROR_INVALID_MIGRATION:
106 return "QUICLY_TRANSPORT_ERROR_INVALID_MIGRATION";
107 case QUICLY_TRANSPORT_ERROR_TLS_ALERT_BASE:
108 return "QUICLY_TRANSPORT_ERROR_TLS_ALERT_BASE";
110 return "unknown error";
115 quic_ctx_alloc (u32 thread_index)
117 quic_main_t *qm = &quic_main;
120 pool_get (qm->ctx_pool[thread_index], ctx);
122 memset (ctx, 0, sizeof (quic_ctx_t));
123 ctx->c_thread_index = thread_index;
124 QUIC_DBG (1, "Allocated quic_ctx %u on thread %u",
125 ctx - qm->ctx_pool[thread_index], thread_index);
126 return ctx - qm->ctx_pool[thread_index];
130 quic_ctx_free (quic_ctx_t * ctx)
132 QUIC_DBG (2, "Free ctx %u", ctx->c_c_index);
133 u32 thread_index = ctx->c_thread_index;
135 memset (ctx, 0xfb, sizeof (*ctx));
136 pool_put (quic_main.ctx_pool[thread_index], ctx);
140 quic_ctx_get (u32 ctx_index, u32 thread_index)
142 return pool_elt_at_index (quic_main.ctx_pool[thread_index], ctx_index);
146 quic_get_conn_ctx (quicly_conn_t * conn)
149 conn_data = (u64) * quicly_get_data (conn);
150 return quic_ctx_get (conn_data & UINT32_MAX, conn_data >> 32);
154 quic_store_conn_ctx (quicly_conn_t * conn, quic_ctx_t * ctx)
156 *quicly_get_data (conn) =
157 (void *) (((u64) ctx->c_thread_index) << 32 | (u64) ctx->c_c_index);
161 quic_disconnect_transport (quic_ctx_t * ctx)
163 QUIC_DBG (2, "Called quic_disconnect_transport");
164 vnet_disconnect_args_t a = {
165 .handle = ctx->c_quic_ctx_id.udp_session_handle,
166 .app_index = quic_main.app_index,
169 if (vnet_disconnect_session (&a))
170 clib_warning ("UDP session disconnect errored");
174 quic_send_datagram (session_t * udp_session, quicly_datagram_t * packet)
177 session_dgram_hdr_t hdr;
180 transport_connection_t *tc;
182 len = packet->data.len;
183 f = udp_session->tx_fifo;
184 tc = session_get_transport (udp_session);
186 max_enqueue = svm_fifo_max_enqueue (f);
187 if (max_enqueue < SESSION_CONN_HDR_LEN + len)
189 QUIC_DBG (1, "Too much data to send, max_enqueue %u, len %u",
190 max_enqueue, len + SESSION_CONN_HDR_LEN);
191 return QUIC_ERROR_FULL_FIFO;
194 /* Build packet header for fifo */
195 hdr.data_length = len;
197 hdr.is_ip4 = tc->is_ip4;
198 clib_memcpy (&hdr.lcl_ip, &tc->lcl_ip, sizeof (ip46_address_t));
199 hdr.lcl_port = tc->lcl_port;
201 /* Read dest address from quicly-provided sockaddr */
204 ASSERT (packet->sa.sa_family == AF_INET);
205 struct sockaddr_in *sa4 = (struct sockaddr_in *) &packet->sa;
206 hdr.rmt_port = sa4->sin_port;
207 hdr.rmt_ip.ip4.as_u32 = sa4->sin_addr.s_addr;
211 ASSERT (packet->sa.sa_family == AF_INET6);
212 struct sockaddr_in6 *sa6 = (struct sockaddr_in6 *) &packet->sa;
213 hdr.rmt_port = sa6->sin6_port;
214 clib_memcpy (&hdr.rmt_ip.ip6, &sa6->sin6_addr, 16);
217 ret = svm_fifo_enqueue (f, sizeof (hdr), (u8 *) & hdr);
218 if (ret != sizeof (hdr))
220 QUIC_DBG (1, "Not enough space to enqueue header");
221 return QUIC_ERROR_FULL_FIFO;
223 ret = svm_fifo_enqueue (f, len, packet->data.base);
226 QUIC_DBG (1, "Not enough space to enqueue payload");
227 return QUIC_ERROR_FULL_FIFO;
232 #define QUIC_SEND_PACKET_VEC_SIZE 16
235 quic_sendable_packet_count (session_t * udp_session)
238 u32 packet_size = QUIC_MAX_PACKET_SIZE + SESSION_CONN_HDR_LEN;
239 max_enqueue = svm_fifo_max_enqueue (udp_session->tx_fifo);
240 return clib_min (max_enqueue / packet_size, QUIC_SEND_PACKET_VEC_SIZE);
244 quic_send_packets (quic_ctx_t * ctx)
246 quicly_datagram_t *packets[QUIC_SEND_PACKET_VEC_SIZE];
247 session_t *udp_session;
249 size_t num_packets, i, max_packets;
250 quicly_context_t *quicly_context;
251 app_worker_t *app_wrk;
255 /* We have sctx, get qctx */
256 if (ctx->c_quic_ctx_id.is_stream)
258 quic_ctx_get (ctx->c_quic_ctx_id.quic_connection_ctx_id,
259 ctx->c_thread_index);
261 ASSERT (!ctx->c_quic_ctx_id.is_stream);
264 session_get_from_handle_if_valid (ctx->c_quic_ctx_id.udp_session_handle);
268 conn = ctx->c_quic_ctx_id.conn;
273 /* TODO : quicly can assert it can send min_packets up to 2 */
274 if (quic_sendable_packet_count (udp_session) < 2)
277 app_wrk = app_worker_get_if_valid (ctx->c_quic_ctx_id.parent_app_wrk_id);
280 clib_warning ("Tried to send packets on non existing app worker %u",
281 ctx->c_quic_ctx_id.parent_app_wrk_id);
282 quic_connection_closed (ctx->c_c_index, ctx->c_thread_index);
285 app = application_get (app_wrk->app_index);
287 quicly_context = (quicly_context_t *) app->quicly_ctx;
290 max_packets = quic_sendable_packet_count (udp_session);
293 num_packets = max_packets;
294 if ((err = quicly_send (conn, packets, &num_packets)))
297 for (i = 0; i != num_packets; ++i)
299 if ((err = quic_send_datagram (udp_session, packets[i])))
302 quicly_context->packet_allocator->
303 free_packet (quicly_context->packet_allocator, packets[i]);
306 while (num_packets > 0 && num_packets == max_packets);
309 if (svm_fifo_set_event (udp_session->tx_fifo))
311 session_send_io_evt_to_thread (udp_session->tx_fifo,
313 clib_warning ("Event enqueue errored %d", err);
315 QUIC_DBG (3, "%u[TX] %u[RX]", svm_fifo_max_dequeue (udp_session->tx_fifo),
316 svm_fifo_max_dequeue (udp_session->rx_fifo));
317 quic_update_timer (ctx);
321 if (err && err != QUICLY_ERROR_PACKET_IGNORED
322 && err != QUICLY_ERROR_FREE_CONNECTION)
323 clib_warning ("Quic error '%s'.", quic_format_err (err));
324 quic_connection_closed (ctx->c_c_index, ctx->c_thread_index);
328 /*****************************************************************************
329 * START QUICLY CALLBACKS
330 * Called from QUIC lib
331 *****************************************************************************/
334 quic_on_stream_destroy (quicly_stream_t * stream, int err)
336 quic_stream_data_t *stream_data = (quic_stream_data_t *) stream->data;
338 quic_ctx_get (stream_data->ctx_id, stream_data->thread_index);
339 session_t *stream_session =
340 session_get (sctx->c_s_index, sctx->c_thread_index);
341 QUIC_DBG (2, "DESTROYED_STREAM: session 0x%lx (code 0x%x)",
342 session_handle (stream_session), err);
344 stream_session->session_state = SESSION_STATE_CLOSED;
345 session_transport_delete_notify (&sctx->connection);
347 quic_ctx_free (sctx);
352 quic_on_stop_sending (quicly_stream_t * stream, int err)
355 quic_stream_data_t *stream_data = (quic_stream_data_t *) stream->data;
357 quic_ctx_get (stream_data->ctx_id, stream_data->thread_index);
358 session_t *stream_session =
359 session_get (sctx->c_s_index, sctx->c_thread_index);
360 clib_warning ("(NOT IMPLEMENTD) STOP_SENDING: session 0x%lx (code 0x%x)",
361 session_handle (stream_session), err);
363 /* TODO : handle STOP_SENDING */
368 quic_on_receive_reset (quicly_stream_t * stream, int err)
370 quic_stream_data_t *stream_data = (quic_stream_data_t *) stream->data;
372 quic_ctx_get (stream_data->ctx_id, stream_data->thread_index);
374 session_t *stream_session =
375 session_get (sctx->c_s_index, sctx->c_thread_index);
376 clib_warning ("RESET_STREAM: session 0x%lx (code 0x%x)",
377 session_handle (stream_session), err);
380 session_transport_closing_notify (&sctx->connection);
385 get_stream_session_from_stream (quicly_stream_t * stream)
388 quic_stream_data_t *stream_data;
390 stream_data = (quic_stream_data_t *) stream->data;
391 ctx = quic_ctx_get (stream_data->ctx_id, stream_data->thread_index);
392 return session_get (ctx->c_s_index, stream_data->thread_index);
396 quic_ack_rx_data (session_t * stream_session)
401 quicly_stream_t *stream;
402 quic_stream_data_t *stream_data;
405 quic_ctx_get (stream_session->connection_index,
406 stream_session->thread_index);
407 ASSERT (sctx->c_quic_ctx_id.is_stream);
408 stream = sctx->c_quic_ctx_id.stream;
409 stream_data = (quic_stream_data_t *) stream->data;
411 f = stream_session->rx_fifo;
412 max_deq = svm_fifo_max_dequeue (f);
