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_disconnect (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
65 quic_format_err (u64 code)
69 case QUIC_ERROR_FULL_FIFO:
71 case QUICLY_ERROR_PACKET_IGNORED:
72 return "QUICLY_ERROR_PACKET_IGNORED";
73 case QUICLY_ERROR_SENDBUF_FULL:
74 return "QUICLY_ERROR_SENDBUF_FULL";
75 case QUICLY_ERROR_FREE_CONNECTION:
76 return "no open stream on connection";
77 case QUICLY_ERROR_RECEIVED_STATELESS_RESET:
78 return "QUICLY_ERROR_RECEIVED_STATELESS_RESET";
79 case QUICLY_TRANSPORT_ERROR_NONE:
80 return "QUICLY_TRANSPORT_ERROR_NONE";
81 case QUICLY_TRANSPORT_ERROR_INTERNAL:
82 return "QUICLY_TRANSPORT_ERROR_INTERNAL";
83 case QUICLY_TRANSPORT_ERROR_SERVER_BUSY:
84 return "QUICLY_TRANSPORT_ERROR_SERVER_BUSY";
85 case QUICLY_TRANSPORT_ERROR_FLOW_CONTROL:
86 return "QUICLY_TRANSPORT_ERROR_FLOW_CONTROL";
87 case QUICLY_TRANSPORT_ERROR_STREAM_ID:
88 return "QUICLY_TRANSPORT_ERROR_STREAM_ID";
89 case QUICLY_TRANSPORT_ERROR_STREAM_STATE:
90 return "QUICLY_TRANSPORT_ERROR_STREAM_STATE";
91 case QUICLY_TRANSPORT_ERROR_FINAL_OFFSET:
92 return "QUICLY_TRANSPORT_ERROR_FINAL_OFFSET";
93 case QUICLY_TRANSPORT_ERROR_FRAME_ENCODING:
94 return "QUICLY_TRANSPORT_ERROR_FRAME_ENCODING";
95 case QUICLY_TRANSPORT_ERROR_TRANSPORT_PARAMETER:
96 return "QUICLY_TRANSPORT_ERROR_TRANSPORT_PARAMETER";
97 case QUICLY_TRANSPORT_ERROR_VERSION_NEGOTIATION:
98 return "QUICLY_TRANSPORT_ERROR_VERSION_NEGOTIATION";
99 case QUICLY_TRANSPORT_ERROR_PROTOCOL_VIOLATION:
100 return "QUICLY_TRANSPORT_ERROR_PROTOCOL_VIOLATION";
101 case QUICLY_TRANSPORT_ERROR_INVALID_MIGRATION:
102 return "QUICLY_TRANSPORT_ERROR_INVALID_MIGRATION";
103 case QUICLY_TRANSPORT_ERROR_TLS_ALERT_BASE:
104 return "QUICLY_TRANSPORT_ERROR_TLS_ALERT_BASE";
106 return "unknown error";
111 quic_ctx_alloc (u32 thread_index)
113 quic_main_t *qm = &quic_main;
116 pool_get (qm->ctx_pool[thread_index], ctx);
118 memset (ctx, 0, sizeof (quic_ctx_t));
119 ctx->c_thread_index = thread_index;
120 QUIC_DBG (1, "Allocated quic_ctx %u on thread %u",
121 ctx - qm->ctx_pool[thread_index], thread_index);
122 return ctx - qm->ctx_pool[thread_index];
126 quic_ctx_free (quic_ctx_t * ctx)
128 QUIC_DBG (2, "Free ctx %u", ctx->c_c_index);
129 u32 thread_index = ctx->c_thread_index;
131 memset (ctx, 0xfb, sizeof (*ctx));
132 pool_put (quic_main.ctx_pool[thread_index], ctx);
136 quic_ctx_get (u32 ctx_index, u32 thread_index)
138 return pool_elt_at_index (quic_main.ctx_pool[thread_index], ctx_index);
142 quic_get_conn_ctx (quicly_conn_t * conn)
145 conn_data = (u64) * quicly_get_data (conn);
146 return quic_ctx_get (conn_data & UINT32_MAX, conn_data >> 32);
150 quic_store_conn_ctx (quicly_conn_t * conn, quic_ctx_t * ctx)
152 *quicly_get_data (conn) =
153 (void *) (((u64) ctx->c_thread_index) << 32 | (u64) ctx->c_c_index);
157 quic_disconnect_transport (quic_ctx_t * ctx)
159 QUIC_DBG (2, "Called quic_disconnect_transport");
160 vnet_disconnect_args_t a = {
161 .handle = ctx->c_quic_ctx_id.udp_session_handle,
162 .app_index = quic_main.app_index,
165 if (vnet_disconnect_session (&a))
166 clib_warning ("UDP session disconnect errored");
170 quic_send_datagram (session_t * udp_session, quicly_datagram_t * packet)
172 /* QUIC_DBG (2, "Called quic_send_datagram at %ld", quic_get_time (NULL)); */
174 session_dgram_hdr_t hdr;
177 transport_connection_t *tc;
179 len = packet->data.len;
180 f = udp_session->tx_fifo;
181 tc = session_get_transport (udp_session);
183 max_enqueue = svm_fifo_max_enqueue (f);
184 if (max_enqueue <= sizeof (session_dgram_hdr_t))
186 QUIC_DBG (1, "Not enough space to enqueue header");
187 return QUIC_ERROR_FULL_FIFO;
190 max_enqueue -= sizeof (session_dgram_hdr_t);
192 if (max_enqueue < len)
194 QUIC_DBG (1, "Too much data to send, max_enqueue %u, len %u",
196 return QUIC_ERROR_FULL_FIFO;
199 /* Build packet header for fifo */
200 hdr.data_length = len;
202 hdr.is_ip4 = tc->is_ip4;
203 clib_memcpy (&hdr.lcl_ip, &tc->lcl_ip, sizeof (ip46_address_t));
204 hdr.lcl_port = tc->lcl_port;
206 /* Read dest address from quicly-provided sockaddr */
209 ASSERT (packet->sa.sa_family == AF_INET);
210 struct sockaddr_in *sa4 = (struct sockaddr_in *) &packet->sa;
211 hdr.rmt_port = sa4->sin_port;
212 hdr.rmt_ip.ip4.as_u32 = sa4->sin_addr.s_addr;
216 ASSERT (packet->sa.sa_family == AF_INET6);
217 struct sockaddr_in6 *sa6 = (struct sockaddr_in6 *) &packet->sa;
218 hdr.rmt_port = sa6->sin6_port;
219 clib_memcpy (&hdr.rmt_ip.ip6, &sa6->sin6_addr, 16);
222 ret = svm_fifo_enqueue (f, sizeof (hdr), (u8 *) & hdr);
223 if (ret != sizeof (hdr))
225 QUIC_DBG (1, "Not enough space to enqueue header");
226 return QUIC_ERROR_FULL_FIFO;
228 ret = svm_fifo_enqueue (f, len, packet->data.base);
231 QUIC_DBG (1, "Not enough space to enqueue payload");
232 return QUIC_ERROR_FULL_FIFO;
237 #define QUIC_SEND_PACKET_VEC_SIZE 16
240 quic_sendable_packet_count (session_t * udp_session)
243 max_enqueue = svm_fifo_max_enqueue (udp_session->tx_fifo);
244 return clib_min (max_enqueue /
245 (QUIC_MAX_PACKET_SIZE + sizeof (session_dgram_hdr_t)),
246 QUIC_SEND_PACKET_VEC_SIZE);
