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 <= sizeof (session_dgram_hdr_t))
189 QUIC_DBG (1, "Not enough space to enqueue header");
190 return QUIC_ERROR_FULL_FIFO;
193 max_enqueue -= sizeof (session_dgram_hdr_t);
195 if (max_enqueue < len)
197 QUIC_DBG (1, "Too much data to send, max_enqueue %u, len %u",
199 return QUIC_ERROR_FULL_FIFO;
202 /* Build packet header for fifo */
203 hdr.data_length = len;
205 hdr.is_ip4 = tc->is_ip4;
206 clib_memcpy (&hdr.lcl_ip, &tc->lcl_ip, sizeof (ip46_address_t));
207 hdr.lcl_port = tc->lcl_port;
209 /* Read dest address from quicly-provided sockaddr */
212 ASSERT (packet->sa.sa_family == AF_INET);
213 struct sockaddr_in *sa4 = (struct sockaddr_in *) &packet->sa;
214 hdr.rmt_port = sa4->sin_port;
215 hdr.rmt_ip.ip4.as_u32 = sa4->sin_addr.s_addr;
219 ASSERT (packet->sa.sa_family == AF_INET6);
220 struct sockaddr_in6 *sa6 = (struct sockaddr_in6 *) &packet->sa;
221 hdr.rmt_port = sa6->sin6_port;
222 clib_memcpy (&hdr.rmt_ip.ip6, &sa6->sin6_addr, 16);
225 ret = svm_fifo_enqueue (f, sizeof (hdr), (u8 *) & hdr);
226 if (ret != sizeof (hdr))
228 QUIC_DBG (1, "Not enough space to enqueue header");
229 return QUIC_ERROR_FULL_FIFO;
231 ret = svm_fifo_enqueue (f, len, packet->data.base);
234 QUIC_DBG (1, "Not enough space to enqueue payload");
235 return QUIC_ERROR_FULL_FIFO;
240 #define QUIC_SEND_PACKET_VEC_SIZE 16
243 quic_sendable_packet_count (session_t * udp_session)
246 max_enqueue = svm_fifo_max_enqueue (udp_session->tx_fifo);
247 return clib_min (max_enqueue /
248 (QUIC_MAX_PACKET_SIZE + sizeof (session_dgram_hdr_t)),
249 QUIC_SEND_PACKET_VEC_SIZE);
253 quic_send_packets (quic_ctx_t * ctx)
255 quicly_datagram_t *packets[QUIC_SEND_PACKET_VEC_SIZE];
256 session_t *udp_session;
258 size_t num_packets, i, max_packets;
259 quicly_context_t *quicly_context;
260 app_worker_t *app_wrk;
264 /* We have sctx, get qctx */
265 if (ctx->c_quic_ctx_id.is_stream)
267 quic_ctx_get (ctx->c_quic_ctx_id.quic_connection_ctx_id,
268 ctx->c_thread_index);
270 ASSERT (!ctx->c_quic_ctx_id.is_stream);
273 session_get_from_handle (ctx->c_quic_ctx_id.udp_session_handle);
274 conn = ctx->c_quic_ctx_id.conn;
279 /* TODO : quicly can assert it can send min_packets up to 2 */
280 if (quic_sendable_packet_count (udp_session) < 2)
283 app_wrk = app_worker_get_if_valid (ctx->c_quic_ctx_id.parent_app_wrk_id);
286 clib_warning ("Tried to send packets on non existing app worker %u",
287 ctx->c_quic_ctx_id.parent_app_wrk_id);
288 quic_connection_closed (ctx->c_c_index, ctx->c_thread_index);
291 app = application_get (app_wrk->app_index);
293 quicly_context = (quicly_context_t *) app->quicly_ctx;
296 max_packets = quic_sendable_packet_count (udp_session);
299 num_packets = max_packets;
300 if ((err = quicly_send (conn, packets, &num_packets)))
303 for (i = 0; i != num_packets; ++i)
305 if ((err = quic_send_datagram (udp_session, packets[i])))
308 quicly_context->packet_allocator->
309 free_packet (quicly_context->packet_allocator, packets[i]);
312 while (num_packets > 0 && num_packets == max_packets);
314 if (svm_fifo_set_event (udp_session->tx_fifo))
315 session_send_io_evt_to_thread (udp_session->tx_fifo, SESSION_IO_EVT_TX);
318 quic_update_timer (ctx);
322 if ((err != QUICLY_ERROR_PACKET_IGNORED) & (err !=
323 QUICLY_ERROR_FREE_CONNECTION))
324 clib_warning ("Quic error '%s'.", quic_format_err (err));
325 quic_connection_closed (ctx->c_c_index, ctx->c_thread_index);
329 /*****************************************************************************
330 * START QUICLY CALLBACKS
331 * Called from QUIC lib
332 *****************************************************************************/
335 quic_on_stream_destroy (quicly_stream_t * stream, int err)
337 quic_stream_data_t *stream_data = (quic_stream_data_t *) stream->data;
339 quic_ctx_get (stream_data->ctx_id, stream_data->thread_index);
340 session_t *stream_session =
341 session_get (sctx->c_s_index, sctx->c_thread_index);
342 QUIC_DBG (2, "DESTROYED_STREAM: session 0x%lx (code 0x%x)",
343 session_handle (stream_session), err);
345 stream_session->session_state = SESSION_STATE_CLOSED;
346 session_transport_delete_notify (&sctx->connection);
348 quic_ctx_free (sctx);
353 quic_on_stop_sending (quicly_stream_t * stream, int err)
356 quic_stream_data_t *stream_data = (quic_stream_data_t *) stream->data;
358 quic_ctx_get (stream_data->ctx_id, stream_data->thread_index);
359 session_t *stream_session =
360 session_get (sctx->c_s_index, sctx->c_thread_index);
361 clib_warning ("(NOT IMPLEMENTD) STOP_SENDING: session 0x%lx (code 0x%x)",
362 session_handle (stream_session), err);
364 /* TODO : handle STOP_SENDING */
369 quic_on_receive_reset (quicly_stream_t * stream, int err)
371 quic_stream_data_t *stream_data = (quic_stream_data_t *) stream->data;
373 quic_ctx_get (stream_data->ctx_id, stream_data->thread_index);
375 session_t *stream_session =
376 session_get (sctx->c_s_index, sctx->c_thread_index);
377 clib_warning ("RESET_STREAM: session 0x%lx (code 0x%x)",
378 session_handle (stream_session), err);
381 session_transport_closing_notify (&sctx->connection);
386 get_stream_session_from_stream (quicly_stream_t * stream)
389 quic_stream_data_t *stream_data;
391 stream_data = (quic_stream_data_t *) stream->data;
392 ctx = quic_ctx_get (stream_data->ctx_id, stream_data->thread_index);
393 return session_get (ctx->c_s_index, stream_data->thread_index);
397 quic_on_receive (quicly_stream_t * stream, size_t off, const void *src,
400 QUIC_DBG (3, "received data: %lu bytes, offset %lu", len, off);
403 session_t *stream_session;
404 app_worker_t *app_wrk;
406 quic_stream_data_t *stream_data;
409 stream_data = (quic_stream_data_t *) stream->data;
410 sctx = quic_ctx_get (stream_data->ctx_id, stream_data->thread_index);
411 stream_session = session_get (sctx->c_s_index, stream_data->thread_index);
412 f = stream_session->rx_fifo;
414 max_enq = svm_fifo_max_enqueue_prod (f);
415 QUIC_DBG (3, "Enqueuing %u at off %u in %u space", len, off, max_enq);
416 if (off + len > max_enq)
418 /* TODO : can we find a better solution, listening on RX fifo evts ? */
419 QUIC_DBG (3, "Ingoring packet, RX fifo is full");
420 return QUICLY_ERROR_PACKET_IGNORED;
424 rlen = svm_fifo_enqueue (f, len, (u8 *) src);
425 ASSERT (rlen >= len);
427 quicly_stream_sync_recvbuf (stream, rlen);
428 app_wrk = app_worker_get_if_valid (stream_session->app_wrk_index);
429 if (PREDICT_TRUE (app_wrk != 0))
430 app_worker_lock_and_send_event (app_wrk, stream_session,
435 rlen = svm_fifo_enqueue_with_offset (f, off, len, (u8 *) src);
442 quic_fifo_egress_shift (quicly_stream_t * stream, size_t delta)
444 session_t *stream_session;
447 stream_session = get_stream_session_from_stream (stream);
448 f = stream_session->tx_fifo;
450 ASSERT (svm_fifo_dequeue_drop (f, delta) == delta);
451 quicly_stream_sync_sendbuf (stream, 0);
455 quic_fifo_egress_emit (quicly_stream_t * stream, size_t off, void *dst,
456 size_t * len, int *wrote_all)
458 session_t *stream_session;
460 u32 deq_max, first_deq, max_rd_chunk, rem_offset;
462 stream_session = get_stream_session_from_stream (stream);
463 f = stream_session->tx_fifo;