414 ASSERT (stream_data->app_rx_data_len >= max_deq);
415 quicly_stream_sync_recvbuf (stream, stream_data->app_rx_data_len - max_deq);
416 QUIC_DBG (3, "Acking %u bytes", stream_data->app_rx_data_len - max_deq);
417 stream_data->app_rx_data_len = max_deq;
421 quic_on_receive (quicly_stream_t * stream, size_t off, const void *src,
424 QUIC_DBG (3, "received data: %lu bytes, offset %lu", len, off);
427 session_t *stream_session;
428 app_worker_t *app_wrk;
430 quic_stream_data_t *stream_data;
433 stream_data = (quic_stream_data_t *) stream->data;
434 sctx = quic_ctx_get (stream_data->ctx_id, stream_data->thread_index);
435 stream_session = session_get (sctx->c_s_index, stream_data->thread_index);
436 f = stream_session->rx_fifo;
438 max_enq = svm_fifo_max_enqueue_prod (f);
439 QUIC_DBG (3, "Enqueuing %u at off %u in %u space", len, off, max_enq);
440 if (off - stream_data->app_rx_data_len + len > max_enq)
442 QUIC_DBG (1, "Error RX fifo is full");
445 if (off == stream_data->app_rx_data_len)
447 /* Streams live on the same thread so (f, stream_data) should stay consistent */
448 rlen = svm_fifo_enqueue (f, len, (u8 *) src);
449 stream_data->app_rx_data_len += rlen;
450 ASSERT (rlen >= len);
451 app_wrk = app_worker_get_if_valid (stream_session->app_wrk_index);
452 if (PREDICT_TRUE (app_wrk != 0))
453 app_worker_lock_and_send_event (app_wrk, stream_session,
455 quic_ack_rx_data (stream_session);
460 svm_fifo_enqueue_with_offset (f, off - stream_data->app_rx_data_len,
468 quic_fifo_egress_shift (quicly_stream_t * stream, size_t delta)
470 session_t *stream_session;
474 stream_session = get_stream_session_from_stream (stream);
475 f = stream_session->tx_fifo;
477 rv = svm_fifo_dequeue_drop (f, delta);
478 ASSERT (rv == delta);
479 quicly_stream_sync_sendbuf (stream, 0);
483 quic_fifo_egress_emit (quicly_stream_t * stream, size_t off, void *dst,
484 size_t * len, int *wrote_all)
486 session_t *stream_session;
488 u32 deq_max, first_deq, max_rd_chunk, rem_offset;
490 stream_session = get_stream_session_from_stream (stream);
491 f = stream_session->tx_fifo;
493 QUIC_DBG (3, "Emitting %u, offset %u", *len, off);
495 deq_max = svm_fifo_max_dequeue_cons (f);
496 ASSERT (off <= deq_max);
497 if (off + *len < deq_max)
504 *len = deq_max - off;
505 QUIC_DBG (3, "Wrote ALL, %u", *len);
508 /* TODO, use something like : return svm_fifo_peek (f, off, *len, dst); */
509 max_rd_chunk = svm_fifo_max_read_chunk (f);
512 if (off < max_rd_chunk)
514 first_deq = clib_min (*len, max_rd_chunk - off);
515 clib_memcpy_fast (dst, svm_fifo_head (f) + off, first_deq);
518 if (max_rd_chunk < off + *len)
520 rem_offset = max_rd_chunk < off ? off - max_rd_chunk : 0;
521 clib_memcpy_fast (dst + first_deq, f->head_chunk->data + rem_offset,
528 static const quicly_stream_callbacks_t quic_stream_callbacks = {
529 .on_destroy = quic_on_stream_destroy,
530 .on_send_shift = quic_fifo_egress_shift,
531 .on_send_emit = quic_fifo_egress_emit,
532 .on_send_stop = quic_on_stop_sending,
533 .on_receive = quic_on_receive,
534 .on_receive_reset = quic_on_receive_reset
538 quic_accept_stream (void *s)
540 quicly_stream_t *stream = (quicly_stream_t *) s;
541 session_t *stream_session, *quic_session;
542 quic_stream_data_t *stream_data;
543 app_worker_t *app_wrk;
544 quic_ctx_t *qctx, *sctx;
548 sctx_id = quic_ctx_alloc (vlib_get_thread_index ());
550 qctx = quic_get_conn_ctx (stream->conn);
552 stream_session = session_alloc (qctx->c_thread_index);
553 QUIC_DBG (2, "Allocated stream_session, id %u, thread %u ctx %u",
554 stream_session->session_index, stream_session->thread_index,
556 sctx = quic_ctx_get (sctx_id, qctx->c_thread_index);
557 sctx->c_quic_ctx_id.parent_app_wrk_id =
558 qctx->c_quic_ctx_id.parent_app_wrk_id;
559 sctx->c_quic_ctx_id.parent_app_id = qctx->c_quic_ctx_id.parent_app_id;
560 sctx->c_quic_ctx_id.quic_connection_ctx_id = qctx->c_c_index;
561 sctx->c_c_index = sctx_id;
562 sctx->c_quic_ctx_id.is_stream = 1;
563 sctx->c_s_index = stream_session->session_index;
564 sctx->c_quic_ctx_id.stream = stream;
566 stream_data = (quic_stream_data_t *) stream->data;
567 stream_data->ctx_id = sctx_id;
568 stream_data->thread_index = sctx->c_thread_index;
569 stream_data->app_rx_data_len = 0;
571 sctx->c_s_index = stream_session->session_index;
572 stream_session->session_state = SESSION_STATE_CREATED;
573 stream_session->app_wrk_index = sctx->c_quic_ctx_id.parent_app_wrk_id;
574 stream_session->connection_index = sctx->c_c_index;
575 stream_session->session_type =
576 session_type_from_proto_and_ip (TRANSPORT_PROTO_QUIC,
577 qctx->c_quic_ctx_id.udp_is_ip4);
578 quic_session = session_get (qctx->c_s_index, qctx->c_thread_index);
579 stream_session->listener_handle = listen_session_get_handle (quic_session);
581 app_wrk = app_worker_get (stream_session->app_wrk_index);
582 if ((rv = app_worker_init_connected (app_wrk, stream_session)))
584 QUIC_DBG (1, "failed to allocate fifos");
585 session_free (stream_session);
586 quicly_reset_stream (stream, QUIC_APP_ALLOCATION_ERROR);
589 svm_fifo_add_want_tx_ntf (stream_session->rx_fifo,
590 SVM_FIFO_WANT_TX_NOTIF_IF_FULL |
591 SVM_FIFO_WANT_TX_NOTIF_IF_EMPTY);
593 rv = app_worker_accept_notify (app_wrk, stream_session);
596 QUIC_DBG (1, "failed to notify accept worker app");
597 session_free_w_fifos (stream_session);
598 quicly_reset_stream (stream, QUIC_APP_ACCEPT_NOTIFY_ERROR);
601 session_lookup_add_connection (&sctx->connection,
602 session_handle (stream_session));
606 quic_on_stream_open (quicly_stream_open_t * self, quicly_stream_t * stream)
608 QUIC_DBG (2, "on_stream_open called");
609 stream->data = malloc (sizeof (quic_stream_data_t));
610 stream->callbacks = &quic_stream_callbacks;
611 /* Notify accept on parent qsession, but only if this is not a locally
612 * initiated stream */
613 if (!quicly_stream_is_self_initiated (stream))
615 quic_accept_stream (stream);
620 static quicly_stream_open_t on_stream_open = { &quic_on_stream_open };
623 quic_on_conn_close (quicly_closed_by_peer_t * self, quicly_conn_t * conn,
624 int code, uint64_t frame_type,
625 const char *reason, size_t reason_len)
627 QUIC_DBG (2, "connection closed, reason: %.*s", reason, reason_len);
628 quic_ctx_t *ctx = quic_get_conn_ctx (conn);
629 session_transport_closing_notify (&ctx->connection);
632 static quicly_closed_by_peer_t on_closed_by_peer = { &quic_on_conn_close };
635 /*****************************************************************************
636 * END QUICLY CALLBACKS
637 *****************************************************************************/
639 /* single-entry session cache */
640 struct st_util_session_cache_t
642 ptls_encrypt_ticket_t super;
648 encrypt_ticket_cb (ptls_encrypt_ticket_t * _self, ptls_t * tls,
649 int is_encrypt, ptls_buffer_t * dst, ptls_iovec_t src)
651 struct st_util_session_cache_t *self = (void *) _self;
657 /* replace the cached entry along with a newly generated session id */
658 free (self->data.base);
659 if ((self->data.base = malloc (src.len)) == NULL)
660 return PTLS_ERROR_NO_MEMORY;
662 ptls_get_context (tls)->random_bytes (self->id, sizeof (self->id));
663 memcpy (self->data.base, src.base, src.len);
664 self->data.len = src.len;
666 /* store the session id in buffer */
667 if ((ret = ptls_buffer_reserve (dst, sizeof (self->id))) != 0)
669 memcpy (dst->base + dst->off, self->id, sizeof (self->id));
670 dst->off += sizeof (self->id);
676 /* check if session id is the one stored in cache */
677 if (src.len != sizeof (self->id))
678 return PTLS_ERROR_SESSION_NOT_FOUND;
679 if (memcmp (self->id, src.base, sizeof (self->id)) != 0)
680 return PTLS_ERROR_SESSION_NOT_FOUND;
682 /* return the cached value */