250 quic_send_packets (quic_ctx_t * ctx)
252 quicly_datagram_t *packets[QUIC_SEND_PACKET_VEC_SIZE];
253 session_t *udp_session;
255 size_t num_packets, i, max_packets;
256 quicly_context_t *quicly_context;
257 app_worker_t *app_wrk;
261 /* We have sctx, get qctx */
262 if (ctx->c_quic_ctx_id.is_stream)
264 quic_ctx_get (ctx->c_quic_ctx_id.quic_connection_ctx_id,
265 ctx->c_thread_index);
267 ASSERT (!ctx->c_quic_ctx_id.is_stream);
270 session_get_from_handle (ctx->c_quic_ctx_id.udp_session_handle);
271 conn = ctx->c_quic_ctx_id.conn;
276 /* TODO : quicly can assert it can send min_packets up to 2 */
277 if (quic_sendable_packet_count (udp_session) < 2)
280 app_wrk = app_worker_get_if_valid (ctx->c_quic_ctx_id.parent_app_wrk_id);
283 clib_warning ("Tried to send packets on non existing app worker %u",
284 ctx->c_quic_ctx_id.parent_app_wrk_id);
285 quic_connection_closed (ctx->c_c_index, ctx->c_thread_index);
288 app = application_get (app_wrk->app_index);
290 quicly_context = (quicly_context_t *) app->quicly_ctx;
293 max_packets = quic_sendable_packet_count (udp_session);
296 num_packets = max_packets;
297 if ((err = quicly_send (conn, packets, &num_packets)))
300 for (i = 0; i != num_packets; ++i)
302 if ((err = quic_send_datagram (udp_session, packets[i])))
305 quicly_context->packet_allocator->
306 free_packet (quicly_context->packet_allocator, packets[i]);
309 while (num_packets > 0 && num_packets == max_packets);
311 if (svm_fifo_set_event (udp_session->tx_fifo))
312 session_send_io_evt_to_thread (udp_session->tx_fifo, SESSION_IO_EVT_TX);
315 quic_update_timer (ctx);
319 if (err != QUICLY_ERROR_PACKET_IGNORED)
320 clib_warning ("Quic error '%s'.", quic_format_err (err));
321 quic_connection_closed (ctx->c_c_index, ctx->c_thread_index);
325 /*****************************************************************************
326 * START QUICLY CALLBACKS
327 * Called from QUIC lib
328 *****************************************************************************/
331 quic_on_stream_destroy (quicly_stream_t * stream, int err)
333 quic_stream_data_t *stream_data = (quic_stream_data_t *) stream->data;
334 u32 sctx_id = stream_data->ctx_id;
335 session_t *stream_session;
336 quic_ctx_t *sctx = quic_ctx_get (sctx_id, stream_data->thread_index);
337 QUIC_DBG (2, "Stream %ld (ctx %u) destroyed", stream->stream_id, sctx_id);
338 stream_session = session_get (sctx->c_s_index, sctx->c_thread_index);
339 stream_session->session_state = SESSION_STATE_CLOSED;
340 session_transport_delete_notify (&sctx->connection);
341 quic_ctx_free (sctx);
346 quic_on_stop_sending (quicly_stream_t * stream, int error_code)
348 QUIC_DBG (2, "received STOP_SENDING: %d", error_code);
353 quic_on_receive_reset (quicly_stream_t * stream, int error_code)
355 QUIC_DBG (2, "received RESET_STREAM: %d", error_code);
360 get_stream_session_from_stream (quicly_stream_t * stream)
363 quic_stream_data_t *stream_data;
365 stream_data = (quic_stream_data_t *) stream->data;
366 ctx = quic_ctx_get (stream_data->ctx_id, stream_data->thread_index);
367 return session_get (ctx->c_s_index, stream_data->thread_index);
371 quic_on_receive (quicly_stream_t * stream, size_t off, const void *src,
374 QUIC_DBG (3, "received data: %lu bytes, offset %lu", len, off);
377 session_t *stream_session;
378 app_worker_t *app_wrk;
380 quic_stream_data_t *stream_data;
383 stream_data = (quic_stream_data_t *) stream->data;
384 sctx = quic_ctx_get (stream_data->ctx_id, stream_data->thread_index);
385 stream_session = session_get (sctx->c_s_index, stream_data->thread_index);
386 f = stream_session->rx_fifo;
388 max_enq = svm_fifo_max_enqueue_prod (f);
389 QUIC_DBG (3, "Enqueuing %u at off %u in %u space", len, off, max_enq);
390 if (off + len > max_enq)
392 /* TODO : can we find a better solution, listening on RX fifo evts ? */
393 QUIC_DBG (3, "Ingoring packet, RX fifo is full");
394 return QUICLY_ERROR_PACKET_IGNORED;
398 rlen = svm_fifo_enqueue (f, len, (u8 *) src);
399 ASSERT (rlen >= len);
401 quicly_stream_sync_recvbuf (stream, rlen);
402 app_wrk = app_worker_get_if_valid (stream_session->app_wrk_index);
403 if (PREDICT_TRUE (app_wrk != 0))
404 app_worker_lock_and_send_event (app_wrk, stream_session,
409 rlen = svm_fifo_enqueue_with_offset (f, off, len, (u8 *) src);
416 quic_fifo_egress_shift (quicly_stream_t * stream, size_t delta)
418 session_t *stream_session;
421 stream_session = get_stream_session_from_stream (stream);
422 f = stream_session->tx_fifo;
424 ASSERT (svm_fifo_dequeue_drop (f, delta) == delta);
425 quicly_stream_sync_sendbuf (stream, 0);
429 quic_fifo_egress_emit (quicly_stream_t * stream, size_t off, void *dst,
430 size_t * len, int *wrote_all)
432 session_t *stream_session;
434 u32 deq_max, first_deq, max_rd_chunk, rem_offset;
436 stream_session = get_stream_session_from_stream (stream);
437 f = stream_session->tx_fifo;
439 QUIC_DBG (3, "Emitting %u, offset %u", *len, off);
441 deq_max = svm_fifo_max_dequeue_cons (f);
442 ASSERT (off <= deq_max);
443 if (off + *len < deq_max)
449 QUIC_DBG (3, "Wrote ALL");
451 *len = deq_max - off;