465 QUIC_DBG (3, "Emitting %u, offset %u", *len, off);
467 deq_max = svm_fifo_max_dequeue_cons (f);
468 ASSERT (off <= deq_max);
469 if (off + *len < deq_max)
475 QUIC_DBG (3, "Wrote ALL");
477 *len = deq_max - off;
480 /* TODO, use something like : return svm_fifo_peek (f, off, *len, dst); */
481 max_rd_chunk = svm_fifo_max_read_chunk (f);
484 if (off < max_rd_chunk)
486 first_deq = clib_min (*len, max_rd_chunk - off);
487 clib_memcpy_fast (dst, svm_fifo_head (f) + off, first_deq);
490 if (max_rd_chunk < off + *len)
492 rem_offset = max_rd_chunk < off ? off - max_rd_chunk : 0;
493 clib_memcpy_fast (dst + first_deq, f->head_chunk->data + rem_offset,
500 static const quicly_stream_callbacks_t quic_stream_callbacks = {
501 .on_destroy = quic_on_stream_destroy,
502 .on_send_shift = quic_fifo_egress_shift,
503 .on_send_emit = quic_fifo_egress_emit,
504 .on_send_stop = quic_on_stop_sending,
505 .on_receive = quic_on_receive,
506 .on_receive_reset = quic_on_receive_reset
510 quic_accept_stream (void *s)
512 quicly_stream_t *stream = (quicly_stream_t *) s;
513 session_t *stream_session, *quic_session;
514 quic_stream_data_t *stream_data;
515 app_worker_t *app_wrk;
516 quic_ctx_t *qctx, *sctx;
520 sctx_id = quic_ctx_alloc (vlib_get_thread_index ());
522 qctx = quic_get_conn_ctx (stream->conn);
524 stream_session = session_alloc (qctx->c_thread_index);
525 QUIC_DBG (2, "Allocated stream_session, id %u, thread %u ctx %u",
526 stream_session->session_index, stream_session->thread_index,
528 sctx = quic_ctx_get (sctx_id, qctx->c_thread_index);
529 sctx->c_quic_ctx_id.parent_app_wrk_id =
530 qctx->c_quic_ctx_id.parent_app_wrk_id;
531 sctx->c_quic_ctx_id.parent_app_id = qctx->c_quic_ctx_id.parent_app_id;
532 sctx->c_quic_ctx_id.quic_connection_ctx_id = qctx->c_c_index;
533 sctx->c_c_index = sctx_id;
534 sctx->c_quic_ctx_id.is_stream = 1;
535 sctx->c_s_index = stream_session->session_index;
536 sctx->c_quic_ctx_id.stream = stream;
538 stream_data = (quic_stream_data_t *) stream->data;
539 stream_data->ctx_id = sctx_id;
540 stream_data->thread_index = sctx->c_thread_index;
542 sctx->c_s_index = stream_session->session_index;
543 stream_session->session_state = SESSION_STATE_CREATED;
544 stream_session->app_wrk_index = sctx->c_quic_ctx_id.parent_app_wrk_id;
545 stream_session->connection_index = sctx->c_c_index;
546 stream_session->session_type =
547 session_type_from_proto_and_ip (TRANSPORT_PROTO_QUIC,
548 qctx->c_quic_ctx_id.udp_is_ip4);
549 quic_session = session_get (qctx->c_s_index, qctx->c_thread_index);
550 stream_session->listener_handle = listen_session_get_handle (quic_session);
552 app_wrk = app_worker_get (stream_session->app_wrk_index);
553 if ((rv = app_worker_init_connected (app_wrk, stream_session)))
555 QUIC_DBG (1, "failed to allocate fifos");
556 session_free (stream_session);
557 quicly_reset_stream (stream, QUIC_APP_ALLOCATION_ERROR);
561 rv = app_worker_accept_notify (app_wrk, stream_session);
564 QUIC_DBG (1, "failed to notify accept worker app");
565 session_free_w_fifos (stream_session);
566 quicly_reset_stream (stream, QUIC_APP_ACCEPT_NOTIFY_ERROR);
569 session_lookup_add_connection (&sctx->connection,
570 session_handle (stream_session));
574 quic_on_stream_open (quicly_stream_open_t * self, quicly_stream_t * stream)
576 QUIC_DBG (2, "on_stream_open called");
577 stream->data = malloc (sizeof (quic_stream_data_t));
578 stream->callbacks = &quic_stream_callbacks;
579 /* Notify accept on parent qsession, but only if this is not a locally
580 * initiated stream */
581 if (!quicly_stream_is_self_initiated (stream))
583 quic_accept_stream (stream);
588 static quicly_stream_open_t on_stream_open = { &quic_on_stream_open };
591 quic_on_conn_close (quicly_closed_by_peer_t * self, quicly_conn_t * conn,
592 int code, uint64_t frame_type,
593 const char *reason, size_t reason_len)
595 QUIC_DBG (2, "connection closed, reason: %.*s", reason, reason_len);
596 quic_ctx_t *ctx = quic_get_conn_ctx (conn);
597 session_transport_closing_notify (&ctx->connection);
600 static quicly_closed_by_peer_t on_closed_by_peer = { &quic_on_conn_close };
603 /*****************************************************************************
604 * END QUICLY CALLBACKS
605 *****************************************************************************/
607 /* single-entry session cache */
608 struct st_util_session_cache_t
610 ptls_encrypt_ticket_t super;
616 encrypt_ticket_cb (ptls_encrypt_ticket_t * _self, ptls_t * tls,
617 int is_encrypt, ptls_buffer_t * dst, ptls_iovec_t src)
619 struct st_util_session_cache_t *self = (void *) _self;
625 /* replace the cached entry along with a newly generated session id */
626 free (self->data.base);
627 if ((self->data.base = malloc (src.len)) == NULL)
628 return PTLS_ERROR_NO_MEMORY;
630 ptls_get_context (tls)->random_bytes (self->id, sizeof (self->id));
631 memcpy (self->data.base, src.base, src.len);
632 self->data.len = src.len;
634 /* store the session id in buffer */
635 if ((ret = ptls_buffer_reserve (dst, sizeof (self->id))) != 0)
637 memcpy (dst->base + dst->off, self->id, sizeof (self->id));
638 dst->off += sizeof (self->id);
644 /* check if session id is the one stored in cache */
645 if (src.len != sizeof (self->id))
646 return PTLS_ERROR_SESSION_NOT_FOUND;
647 if (memcmp (self->id, src.base, sizeof (self->id)) != 0)
648 return PTLS_ERROR_SESSION_NOT_FOUND;
650 /* return the cached value */
651 if ((ret = ptls_buffer_reserve (dst, self->data.len)) != 0)
653 memcpy (dst->base + dst->off, self->data.base, self->data.len);
654 dst->off += self->data.len;
661 static struct st_util_session_cache_t sc = {
663 .cb = encrypt_ticket_cb,
667 static ptls_context_t quic_tlsctx = {
668 .random_bytes = ptls_openssl_random_bytes,
669 .get_time = &ptls_get_time,
670 .key_exchanges = ptls_openssl_key_exchanges,
671 .cipher_suites = ptls_openssl_cipher_suites,
677 .on_client_hello = NULL,
678 .emit_certificate = NULL,
679 .sign_certificate = NULL,
680 .verify_certificate = NULL,
681 .ticket_lifetime = 86400,
682 .max_early_data_size = 8192,
683 .hkdf_label_prefix__obsolete = NULL,
684 .require_dhe_on_psk = 1,
685 .encrypt_ticket = &sc.super,
690 ptls_compare_separator_line (const char *line, const char *begin_or_end,
693 int ret = strncmp (line, "-----", 5);
694 size_t text_index = 5;
698 size_t begin_or_end_length = strlen (begin_or_end);
699 ret = strncmp (line + text_index, begin_or_end, begin_or_end_length);
700 text_index += begin_or_end_length;
705 ret = line[text_index] - ' ';
711 size_t label_length = strlen (label);
712 ret = strncmp (line + text_index, label, label_length);
713 text_index += label_length;
718 ret = strncmp (line + text_index, "-----", 5);
725 ptls_get_bio_pem_object (BIO * bio, const char *label, ptls_buffer_t * buf)
727 int ret = PTLS_ERROR_PEM_LABEL_NOT_FOUND;
729 ptls_base64_decode_state_t state;
731 /* Get the label on a line by itself */
732 while (BIO_gets (bio, line, 256))
734 if (ptls_compare_separator_line (line, "BEGIN", label) == 0)
737 ptls_base64_decode_init (&state);
741 /* Get the data in the buffer */
742 while (ret == 0 && BIO_gets (bio, line, 256))