683 if ((ret = ptls_buffer_reserve (dst, self->data.len)) != 0)
685 memcpy (dst->base + dst->off, self->data.base, self->data.len);
686 dst->off += self->data.len;
693 static struct st_util_session_cache_t sc = {
695 .cb = encrypt_ticket_cb,
699 static ptls_context_t quic_tlsctx = {
700 .random_bytes = ptls_openssl_random_bytes,
701 .get_time = &ptls_get_time,
702 .key_exchanges = ptls_openssl_key_exchanges,
703 .cipher_suites = ptls_openssl_cipher_suites,
709 .on_client_hello = NULL,
710 .emit_certificate = NULL,
711 .sign_certificate = NULL,
712 .verify_certificate = NULL,
713 .ticket_lifetime = 86400,
714 .max_early_data_size = 8192,
715 .hkdf_label_prefix__obsolete = NULL,
716 .require_dhe_on_psk = 1,
717 .encrypt_ticket = &sc.super,
722 ptls_compare_separator_line (const char *line, const char *begin_or_end,
725 int ret = strncmp (line, "-----", 5);
726 size_t text_index = 5;
730 size_t begin_or_end_length = strlen (begin_or_end);
731 ret = strncmp (line + text_index, begin_or_end, begin_or_end_length);
732 text_index += begin_or_end_length;
737 ret = line[text_index] - ' ';
743 size_t label_length = strlen (label);
744 ret = strncmp (line + text_index, label, label_length);
745 text_index += label_length;
750 ret = strncmp (line + text_index, "-----", 5);
757 ptls_get_bio_pem_object (BIO * bio, const char *label, ptls_buffer_t * buf)
759 int ret = PTLS_ERROR_PEM_LABEL_NOT_FOUND;
761 ptls_base64_decode_state_t state;
763 /* Get the label on a line by itself */
764 while (BIO_gets (bio, line, 256))
766 if (ptls_compare_separator_line (line, "BEGIN", label) == 0)
769 ptls_base64_decode_init (&state);
773 /* Get the data in the buffer */
774 while (ret == 0 && BIO_gets (bio, line, 256))
776 if (ptls_compare_separator_line (line, "END", label) == 0)
778 if (state.status == PTLS_BASE64_DECODE_DONE
779 || (state.status == PTLS_BASE64_DECODE_IN_PROGRESS
786 ret = PTLS_ERROR_INCORRECT_BASE64;
792 ret = ptls_base64_decode (line, &state, buf);
800 ptls_load_bio_pem_objects (BIO * bio, const char *label, ptls_iovec_t * list,
801 size_t list_max, size_t * nb_objects)
810 while (count < list_max)
814 ptls_buffer_init (&buf, "", 0);
816 ret = ptls_get_bio_pem_object (bio, label, &buf);
820 if (buf.off > 0 && buf.is_allocated)
822 list[count].base = buf.base;
823 list[count].len = buf.off;
828 ptls_buffer_dispose (&buf);
833 ptls_buffer_dispose (&buf);
839 if (ret == PTLS_ERROR_PEM_LABEL_NOT_FOUND && count > 0)
849 #define PTLS_MAX_CERTS_IN_CONTEXT 16
852 ptls_load_bio_certificates (ptls_context_t * ctx, BIO * bio)
856 ctx->certificates.list =
857 (ptls_iovec_t *) malloc (PTLS_MAX_CERTS_IN_CONTEXT *
858 sizeof (ptls_iovec_t));
860 if (ctx->certificates.list == NULL)
862 ret = PTLS_ERROR_NO_MEMORY;
867 ptls_load_bio_pem_objects (bio, "CERTIFICATE", ctx->certificates.list,
868 PTLS_MAX_CERTS_IN_CONTEXT,
869 &ctx->certificates.count);
876 load_bio_certificate_chain (ptls_context_t * ctx, const char *cert_data)
879 cert_bio = BIO_new_mem_buf (cert_data, -1);
880 if (ptls_load_bio_certificates (ctx, cert_bio) != 0)
883 fprintf (stderr, "failed to load certificate:%s\n", strerror (errno));
890 load_bio_private_key (ptls_context_t * ctx, const char *pk_data)
892 static ptls_openssl_sign_certificate_t sc;
896 key_bio = BIO_new_mem_buf (pk_data, -1);
897 pkey = PEM_read_bio_PrivateKey (key_bio, NULL, NULL, NULL);
902 fprintf (stderr, "failed to read private key from app configuration\n");
906 ptls_openssl_init_sign_certificate (&sc, pkey);
907 EVP_PKEY_free (pkey);
909 ctx->sign_certificate = &sc.super;
913 quic_make_connection_key (clib_bihash_kv_16_8_t * kv,
914 const quicly_cid_plaintext_t * id)
916 kv->key[0] = ((u64) id->master_id) << 32 | (u64) id->thread_id;
917 kv->key[1] = id->node_id;
921 quic_connection_closed (u32 ctx_index, u32 thread_index)
923 /* TODO : free fifos */
924 QUIC_DBG (2, "QUIC connection closed");
925 tw_timer_wheel_1t_3w_1024sl_ov_t *tw;
926 clib_bihash_kv_16_8_t kv;
930 ctx = quic_ctx_get (ctx_index, thread_index);
932 ASSERT (!ctx->c_quic_ctx_id.is_stream);
933 /* TODO if connection is not established, just delete the session? */
936 if (ctx->timer_handle != QUIC_TIMER_HANDLE_INVALID)
938 tw = &quic_main.wrk_ctx[thread_index].timer_wheel;
939 tw_timer_stop_1t_3w_1024sl_ov (tw, ctx->timer_handle);
942 /* Delete the connection from the connection map */
943 conn = ctx->c_quic_ctx_id.conn;
944 quic_make_connection_key (&kv, quicly_get_master_id (conn));
945 QUIC_DBG (2, "Deleting conn with id %lu %lu", kv.key[0], kv.key[1]);
946 clib_bihash_add_del_16_8 (&quic_main.connection_hash, &kv, 0 /* is_add */ );
948 quic_disconnect_transport (ctx);
949 session_transport_delete_notify (&ctx->connection);
950 /* Do not try to send anything anymore */
951 quicly_free (ctx->c_quic_ctx_id.conn);
952 ctx->c_quic_ctx_id.conn = NULL;
957 allocate_quicly_ctx (application_t * app, u8 is_client)
964 quicly_context_t *quicly_ctx;
965 ptls_iovec_t key_vec;
966 QUIC_DBG (2, "Called allocate_quicly_ctx");
970 QUIC_DBG (1, "Trying to reallocate quicly_ctx");
974 ctx_data = malloc (sizeof (*ctx_data));
975 quicly_ctx = &ctx_data->_;
976 app->quicly_ctx = (u64 *) quicly_ctx;
977 memcpy (quicly_ctx, &quicly_spec_context, sizeof (quicly_context_t));
979 quicly_ctx->max_packet_size = QUIC_MAX_PACKET_SIZE;
980 quicly_ctx->tls = &quic_tlsctx;
981 quicly_ctx->stream_open = &on_stream_open;
982 quicly_ctx->closed_by_peer = &on_closed_by_peer;
983 quicly_ctx->now = &quicly_vpp_now_cb;
985 quicly_amend_ptls_context (quicly_ctx->tls);
987 quicly_ctx->event_log.mask = 0; /* logs */
988 quicly_ctx->event_log.cb = quicly_new_default_event_logger (stderr);
990 quicly_ctx->transport_params.max_data = QUIC_INT_MAX;
991 quicly_ctx->transport_params.max_streams_uni = QUIC_INT_MAX;
992 quicly_ctx->transport_params.max_streams_bidi = QUIC_INT_MAX;
993 quicly_ctx->transport_params.max_stream_data.bidi_local = (QUIC_FIFO_SIZE - 1); /* max_enq is SIZE - 1 */
994 quicly_ctx->transport_params.max_stream_data.bidi_remote = (QUIC_FIFO_SIZE - 1); /* max_enq is SIZE - 1 */
995 quicly_ctx->transport_params.max_stream_data.uni = QUIC_INT_MAX;
997 quicly_ctx->tls->random_bytes (ctx_data->cid_key, 16);
998 ctx_data->cid_key[16] = 0;
999 key_vec = ptls_iovec_init (ctx_data->cid_key, strlen (ctx_data->cid_key));
1000 quicly_ctx->cid_encryptor =
1001 quicly_new_default_cid_encryptor (&ptls_openssl_bfecb,
1002 &ptls_openssl_sha256, key_vec);
1003 if (!is_client && app->tls_key != NULL && app->tls_cert != NULL)
1005 load_bio_private_key (quicly_ctx->tls, (char *) app->tls_key);
1006 load_bio_certificate_chain (quicly_ctx->tls, (char *) app->tls_cert);
1011 /*****************************************************************************
1012 * BEGIN TIMERS HANDLING
1013 *****************************************************************************/
1016 quic_get_thread_time (u8 thread_index)
1018 return quic_main.wrk_ctx[thread_index].time_now;
1022 quic_get_time (quicly_now_t * self)
1024 u8 thread_index = vlib_get_thread_index ();
1025 return quic_get_thread_time (thread_index);
1029 quic_set_time_now (u32 thread_index)
1031 vlib_main_t *vlib_main = vlib_get_main ();
1032 f64 time = vlib_time_now (vlib_main);
1033 quic_main.wrk_ctx[thread_index].time_now = (int64_t) (time * 1000.f);
1034 return quic_main.wrk_ctx[thread_index].time_now;
1037 /* Transport proto callback */
1039 quic_update_time (f64 now, u8 thread_index)
1041 tw_timer_wheel_1t_3w_1024sl_ov_t *tw;
1043 tw = &quic_main.wrk_ctx[thread_index].timer_wheel;
1044 quic_set_time_now (thread_index);
1045 tw_timer_expire_timers_1t_3w_1024sl_ov (tw, now);
1049 quic_timer_expired (u32 conn_index)
1052 QUIC_DBG (4, "Timer expired for conn %u at %ld", conn_index,
1053 quic_get_time (NULL));