454 /* TODO, use something like : return svm_fifo_peek (f, off, *len, dst); */
455 max_rd_chunk = svm_fifo_max_read_chunk (f);
458 if (off < max_rd_chunk)
460 first_deq = clib_min (*len, max_rd_chunk - off);
461 clib_memcpy_fast (dst, svm_fifo_head (f) + off, first_deq);
464 if (max_rd_chunk < off + *len)
466 rem_offset = max_rd_chunk < off ? off - max_rd_chunk : 0;
467 clib_memcpy_fast (dst + first_deq, f->head_chunk->data + rem_offset,
474 static const quicly_stream_callbacks_t quic_stream_callbacks = {
475 .on_destroy = quic_on_stream_destroy,
476 .on_send_shift = quic_fifo_egress_shift,
477 .on_send_emit = quic_fifo_egress_emit,
478 .on_send_stop = quic_on_stop_sending,
479 .on_receive = quic_on_receive,
480 .on_receive_reset = quic_on_receive_reset
484 quic_accept_stream (void *s)
486 quicly_stream_t *stream = (quicly_stream_t *) s;
487 session_t *stream_session, *quic_session;
488 quic_stream_data_t *stream_data;
489 app_worker_t *app_wrk;
490 quic_ctx_t *qctx, *sctx;
494 sctx_id = quic_ctx_alloc (vlib_get_thread_index ());
496 qctx = quic_get_conn_ctx (stream->conn);
498 stream_session = session_alloc (qctx->c_thread_index);
499 QUIC_DBG (2, "Allocated stream_session, id %u, thread %u ctx %u",
500 stream_session->session_index, stream_session->thread_index,
502 sctx = quic_ctx_get (sctx_id, qctx->c_thread_index);
503 sctx->c_quic_ctx_id.parent_app_wrk_id =
504 qctx->c_quic_ctx_id.parent_app_wrk_id;
505 sctx->c_quic_ctx_id.parent_app_id = qctx->c_quic_ctx_id.parent_app_id;
506 sctx->c_quic_ctx_id.quic_connection_ctx_id = qctx->c_c_index;
507 sctx->c_c_index = sctx_id;
508 sctx->c_quic_ctx_id.is_stream = 1;
509 sctx->c_s_index = stream_session->session_index;
510 sctx->c_quic_ctx_id.stream = stream;
512 stream_data = (quic_stream_data_t *) stream->data;
513 stream_data->ctx_id = sctx_id;
514 stream_data->thread_index = sctx->c_thread_index;
516 sctx->c_s_index = stream_session->session_index;
517 stream_session->session_state = SESSION_STATE_CREATED;
518 stream_session->flags |= SESSION_F_QUIC_STREAM;
519 stream_session->app_wrk_index = sctx->c_quic_ctx_id.parent_app_wrk_id;
520 stream_session->connection_index = sctx->c_c_index;
521 stream_session->session_type =
522 session_type_from_proto_and_ip (TRANSPORT_PROTO_QUIC,
523 qctx->c_quic_ctx_id.udp_is_ip4);
524 quic_session = session_get (qctx->c_s_index, qctx->c_thread_index);
525 stream_session->listener_handle = listen_session_get_handle (quic_session);
527 app_wrk = app_worker_get (stream_session->app_wrk_index);
528 if ((rv = app_worker_init_connected (app_wrk, stream_session)))
530 QUIC_DBG (1, "failed to allocate fifos");
531 session_free (stream_session);
532 quicly_reset_stream (stream, 0x30001);
536 rv = app_worker_accept_notify (app_wrk, stream_session);
539 QUIC_DBG (1, "failed to notify accept worker app");
540 session_free_w_fifos (stream_session);
541 quicly_reset_stream (stream, 0x30002);
544 session_lookup_add_connection (&sctx->connection,
545 session_handle (stream_session));
549 quic_on_stream_open (quicly_stream_open_t * self, quicly_stream_t * stream)
551 QUIC_DBG (2, "on_stream_open called");
552 stream->data = malloc (sizeof (quic_stream_data_t));
553 stream->callbacks = &quic_stream_callbacks;
554 /* Notify accept on parent qsession, but only if this is not a locally
555 * initiated stream */
556 if (!quicly_stream_is_self_initiated (stream))
558 quic_accept_stream (stream);
563 static quicly_stream_open_t on_stream_open = { &quic_on_stream_open };
566 quic_on_conn_close (quicly_closed_by_peer_t * self, quicly_conn_t * conn,
567 int code, uint64_t frame_type,
568 const char *reason, size_t reason_len)
570 QUIC_DBG (2, "connection closed, reason: %.*s", reason, reason_len);
571 quic_ctx_t *ctx = quic_get_conn_ctx (conn);
572 session_transport_closing_notify (&ctx->connection);
575 static quicly_closed_by_peer_t on_closed_by_peer = { &quic_on_conn_close };
578 /*****************************************************************************
579 * END QUICLY CALLBACKS
580 *****************************************************************************/
582 /* single-entry session cache */
583 struct st_util_session_cache_t
585 ptls_encrypt_ticket_t super;
591 encrypt_ticket_cb (ptls_encrypt_ticket_t * _self, ptls_t * tls,
592 int is_encrypt, ptls_buffer_t * dst, ptls_iovec_t src)
594 struct st_util_session_cache_t *self = (void *) _self;
600 /* replace the cached entry along with a newly generated session id */
601 free (self->data.base);
602 if ((self->data.base = malloc (src.len)) == NULL)
603 return PTLS_ERROR_NO_MEMORY;
605 ptls_get_context (tls)->random_bytes (self->id, sizeof (self->id));
606 memcpy (self->data.base, src.base, src.len);
607 self->data.len = src.len;
609 /* store the session id in buffer */
610 if ((ret = ptls_buffer_reserve (dst, sizeof (self->id))) != 0)
612 memcpy (dst->base + dst->off, self->id, sizeof (self->id));
613 dst->off += sizeof (self->id);
619 /* check if session id is the one stored in cache */
620 if (src.len != sizeof (self->id))
621 return PTLS_ERROR_SESSION_NOT_FOUND;