744 if (ptls_compare_separator_line (line, "END", label) == 0)
746 if (state.status == PTLS_BASE64_DECODE_DONE
747 || (state.status == PTLS_BASE64_DECODE_IN_PROGRESS
754 ret = PTLS_ERROR_INCORRECT_BASE64;
760 ret = ptls_base64_decode (line, &state, buf);
768 ptls_load_bio_pem_objects (BIO * bio, const char *label, ptls_iovec_t * list,
769 size_t list_max, size_t * nb_objects)
778 while (count < list_max)
782 ptls_buffer_init (&buf, "", 0);
784 ret = ptls_get_bio_pem_object (bio, label, &buf);
788 if (buf.off > 0 && buf.is_allocated)
790 list[count].base = buf.base;
791 list[count].len = buf.off;
796 ptls_buffer_dispose (&buf);
801 ptls_buffer_dispose (&buf);
807 if (ret == PTLS_ERROR_PEM_LABEL_NOT_FOUND && count > 0)
817 #define PTLS_MAX_CERTS_IN_CONTEXT 16
820 ptls_load_bio_certificates (ptls_context_t * ctx, BIO * bio)
824 ctx->certificates.list =
825 (ptls_iovec_t *) malloc (PTLS_MAX_CERTS_IN_CONTEXT *
826 sizeof (ptls_iovec_t));
828 if (ctx->certificates.list == NULL)
830 ret = PTLS_ERROR_NO_MEMORY;
835 ptls_load_bio_pem_objects (bio, "CERTIFICATE", ctx->certificates.list,
836 PTLS_MAX_CERTS_IN_CONTEXT,
837 &ctx->certificates.count);
844 load_bio_certificate_chain (ptls_context_t * ctx, const char *cert_data)
847 cert_bio = BIO_new_mem_buf (cert_data, -1);
848 if (ptls_load_bio_certificates (ctx, cert_bio) != 0)
851 fprintf (stderr, "failed to load certificate:%s\n", strerror (errno));
858 load_bio_private_key (ptls_context_t * ctx, const char *pk_data)
860 static ptls_openssl_sign_certificate_t sc;
864 key_bio = BIO_new_mem_buf (pk_data, -1);
865 pkey = PEM_read_bio_PrivateKey (key_bio, NULL, NULL, NULL);
870 fprintf (stderr, "failed to read private key from app configuration\n");
874 ptls_openssl_init_sign_certificate (&sc, pkey);
875 EVP_PKEY_free (pkey);
877 ctx->sign_certificate = &sc.super;
881 quic_make_connection_key (clib_bihash_kv_16_8_t * kv,
882 const quicly_cid_plaintext_t * id)
884 kv->key[0] = ((u64) id->master_id) << 32 | (u64) id->thread_id;
885 kv->key[1] = id->node_id;
889 quic_connection_closed (u32 ctx_index, u32 thread_index)
891 /* TODO : free fifos */
892 QUIC_DBG (2, "QUIC connection closed");
893 tw_timer_wheel_1t_3w_1024sl_ov_t *tw;
894 clib_bihash_kv_16_8_t kv;
898 ctx = quic_ctx_get (ctx_index, thread_index);
900 ASSERT (!ctx->c_quic_ctx_id.is_stream);
901 /* TODO if connection is not established, just delete the session? */
904 if (ctx->timer_handle != QUIC_TIMER_HANDLE_INVALID)
906 tw = &quic_main.wrk_ctx[thread_index].timer_wheel;
907 tw_timer_stop_1t_3w_1024sl_ov (tw, ctx->timer_handle);
910 /* Delete the connection from the connection map */
911 conn = ctx->c_quic_ctx_id.conn;
912 quic_make_connection_key (&kv, quicly_get_master_id (conn));
913 QUIC_DBG (2, "Deleting conn with id %lu %lu", kv.key[0], kv.key[1]);
914 clib_bihash_add_del_16_8 (&quic_main.connection_hash, &kv, 0 /* is_add */ );
916 quic_disconnect_transport (ctx);
917 session_transport_delete_notify (&ctx->connection);
918 /* Do not try to send anything anymore */
919 quicly_free (ctx->c_quic_ctx_id.conn);
920 ctx->c_quic_ctx_id.conn = NULL;
925 allocate_quicly_ctx (application_t * app, u8 is_client)
932 quicly_context_t *quicly_ctx;
933 ptls_iovec_t key_vec;
934 QUIC_DBG (2, "Called allocate_quicly_ctx");
938 QUIC_DBG (1, "Trying to reallocate quicly_ctx");
942 ctx_data = malloc (sizeof (*ctx_data));
943 quicly_ctx = &ctx_data->_;
944 app->quicly_ctx = (u64 *) quicly_ctx;
945 memcpy (quicly_ctx, &quicly_spec_context, sizeof (quicly_context_t));
947 quicly_ctx->max_packet_size = QUIC_MAX_PACKET_SIZE;
948 quicly_ctx->tls = &quic_tlsctx;
949 quicly_ctx->stream_open = &on_stream_open;
950 quicly_ctx->closed_by_peer = &on_closed_by_peer;
951 quicly_ctx->now = &quicly_vpp_now_cb;
953 quicly_amend_ptls_context (quicly_ctx->tls);
955 quicly_ctx->event_log.mask = 0; /* logs */
956 quicly_ctx->event_log.cb = quicly_new_default_event_logger (stderr);
958 quicly_ctx->transport_params.max_data = QUIC_INT_MAX;
959 quicly_ctx->transport_params.max_streams_uni = QUIC_INT_MAX;
960 quicly_ctx->transport_params.max_streams_bidi = QUIC_INT_MAX;
961 quicly_ctx->transport_params.max_stream_data.bidi_local = (QUIC_FIFO_SIZE - 1); /* max_enq is SIZE - 1 */
962 quicly_ctx->transport_params.max_stream_data.bidi_remote = (QUIC_FIFO_SIZE - 1); /* max_enq is SIZE - 1 */
963 quicly_ctx->transport_params.max_stream_data.uni = QUIC_INT_MAX;
965 quicly_ctx->tls->random_bytes (ctx_data->cid_key, 16);
966 ctx_data->cid_key[16] = 0;
967 key_vec = ptls_iovec_init (ctx_data->cid_key, strlen (ctx_data->cid_key));
968 quicly_ctx->cid_encryptor =
969 quicly_new_default_cid_encryptor (&ptls_openssl_bfecb,
970 &ptls_openssl_sha256, key_vec);
971 if (!is_client && app->tls_key != NULL && app->tls_cert != NULL)
973 load_bio_private_key (quicly_ctx->tls, (char *) app->tls_key);
974 load_bio_certificate_chain (quicly_ctx->tls, (char *) app->tls_cert);
979 /*****************************************************************************
980 * BEGIN TIMERS HANDLING
981 *****************************************************************************/
984 quic_get_thread_time (u8 thread_index)
986 return quic_main.wrk_ctx[thread_index].time_now;
990 quic_get_time (quicly_now_t * self)
992 u8 thread_index = vlib_get_thread_index ();
993 return quic_get_thread_time (thread_index);
997 quic_set_time_now (u32 thread_index)
999 vlib_main_t *vlib_main = vlib_get_main ();
1000 f64 time = vlib_time_now (vlib_main);
1001 quic_main.wrk_ctx[thread_index].time_now = (int64_t) (time * 1000.f);
1002 return quic_main.wrk_ctx[thread_index].time_now;
1005 /* Transport proto callback */
1007 quic_update_time (f64 now, u8 thread_index)
1009 tw_timer_wheel_1t_3w_1024sl_ov_t *tw;
1011 tw = &quic_main.wrk_ctx[thread_index].timer_wheel;
1012 quic_set_time_now (thread_index);
1013 tw_timer_expire_timers_1t_3w_1024sl_ov (tw, now);
1017 quic_timer_expired (u32 conn_index)
1020 QUIC_DBG (4, "Timer expired for conn %u at %ld", conn_index,
1021 quic_get_time (NULL));
1022 ctx = quic_ctx_get (conn_index, vlib_get_thread_index ());
1023 ctx->timer_handle = QUIC_TIMER_HANDLE_INVALID;
1024 quic_send_packets (ctx);
1028 quic_update_timer (quic_ctx_t * ctx)
1030 tw_timer_wheel_1t_3w_1024sl_ov_t *tw;
1031 int64_t next_timeout, next_interval;
1032 session_t *quic_session;
1034 /* This timeout is in ms which is the unit of our timer */
1035 next_timeout = quicly_get_first_timeout (ctx->c_quic_ctx_id.conn);
1036 next_interval = next_timeout - quic_get_time (NULL);
1038 if (next_timeout == 0 || next_interval <= 0)
1040 if (ctx->c_s_index == QUIC_SESSION_INVALID)
1046 quic_session = session_get (ctx->c_s_index, ctx->c_thread_index);
1047 if (svm_fifo_set_event (quic_session->tx_fifo))
1048 session_send_io_evt_to_thread_custom (quic_session,
1049 quic_session->thread_index,
1050 SESSION_IO_EVT_BUILTIN_TX);
1055 tw = &quic_main.wrk_ctx[vlib_get_thread_index ()].timer_wheel;
1057 QUIC_DBG (4, "Timer set to %ld (int %ld) for ctx %u", next_timeout,
1058 next_interval, ctx->c_c_index);
1060 if (ctx->timer_handle == QUIC_TIMER_HANDLE_INVALID)
1062 if (next_timeout == INT64_MAX)