1054 ctx = quic_ctx_get (conn_index, vlib_get_thread_index ());
1055 ctx->timer_handle = QUIC_TIMER_HANDLE_INVALID;
1056 quic_send_packets (ctx);
1060 quic_update_timer (quic_ctx_t * ctx)
1062 tw_timer_wheel_1t_3w_1024sl_ov_t *tw;
1063 int64_t next_timeout, next_interval;
1064 session_t *quic_session;
1066 /* This timeout is in ms which is the unit of our timer */
1067 next_timeout = quicly_get_first_timeout (ctx->c_quic_ctx_id.conn);
1068 next_interval = next_timeout - quic_get_time (NULL);
1070 if (next_timeout == 0 || next_interval <= 0)
1072 if (ctx->c_s_index == QUIC_SESSION_INVALID)
1078 quic_session = session_get (ctx->c_s_index, ctx->c_thread_index);
1079 if (svm_fifo_set_event (quic_session->tx_fifo))
1080 session_send_io_evt_to_thread_custom (quic_session,
1081 quic_session->thread_index,
1082 SESSION_IO_EVT_BUILTIN_TX);
1087 tw = &quic_main.wrk_ctx[vlib_get_thread_index ()].timer_wheel;
1089 QUIC_DBG (4, "Timer set to %ld (int %ld) for ctx %u", next_timeout,
1090 next_interval, ctx->c_c_index);
1092 if (ctx->timer_handle == QUIC_TIMER_HANDLE_INVALID)
1094 if (next_timeout == INT64_MAX)
1096 QUIC_DBG (4, "timer for ctx %u already stopped", ctx->c_c_index);
1100 tw_timer_start_1t_3w_1024sl_ov (tw, ctx->c_c_index, 0, next_interval);
1104 if (next_timeout == INT64_MAX)
1106 tw_timer_stop_1t_3w_1024sl_ov (tw, ctx->timer_handle);
1107 ctx->timer_handle = QUIC_TIMER_HANDLE_INVALID;
1108 QUIC_DBG (4, "Stopping timer for ctx %u", ctx->c_c_index);
1111 tw_timer_update_1t_3w_1024sl_ov (tw, ctx->timer_handle,
1118 quic_expired_timers_dispatch (u32 * expired_timers)
1122 for (i = 0; i < vec_len (expired_timers); i++)
1124 quic_timer_expired (expired_timers[i]);
1129 /*****************************************************************************
1130 * END TIMERS HANDLING
1132 * BEGIN TRANSPORT PROTO FUNCTIONS
1133 *****************************************************************************/
1136 quic_connect (transport_endpoint_cfg_t * tep)
1138 QUIC_DBG (2, "Called quic_connect");
1139 session_endpoint_cfg_t *sep;
1140 int connect_stream = 0;
1142 sep = (session_endpoint_cfg_t *) tep;
1146 /* TODO: better logic to detect if this is a stream or a connection request */
1152 return quic_connect_new_stream (sep);
1156 return quic_connect_new_connection (sep);
1161 quic_connect_new_stream (session_endpoint_cfg_t * sep)
1163 uint64_t quic_session_handle;
1164 session_t *quic_session, *stream_session;
1165 quic_stream_data_t *stream_data;
1166 quicly_stream_t *stream;
1167 quicly_conn_t *conn;
1168 app_worker_t *app_wrk;
1169 quic_ctx_t *qctx, *sctx;
1173 /* Find base session to which the user want to attach a stream */
1174 quic_session_handle = sep->transport_opts;
1175 QUIC_DBG (2, "Opening new stream (qsession %u)", sep->transport_opts);
1176 quic_session = session_get_from_handle (quic_session_handle);
1178 if (quic_session->session_type !=
1179 session_type_from_proto_and_ip (TRANSPORT_PROTO_QUIC, sep->is_ip4))
1181 QUIC_DBG (1, "received incompatible session");
1185 app_wrk = app_worker_get_if_valid (quic_session->app_wrk_index);
1188 QUIC_DBG (1, "Invalid app worker :(");
1192 sctx_index = quic_ctx_alloc (quic_session->thread_index); /* Allocate before we get pointers */
1193 sctx = quic_ctx_get (sctx_index, quic_session->thread_index);
1195 quic_ctx_get (quic_session->connection_index, quic_session->thread_index);
1196 if (qctx->c_quic_ctx_id.is_stream)
1198 QUIC_DBG (1, "session is a stream");
1199 quic_ctx_free (sctx);
1203 sctx->c_quic_ctx_id.parent_app_wrk_id =
1204 qctx->c_quic_ctx_id.parent_app_wrk_id;
1205 sctx->c_quic_ctx_id.parent_app_id = qctx->c_quic_ctx_id.parent_app_id;
1206 sctx->c_quic_ctx_id.quic_connection_ctx_id = qctx->c_c_index;
1207 sctx->c_c_index = sctx_index;
1208 sctx->c_quic_ctx_id.is_stream = 1;
1210 conn = qctx->c_quic_ctx_id.conn;
1212 if (!conn || !quicly_connection_is_ready (conn))
1215 if ((rv = quicly_open_stream (conn, &stream, 0 /* uni */ )))
1217 QUIC_DBG (2, "Stream open failed with %d", rv);
1220 sctx->c_quic_ctx_id.stream = stream;
1222 QUIC_DBG (2, "Opened stream %d, creating session", stream->stream_id);
1224 stream_session = session_alloc (qctx->c_thread_index);
1225 QUIC_DBG (2, "Allocated stream_session, id %u, thread %u ctx %u",
1226 stream_session->session_index, stream_session->thread_index,
1228 stream_session->app_wrk_index = app_wrk->wrk_index;
1229 stream_session->connection_index = sctx_index;
1230 stream_session->listener_handle = quic_session_handle;
1231 stream_session->session_type =
1232 session_type_from_proto_and_ip (TRANSPORT_PROTO_QUIC,
1233 qctx->c_quic_ctx_id.udp_is_ip4);
1235 sctx->c_s_index = stream_session->session_index;
1237 if (app_worker_init_connected (app_wrk, stream_session))
1239 QUIC_DBG (1, "failed to app_worker_init_connected");
1240 quicly_reset_stream (stream, QUIC_APP_ALLOCATION_ERROR);
1241 session_free_w_fifos (stream_session);
1242 quic_ctx_free (sctx);
1243 return app_worker_connect_notify (app_wrk, NULL, sep->opaque);
1246 svm_fifo_add_want_tx_ntf (stream_session->rx_fifo,
1247 SVM_FIFO_WANT_TX_NOTIF_IF_FULL |
1248 SVM_FIFO_WANT_TX_NOTIF_IF_EMPTY);
1250 stream_session->session_state = SESSION_STATE_READY;
1251 if (app_worker_connect_notify (app_wrk, stream_session, sep->opaque))
1253 QUIC_DBG (1, "failed to notify app");
1254 quicly_reset_stream (stream, QUIC_APP_CONNECT_NOTIFY_ERROR);
1255 session_free_w_fifos (stream_session);
1256 quic_ctx_free (sctx);
1259 session_lookup_add_connection (&sctx->connection,
1260 session_handle (stream_session));
1261 stream_data = (quic_stream_data_t *) stream->data;
1262 stream_data->ctx_id = sctx->c_c_index;
1263 stream_data->thread_index = sctx->c_thread_index;
1264 stream_data->app_rx_data_len = 0;
1269 quic_connect_new_connection (session_endpoint_cfg_t * sep)
1271 vnet_connect_args_t _cargs = { {}, }, *cargs = &_cargs;
1272 quic_main_t *qm = &quic_main;
1274 app_worker_t *app_wrk;
1279 ctx_index = quic_ctx_alloc (vlib_get_thread_index ());
1280 ctx = quic_ctx_get (ctx_index, vlib_get_thread_index ());
1281 ctx->c_quic_ctx_id.parent_app_wrk_id = sep->app_wrk_index;
1282 ctx->c_s_index = QUIC_SESSION_INVALID;
1283 ctx->c_c_index = ctx_index;
1284 ctx->c_quic_ctx_id.udp_is_ip4 = sep->is_ip4;
1285 ctx->timer_handle = QUIC_TIMER_HANDLE_INVALID;
1286 ctx->conn_state = QUIC_CONN_STATE_HANDSHAKE;
1287 ctx->client_opaque = sep->opaque;
1290 ctx->srv_hostname = format (0, "%v", sep->hostname);
1291 vec_terminate_c_string (ctx->srv_hostname);
1295 /* needed by quic for crypto + determining client / server */
1297 format (0, "%U", format_ip46_address, &sep->ip, sep->is_ip4);
1300 clib_memcpy (&cargs->sep, sep, sizeof (session_endpoint_cfg_t));
1301 cargs->sep.transport_proto = TRANSPORT_PROTO_UDPC;
1302 cargs->app_index = qm->app_index;
1303 cargs->api_context = ctx_index;
1305 app_wrk = app_worker_get (sep->app_wrk_index);
1306 app = application_get (app_wrk->app_index);
1307 ctx->c_quic_ctx_id.parent_app_id = app_wrk->app_index;
1308 cargs->sep_ext.ns_index = app->ns_index;
1310 allocate_quicly_ctx (app, 1 /* is client */ );
1312 if ((error = vnet_connect (cargs)))
1319 quic_proto_on_close (u32 ctx_index, u32 thread_index)
1321 quic_ctx_t *ctx = quic_ctx_get (ctx_index, thread_index);
1322 if (ctx->c_quic_ctx_id.is_stream)
1325 session_t *stream_session =
1326 session_get (ctx->c_s_index, ctx->c_thread_index);
1327 clib_warning ("Closing Ssession 0x%lx",
1328 session_handle (stream_session));
1330 quicly_stream_t *stream = ctx->c_quic_ctx_id.stream;
1331 quicly_reset_stream (stream, QUIC_APP_ERROR_NONE);
1336 session_t *quic_session =
1337 session_get (ctx->c_s_index, ctx->c_thread_index);
1338 clib_warning ("Closing Qsession 0x%lx", session_handle (quic_session));