622 if (memcmp (self->id, src.base, sizeof (self->id)) != 0)
623 return PTLS_ERROR_SESSION_NOT_FOUND;
625 /* return the cached value */
626 if ((ret = ptls_buffer_reserve (dst, self->data.len)) != 0)
628 memcpy (dst->base + dst->off, self->data.base, self->data.len);
629 dst->off += self->data.len;
636 static struct st_util_session_cache_t sc = {
638 .cb = encrypt_ticket_cb,
642 static ptls_context_t quic_tlsctx = {
643 .random_bytes = ptls_openssl_random_bytes,
644 .get_time = &ptls_get_time,
645 .key_exchanges = ptls_openssl_key_exchanges,
646 .cipher_suites = ptls_openssl_cipher_suites,
652 .on_client_hello = NULL,
653 .emit_certificate = NULL,
654 .sign_certificate = NULL,
655 .verify_certificate = NULL,
656 .ticket_lifetime = 86400,
657 .max_early_data_size = 8192,
658 .hkdf_label_prefix__obsolete = NULL,
659 .require_dhe_on_psk = 1,
660 .encrypt_ticket = &sc.super,
665 ptls_compare_separator_line (const char *line, const char *begin_or_end,
668 int ret = strncmp (line, "-----", 5);
669 size_t text_index = 5;
673 size_t begin_or_end_length = strlen (begin_or_end);
674 ret = strncmp (line + text_index, begin_or_end, begin_or_end_length);
675 text_index += begin_or_end_length;
680 ret = line[text_index] - ' ';
686 size_t label_length = strlen (label);
687 ret = strncmp (line + text_index, label, label_length);
688 text_index += label_length;
693 ret = strncmp (line + text_index, "-----", 5);
700 ptls_get_bio_pem_object (BIO * bio, const char *label, ptls_buffer_t * buf)
702 int ret = PTLS_ERROR_PEM_LABEL_NOT_FOUND;
704 ptls_base64_decode_state_t state;
706 /* Get the label on a line by itself */
707 while (BIO_gets (bio, line, 256))
709 if (ptls_compare_separator_line (line, "BEGIN", label) == 0)
712 ptls_base64_decode_init (&state);
716 /* Get the data in the buffer */
717 while (ret == 0 && BIO_gets (bio, line, 256))
719 if (ptls_compare_separator_line (line, "END", label) == 0)
721 if (state.status == PTLS_BASE64_DECODE_DONE
722 || (state.status == PTLS_BASE64_DECODE_IN_PROGRESS
729 ret = PTLS_ERROR_INCORRECT_BASE64;
735 ret = ptls_base64_decode (line, &state, buf);
743 ptls_load_bio_pem_objects (BIO * bio, const char *label, ptls_iovec_t * list,
744 size_t list_max, size_t * nb_objects)
753 while (count < list_max)
757 ptls_buffer_init (&buf, "", 0);
759 ret = ptls_get_bio_pem_object (bio, label, &buf);
763 if (buf.off > 0 && buf.is_allocated)
765 list[count].base = buf.base;
766 list[count].len = buf.off;
771 ptls_buffer_dispose (&buf);
776 ptls_buffer_dispose (&buf);
782 if (ret == PTLS_ERROR_PEM_LABEL_NOT_FOUND && count > 0)
792 #define PTLS_MAX_CERTS_IN_CONTEXT 16
795 ptls_load_bio_certificates (ptls_context_t * ctx, BIO * bio)
799 ctx->certificates.list =
800 (ptls_iovec_t *) malloc (PTLS_MAX_CERTS_IN_CONTEXT *
801 sizeof (ptls_iovec_t));
803 if (ctx->certificates.list == NULL)
805 ret = PTLS_ERROR_NO_MEMORY;
810 ptls_load_bio_pem_objects (bio, "CERTIFICATE", ctx->certificates.list,
811 PTLS_MAX_CERTS_IN_CONTEXT,
812 &ctx->certificates.count);
819 load_bio_certificate_chain (ptls_context_t * ctx, const char *cert_data)
822 cert_bio = BIO_new_mem_buf (cert_data, -1);
823 if (ptls_load_bio_certificates (ctx, cert_bio) != 0)
826 fprintf (stderr, "failed to load certificate:%s\n", strerror (errno));
833 load_bio_private_key (ptls_context_t * ctx, const char *pk_data)
835 static ptls_openssl_sign_certificate_t sc;
839 key_bio = BIO_new_mem_buf (pk_data, -1);
840 pkey = PEM_read_bio_PrivateKey (key_bio, NULL, NULL, NULL);
845 fprintf (stderr, "failed to read private key from app configuration\n");
849 ptls_openssl_init_sign_certificate (&sc, pkey);
850 EVP_PKEY_free (pkey);
852 ctx->sign_certificate = &sc.super;
856 quic_make_connection_key (clib_bihash_kv_16_8_t * kv,
857 const quicly_cid_plaintext_t * id)
859 kv->key[0] = ((u64) id->master_id) << 32 | (u64) id->thread_id;
860 kv->key[1] = id->node_id;
864 quic_connection_closed (u32 ctx_index, u32 thread_index)
866 /* TODO : free fifos */
867 QUIC_DBG (2, "QUIC connection closed");
868 tw_timer_wheel_1t_3w_1024sl_ov_t *tw;
869 clib_bihash_kv_16_8_t kv;
873 ctx = quic_ctx_get (ctx_index, thread_index);
875 ASSERT (!ctx->c_quic_ctx_id.is_stream);
876 /* TODO if connection is not established, just delete the session? */
879 if (ctx->timer_handle != QUIC_TIMER_HANDLE_INVALID)
881 tw = &quic_main.wrk_ctx[thread_index].timer_wheel;
882 tw_timer_stop_1t_3w_1024sl_ov (tw, ctx->timer_handle);
885 /* Delete the connection from the connection map */
886 conn = ctx->c_quic_ctx_id.conn;
887 quic_make_connection_key (&kv, quicly_get_master_id (conn));
888 QUIC_DBG (2, "Deleting conn with id %lu %lu", kv.key[0], kv.key[1]);
889 clib_bihash_add_del_16_8 (&quic_main.connection_hash, &kv, 0 /* is_add */ );
891 // session_close (session_get_from_handle (ctx->c_quic_ctx_id.udp_session_handle));
892 quic_disconnect_transport (ctx);
893 session_transport_delete_notify (&ctx->connection);
894 /* Do not try to send anything anymore */
895 quicly_free (ctx->c_quic_ctx_id.conn);
896 ctx->c_quic_ctx_id.conn = NULL;
901 allocate_quicly_ctx (application_t * app, u8 is_client)