1064 QUIC_DBG (4, "timer for ctx %u already stopped", ctx->c_c_index);
1068 tw_timer_start_1t_3w_1024sl_ov (tw, ctx->c_c_index, 0, next_interval);
1072 if (next_timeout == INT64_MAX)
1074 tw_timer_stop_1t_3w_1024sl_ov (tw, ctx->timer_handle);
1075 ctx->timer_handle = QUIC_TIMER_HANDLE_INVALID;
1076 QUIC_DBG (4, "Stopping timer for ctx %u", ctx->c_c_index);
1079 tw_timer_update_1t_3w_1024sl_ov (tw, ctx->timer_handle,
1086 quic_expired_timers_dispatch (u32 * expired_timers)
1090 for (i = 0; i < vec_len (expired_timers); i++)
1092 quic_timer_expired (expired_timers[i]);
1097 /*****************************************************************************
1098 * END TIMERS HANDLING
1100 * BEGIN TRANSPORT PROTO FUNCTIONS
1101 *****************************************************************************/
1104 quic_connect (transport_endpoint_cfg_t * tep)
1106 QUIC_DBG (2, "Called quic_connect");
1107 session_endpoint_cfg_t *sep;
1108 int connect_stream = 0;
1110 sep = (session_endpoint_cfg_t *) tep;
1114 /* TODO: better logic to detect if this is a stream or a connection request */
1120 return quic_connect_new_stream (sep);
1124 return quic_connect_new_connection (sep);
1129 quic_connect_new_stream (session_endpoint_cfg_t * sep)
1131 uint64_t quic_session_handle;
1132 session_t *quic_session, *stream_session;
1133 quic_stream_data_t *stream_data;
1134 quicly_stream_t *stream;
1135 quicly_conn_t *conn;
1136 app_worker_t *app_wrk;
1137 quic_ctx_t *qctx, *sctx;
1141 /* Find base session to which the user want to attach a stream */
1142 quic_session_handle = sep->transport_opts;
1143 QUIC_DBG (2, "Opening new stream (qsession %u)", sep->transport_opts);
1144 quic_session = session_get_from_handle (quic_session_handle);
1146 if (quic_session->session_type !=
1147 session_type_from_proto_and_ip (TRANSPORT_PROTO_QUIC, sep->is_ip4))
1149 QUIC_DBG (1, "received incompatible session");
1153 app_wrk = app_worker_get_if_valid (quic_session->app_wrk_index);
1156 QUIC_DBG (1, "Invalid app worker :(");
1160 sctx_index = quic_ctx_alloc (quic_session->thread_index); /* Allocate before we get pointers */
1161 sctx = quic_ctx_get (sctx_index, quic_session->thread_index);
1163 quic_ctx_get (quic_session->connection_index, quic_session->thread_index);
1164 if (qctx->c_quic_ctx_id.is_stream)
1166 QUIC_DBG (1, "session is a stream");
1167 quic_ctx_free (sctx);
1171 sctx->c_quic_ctx_id.parent_app_wrk_id =
1172 qctx->c_quic_ctx_id.parent_app_wrk_id;
1173 sctx->c_quic_ctx_id.parent_app_id = qctx->c_quic_ctx_id.parent_app_id;
1174 sctx->c_quic_ctx_id.quic_connection_ctx_id = qctx->c_c_index;
1175 sctx->c_c_index = sctx_index;
1176 sctx->c_quic_ctx_id.is_stream = 1;
1178 conn = qctx->c_quic_ctx_id.conn;
1180 if (!conn || !quicly_connection_is_ready (conn))
1183 if ((rv = quicly_open_stream (conn, &stream, 0 /* uni */ )))
1185 QUIC_DBG (2, "Stream open failed with %d", rv);
1188 sctx->c_quic_ctx_id.stream = stream;
1190 QUIC_DBG (2, "Opened stream %d, creating session", stream->stream_id);
1192 stream_session = session_alloc (qctx->c_thread_index);
1193 QUIC_DBG (2, "Allocated stream_session, id %u, thread %u ctx %u",
1194 stream_session->session_index, stream_session->thread_index,
1196 stream_session->app_wrk_index = app_wrk->wrk_index;
1197 stream_session->connection_index = sctx_index;
1198 stream_session->listener_handle = quic_session_handle;
1199 stream_session->session_type =
1200 session_type_from_proto_and_ip (TRANSPORT_PROTO_QUIC,
1201 qctx->c_quic_ctx_id.udp_is_ip4);
1203 sctx->c_s_index = stream_session->session_index;
1205 if (app_worker_init_connected (app_wrk, stream_session))
1207 QUIC_DBG (1, "failed to app_worker_init_connected");
1208 quicly_reset_stream (stream, QUIC_APP_ALLOCATION_ERROR);
1209 session_free_w_fifos (stream_session);
1210 quic_ctx_free (sctx);
1211 return app_worker_connect_notify (app_wrk, NULL, sep->opaque);
1214 stream_session->session_state = SESSION_STATE_READY;
1215 if (app_worker_connect_notify (app_wrk, stream_session, sep->opaque))
1217 QUIC_DBG (1, "failed to notify app");
1218 quicly_reset_stream (stream, QUIC_APP_CONNECT_NOTIFY_ERROR);
1219 session_free_w_fifos (stream_session);
1220 quic_ctx_free (sctx);
1223 session_lookup_add_connection (&sctx->connection,
1224 session_handle (stream_session));
1225 stream_data = (quic_stream_data_t *) stream->data;
1226 stream_data->ctx_id = sctx->c_c_index;
1227 stream_data->thread_index = sctx->c_thread_index;
1232 quic_connect_new_connection (session_endpoint_cfg_t * sep)
1234 vnet_connect_args_t _cargs = { {}, }, *cargs = &_cargs;
1235 quic_main_t *qm = &quic_main;
1237 app_worker_t *app_wrk;
1242 ctx_index = quic_ctx_alloc (vlib_get_thread_index ());
1243 ctx = quic_ctx_get (ctx_index, vlib_get_thread_index ());
1244 ctx->c_quic_ctx_id.parent_app_wrk_id = sep->app_wrk_index;
1245 ctx->c_s_index = QUIC_SESSION_INVALID;
1246 ctx->c_c_index = ctx_index;
1247 ctx->c_quic_ctx_id.udp_is_ip4 = sep->is_ip4;
1248 ctx->timer_handle = QUIC_TIMER_HANDLE_INVALID;
1249 ctx->conn_state = QUIC_CONN_STATE_HANDSHAKE;
1250 ctx->client_opaque = sep->opaque;
1253 ctx->srv_hostname = format (0, "%v", sep->hostname);
1254 vec_terminate_c_string (ctx->srv_hostname);
1258 /* needed by quic for crypto + determining client / server */
1260 format (0, "%U", format_ip46_address, &sep->ip, sep->is_ip4);
1263 clib_memcpy (&cargs->sep, sep, sizeof (session_endpoint_cfg_t));
1264 cargs->sep.transport_proto = TRANSPORT_PROTO_UDPC;
1265 cargs->app_index = qm->app_index;
1266 cargs->api_context = ctx_index;
1268 app_wrk = app_worker_get (sep->app_wrk_index);
1269 app = application_get (app_wrk->app_index);
1270 ctx->c_quic_ctx_id.parent_app_id = app_wrk->app_index;
1271 cargs->sep_ext.ns_index = app->ns_index;
1273 allocate_quicly_ctx (app, 1 /* is client */ );
1275 if ((error = vnet_connect (cargs)))
1282 quic_proto_on_close (u32 ctx_index, u32 thread_index)
1284 quic_ctx_t *ctx = quic_ctx_get (ctx_index, thread_index);
1285 if (ctx->c_quic_ctx_id.is_stream)
1288 session_t *stream_session =
1289 session_get (ctx->c_s_index, ctx->c_thread_index);
1290 clib_warning ("Closing Ssession 0x%lx",
1291 session_handle (stream_session));
1293 quicly_stream_t *stream = ctx->c_quic_ctx_id.stream;
1294 quicly_reset_stream (stream, QUIC_APP_ERROR_NONE);
1299 session_t *quic_session =
1300 session_get (ctx->c_s_index, ctx->c_thread_index);
1301 clib_warning ("Closing Qsession 0x%lx", session_handle (quic_session));
1303 quicly_conn_t *conn = ctx->c_quic_ctx_id.conn;
1304 /* Start connection closing. Keep sending packets until quicly_send
1305 returns QUICLY_ERROR_FREE_CONNECTION */
1306 quicly_close (conn, 0, "");
1307 /* This also causes all streams to be closed (and the cb called) */
1309 quic_send_packets (ctx);
1313 quic_start_listen (u32 quic_listen_session_index, transport_endpoint_t * tep)
1315 vnet_listen_args_t _bargs, *args = &_bargs;
1316 quic_main_t *qm = &quic_main;
1317 session_handle_t udp_handle;
1318 session_endpoint_cfg_t *sep;
1319 session_t *udp_listen_session;
1320 app_worker_t *app_wrk;
1324 app_listener_t *app_listener;
1326 sep = (session_endpoint_cfg_t *) tep;
1327 app_wrk = app_worker_get (sep->app_wrk_index);