1340 quicly_conn_t *conn = ctx->c_quic_ctx_id.conn;
1341 /* Start connection closing. Keep sending packets until quicly_send
1342 returns QUICLY_ERROR_FREE_CONNECTION */
1343 quicly_close (conn, 0, "");
1344 /* This also causes all streams to be closed (and the cb called) */
1346 quic_send_packets (ctx);
1350 quic_start_listen (u32 quic_listen_session_index, transport_endpoint_t * tep)
1352 vnet_listen_args_t _bargs, *args = &_bargs;
1353 quic_main_t *qm = &quic_main;
1354 session_handle_t udp_handle;
1355 session_endpoint_cfg_t *sep;
1356 session_t *udp_listen_session;
1357 app_worker_t *app_wrk;
1361 app_listener_t *app_listener;
1363 sep = (session_endpoint_cfg_t *) tep;
1364 app_wrk = app_worker_get (sep->app_wrk_index);
1365 /* We need to call this because we call app_worker_init_connected in
1366 * quic_accept_stream, which assumes the connect segment manager exists */
1367 app_worker_alloc_connects_segment_manager (app_wrk);
1368 app = application_get (app_wrk->app_index);
1369 QUIC_DBG (2, "Called quic_start_listen for app %d", app_wrk->app_index);
1371 allocate_quicly_ctx (app, 0 /* is_client */ );
1373 sep->transport_proto = TRANSPORT_PROTO_UDPC;
1374 memset (args, 0, sizeof (*args));
1375 args->app_index = qm->app_index;
1376 args->sep_ext = *sep;
1377 args->sep_ext.ns_index = app->ns_index;
1378 if (vnet_listen (args))
1381 lctx_index = quic_ctx_alloc (0); /* listener */
1382 udp_handle = args->handle;
1383 app_listener = app_listener_get_w_handle (udp_handle);
1384 udp_listen_session = app_listener_get_session (app_listener);
1385 udp_listen_session->opaque = lctx_index;
1387 lctx = quic_ctx_get (lctx_index, 0); /* listener */
1388 lctx->is_listener = 1;
1389 lctx->c_quic_ctx_id.parent_app_wrk_id = sep->app_wrk_index;
1390 lctx->c_quic_ctx_id.parent_app_id = app_wrk->app_index;
1391 lctx->c_quic_ctx_id.udp_session_handle = udp_handle;
1392 lctx->c_quic_ctx_id.udp_is_ip4 = sep->is_ip4;
1393 lctx->c_s_index = quic_listen_session_index;
1395 QUIC_DBG (2, "Started listening %d", lctx_index);
1400 quic_stop_listen (u32 lctx_index)
1402 QUIC_DBG (2, "Called quic_stop_listen");
1405 lctx = quic_ctx_get (lctx_index, 0);
1406 vnet_unlisten_args_t a = {
1407 .handle = lctx->c_quic_ctx_id.udp_session_handle,
1408 .app_index = quic_main.app_index,
1409 .wrk_map_index = 0 /* default wrk */
1411 if (vnet_unlisten (&a))
1412 clib_warning ("unlisten errored");
1414 /* TODO: crypto state cleanup */
1416 quic_ctx_free (lctx);
1420 static transport_connection_t *
1421 quic_connection_get (u32 ctx_index, u32 thread_index)
1423 QUIC_DBG (2, "Called quic_connection_get");
1425 ctx = quic_ctx_get (ctx_index, thread_index);
1426 return &ctx->connection;
1429 static transport_connection_t *
1430 quic_listener_get (u32 listener_index)
1432 QUIC_DBG (2, "Called quic_listener_get");
1434 ctx = quic_ctx_get (listener_index, 0);
1435 return &ctx->connection;
1439 format_quic_ctx (u8 * s, va_list * args)
1441 quic_ctx_t *ctx = va_arg (*args, quic_ctx_t *);
1442 u32 verbose = va_arg (*args, u32);
1446 s = format (s, "[#%d][%s] ", ctx->c_thread_index, "Q");
1448 if (ctx->is_listener)
1450 s = format (s, "%s Listener: ", ctx->c_quic_ctx_id.is_stream ?
1451 "Stream" : "QSession");
1453 s = format (s, "app %d wrk %d", ctx->c_quic_ctx_id.parent_app_id,
1454 ctx->c_quic_ctx_id.parent_app_wrk_id);
1459 s = format (s, "%U:%d->%U:%d", format_ip4_address, &ctx->c_lcl_ip4,
1460 clib_net_to_host_u16 (ctx->c_lcl_port),
1461 format_ip4_address, &ctx->c_rmt_ip4,
1462 clib_net_to_host_u16 (ctx->c_rmt_port));
1464 s = format (s, "%U:%d->%U:%d", format_ip6_address, &ctx->c_lcl_ip6,
1465 clib_net_to_host_u16 (ctx->c_lcl_port),
1466 format_ip6_address, &ctx->c_rmt_ip6,
1467 clib_net_to_host_u16 (ctx->c_rmt_port));
1473 format_quic_connection (u8 * s, va_list * args)
1475 u32 qc_index = va_arg (*args, u32);
1476 u32 thread_index = va_arg (*args, u32);
1477 u32 verbose = va_arg (*args, u32);
1478 quic_ctx_t *ctx = quic_ctx_get (qc_index, thread_index);
1480 s = format (s, "%-50U", format_quic_ctx, ctx, verbose);
1485 format_quic_half_open (u8 * s, va_list * args)
1487 u32 qc_index = va_arg (*args, u32);
1488 quic_ctx_t *ctx = quic_ctx_get (qc_index, vlib_get_thread_index ());
1489 s = format (s, "[QUIC] half-open app %u", ctx->c_quic_ctx_id.parent_app_id);
1495 format_quic_listener (u8 * s, va_list * args)
1497 u32 tci = va_arg (*args, u32);
1498 u32 verbose = va_arg (*args, u32);
1499 quic_ctx_t *ctx = quic_ctx_get (tci, vlib_get_thread_index ());
1502 ASSERT (ctx->is_listener);
1503 s = format (s, "%-50U", format_quic_ctx, ctx, verbose);
1508 /*****************************************************************************
1509 * END TRANSPORT PROTO FUNCTIONS
1511 * START SESSION CALLBACKS
1512 * Called from UDP layer
1513 *****************************************************************************/
1516 quic_build_sockaddr (struct sockaddr *sa, socklen_t * salen,
1517 ip46_address_t * addr, u16 port, u8 is_ip4)
1521 struct sockaddr_in *sa4 = (struct sockaddr_in *) sa;
1522 sa4->sin_family = AF_INET;
1523 sa4->sin_port = port;
1524 sa4->sin_addr.s_addr = addr->ip4.as_u32;
1525 *salen = sizeof (struct sockaddr_in);
1529 struct sockaddr_in6 *sa6 = (struct sockaddr_in6 *) sa;
1530 sa6->sin6_family = AF_INET6;
1531 sa6->sin6_port = port;
1532 clib_memcpy (&sa6->sin6_addr, &addr->ip6, 16);
1533 *salen = sizeof (struct sockaddr_in6);
1538 quic_on_client_connected (quic_ctx_t * ctx)
1540 session_t *quic_session;
1541 app_worker_t *app_wrk;
1542 u32 ctx_id = ctx->c_c_index;
1543 u32 thread_index = ctx->c_thread_index;
1545 app_wrk = app_worker_get_if_valid (ctx->c_quic_ctx_id.parent_app_wrk_id);
1548 quic_disconnect_transport (ctx);
1552 quic_session = session_alloc (thread_index);
1554 QUIC_DBG (2, "Allocated quic_session, id %u, thread %u",
1555 quic_session->session_index, quic_session->thread_index);
1556 ctx->c_s_index = quic_session->session_index;
1557 quic_session->app_wrk_index = ctx->c_quic_ctx_id.parent_app_wrk_id;
1558 quic_session->connection_index = ctx->c_c_index;
1559 quic_session->listener_handle = SESSION_INVALID_HANDLE;
1560 quic_session->session_type =
1561 session_type_from_proto_and_ip (TRANSPORT_PROTO_QUIC,
1562 ctx->c_quic_ctx_id.udp_is_ip4);
1564 if (app_worker_init_connected (app_wrk, quic_session))
1566 QUIC_DBG (1, "failed to app_worker_init_connected");
1567 quic_proto_on_close (ctx_id, thread_index);
1568 return app_worker_connect_notify (app_wrk, NULL, ctx->client_opaque);
1571 quic_session->session_state = SESSION_STATE_CONNECTING;
1572 if (app_worker_connect_notify (app_wrk, quic_session, ctx->client_opaque))
1574 QUIC_DBG (1, "failed to notify app");
1575 quic_proto_on_close (ctx_id, thread_index);
1579 /* If the app opens a stream in its callback it may invalidate ctx */
1580 ctx = quic_ctx_get (ctx_id, thread_index);
1581 quic_session->session_state = SESSION_STATE_LISTENING;
1582 session_lookup_add_connection (&ctx->connection,
1583 session_handle (quic_session));
1589 quic_session_connected_callback (u32 quic_app_index, u32 ctx_index,
1590 session_t * udp_session, u8 is_fail)
1592 QUIC_DBG (2, "QSession is now connected (id %u)",
1593 udp_session->session_index);
1594 /* This should always be called before quic_connect returns since UDP always
1595 * connects instantly. */
1596 clib_bihash_kv_16_8_t kv;
1597 struct sockaddr_in6 sa6;
1598 struct sockaddr *sa = (struct sockaddr *) &sa6;
1600 transport_connection_t *tc;
1601 app_worker_t *app_wrk;
1602 quicly_conn_t *conn;
1605 u32 thread_index = vlib_get_thread_index ();
1608 ctx = quic_ctx_get (ctx_index, thread_index);
1615 app_worker_get_if_valid (ctx->c_quic_ctx_id.parent_app_wrk_id);