908 quicly_context_t *quicly_ctx;
909 ptls_iovec_t key_vec;
910 QUIC_DBG (2, "Called allocate_quicly_ctx");
914 QUIC_DBG (1, "Trying to reallocate quicly_ctx");
918 ctx_data = malloc (sizeof (*ctx_data));
919 quicly_ctx = &ctx_data->_;
920 app->quicly_ctx = (u64 *) quicly_ctx;
921 memcpy (quicly_ctx, &quicly_spec_context, sizeof (quicly_context_t));
923 quicly_ctx->max_packet_size = QUIC_MAX_PACKET_SIZE;
924 quicly_ctx->tls = &quic_tlsctx;
925 quicly_ctx->stream_open = &on_stream_open;
926 quicly_ctx->closed_by_peer = &on_closed_by_peer;
927 quicly_ctx->now = &quicly_vpp_now_cb;
929 quicly_amend_ptls_context (quicly_ctx->tls);
931 quicly_ctx->event_log.mask = 0; /* logs */
932 quicly_ctx->event_log.cb = quicly_new_default_event_logger (stderr);
934 quicly_ctx->transport_params.max_data = QUIC_INT_MAX;
935 quicly_ctx->transport_params.max_streams_uni = QUIC_INT_MAX;
936 quicly_ctx->transport_params.max_streams_bidi = QUIC_INT_MAX;
937 quicly_ctx->transport_params.max_stream_data.bidi_local = (QUIC_FIFO_SIZE - 1); /* max_enq is SIZE - 1 */
938 quicly_ctx->transport_params.max_stream_data.bidi_remote = (QUIC_FIFO_SIZE - 1); /* max_enq is SIZE - 1 */
939 quicly_ctx->transport_params.max_stream_data.uni = QUIC_INT_MAX;
941 quicly_ctx->tls->random_bytes (ctx_data->cid_key, 16);
942 ctx_data->cid_key[16] = 0;
943 key_vec = ptls_iovec_init (ctx_data->cid_key, strlen (ctx_data->cid_key));
944 quicly_ctx->cid_encryptor =
945 quicly_new_default_cid_encryptor (&ptls_openssl_bfecb,
946 &ptls_openssl_sha256, key_vec);
947 if (!is_client && app->tls_key != NULL && app->tls_cert != NULL)
949 load_bio_private_key (quicly_ctx->tls, (char *) app->tls_key);
950 load_bio_certificate_chain (quicly_ctx->tls, (char *) app->tls_cert);
955 /*****************************************************************************
956 * BEGIN TIMERS HANDLING
957 *****************************************************************************/
960 quic_get_thread_time (u8 thread_index)
962 return quic_main.wrk_ctx[thread_index].time_now;
966 quic_get_time (quicly_now_t * self)
968 u8 thread_index = vlib_get_thread_index ();
969 return quic_get_thread_time (thread_index);
973 quic_set_time_now (u32 thread_index)
975 vlib_main_t *vlib_main = vlib_get_main ();
976 f64 time = vlib_time_now (vlib_main);
977 quic_main.wrk_ctx[thread_index].time_now = (int64_t) (time * 1000.f);
978 return quic_main.wrk_ctx[thread_index].time_now;
981 /* Transport proto callback */
983 quic_update_time (f64 now, u8 thread_index)
985 tw_timer_wheel_1t_3w_1024sl_ov_t *tw;
987 tw = &quic_main.wrk_ctx[thread_index].timer_wheel;
988 quic_set_time_now (thread_index);
989 tw_timer_expire_timers_1t_3w_1024sl_ov (tw, now);
993 quic_timer_expired (u32 conn_index)
996 QUIC_DBG (4, "Timer expired for conn %u at %ld", conn_index,
997 quic_get_time (NULL));
998 ctx = quic_ctx_get (conn_index, vlib_get_thread_index ());
999 ctx->timer_handle = QUIC_TIMER_HANDLE_INVALID;
1000 quic_send_packets (ctx);
1004 quic_update_timer (quic_ctx_t * ctx)
1006 tw_timer_wheel_1t_3w_1024sl_ov_t *tw;
1007 int64_t next_timeout, next_interval;
1008 session_t *quic_session;
1010 /* This timeout is in ms which is the unit of our timer */
1011 next_timeout = quicly_get_first_timeout (ctx->c_quic_ctx_id.conn);
1012 next_interval = next_timeout - quic_get_time (NULL);
1014 if (next_timeout == 0 || next_interval <= 0)
1016 if (ctx->c_s_index == QUIC_SESSION_INVALID)
1022 quic_session = session_get (ctx->c_s_index, ctx->c_thread_index);
1023 if (svm_fifo_set_event (quic_session->tx_fifo))
1024 session_send_io_evt_to_thread_custom (quic_session,
1025 quic_session->thread_index,
1026 SESSION_IO_EVT_BUILTIN_TX);
1031 tw = &quic_main.wrk_ctx[vlib_get_thread_index ()].timer_wheel;
1033 QUIC_DBG (4, "Timer set to %ld (int %ld) for ctx %u", next_timeout,
1034 next_interval, ctx->c_c_index);
1036 if (ctx->timer_handle == QUIC_TIMER_HANDLE_INVALID)
1038 if (next_timeout == INT64_MAX)
1040 QUIC_DBG (4, "timer for ctx %u already stopped", ctx->c_c_index);
1044 tw_timer_start_1t_3w_1024sl_ov (tw, ctx->c_c_index, 0, next_interval);
1048 if (next_timeout == INT64_MAX)
1050 tw_timer_stop_1t_3w_1024sl_ov (tw, ctx->timer_handle);
1051 ctx->timer_handle = QUIC_TIMER_HANDLE_INVALID;
1052 QUIC_DBG (4, "Stopping timer for ctx %u", ctx->c_c_index);
1055 tw_timer_update_1t_3w_1024sl_ov (tw, ctx->timer_handle,
1062 quic_expired_timers_dispatch (u32 * expired_timers)
1066 for (i = 0; i < vec_len (expired_timers); i++)
1068 quic_timer_expired (expired_timers[i]);
1073 /*****************************************************************************
1074 * END TIMERS HANDLING
1076 * BEGIN TRANSPORT PROTO FUNCTIONS
1077 *****************************************************************************/
1080 quic_connect (transport_endpoint_cfg_t * tep)
1082 QUIC_DBG (2, "Called quic_connect");
1083 session_endpoint_cfg_t *sep;
1084 int connect_stream = 0;
1086 sep = (session_endpoint_cfg_t *) tep;
1090 /* TODO: better logic to detect if this is a stream or a connection request */
1096 return quic_connect_new_stream (sep);