1328 /* We need to call this because we call app_worker_init_connected in
1329 * quic_accept_stream, which assumes the connect segment manager exists */
1330 app_worker_alloc_connects_segment_manager (app_wrk);
1331 app = application_get (app_wrk->app_index);
1332 QUIC_DBG (2, "Called quic_start_listen for app %d", app_wrk->app_index);
1334 allocate_quicly_ctx (app, 0 /* is_client */ );
1336 sep->transport_proto = TRANSPORT_PROTO_UDPC;
1337 memset (args, 0, sizeof (*args));
1338 args->app_index = qm->app_index;
1339 args->sep_ext = *sep;
1340 args->sep_ext.ns_index = app->ns_index;
1341 if (vnet_listen (args))
1344 lctx_index = quic_ctx_alloc (0); /* listener */
1345 udp_handle = args->handle;
1346 app_listener = app_listener_get_w_handle (udp_handle);
1347 udp_listen_session = app_listener_get_session (app_listener);
1348 udp_listen_session->opaque = lctx_index;
1350 lctx = quic_ctx_get (lctx_index, 0); /* listener */
1351 lctx->is_listener = 1;
1352 lctx->c_quic_ctx_id.parent_app_wrk_id = sep->app_wrk_index;
1353 lctx->c_quic_ctx_id.parent_app_id = app_wrk->app_index;
1354 lctx->c_quic_ctx_id.udp_session_handle = udp_handle;
1355 lctx->c_quic_ctx_id.udp_is_ip4 = sep->is_ip4;
1356 lctx->c_s_index = quic_listen_session_index;
1358 QUIC_DBG (2, "Started listening %d", lctx_index);
1363 quic_stop_listen (u32 lctx_index)
1365 QUIC_DBG (2, "Called quic_stop_listen");
1368 lctx = quic_ctx_get (lctx_index, 0);
1369 vnet_unlisten_args_t a = {
1370 .handle = lctx->c_quic_ctx_id.udp_session_handle,
1371 .app_index = quic_main.app_index,
1372 .wrk_map_index = 0 /* default wrk */
1374 if (vnet_unlisten (&a))
1375 clib_warning ("unlisten errored");
1377 /* TODO: crypto state cleanup */
1379 quic_ctx_free (lctx);
1383 static transport_connection_t *
1384 quic_connection_get (u32 ctx_index, u32 thread_index)
1386 QUIC_DBG (2, "Called quic_connection_get");
1388 ctx = quic_ctx_get (ctx_index, thread_index);
1389 return &ctx->connection;
1392 static transport_connection_t *
1393 quic_listener_get (u32 listener_index)
1395 QUIC_DBG (2, "Called quic_listener_get");
1397 ctx = quic_ctx_get (listener_index, 0);
1398 return &ctx->connection;
1402 format_quic_ctx (u8 * s, va_list * args)
1404 quic_ctx_t *ctx = va_arg (*args, quic_ctx_t *);
1405 u32 verbose = va_arg (*args, u32);
1409 s = format (s, "[#%d][%s] ", ctx->c_thread_index, "Q");
1411 if (ctx->is_listener)
1413 s = format (s, "%s Listener: ", ctx->c_quic_ctx_id.is_stream ?
1414 "Stream" : "QSession");
1416 s = format (s, "app %d wrk %d", ctx->c_quic_ctx_id.parent_app_id,
1417 ctx->c_quic_ctx_id.parent_app_wrk_id);
1422 s = format (s, "%U:%d->%U:%d", format_ip4_address, &ctx->c_lcl_ip4,
1423 clib_net_to_host_u16 (ctx->c_lcl_port),
1424 format_ip4_address, &ctx->c_rmt_ip4,
1425 clib_net_to_host_u16 (ctx->c_rmt_port));
1427 s = format (s, "%U:%d->%U:%d", format_ip6_address, &ctx->c_lcl_ip6,
1428 clib_net_to_host_u16 (ctx->c_lcl_port),
1429 format_ip6_address, &ctx->c_rmt_ip6,
1430 clib_net_to_host_u16 (ctx->c_rmt_port));
1436 format_quic_connection (u8 * s, va_list * args)
1438 u32 qc_index = va_arg (*args, u32);
1439 u32 thread_index = va_arg (*args, u32);
1440 u32 verbose = va_arg (*args, u32);
1441 quic_ctx_t *ctx = quic_ctx_get (qc_index, thread_index);
1443 s = format (s, "%-50U", format_quic_ctx, ctx, verbose);
1448 format_quic_half_open (u8 * s, va_list * args)
1450 u32 qc_index = va_arg (*args, u32);
1451 quic_ctx_t *ctx = quic_ctx_get (qc_index, vlib_get_thread_index ());
1452 s = format (s, "[QUIC] half-open app %u", ctx->c_quic_ctx_id.parent_app_id);
1458 format_quic_listener (u8 * s, va_list * args)
1460 u32 tci = va_arg (*args, u32);
1461 u32 verbose = va_arg (*args, u32);
1462 quic_ctx_t *ctx = quic_ctx_get (tci, vlib_get_thread_index ());
1465 ASSERT (ctx->is_listener);
1466 s = format (s, "%-50U", format_quic_ctx, ctx, verbose);
1471 /*****************************************************************************
1472 * END TRANSPORT PROTO FUNCTIONS
1474 * START SESSION CALLBACKS
1475 * Called from UDP layer
1476 *****************************************************************************/
1479 quic_build_sockaddr (struct sockaddr *sa, socklen_t * salen,
1480 ip46_address_t * addr, u16 port, u8 is_ip4)
1484 struct sockaddr_in *sa4 = (struct sockaddr_in *) sa;
1485 sa4->sin_family = AF_INET;
1486 sa4->sin_port = port;
1487 sa4->sin_addr.s_addr = addr->ip4.as_u32;
1488 *salen = sizeof (struct sockaddr_in);
1492 struct sockaddr_in6 *sa6 = (struct sockaddr_in6 *) sa;
1493 sa6->sin6_family = AF_INET6;
1494 sa6->sin6_port = port;
1495 clib_memcpy (&sa6->sin6_addr, &addr->ip6, 16);
1496 *salen = sizeof (struct sockaddr_in6);
1501 quic_on_client_connected (quic_ctx_t * ctx)
1503 session_t *quic_session;
1504 app_worker_t *app_wrk;
1505 u32 ctx_id = ctx->c_c_index;
1506 u32 thread_index = ctx->c_thread_index;
1508 app_wrk = app_worker_get_if_valid (ctx->c_quic_ctx_id.parent_app_wrk_id);
1511 quic_disconnect_transport (ctx);
1515 quic_session = session_alloc (thread_index);
1517 QUIC_DBG (2, "Allocated quic_session, id %u, thread %u",
1518 quic_session->session_index, quic_session->thread_index);
1519 ctx->c_s_index = quic_session->session_index;
1520 quic_session->app_wrk_index = ctx->c_quic_ctx_id.parent_app_wrk_id;
1521 quic_session->connection_index = ctx->c_c_index;
1522 quic_session->listener_handle = SESSION_INVALID_HANDLE;
1523 quic_session->session_type =
1524 session_type_from_proto_and_ip (TRANSPORT_PROTO_QUIC,
1525 ctx->c_quic_ctx_id.udp_is_ip4);
1527 if (app_worker_init_connected (app_wrk, quic_session))
1529 QUIC_DBG (1, "failed to app_worker_init_connected");
1530 quic_proto_on_close (ctx_id, thread_index);
1531 return app_worker_connect_notify (app_wrk, NULL, ctx->client_opaque);
1534 quic_session->session_state = SESSION_STATE_CONNECTING;
1535 if (app_worker_connect_notify (app_wrk, quic_session, ctx->client_opaque))
1537 QUIC_DBG (1, "failed to notify app");
1538 quic_proto_on_close (ctx_id, thread_index);
1542 /* If the app opens a stream in its callback it may invalidate ctx */
1543 ctx = quic_ctx_get (ctx_id, thread_index);
1544 quic_session->session_state = SESSION_STATE_LISTENING;
1545 session_lookup_add_connection (&ctx->connection,
1546 session_handle (quic_session));
1552 quic_session_connected_callback (u32 quic_app_index, u32 ctx_index,
1553 session_t * udp_session, u8 is_fail)
1555 QUIC_DBG (2, "QSession is now connected (id %u)",
1556 udp_session->session_index);
1557 /* This should always be called before quic_connect returns since UDP always
1558 * connects instantly. */
1559 clib_bihash_kv_16_8_t kv;
1560 struct sockaddr_in6 sa6;
1561 struct sockaddr *sa = (struct sockaddr *) &sa6;
1563 transport_connection_t *tc;
1564 app_worker_t *app_wrk;
1565 quicly_conn_t *conn;
1568 u32 thread_index = vlib_get_thread_index ();
1571 ctx = quic_ctx_get (ctx_index, thread_index);
1578 app_worker_get_if_valid (ctx->c_quic_ctx_id.parent_app_wrk_id);
1581 api_context = ctx->c_s_index;
1582 app_worker_connect_notify (app_wrk, 0, api_context);
1587 app_wrk = app_worker_get_if_valid (ctx->c_quic_ctx_id.parent_app_wrk_id);