1618 api_context = ctx->c_s_index;
1619 app_worker_connect_notify (app_wrk, 0, api_context);
1624 app_wrk = app_worker_get_if_valid (ctx->c_quic_ctx_id.parent_app_wrk_id);
1627 QUIC_DBG (1, "Appwrk not found");
1630 app = application_get (app_wrk->app_index);
1632 ctx->c_thread_index = thread_index;
1633 ctx->c_c_index = ctx_index;
1635 QUIC_DBG (2, "Quic connect returned %u. New ctx [%u]%x",
1636 is_fail, thread_index, (ctx) ? ctx_index : ~0);
1638 ctx->c_quic_ctx_id.udp_session_handle = session_handle (udp_session);
1639 udp_session->opaque = ctx->c_quic_ctx_id.parent_app_id;
1640 udp_session->session_state = SESSION_STATE_READY;
1642 /* Init QUIC lib connection
1643 * Generate required sockaddr & salen */
1644 tc = session_get_transport (udp_session);
1645 quic_build_sockaddr (sa, &salen, &tc->rmt_ip, tc->rmt_port, tc->is_ip4);
1648 quicly_connect (&ctx->c_quic_ctx_id.conn,
1649 (quicly_context_t *) app->quicly_ctx,
1650 (char *) ctx->srv_hostname, sa, salen,
1651 &quic_main.next_cid, &quic_main.hs_properties, NULL);
1652 ++quic_main.next_cid.master_id;
1653 /* Save context handle in quicly connection */
1654 quic_store_conn_ctx (ctx->c_quic_ctx_id.conn, ctx);
1657 /* Register connection in connections map */
1658 conn = ctx->c_quic_ctx_id.conn;
1659 quic_make_connection_key (&kv, quicly_get_master_id (conn));
1660 kv.value = ((u64) thread_index) << 32 | (u64) ctx_index;
1661 QUIC_DBG (2, "Registering conn with id %lu %lu", kv.key[0], kv.key[1]);
1662 clib_bihash_add_del_16_8 (&quic_main.connection_hash, &kv, 1 /* is_add */ );
1664 quic_send_packets (ctx);
1666 /* UDP stack quirk? preemptively transfer connection if that happens */
1667 if (udp_session->thread_index != thread_index)
1668 quic_transfer_connection (ctx_index, udp_session->thread_index);
1674 quic_receive_connection (void *arg)
1676 u32 new_ctx_id, thread_index = vlib_get_thread_index ();
1677 quic_ctx_t *temp_ctx, *new_ctx;
1678 clib_bihash_kv_16_8_t kv;
1679 quicly_conn_t *conn;
1682 new_ctx_id = quic_ctx_alloc (thread_index);
1683 new_ctx = quic_ctx_get (new_ctx_id, thread_index);
1685 QUIC_DBG (2, "Received conn %u (now %u)", temp_ctx->c_thread_index,
1689 memcpy (new_ctx, temp_ctx, sizeof (quic_ctx_t));
1692 new_ctx->c_thread_index = thread_index;
1693 new_ctx->c_c_index = new_ctx_id;
1695 conn = new_ctx->c_quic_ctx_id.conn;
1696 quic_store_conn_ctx (conn, new_ctx);
1697 quic_make_connection_key (&kv, quicly_get_master_id (conn));
1698 kv.value = ((u64) thread_index) << 32 | (u64) new_ctx_id;
1699 QUIC_DBG (2, "Registering conn with id %lu %lu", kv.key[0], kv.key[1]);
1700 clib_bihash_add_del_16_8 (&quic_main.connection_hash, &kv, 1 /* is_add */ );
1701 new_ctx->timer_handle = QUIC_TIMER_HANDLE_INVALID;
1702 quic_update_timer (new_ctx);
1704 /* Trigger read on this connection ? */
1708 quic_transfer_connection (u32 ctx_index, u32 dest_thread)
1710 tw_timer_wheel_1t_3w_1024sl_ov_t *tw;
1711 quic_ctx_t *ctx, *temp_ctx;
1712 clib_bihash_kv_16_8_t kv;
1713 quicly_conn_t *conn;
1714 u32 thread_index = vlib_get_thread_index ();
1716 QUIC_DBG (2, "Transferring conn %u to thread %u", ctx_index, dest_thread);
1718 temp_ctx = malloc (sizeof (quic_ctx_t));
1720 ctx = quic_ctx_get (ctx_index, thread_index);
1722 memcpy (temp_ctx, ctx, sizeof (quic_ctx_t));
1724 /* Remove from lookup hash, timer wheel and thread-local pool */
1725 conn = ctx->c_quic_ctx_id.conn;
1726 quic_make_connection_key (&kv, quicly_get_master_id (conn));
1727 clib_bihash_add_del_16_8 (&quic_main.connection_hash, &kv, 0 /* is_add */ );
1728 if (ctx->timer_handle != QUIC_TIMER_HANDLE_INVALID)
1730 tw = &quic_main.wrk_ctx[thread_index].timer_wheel;
1731 tw_timer_stop_1t_3w_1024sl_ov (tw, ctx->timer_handle);
1733 quic_ctx_free (ctx);
1735 /* Send connection to destination thread */
1736 session_send_rpc_evt_to_thread (dest_thread, quic_receive_connection,
1741 quic_transfer_connection_rpc (void *arg)
1743 u64 arg_int = (u64) arg;
1744 u32 ctx_index, dest_thread;
1746 ctx_index = (u32) (arg_int >> 32);
1747 dest_thread = (u32) (arg_int & UINT32_MAX);
1748 quic_transfer_connection (ctx_index, dest_thread);
1752 * This assumes that the connection is not yet associated to a session
1753 * So currently it only works on the client side when receiving the first packet
1757 quic_move_connection_to_thread (u32 ctx_index, u32 owner_thread,
1760 QUIC_DBG (2, "Requesting transfer of conn %u from thread %u", ctx_index,
1762 u64 arg = ((u64) ctx_index) << 32 | to_thread;
1763 session_send_rpc_evt_to_thread (owner_thread, quic_transfer_connection_rpc,
1768 quic_session_disconnect_callback (session_t * s)
1770 clib_warning ("UDP session disconnected???");
1774 quic_session_reset_callback (session_t * s)
1776 clib_warning ("UDP session reset???");
1780 quic_session_accepted_callback (session_t * udp_session)
1782 /* New UDP connection, try to accept it */
1783 QUIC_DBG (2, "UDP session accepted");
1786 quic_ctx_t *ctx, *lctx;
1787 session_t *udp_listen_session;
1788 u32 thread_index = vlib_get_thread_index ();
1790 udp_listen_session =
1791 listen_session_get_from_handle (udp_session->listener_handle);
1793 ctx_index = quic_ctx_alloc (thread_index);
1794 ctx = quic_ctx_get (ctx_index, thread_index);
1795 ctx->c_thread_index = udp_session->thread_index;
1796 ctx->c_c_index = ctx_index;
1797 ctx->c_s_index = QUIC_SESSION_INVALID;
1798 ctx->c_quic_ctx_id.udp_session_handle = session_handle (udp_session);
1799 ctx->c_quic_ctx_id.listener_ctx_id = udp_listen_session->opaque;
1800 lctx = quic_ctx_get (udp_listen_session->opaque,
1801 udp_listen_session->thread_index);
1802 ctx->c_quic_ctx_id.udp_is_ip4 = lctx->c_quic_ctx_id.udp_is_ip4;
1803 ctx->c_quic_ctx_id.parent_app_id = lctx->c_quic_ctx_id.parent_app_id;
1804 ctx->c_quic_ctx_id.parent_app_wrk_id =
1805 lctx->c_quic_ctx_id.parent_app_wrk_id;
1806 ctx->timer_handle = QUIC_TIMER_HANDLE_INVALID;
1807 ctx->conn_state = QUIC_CONN_STATE_OPENED;
1809 udp_session->opaque = ctx->c_quic_ctx_id.parent_app_id;
1811 /* Put this ctx in the "opening" pool */
1812 pool_get (quic_main.wrk_ctx[ctx->c_thread_index].opening_ctx_pool,
1814 *pool_index = ctx_index;
1816 /* TODO timeout to delete these if they never connect */
1821 quic_add_segment_callback (u32 client_index, u64 seg_handle)
1823 QUIC_DBG (2, "Called quic_add_segment_callback");
1824 QUIC_DBG (2, "NOT IMPLEMENTED");
1825 /* No-op for builtin */
1830 quic_del_segment_callback (u32 client_index, u64 seg_handle)
1832 QUIC_DBG (2, "Called quic_del_segment_callback");
1833 QUIC_DBG (2, "NOT IMPLEMENTED");
1834 /* No-op for builtin */
1840 quic_custom_app_rx_callback (transport_connection_t * tc)
1842 session_t *stream_session = session_get (tc->s_index, tc->thread_index);
1843 QUIC_DBG (2, "Received app READ notification");
1844 quic_ack_rx_data (stream_session);
1845 svm_fifo_reset_tx_ntf (stream_session->rx_fifo);
1850 quic_custom_tx_callback (void *s)
1852 session_t *stream_session = (session_t *) s;
1853 quicly_stream_t *stream;
1858 (stream_session->session_state >= SESSION_STATE_TRANSPORT_CLOSING))
1861 quic_ctx_get (stream_session->connection_index,
1862 stream_session->thread_index);
1863 if (PREDICT_FALSE (!ctx->c_quic_ctx_id.is_stream))
1865 goto tx_end; /* Most probably a reschedule */
1868 QUIC_DBG (3, "Stream TX event");
1869 quic_ack_rx_data (stream_session);
1870 if (!svm_fifo_max_dequeue (stream_session->tx_fifo))
1873 stream = ctx->c_quic_ctx_id.stream;
1874 if (!quicly_sendstate_is_open (&stream->sendstate))
1876 QUIC_DBG (1, "Warning: tried to send on closed stream");
1880 if ((rv = quicly_stream_sync_sendbuf (stream, 1)) != 0)
1884 quic_send_packets (ctx);
1890 * Returns 0 if a matching connection is found and is on the right thread.