1100 return quic_connect_new_connection (sep);
1105 quic_connect_new_stream (session_endpoint_cfg_t * sep)
1107 uint64_t quic_session_handle;
1108 session_t *quic_session, *stream_session;
1109 quic_stream_data_t *stream_data;
1110 quicly_stream_t *stream;
1111 quicly_conn_t *conn;
1112 app_worker_t *app_wrk;
1113 quic_ctx_t *qctx, *sctx;
1117 /* Find base session to which the user want to attach a stream */
1118 quic_session_handle = sep->transport_opts;
1119 QUIC_DBG (2, "Opening new stream (qsession %u)", sep->transport_opts);
1120 quic_session = session_get_from_handle (quic_session_handle);
1122 if (quic_session->session_type !=
1123 session_type_from_proto_and_ip (TRANSPORT_PROTO_QUIC, sep->is_ip4))
1125 QUIC_DBG (1, "received incompatible session");
1129 app_wrk = app_worker_get_if_valid (quic_session->app_wrk_index);
1132 QUIC_DBG (1, "Invalid app worker :(");
1136 sctx_index = quic_ctx_alloc (quic_session->thread_index); /* Allocate before we get pointers */
1137 sctx = quic_ctx_get (sctx_index, quic_session->thread_index);
1139 quic_ctx_get (quic_session->connection_index, quic_session->thread_index);
1140 if (qctx->c_quic_ctx_id.is_stream)
1142 QUIC_DBG (1, "session is a stream");
1143 quic_ctx_free (sctx);
1147 sctx->c_quic_ctx_id.parent_app_wrk_id =
1148 qctx->c_quic_ctx_id.parent_app_wrk_id;
1149 sctx->c_quic_ctx_id.parent_app_id = qctx->c_quic_ctx_id.parent_app_id;
1150 sctx->c_quic_ctx_id.quic_connection_ctx_id = qctx->c_c_index;
1151 sctx->c_c_index = sctx_index;
1152 sctx->c_quic_ctx_id.is_stream = 1;
1154 conn = qctx->c_quic_ctx_id.conn;
1156 if (!conn || !quicly_connection_is_ready (conn))
1159 if ((rv = quicly_open_stream (conn, &stream, 0 /* uni */ )))
1161 QUIC_DBG (2, "Stream open failed with %d", rv);
1164 sctx->c_quic_ctx_id.stream = stream;
1166 QUIC_DBG (2, "Opened stream %d, creating session", stream->stream_id);
1168 stream_session = session_alloc (qctx->c_thread_index);
1169 QUIC_DBG (2, "Allocated stream_session, id %u, thread %u ctx %u",
1170 stream_session->session_index, stream_session->thread_index,
1172 stream_session->flags |= SESSION_F_QUIC_STREAM;
1173 stream_session->app_wrk_index = app_wrk->wrk_index;
1174 stream_session->connection_index = sctx_index;
1175 stream_session->listener_handle = quic_session_handle;
1176 stream_session->session_type =
1177 session_type_from_proto_and_ip (TRANSPORT_PROTO_QUIC,
1178 qctx->c_quic_ctx_id.udp_is_ip4);
1180 sctx->c_s_index = stream_session->session_index;
1182 if (app_worker_init_connected (app_wrk, stream_session))
1184 QUIC_DBG (1, "failed to app_worker_init_connected");
1185 quicly_reset_stream (stream, 0x30003);
1186 session_free_w_fifos (stream_session);
1187 quic_ctx_free (sctx);
1188 return app_worker_connect_notify (app_wrk, NULL, sep->opaque);
1191 stream_session->session_state = SESSION_STATE_READY;
1192 if (app_worker_connect_notify (app_wrk, stream_session, sep->opaque))
1194 QUIC_DBG (1, "failed to notify app");
1195 quicly_reset_stream (stream, 0x30004);
1196 session_free_w_fifos (stream_session);
1197 quic_ctx_free (sctx);
1200 session_lookup_add_connection (&sctx->connection,
1201 session_handle (stream_session));
1202 stream_data = (quic_stream_data_t *) stream->data;
1203 stream_data->ctx_id = sctx->c_c_index;
1204 stream_data->thread_index = sctx->c_thread_index;
1209 quic_connect_new_connection (session_endpoint_cfg_t * sep)
1211 vnet_connect_args_t _cargs = { {}, }, *cargs = &_cargs;
1212 quic_main_t *qm = &quic_main;
1214 app_worker_t *app_wrk;
1219 ctx_index = quic_ctx_alloc (vlib_get_thread_index ());
1220 ctx = quic_ctx_get (ctx_index, vlib_get_thread_index ());
1221 ctx->c_quic_ctx_id.parent_app_wrk_id = sep->app_wrk_index;
1222 ctx->c_s_index = QUIC_SESSION_INVALID;
1223 ctx->c_c_index = ctx_index;
1224 ctx->c_quic_ctx_id.udp_is_ip4 = sep->is_ip4;
1225 ctx->timer_handle = QUIC_TIMER_HANDLE_INVALID;
1226 ctx->conn_state = QUIC_CONN_STATE_HANDSHAKE;
1227 ctx->client_opaque = sep->opaque;
1230 ctx->srv_hostname = format (0, "%v", sep->hostname);
1231 vec_terminate_c_string (ctx->srv_hostname);
1235 /* needed by quic for crypto + determining client / server */
1237 format (0, "%U", format_ip46_address, &sep->ip, sep->is_ip4);
1240 clib_memcpy (&cargs->sep, sep, sizeof (session_endpoint_cfg_t));
1241 cargs->sep.transport_proto = TRANSPORT_PROTO_UDPC;
1242 cargs->app_index = qm->app_index;
1243 cargs->api_context = ctx_index;
1245 app_wrk = app_worker_get (sep->app_wrk_index);
1246 app = application_get (app_wrk->app_index);
1247 ctx->c_quic_ctx_id.parent_app_id = app_wrk->app_index;
1248 cargs->sep_ext.ns_index = app->ns_index;
1250 allocate_quicly_ctx (app, 1 /* is client */ );
1252 if ((error = vnet_connect (cargs)))
1259 quic_disconnect (u32 ctx_index, u32 thread_index)
1261 QUIC_DBG (2, "Called quic_disconnect");
1264 ctx = quic_ctx_get (ctx_index, thread_index);
1265 if (ctx->c_quic_ctx_id.is_stream)
1267 QUIC_DBG (2, "Closing stream %x, session %x", ctx_index,
1269 quicly_stream_t *stream = ctx->c_quic_ctx_id.stream;
1270 quicly_reset_stream (stream, 0x30000);