1590 QUIC_DBG (1, "Appwrk not found");
1593 app = application_get (app_wrk->app_index);
1595 ctx->c_thread_index = thread_index;
1596 ctx->c_c_index = ctx_index;
1598 QUIC_DBG (2, "Quic connect returned %u. New ctx [%u]%x",
1599 is_fail, thread_index, (ctx) ? ctx_index : ~0);
1601 ctx->c_quic_ctx_id.udp_session_handle = session_handle (udp_session);
1602 udp_session->opaque = ctx->c_quic_ctx_id.parent_app_id;
1603 udp_session->session_state = SESSION_STATE_READY;
1605 /* Init QUIC lib connection
1606 * Generate required sockaddr & salen */
1607 tc = session_get_transport (udp_session);
1608 quic_build_sockaddr (sa, &salen, &tc->rmt_ip, tc->rmt_port, tc->is_ip4);
1611 quicly_connect (&ctx->c_quic_ctx_id.conn,
1612 (quicly_context_t *) app->quicly_ctx,
1613 (char *) ctx->srv_hostname, sa, salen,
1614 &quic_main.next_cid, &quic_main.hs_properties, NULL);
1615 ++quic_main.next_cid.master_id;
1616 /* Save context handle in quicly connection */
1617 quic_store_conn_ctx (ctx->c_quic_ctx_id.conn, ctx);
1620 /* Register connection in connections map */
1621 conn = ctx->c_quic_ctx_id.conn;
1622 quic_make_connection_key (&kv, quicly_get_master_id (conn));
1623 kv.value = ((u64) thread_index) << 32 | (u64) ctx_index;
1624 QUIC_DBG (2, "Registering conn with id %lu %lu", kv.key[0], kv.key[1]);
1625 clib_bihash_add_del_16_8 (&quic_main.connection_hash, &kv, 1 /* is_add */ );
1627 quic_send_packets (ctx);
1629 /* UDP stack quirk? preemptively transfer connection if that happens */
1630 if (udp_session->thread_index != thread_index)
1631 quic_transfer_connection (ctx_index, udp_session->thread_index);
1637 quic_receive_connection (void *arg)
1639 u32 new_ctx_id, thread_index = vlib_get_thread_index ();
1640 quic_ctx_t *temp_ctx, *new_ctx;
1641 clib_bihash_kv_16_8_t kv;
1642 quicly_conn_t *conn;
1645 new_ctx_id = quic_ctx_alloc (thread_index);
1646 new_ctx = quic_ctx_get (new_ctx_id, thread_index);
1648 QUIC_DBG (2, "Received conn %u (now %u)", temp_ctx->c_thread_index,
1652 memcpy (new_ctx, temp_ctx, sizeof (quic_ctx_t));
1655 new_ctx->c_thread_index = thread_index;
1656 new_ctx->c_c_index = new_ctx_id;
1658 conn = new_ctx->c_quic_ctx_id.conn;
1659 quic_store_conn_ctx (conn, new_ctx);
1660 quic_make_connection_key (&kv, quicly_get_master_id (conn));
1661 kv.value = ((u64) thread_index) << 32 | (u64) new_ctx_id;
1662 QUIC_DBG (2, "Registering conn with id %lu %lu", kv.key[0], kv.key[1]);
1663 clib_bihash_add_del_16_8 (&quic_main.connection_hash, &kv, 1 /* is_add */ );
1664 new_ctx->timer_handle = QUIC_TIMER_HANDLE_INVALID;
1665 quic_update_timer (new_ctx);
1667 /* Trigger read on this connection ? */
1671 quic_transfer_connection (u32 ctx_index, u32 dest_thread)
1673 tw_timer_wheel_1t_3w_1024sl_ov_t *tw;
1674 quic_ctx_t *ctx, *temp_ctx;
1675 clib_bihash_kv_16_8_t kv;
1676 quicly_conn_t *conn;
1677 u32 thread_index = vlib_get_thread_index ();
1679 QUIC_DBG (2, "Transferring conn %u to thread %u", ctx_index, dest_thread);
1681 temp_ctx = malloc (sizeof (quic_ctx_t));
1683 ctx = quic_ctx_get (ctx_index, thread_index);
1685 memcpy (temp_ctx, ctx, sizeof (quic_ctx_t));
1687 /* Remove from lookup hash, timer wheel and thread-local pool */
1688 conn = ctx->c_quic_ctx_id.conn;
1689 quic_make_connection_key (&kv, quicly_get_master_id (conn));
1690 clib_bihash_add_del_16_8 (&quic_main.connection_hash, &kv, 0 /* is_add */ );
1691 if (ctx->timer_handle != QUIC_TIMER_HANDLE_INVALID)
1693 tw = &quic_main.wrk_ctx[thread_index].timer_wheel;
1694 tw_timer_stop_1t_3w_1024sl_ov (tw, ctx->timer_handle);
1696 quic_ctx_free (ctx);
1698 /* Send connection to destination thread */
1699 session_send_rpc_evt_to_thread (dest_thread, quic_receive_connection,
1704 quic_transfer_connection_rpc (void *arg)
1706 u64 arg_int = (u64) arg;
1707 u32 ctx_index, dest_thread;
1709 ctx_index = (u32) (arg_int >> 32);
1710 dest_thread = (u32) (arg_int & UINT32_MAX);
1711 quic_transfer_connection (ctx_index, dest_thread);
1715 * This assumes that the connection is not yet associated to a session
1716 * So currently it only works on the client side when receiving the first packet
1720 quic_move_connection_to_thread (u32 ctx_index, u32 owner_thread,
1723 QUIC_DBG (2, "Requesting transfer of conn %u from thread %u", ctx_index,
1725 u64 arg = ((u64) ctx_index) << 32 | to_thread;
1726 session_send_rpc_evt_to_thread (owner_thread, quic_transfer_connection_rpc,
1731 quic_session_disconnect_callback (session_t * s)
1733 clib_warning ("UDP session disconnected???");
1737 quic_session_reset_callback (session_t * s)
1739 clib_warning ("UDP session reset???");
1743 quic_session_accepted_callback (session_t * udp_session)
1745 /* New UDP connection, try to accept it */
1746 QUIC_DBG (2, "UDP session accepted");
1749 quic_ctx_t *ctx, *lctx;
1750 session_t *udp_listen_session;
1751 u32 thread_index = vlib_get_thread_index ();
1753 udp_listen_session =
1754 listen_session_get_from_handle (udp_session->listener_handle);
1756 ctx_index = quic_ctx_alloc (thread_index);
1757 ctx = quic_ctx_get (ctx_index, thread_index);
1758 ctx->c_thread_index = udp_session->thread_index;
1759 ctx->c_c_index = ctx_index;
1760 ctx->c_s_index = QUIC_SESSION_INVALID;
1761 ctx->c_quic_ctx_id.udp_session_handle = session_handle (udp_session);
1762 ctx->c_quic_ctx_id.listener_ctx_id = udp_listen_session->opaque;
1763 lctx = quic_ctx_get (udp_listen_session->opaque,
1764 udp_listen_session->thread_index);
1765 ctx->c_quic_ctx_id.udp_is_ip4 = lctx->c_quic_ctx_id.udp_is_ip4;
1766 ctx->c_quic_ctx_id.parent_app_id = lctx->c_quic_ctx_id.parent_app_id;
1767 ctx->c_quic_ctx_id.parent_app_wrk_id =
1768 lctx->c_quic_ctx_id.parent_app_wrk_id;
1769 ctx->timer_handle = QUIC_TIMER_HANDLE_INVALID;
1770 ctx->conn_state = QUIC_CONN_STATE_OPENED;
1772 udp_session->opaque = ctx->c_quic_ctx_id.parent_app_id;
1774 /* Put this ctx in the "opening" pool */
1775 pool_get (quic_main.wrk_ctx[ctx->c_thread_index].opening_ctx_pool,
1777 *pool_index = ctx_index;
1779 /* TODO timeout to delete these if they never connect */
1784 quic_add_segment_callback (u32 client_index, u64 seg_handle)
1786 QUIC_DBG (2, "Called quic_add_segment_callback");
1787 QUIC_DBG (2, "NOT IMPLEMENTED");
1788 /* No-op for builtin */
1793 quic_del_segment_callback (u32 client_index, u64 seg_handle)
1795 QUIC_DBG (2, "Called quic_del_segment_callback");
1796 QUIC_DBG (2, "NOT IMPLEMENTED");
1797 /* No-op for builtin */
1802 quic_custom_tx_callback (void *s)
1804 session_t *stream_session = (session_t *) s;
1805 quicly_stream_t *stream;
1809 svm_fifo_unset_event (stream_session->tx_fifo);
1811 (stream_session->session_state >= SESSION_STATE_TRANSPORT_CLOSING))
1814 quic_ctx_get (stream_session->connection_index,
1815 stream_session->thread_index);
1816 if (PREDICT_FALSE (!ctx->c_quic_ctx_id.is_stream))
1818 goto tx_end; /* Most probably a reschedule */
1821 stream = ctx->c_quic_ctx_id.stream;
1822 if (!quicly_sendstate_is_open (&stream->sendstate))
1824 QUIC_DBG (1, "Warning: tried to send on closed stream");
1828 if ((rv = quicly_stream_sync_sendbuf (stream, 1)) != 0)
1832 quic_send_packets (ctx);
1838 * Returns 0 if a matching connection is found and is on the right thread.