1891 * If a connection is found, even on the wrong thread, ctx_thread and ctx_index
1895 quic_find_packet_ctx (u32 * ctx_thread, u32 * ctx_index,
1896 struct sockaddr *sa, socklen_t salen,
1897 quicly_decoded_packet_t * packet,
1898 u32 caller_thread_index)
1901 quicly_conn_t *conn_;
1902 clib_bihash_kv_16_8_t kv;
1903 clib_bihash_16_8_t *h;
1905 h = &quic_main.connection_hash;
1906 quic_make_connection_key (&kv, &packet->cid.dest.plaintext);
1907 QUIC_DBG (3, "Searching conn with id %lu %lu", kv.key[0], kv.key[1]);
1909 if (clib_bihash_search_16_8 (h, &kv, &kv) == 0)
1911 u32 index = kv.value & UINT32_MAX;
1912 u8 thread_id = kv.value >> 32;
1913 /* Check if this connection belongs to this thread, otherwise
1914 * ask for it to be moved */
1915 if (thread_id != caller_thread_index)
1917 QUIC_DBG (2, "Connection is on wrong thread");
1918 /* Cannot make full check with quicly_is_destination... */
1920 *ctx_thread = thread_id;
1923 ctx_ = quic_ctx_get (index, vlib_get_thread_index ());
1924 conn_ = ctx_->c_quic_ctx_id.conn;
1925 if (conn_ && quicly_is_destination (conn_, sa, salen, packet))
1927 QUIC_DBG (3, "Connection found");
1929 *ctx_thread = thread_id;
1933 QUIC_DBG (3, "connection not found");
1938 quic_receive (quic_ctx_t * ctx, quicly_conn_t * conn,
1939 quicly_decoded_packet_t packet)
1942 u32 ctx_id = ctx->c_c_index;
1943 u32 thread_index = ctx->c_thread_index;
1944 /* TODO : QUICLY_ERROR_PACKET_IGNORED sould be handled */
1945 rv = quicly_receive (conn, &packet);
1948 QUIC_DBG (2, "Quicly receive ignored packet code : %u", rv);
1951 /* ctx pointer may change if a new stream is opened */
1952 ctx = quic_ctx_get (ctx_id, thread_index);
1953 /* Conn may be set to null if the connection is terminated */
1954 if (ctx->c_quic_ctx_id.conn && ctx->conn_state == QUIC_CONN_STATE_HANDSHAKE)
1956 if (quicly_connection_is_ready (conn))
1958 ctx->conn_state = QUIC_CONN_STATE_READY;
1959 if (quicly_is_client (conn))
1961 quic_on_client_connected (ctx);
1962 ctx = quic_ctx_get (ctx_id, thread_index);
1966 return quic_send_packets (ctx);
1970 quic_create_quic_session (quic_ctx_t * ctx)
1972 session_t *quic_session;
1973 app_worker_t *app_wrk;
1977 quic_session = session_alloc (ctx->c_thread_index);
1978 QUIC_DBG (2, "Allocated quic_session, id %u, thread %u ctx %u",
1979 quic_session->session_index, quic_session->thread_index,
1981 quic_session->session_state = SESSION_STATE_LISTENING;
1982 ctx->c_s_index = quic_session->session_index;
1984 lctx = quic_ctx_get (ctx->c_quic_ctx_id.listener_ctx_id, 0);
1986 quic_session->app_wrk_index = lctx->c_quic_ctx_id.parent_app_wrk_id;
1987 quic_session->connection_index = ctx->c_c_index;
1988 quic_session->session_type =
1989 session_type_from_proto_and_ip (TRANSPORT_PROTO_QUIC,
1990 ctx->c_quic_ctx_id.udp_is_ip4);
1991 quic_session->listener_handle = lctx->c_s_index;
1993 /* TODO: don't alloc fifos when we don't transfer data on this session
1994 * but we still need fifos for the events? */
1995 if ((rv = app_worker_init_accepted (quic_session)))
1997 QUIC_DBG (1, "failed to allocate fifos");
1998 session_free (quic_session);
2001 session_lookup_add_connection (&ctx->connection,
2002 session_handle (quic_session));
2003 app_wrk = app_worker_get (quic_session->app_wrk_index);
2004 rv = app_worker_accept_notify (app_wrk, quic_session);
2007 QUIC_DBG (1, "failed to notify accept worker app");
2014 quic_create_connection (quicly_context_t * quicly_ctx,
2015 u64 udp_session_handle, u32 ctx_index,
2016 struct sockaddr *sa,
2017 socklen_t salen, quicly_decoded_packet_t packet)
2019 clib_bihash_kv_16_8_t kv;
2021 quicly_conn_t *conn;
2022 u32 thread_index = vlib_get_thread_index ();
2025 /* new connection, accept and create context if packet is valid
2026 * TODO: check if socket is actually listening? */
2027 if ((rv = quicly_accept (&conn, quicly_ctx, sa, salen,
2028 &packet, ptls_iovec_init (NULL, 0),
2029 &quic_main.next_cid, NULL)))
2031 /* Invalid packet, pass */
2032 assert (conn == NULL);
2033 QUIC_DBG (1, "Accept failed with %d", rv);
2034 /* TODO: cleanup created quic ctx and UDP session */
2037 assert (conn != NULL);
2039 ++quic_main.next_cid.master_id;
2040 ctx = quic_ctx_get (ctx_index, thread_index);
2041 /* Save ctx handle in quicly connection */
2042 quic_store_conn_ctx (conn, ctx);
2043 ctx->c_quic_ctx_id.conn = conn;
2044 ctx->conn_state = QUIC_CONN_STATE_HANDSHAKE;
2046 quic_create_quic_session (ctx);
2048 /* Register connection in connections map */
2049 quic_make_connection_key (&kv, quicly_get_master_id (conn));
2050 kv.value = ((u64) thread_index) << 32 | (u64) ctx_index;
2051 clib_bihash_add_del_16_8 (&quic_main.connection_hash, &kv, 1 /* is_add */ );
2052 QUIC_DBG (2, "Registering conn with id %lu %lu", kv.key[0], kv.key[1]);
2054 return quic_send_packets (ctx);
2058 quic_reset_connection (quicly_context_t * quicly_ctx, u64 udp_session_handle,
2059 struct sockaddr *sa, socklen_t salen,
2060 quicly_decoded_packet_t packet)
2062 /* short header packet; potentially a dead connection. No need to check the
2063 * length of the incoming packet, because loop is prevented by authenticating
2064 * the CID (by checking node_id and thread_id). If the peer is also sending a
2065 * reset, then the next CID is highly likely to contain a non-authenticating
2067 QUIC_DBG (2, "Sending stateless reset");
2069 quicly_datagram_t *dgram;
2070 session_t *udp_session;
2071 if (packet.cid.dest.plaintext.node_id == 0
2072 && packet.cid.dest.plaintext.thread_id == 0)
2074 dgram = quicly_send_stateless_reset (quicly_ctx, sa, salen,
2075 &packet.cid.dest.plaintext);
2078 udp_session = session_get_from_handle (udp_session_handle);
2079 rv = quic_send_datagram (udp_session, dgram);
2080 if (svm_fifo_set_event (udp_session->tx_fifo))
2081 session_send_io_evt_to_thread (udp_session->tx_fifo,
2089 quic_app_rx_callback (session_t * udp_session)
2091 /* Read data from UDP rx_fifo and pass it to the quicly conn. */
2092 quicly_decoded_packet_t packet;
2093 session_dgram_hdr_t ph;
2095 quic_ctx_t *ctx = NULL;
2098 struct sockaddr_in6 sa6;
2099 struct sockaddr *sa = (struct sockaddr *) &sa6;
2101 u32 max_deq, full_len, ctx_index = UINT32_MAX, ctx_thread = UINT32_MAX, ret;
2104 u32 *opening_ctx_pool, *ctx_index_ptr;
2105 u32 app_index = udp_session->opaque;
2106 u64 udp_session_handle = session_handle (udp_session);
2108 u32 thread_index = vlib_get_thread_index ();
2109 app = application_get_if_valid (app_index);
2112 QUIC_DBG (1, "Got RX on detached app");
2113 /* TODO: close this session, cleanup state? */
2119 udp_session = session_get_from_handle (udp_session_handle); /* session alloc might have happened */
2120 f = udp_session->rx_fifo;
2121 max_deq = svm_fifo_max_dequeue (f);
2125 if (max_deq < SESSION_CONN_HDR_LEN)
2127 QUIC_DBG (1, "Not enough data for even a header in RX");
2130 ret = svm_fifo_peek (f, 0, SESSION_CONN_HDR_LEN, (u8 *) & ph);