1274 QUIC_DBG (2, "Closing connection %x, session %x", ctx_index,
1276 quicly_conn_t *conn = ctx->c_quic_ctx_id.conn;
1277 /* Start connection closing. Keep sending packets until quicly_send
1278 returns QUICLY_ERROR_FREE_CONNECTION */
1279 quicly_close (conn, 0, "");
1280 /* This also causes all streams to be closed (and the cb called) */
1281 quic_send_packets (ctx);
1286 quic_start_listen (u32 quic_listen_session_index, transport_endpoint_t * tep)
1288 vnet_listen_args_t _bargs, *args = &_bargs;
1289 quic_main_t *qm = &quic_main;
1290 session_handle_t udp_handle;
1291 session_endpoint_cfg_t *sep;
1292 session_t *udp_listen_session;
1293 app_worker_t *app_wrk;
1297 app_listener_t *app_listener;
1299 sep = (session_endpoint_cfg_t *) tep;
1300 app_wrk = app_worker_get (sep->app_wrk_index);
1301 /* We need to call this because we call app_worker_init_connected in
1302 * quic_accept_stream, which assumes the connect segment manager exists */
1303 app_worker_alloc_connects_segment_manager (app_wrk);
1304 app = application_get (app_wrk->app_index);
1305 QUIC_DBG (2, "Called quic_start_listen for app %d", app_wrk->app_index);
1307 allocate_quicly_ctx (app, 0 /* is_client */ );
1309 sep->transport_proto = TRANSPORT_PROTO_UDPC;
1310 memset (args, 0, sizeof (*args));
1311 args->app_index = qm->app_index;
1312 args->sep_ext = *sep;
1313 args->sep_ext.ns_index = app->ns_index;
1314 if (vnet_listen (args))
1317 lctx_index = quic_ctx_alloc (0); /* listener */
1318 udp_handle = args->handle;
1319 app_listener = app_listener_get_w_handle (udp_handle);
1320 udp_listen_session = app_listener_get_session (app_listener);
1321 udp_listen_session->opaque = lctx_index;
1323 lctx = quic_ctx_get (lctx_index, 0); /* listener */
1324 lctx->is_listener = 1;
1325 lctx->c_quic_ctx_id.parent_app_wrk_id = sep->app_wrk_index;
1326 lctx->c_quic_ctx_id.parent_app_id = app_wrk->app_index;
1327 lctx->c_quic_ctx_id.udp_session_handle = udp_handle;
1328 lctx->c_quic_ctx_id.udp_is_ip4 = sep->is_ip4;
1329 lctx->c_s_index = quic_listen_session_index;
1331 QUIC_DBG (2, "Started listening %d", lctx_index);
1336 quic_stop_listen (u32 lctx_index)
1338 QUIC_DBG (2, "Called quic_stop_listen");
1341 lctx = quic_ctx_get (lctx_index, 0); /* listener */
1342 vnet_unlisten_args_t a = {
1343 .handle = lctx->c_quic_ctx_id.udp_session_handle,
1344 .app_index = quic_main.app_index,
1345 .wrk_map_index = 0 /* default wrk */
1347 if (vnet_unlisten (&a))
1348 clib_warning ("unlisten errored");
1350 /* TODO: crypto state cleanup */
1352 quic_ctx_free (lctx); /* listener */
1356 static transport_connection_t *
1357 quic_connection_get (u32 ctx_index, u32 thread_index)
1359 QUIC_DBG (2, "Called quic_connection_get");
1361 ctx = quic_ctx_get (ctx_index, thread_index);
1362 return &ctx->connection;
1365 static transport_connection_t *
1366 quic_listener_get (u32 listener_index)
1368 QUIC_DBG (2, "Called quic_listener_get");
1370 ctx = quic_ctx_get (listener_index, 0);
1371 return &ctx->connection;
1375 format_quic_ctx (u8 * s, va_list * args)
1377 quic_ctx_t *ctx = va_arg (*args, quic_ctx_t *);
1378 u32 verbose = va_arg (*args, u32);
1382 s = format (s, "[#%d][%s] ", ctx->c_thread_index, "Q");
1384 if (ctx->is_listener)
1386 s = format (s, "%s Listener: ", ctx->c_quic_ctx_id.is_stream ?
1387 "Stream" : "QSession");
1389 s = format (s, "app %d wrk %d", ctx->c_quic_ctx_id.parent_app_id,
1390 ctx->c_quic_ctx_id.parent_app_wrk_id);
1395 s = format (s, "%U:%d->%U:%d", format_ip4_address, &ctx->c_lcl_ip4,
1396 clib_net_to_host_u16 (ctx->c_lcl_port),
1397 format_ip4_address, &ctx->c_rmt_ip4,
1398 clib_net_to_host_u16 (ctx->c_rmt_port));
1400 s = format (s, "%U:%d->%U:%d", format_ip6_address, &ctx->c_lcl_ip6,
1401 clib_net_to_host_u16 (ctx->c_lcl_port),
1402 format_ip6_address, &ctx->c_rmt_ip6,
1403 clib_net_to_host_u16 (ctx->c_rmt_port));
1409 format_quic_connection (u8 * s, va_list * args)
1411 u32 qc_index = va_arg (*args, u32);
1412 u32 thread_index = va_arg (*args, u32);
1413 u32 verbose = va_arg (*args, u32);
1414 quic_ctx_t *ctx = quic_ctx_get (qc_index, thread_index);
1416 s = format (s, "%-50U", format_quic_ctx, ctx, verbose);
1421 format_quic_half_open (u8 * s, va_list * args)
1423 u32 qc_index = va_arg (*args, u32);
1424 quic_ctx_t *ctx = quic_ctx_get (qc_index, vlib_get_thread_index ());
1425 s = format (s, "[QUIC] half-open app %u", ctx->c_quic_ctx_id.parent_app_id);
1431 format_quic_listener (u8 * s, va_list * args)
1433 u32 tci = va_arg (*args, u32);
1434 u32 verbose = va_arg (*args, u32);
1435 quic_ctx_t *ctx = quic_ctx_get (tci, vlib_get_thread_index ());
1438 ASSERT (ctx->is_listener);
1439 s = format (s, "%-50U", format_quic_ctx, ctx, verbose);
1444 /*****************************************************************************
1445 * END TRANSPORT PROTO FUNCTIONS
1447 * START SESSION CALLBACKS
1448 * Called from UDP layer
1449 *****************************************************************************/
1452 quic_build_sockaddr (struct sockaddr *sa, socklen_t * salen,
1453 ip46_address_t * addr, u16 port, u8 is_ip4)
1457 struct sockaddr_in *sa4 = (struct sockaddr_in *) sa;