1839 * If a connection is found, even on the wrong thread, ctx_thread and ctx_index
1843 quic_find_packet_ctx (u32 * ctx_thread, u32 * ctx_index,
1844 struct sockaddr *sa, socklen_t salen,
1845 quicly_decoded_packet_t * packet,
1846 u32 caller_thread_index)
1849 quicly_conn_t *conn_;
1850 clib_bihash_kv_16_8_t kv;
1851 clib_bihash_16_8_t *h;
1853 h = &quic_main.connection_hash;
1854 quic_make_connection_key (&kv, &packet->cid.dest.plaintext);
1855 QUIC_DBG (3, "Searching conn with id %lu %lu", kv.key[0], kv.key[1]);
1857 if (clib_bihash_search_16_8 (h, &kv, &kv) == 0)
1859 u32 index = kv.value & UINT32_MAX;
1860 u8 thread_id = kv.value >> 32;
1861 /* Check if this connection belongs to this thread, otherwise
1862 * ask for it to be moved */
1863 if (thread_id != caller_thread_index)
1865 QUIC_DBG (2, "Connection is on wrong thread");
1866 /* Cannot make full check with quicly_is_destination... */
1868 *ctx_thread = thread_id;
1871 ctx_ = quic_ctx_get (index, vlib_get_thread_index ());
1872 conn_ = ctx_->c_quic_ctx_id.conn;
1873 if (conn_ && quicly_is_destination (conn_, sa, salen, packet))
1875 QUIC_DBG (3, "Connection found");
1877 *ctx_thread = thread_id;
1881 QUIC_DBG (3, "connection not found");
1886 quic_receive (quic_ctx_t * ctx, quicly_conn_t * conn,
1887 quicly_decoded_packet_t packet)
1890 u32 ctx_id = ctx->c_c_index;
1891 u32 thread_index = ctx->c_thread_index;
1892 /* TODO : QUICLY_ERROR_PACKET_IGNORED sould be handled */
1893 rv = quicly_receive (conn, &packet);
1896 QUIC_DBG (2, "Quicly receive ignored packet code : %u", rv);
1899 /* ctx pointer may change if a new stream is opened */
1900 ctx = quic_ctx_get (ctx_id, thread_index);
1901 /* Conn may be set to null if the connection is terminated */
1902 if (ctx->c_quic_ctx_id.conn && ctx->conn_state == QUIC_CONN_STATE_HANDSHAKE)
1904 if (quicly_connection_is_ready (conn))
1906 ctx->conn_state = QUIC_CONN_STATE_READY;
1907 if (quicly_is_client (conn))
1909 quic_on_client_connected (ctx);
1910 ctx = quic_ctx_get (ctx_id, thread_index);
1914 return quic_send_packets (ctx);
1918 quic_create_quic_session (quic_ctx_t * ctx)
1920 session_t *quic_session;
1921 app_worker_t *app_wrk;
1925 quic_session = session_alloc (ctx->c_thread_index);
1926 QUIC_DBG (2, "Allocated quic_session, id %u, thread %u ctx %u",
1927 quic_session->session_index, quic_session->thread_index,
1929 quic_session->session_state = SESSION_STATE_LISTENING;
1930 ctx->c_s_index = quic_session->session_index;
1932 lctx = quic_ctx_get (ctx->c_quic_ctx_id.listener_ctx_id, 0);
1934 quic_session->app_wrk_index = lctx->c_quic_ctx_id.parent_app_wrk_id;
1935 quic_session->connection_index = ctx->c_c_index;
1936 quic_session->session_type =
1937 session_type_from_proto_and_ip (TRANSPORT_PROTO_QUIC,
1938 ctx->c_quic_ctx_id.udp_is_ip4);
1939 quic_session->listener_handle = lctx->c_s_index;
1941 /* TODO: don't alloc fifos when we don't transfer data on this session
1942 * but we still need fifos for the events? */
1943 if ((rv = app_worker_init_accepted (quic_session)))
1945 QUIC_DBG (1, "failed to allocate fifos");
1946 session_free (quic_session);
1949 session_lookup_add_connection (&ctx->connection,
1950 session_handle (quic_session));
1951 app_wrk = app_worker_get (quic_session->app_wrk_index);
1952 rv = app_worker_accept_notify (app_wrk, quic_session);
1955 QUIC_DBG (1, "failed to notify accept worker app");
1962 quic_create_connection (quicly_context_t * quicly_ctx,
1963 u64 udp_session_handle, u32 ctx_index,
1964 struct sockaddr *sa,
1965 socklen_t salen, quicly_decoded_packet_t packet)
1967 clib_bihash_kv_16_8_t kv;
1969 quicly_conn_t *conn;
1970 u32 thread_index = vlib_get_thread_index ();
1973 /* new connection, accept and create context if packet is valid
1974 * TODO: check if socket is actually listening? */
1975 if ((rv = quicly_accept (&conn, quicly_ctx, sa, salen,
1976 &packet, ptls_iovec_init (NULL, 0),
1977 &quic_main.next_cid, NULL)))
1979 /* Invalid packet, pass */
1980 assert (conn == NULL);
1981 QUIC_DBG (1, "Accept failed with %d", rv);
1982 /* TODO: cleanup created quic ctx and UDP session */
1985 assert (conn != NULL);
1987 ++quic_main.next_cid.master_id;
1988 ctx = quic_ctx_get (ctx_index, thread_index);
1989 /* Save ctx handle in quicly connection */
1990 quic_store_conn_ctx (conn, ctx);
1991 ctx->c_quic_ctx_id.conn = conn;
1992 ctx->conn_state = QUIC_CONN_STATE_HANDSHAKE;
1994 quic_create_quic_session (ctx);
1996 /* Register connection in connections map */
1997 quic_make_connection_key (&kv, quicly_get_master_id (conn));
1998 kv.value = ((u64) thread_index) << 32 | (u64) ctx_index;
1999 clib_bihash_add_del_16_8 (&quic_main.connection_hash, &kv, 1 /* is_add */ );
2000 QUIC_DBG (2, "Registering conn with id %lu %lu", kv.key[0], kv.key[1]);
2002 return quic_send_packets (ctx);
2006 quic_reset_connection (quicly_context_t * quicly_ctx, u64 udp_session_handle,
2007 struct sockaddr *sa, socklen_t salen,
2008 quicly_decoded_packet_t packet)
2010 /* short header packet; potentially a dead connection. No need to check the
2011 * length of the incoming packet, because loop is prevented by authenticating
2012 * the CID (by checking node_id and thread_id). If the peer is also sending a
2013 * reset, then the next CID is highly likely to contain a non-authenticating
2015 QUIC_DBG (2, "Sending stateless reset");
2016 quicly_datagram_t *dgram;
2017 session_t *udp_session;
2018 if (packet.cid.dest.plaintext.node_id == 0
2019 && packet.cid.dest.plaintext.thread_id == 0)
2021 dgram = quicly_send_stateless_reset (quicly_ctx, sa, salen,
2022 &packet.cid.dest.plaintext);
2025 udp_session = session_get_from_handle (udp_session_handle);
2026 return quic_send_datagram (udp_session, dgram); /* TODO : set event on fifo */
2032 quic_app_rx_callback (session_t * udp_session)
2034 /* Read data from UDP rx_fifo and pass it to the quicly conn. */
2035 quicly_decoded_packet_t packet;
2036 session_dgram_hdr_t ph;
2038 quic_ctx_t *ctx = NULL;
2041 struct sockaddr_in6 sa6;
2042 struct sockaddr *sa = (struct sockaddr *) &sa6;
2044 u32 max_deq, len, full_len, ctx_index = UINT32_MAX, ctx_thread =
2048 u32 *opening_ctx_pool, *ctx_index_ptr;
2049 u32 app_index = udp_session->opaque;
2050 u64 udp_session_handle = session_handle (udp_session);
2052 u32 thread_index = vlib_get_thread_index ();
2054 app = application_get_if_valid (app_index);
2057 QUIC_DBG (1, "Got RX on detached app");
2058 /* TODO: close this session, cleanup state? */
2064 udp_session = session_get_from_handle (udp_session_handle); /* session alloc might have happened */
2065 f = udp_session->rx_fifo;
2066 svm_fifo_unset_event (f);
2067 max_deq = svm_fifo_max_dequeue (f);
2068 if (max_deq < sizeof (session_dgram_hdr_t))
2071 ret = svm_fifo_peek (f, 0, SESSION_CONN_HDR_LEN, (u8 *) & ph);
2072 if (ret != SESSION_CONN_HDR_LEN)
2074 QUIC_DBG (1, "Not enough data for header in RX");
2077 if (ph.data_length < ph.data_offset)