2131 if (ret != SESSION_CONN_HDR_LEN)
2133 QUIC_DBG (1, "Not enough data for header in RX");
2136 ASSERT (ph.data_offset == 0);
2137 full_len = ph.data_length + SESSION_CONN_HDR_LEN;
2138 if (full_len > max_deq)
2140 QUIC_DBG (1, "Not enough data in fifo RX");
2144 /* Quicly can read len bytes from the fifo at offset:
2145 * ph.data_offset + SESSION_CONN_HDR_LEN */
2146 data = malloc (ph.data_length);
2147 ret = svm_fifo_peek (f, SESSION_CONN_HDR_LEN, ph.data_length, data);
2148 if (ret != ph.data_length)
2150 QUIC_DBG (1, "Not enough data peeked in RX");
2156 quic_build_sockaddr (sa, &salen, &ph.rmt_ip, ph.rmt_port, ph.is_ip4);
2157 plen = quicly_decode_packet ((quicly_context_t *) app->quicly_ctx,
2158 &packet, data, ph.data_length);
2160 if (plen != SIZE_MAX)
2163 err = quic_find_packet_ctx (&ctx_thread, &ctx_index, sa, salen,
2164 &packet, thread_index);
2167 ctx = quic_ctx_get (ctx_index, thread_index);
2168 quic_receive (ctx, ctx->c_quic_ctx_id.conn, packet);
2170 else if (ctx_thread != UINT32_MAX)
2172 /* Connection found but on wrong thread, ask move */
2173 quic_move_connection_to_thread (ctx_index, ctx_thread,
2176 else if ((packet.octets.base[0] & QUICLY_PACKET_TYPE_BITMASK) ==
2177 QUICLY_PACKET_TYPE_INITIAL)
2179 /* Try to find matching "opening" ctx */
2181 quic_main.wrk_ctx[thread_index].opening_ctx_pool;
2184 pool_foreach (ctx_index_ptr, opening_ctx_pool,
2186 ctx = quic_ctx_get (*ctx_index_ptr, thread_index);
2187 if (ctx->c_quic_ctx_id.udp_session_handle == udp_session_handle)
2189 /* Right ctx found, create conn & remove from pool */
2190 quic_create_connection ((quicly_context_t *) app->quicly_ctx,
2191 udp_session_handle, *ctx_index_ptr,
2193 pool_put (opening_ctx_pool, ctx_index_ptr);
2194 goto ctx_search_done;
2202 quic_reset_connection ((quicly_context_t *) app->quicly_ctx,
2203 udp_session_handle, sa, salen, packet);
2207 svm_fifo_dequeue_drop (f, full_len);
2215 quic_common_get_transport_endpoint (quic_ctx_t * ctx,
2216 transport_endpoint_t * tep, u8 is_lcl)
2218 session_t *udp_session;
2219 if (ctx->c_quic_ctx_id.is_stream)
2221 tep->is_ip4 = 255; /* well this is ugly */
2226 session_get_from_handle (ctx->c_quic_ctx_id.udp_session_handle);
2227 session_get_endpoint (udp_session, tep, is_lcl);
2232 quic_get_transport_listener_endpoint (u32 listener_index,
2233 transport_endpoint_t * tep, u8 is_lcl)
2236 app_listener_t *app_listener;
2237 session_t *udp_listen_session;
2238 ctx = quic_ctx_get (listener_index, vlib_get_thread_index ());
2239 if (ctx->is_listener)
2242 app_listener_get_w_handle (ctx->c_quic_ctx_id.udp_session_handle);
2243 udp_listen_session = app_listener_get_session (app_listener);
2244 return session_get_endpoint (udp_listen_session, tep, is_lcl);
2246 quic_common_get_transport_endpoint (ctx, tep, is_lcl);
2250 quic_get_transport_endpoint (u32 ctx_index, u32 thread_index,
2251 transport_endpoint_t * tep, u8 is_lcl)
2254 ctx = quic_ctx_get (ctx_index, thread_index);
2255 quic_common_get_transport_endpoint (ctx, tep, is_lcl);
2258 /*****************************************************************************
2259 * END TRANSPORT PROTO FUNCTIONS
2260 *****************************************************************************/
2263 static session_cb_vft_t quic_app_cb_vft = {
2264 .session_accept_callback = quic_session_accepted_callback,
2265 .session_disconnect_callback = quic_session_disconnect_callback,
2266 .session_connected_callback = quic_session_connected_callback,
2267 .session_reset_callback = quic_session_reset_callback,
2268 .add_segment_callback = quic_add_segment_callback,
2269 .del_segment_callback = quic_del_segment_callback,
2270 .builtin_app_rx_callback = quic_app_rx_callback,
2273 static const transport_proto_vft_t quic_proto = {
2274 .connect = quic_connect,
2275 .close = quic_proto_on_close,
2276 .start_listen = quic_start_listen,
2277 .stop_listen = quic_stop_listen,
2278 .get_connection = quic_connection_get,
2279 .get_listener = quic_listener_get,
2280 .update_time = quic_update_time,
2281 .app_rx_evt = quic_custom_app_rx_callback,
2282 .custom_tx = quic_custom_tx_callback,
2283 .format_connection = format_quic_connection,
2284 .format_half_open = format_quic_half_open,
2285 .format_listener = format_quic_listener,
2286 .get_transport_endpoint = quic_get_transport_endpoint,
2287 .get_transport_listener_endpoint = quic_get_transport_listener_endpoint,
2288 .transport_options = {
2289 .tx_type = TRANSPORT_TX_INTERNAL,
2290 .service_type = TRANSPORT_SERVICE_APP,
2295 static clib_error_t *
2296 quic_init (vlib_main_t * vm)
2298 u32 add_segment_size = (4096ULL << 20) - 1, segment_size = 512 << 20;
2299 vlib_thread_main_t *vtm = vlib_get_thread_main ();
2300 tw_timer_wheel_1t_3w_1024sl_ov_t *tw;
2301 vnet_app_attach_args_t _a, *a = &_a;
2302 u64 options[APP_OPTIONS_N_OPTIONS];
2303 quic_main_t *qm = &quic_main;
2304 u32 fifo_size = QUIC_FIFO_SIZE;
2307 num_threads = 1 /* main thread */ + vtm->n_threads;
2309 memset (a, 0, sizeof (*a));
2310 memset (options, 0, sizeof (options));
2312 a->session_cb_vft = &quic_app_cb_vft;
2313 a->api_client_index = APP_INVALID_INDEX;
2314 a->options = options;
2315 a->name = format (0, "quic");
2316 a->options[APP_OPTIONS_SEGMENT_SIZE] = segment_size;
2317 a->options[APP_OPTIONS_ADD_SEGMENT_SIZE] = add_segment_size;
2318 a->options[APP_OPTIONS_RX_FIFO_SIZE] = fifo_size;
2319 a->options[APP_OPTIONS_TX_FIFO_SIZE] = fifo_size;
2320 a->options[APP_OPTIONS_FLAGS] = APP_OPTIONS_FLAGS_IS_BUILTIN;
2321 a->options[APP_OPTIONS_FLAGS] |= APP_OPTIONS_FLAGS_USE_GLOBAL_SCOPE;
2322 a->options[APP_OPTIONS_FLAGS] |= APP_OPTIONS_FLAGS_IS_TRANSPORT_APP;
2324 if (vnet_application_attach (a))
2326 clib_warning ("failed to attach quic app");
2327 return clib_error_return (0, "failed to attach quic app");
2330 vec_validate (qm->ctx_pool, num_threads - 1);
2331 vec_validate (qm->wrk_ctx, num_threads - 1);
2332 /* Timer wheels, one per thread. */
2333 for (i = 0; i < num_threads; i++)
2335 tw = &qm->wrk_ctx[i].timer_wheel;
2336 tw_timer_wheel_init_1t_3w_1024sl_ov (tw, quic_expired_timers_dispatch,
2337 1e-3 /* timer period 1ms */ , ~0);
2338 tw->last_run_time = vlib_time_now (vlib_get_main ());
2341 clib_bihash_init_16_8 (&qm->connection_hash, "quic connections", 1024,
2344 if (!qm->ca_cert_path)
2345 qm->ca_cert_path = QUIC_DEFAULT_CA_CERT_PATH;
2347 qm->app_index = a->app_index;
2349 qm->tstamp_ticks_per_clock = vm->clib_time.seconds_per_clock
2350 / QUIC_TSTAMP_RESOLUTION;
2352 transport_register_protocol (TRANSPORT_PROTO_QUIC, &quic_proto,
2353 FIB_PROTOCOL_IP4, ~0);
2354 transport_register_protocol (TRANSPORT_PROTO_QUIC, &quic_proto,
2355 FIB_PROTOCOL_IP6, ~0);
2361 VLIB_INIT_FUNCTION (quic_init);
2364 VLIB_PLUGIN_REGISTER () =
2366 .version = VPP_BUILD_VER,
2367 .description = "Quic transport protocol",
2372 * fd.io coding-style-patch-verification: ON
2375 * eval: (c-set-style "gnu")