2079 QUIC_DBG (1, "Not enough data vs offset in RX");
2082 len = ph.data_length - ph.data_offset;
2083 full_len = ph.data_length + ph.data_offset + SESSION_CONN_HDR_LEN;
2084 if (full_len > max_deq)
2086 QUIC_DBG (1, "Not enough data in fifo RX");
2090 /* Quicly can read len bytes from the fifo at offset:
2091 * ph.data_offset + SESSION_CONN_HDR_LEN */
2092 data = malloc (ph.data_length);
2094 svm_fifo_peek (f, ph.data_offset + SESSION_CONN_HDR_LEN,
2095 ph.data_length, data);
2096 if (ret != ph.data_length)
2098 QUIC_DBG (1, "Not enough data peeked in RX");
2104 quicly_decode_packet ((quicly_context_t *) app->quicly_ctx, &packet,
2108 quic_build_sockaddr (sa, &salen, &ph.rmt_ip, ph.rmt_port, ph.is_ip4);
2110 quicly_decode_packet ((quicly_context_t *) app->quicly_ctx, &packet,
2113 if (plen != SIZE_MAX)
2116 err = quic_find_packet_ctx (&ctx_thread, &ctx_index, sa, salen,
2117 &packet, thread_index);
2120 ctx = quic_ctx_get (ctx_index, thread_index);
2121 quic_receive (ctx, ctx->c_quic_ctx_id.conn, packet);
2123 else if (ctx_thread != UINT32_MAX)
2125 /* Connection found but on wrong thread, ask move */
2126 quic_move_connection_to_thread (ctx_index, ctx_thread,
2129 else if ((packet.octets.base[0] & QUICLY_PACKET_TYPE_BITMASK) ==
2130 QUICLY_PACKET_TYPE_INITIAL)
2132 /* Try to find matching "opening" ctx */
2134 quic_main.wrk_ctx[thread_index].opening_ctx_pool;
2137 pool_foreach (ctx_index_ptr, opening_ctx_pool,
2139 ctx = quic_ctx_get (*ctx_index_ptr, thread_index);
2140 if (ctx->c_quic_ctx_id.udp_session_handle == udp_session_handle)
2142 /* Right ctx found, create conn & remove from pool */
2143 quic_create_connection ((quicly_context_t *) app->quicly_ctx,
2144 udp_session_handle, *ctx_index_ptr,
2146 pool_put (opening_ctx_pool, ctx_index_ptr);
2147 goto ctx_search_done;
2155 quic_reset_connection ((quicly_context_t *) app->quicly_ctx,
2156 udp_session_handle, sa, salen, packet);
2160 svm_fifo_dequeue_drop (f,
2161 ph.data_length + ph.data_offset +
2162 SESSION_CONN_HDR_LEN);
2170 quic_common_get_transport_endpoint (quic_ctx_t * ctx,
2171 transport_endpoint_t * tep, u8 is_lcl)
2173 session_t *udp_session;
2174 if (ctx->c_quic_ctx_id.is_stream)
2176 tep->is_ip4 = 255; /* well this is ugly */
2181 session_get_from_handle (ctx->c_quic_ctx_id.udp_session_handle);
2182 session_get_endpoint (udp_session, tep, is_lcl);
2187 quic_get_transport_listener_endpoint (u32 listener_index,
2188 transport_endpoint_t * tep, u8 is_lcl)
2191 app_listener_t *app_listener;
2192 session_t *udp_listen_session;
2193 ctx = quic_ctx_get (listener_index, vlib_get_thread_index ());
2194 if (ctx->is_listener)
2197 app_listener_get_w_handle (ctx->c_quic_ctx_id.udp_session_handle);
2198 udp_listen_session = app_listener_get_session (app_listener);
2199 return session_get_endpoint (udp_listen_session, tep, is_lcl);
2201 quic_common_get_transport_endpoint (ctx, tep, is_lcl);
2205 quic_get_transport_endpoint (u32 ctx_index, u32 thread_index,
2206 transport_endpoint_t * tep, u8 is_lcl)
2209 ctx = quic_ctx_get (ctx_index, thread_index);
2210 quic_common_get_transport_endpoint (ctx, tep, is_lcl);
2213 /*****************************************************************************
2214 * END TRANSPORT PROTO FUNCTIONS
2215 *****************************************************************************/
2218 static session_cb_vft_t quic_app_cb_vft = {
2219 .session_accept_callback = quic_session_accepted_callback,
2220 .session_disconnect_callback = quic_session_disconnect_callback,
2221 .session_connected_callback = quic_session_connected_callback,
2222 .session_reset_callback = quic_session_reset_callback,
2223 .add_segment_callback = quic_add_segment_callback,
2224 .del_segment_callback = quic_del_segment_callback,
2225 .builtin_app_rx_callback = quic_app_rx_callback,
2228 static const transport_proto_vft_t quic_proto = {
2229 .connect = quic_connect,
2230 .close = quic_proto_on_close,
2231 .start_listen = quic_start_listen,
2232 .stop_listen = quic_stop_listen,
2233 .get_connection = quic_connection_get,
2234 .get_listener = quic_listener_get,
2235 .update_time = quic_update_time,
2236 .custom_tx = quic_custom_tx_callback,
2237 .tx_type = TRANSPORT_TX_INTERNAL,
2238 .service_type = TRANSPORT_SERVICE_APP,
2239 .format_connection = format_quic_connection,
2240 .format_half_open = format_quic_half_open,
2241 .format_listener = format_quic_listener,
2242 .get_transport_endpoint = quic_get_transport_endpoint,
2243 .get_transport_listener_endpoint = quic_get_transport_listener_endpoint,
2247 static clib_error_t *
2248 quic_init (vlib_main_t * vm)
2250 u32 add_segment_size = (4096ULL << 20) - 1, segment_size = 512 << 20;
2251 vlib_thread_main_t *vtm = vlib_get_thread_main ();
2252 tw_timer_wheel_1t_3w_1024sl_ov_t *tw;
2253 vnet_app_attach_args_t _a, *a = &_a;
2254 u64 options[APP_OPTIONS_N_OPTIONS];
2255 quic_main_t *qm = &quic_main;
2256 u32 fifo_size = QUIC_FIFO_SIZE;
2259 num_threads = 1 /* main thread */ + vtm->n_threads;
2261 memset (a, 0, sizeof (*a));
2262 memset (options, 0, sizeof (options));
2264 a->session_cb_vft = &quic_app_cb_vft;
2265 a->api_client_index = APP_INVALID_INDEX;
2266 a->options = options;
2267 a->name = format (0, "quic");
2268 a->options[APP_OPTIONS_SEGMENT_SIZE] = segment_size;
2269 a->options[APP_OPTIONS_ADD_SEGMENT_SIZE] = add_segment_size;
2270 a->options[APP_OPTIONS_RX_FIFO_SIZE] = fifo_size;
2271 a->options[APP_OPTIONS_TX_FIFO_SIZE] = fifo_size;
2272 a->options[APP_OPTIONS_FLAGS] = APP_OPTIONS_FLAGS_IS_BUILTIN;
2273 a->options[APP_OPTIONS_FLAGS] |= APP_OPTIONS_FLAGS_USE_GLOBAL_SCOPE;
2274 a->options[APP_OPTIONS_FLAGS] |= APP_OPTIONS_FLAGS_IS_TRANSPORT_APP;
2276 if (vnet_application_attach (a))
2278 clib_warning ("failed to attach quic app");
2279 return clib_error_return (0, "failed to attach quic app");
2282 vec_validate (qm->ctx_pool, num_threads - 1);
2283 vec_validate (qm->wrk_ctx, num_threads - 1);
2284 /* Timer wheels, one per thread. */
2285 for (i = 0; i < num_threads; i++)
2287 tw = &qm->wrk_ctx[i].timer_wheel;
2288 tw_timer_wheel_init_1t_3w_1024sl_ov (tw, quic_expired_timers_dispatch,
2289 1e-3 /* timer period 1ms */ , ~0);
2290 tw->last_run_time = vlib_time_now (vlib_get_main ());
2293 clib_bihash_init_16_8 (&qm->connection_hash, "quic connections", 1024,
2296 if (!qm->ca_cert_path)
2297 qm->ca_cert_path = QUIC_DEFAULT_CA_CERT_PATH;
2299 qm->app_index = a->app_index;
2301 qm->tstamp_ticks_per_clock = vm->clib_time.seconds_per_clock
2302 / QUIC_TSTAMP_RESOLUTION;
2304 transport_register_protocol (TRANSPORT_PROTO_QUIC, &quic_proto,
2305 FIB_PROTOCOL_IP4, ~0);
2306 transport_register_protocol (TRANSPORT_PROTO_QUIC, &quic_proto,
2307 FIB_PROTOCOL_IP6, ~0);
2313 VLIB_INIT_FUNCTION (quic_init);
2316 VLIB_PLUGIN_REGISTER () =
2318 .version = VPP_BUILD_VER,
2319 .description = "Quic transport protocol",
2324 * fd.io coding-style-patch-verification: ON
2327 * eval: (c-set-style "gnu")