1458 sa4->sin_family = AF_INET;
1459 sa4->sin_port = port;
1460 sa4->sin_addr.s_addr = addr->ip4.as_u32;
1461 *salen = sizeof (struct sockaddr_in);
1465 struct sockaddr_in6 *sa6 = (struct sockaddr_in6 *) sa;
1466 sa6->sin6_family = AF_INET6;
1467 sa6->sin6_port = port;
1468 clib_memcpy (&sa6->sin6_addr, &addr->ip6, 16);
1469 *salen = sizeof (struct sockaddr_in6);
1474 quic_notify_app_connected (quic_ctx_t * ctx)
1476 QUIC_DBG (1, "quic_notify_app_connected");
1477 session_t *quic_session;
1478 app_worker_t *app_wrk;
1479 u32 ctx_id = ctx->c_c_index;
1480 u32 thread_index = ctx->c_thread_index;
1483 app_wrk = app_worker_get_if_valid (ctx->c_quic_ctx_id.parent_app_wrk_id);
1486 quic_disconnect_transport (ctx);
1490 quic_session = session_alloc (thread_index);
1492 lctx = quic_ctx_get (ctx->c_quic_ctx_id.listener_ctx_id, 0);
1493 QUIC_DBG (2, "Allocated quic_session, id %u, thread %u",
1494 quic_session->session_index, quic_session->thread_index);
1495 ctx->c_s_index = quic_session->session_index;
1496 quic_session->app_wrk_index = ctx->c_quic_ctx_id.parent_app_wrk_id;
1497 quic_session->connection_index = ctx->c_c_index;
1498 quic_session->listener_handle = lctx->c_s_index;
1499 quic_session->session_type =
1500 session_type_from_proto_and_ip (TRANSPORT_PROTO_QUIC,
1501 ctx->c_quic_ctx_id.udp_is_ip4);
1503 if (app_worker_init_connected (app_wrk, quic_session))
1505 QUIC_DBG (1, "failed to app_worker_init_connected");
1506 quic_disconnect (ctx_id, thread_index);
1507 return app_worker_connect_notify (app_wrk, NULL, ctx->client_opaque);
1510 quic_session->session_state = SESSION_STATE_CONNECTING;
1511 if (app_worker_connect_notify (app_wrk, quic_session, ctx->client_opaque))
1513 QUIC_DBG (1, "failed to notify app");
1514 quic_disconnect (ctx_id, thread_index);
1518 /* If the app opens a stream in its callback it may invalidate ctx */
1519 ctx = quic_ctx_get (ctx_id, thread_index);
1520 quic_session->session_state = SESSION_STATE_LISTENING;
1521 session_lookup_add_connection (&ctx->connection,
1522 session_handle (quic_session));
1528 quic_session_connected_callback (u32 quic_app_index, u32 ctx_index,
1529 session_t * udp_session, u8 is_fail)
1531 QUIC_DBG (2, "QSession is now connected (id %u)",
1532 udp_session->session_index);
1533 /* This should always be called before quic_connect returns since UDP always
1534 * connects instantly. */
1535 clib_bihash_kv_16_8_t kv;
1536 struct sockaddr_in6 sa6;
1537 struct sockaddr *sa = (struct sockaddr *) &sa6;
1539 transport_connection_t *tc;
1540 app_worker_t *app_wrk;
1541 quicly_conn_t *conn;
1544 u32 thread_index = vlib_get_thread_index ();
1547 ctx = quic_ctx_get (ctx_index, thread_index);
1554 app_worker_get_if_valid (ctx->c_quic_ctx_id.parent_app_wrk_id);
1557 api_context = ctx->c_s_index;
1558 app_worker_connect_notify (app_wrk, 0, api_context);
1563 app_wrk = app_worker_get_if_valid (ctx->c_quic_ctx_id.parent_app_wrk_id);
1566 QUIC_DBG (1, "Appwrk not found");
1569 app = application_get (app_wrk->app_index);
1571 ctx->c_thread_index = thread_index;
1572 ctx->c_c_index = ctx_index;
1574 QUIC_DBG (2, "Quic connect returned %u. New ctx [%u]%x",
1575 is_fail, thread_index, (ctx) ? ctx_index : ~0);
1577 ctx->c_quic_ctx_id.udp_session_handle = session_handle (udp_session);
1578 udp_session->opaque = ctx->c_quic_ctx_id.parent_app_id;
1579 udp_session->session_state = SESSION_STATE_READY;
1581 /* Init QUIC lib connection
1582 * Generate required sockaddr & salen */
1583 tc = session_get_transport (udp_session);
1584 quic_build_sockaddr (sa, &salen, &tc->rmt_ip, tc->rmt_port, tc->is_ip4);
1587 quicly_connect (&ctx->c_quic_ctx_id.conn,
1588 (quicly_context_t *) app->quicly_ctx,
1589 (char *) ctx->srv_hostname, sa, salen,
1590 &quic_main.next_cid, &quic_main.hs_properties, NULL);
1591 ++quic_main.next_cid.master_id;
1592 /* Save context handle in quicly connection */
1593 quic_store_conn_ctx (ctx->c_quic_ctx_id.conn, ctx);
1596 /* Register connection in connections map */
1597 conn = ctx->c_quic_ctx_id.conn;
1598 quic_make_connection_key (&kv, quicly_get_master_id (conn));
1599 kv.value = ((u64) thread_index) << 32 | (u64) ctx_index;
1600 QUIC_DBG (2, "Registering conn with id %lu %lu", kv.key[0], kv.key[1]);
1601 clib_bihash_add_del_16_8 (&quic_main.connection_hash, &kv, 1 /* is_add */ );
1603 quic_send_packets (ctx);
1605 /* UDP stack quirk? preemptively transfer connection if that happens */
1606 if (udp_session->thread_index != thread_index)
1607 quic_transfer_connection (ctx_index, udp_session->thread_index);
1613 quic_receive_connection (void *arg)
1615 u32 new_ctx_id, thread_index = vlib_get_thread_index ();
1616 quic_ctx_t *temp_ctx, *new_ctx;
1617 clib_bihash_kv_16_8_t kv;
1618 quicly_conn_t *conn;
1621 new_ctx_id = quic_ctx_alloc (thread_index);
1622 new_ctx = quic_ctx_get (new_ctx_id, thread_index);
1624 QUIC_DBG (2, "Received conn %u (now %u)", temp_ctx->c_thread_index,
1628 memcpy (new_ctx, temp_ctx, sizeof (quic_ctx_t));
1631 new_ctx->c_thread_index = thread_index;
1632 new_ctx->c_c_index = new_ctx_id;
1634 conn = new_ctx->c_quic_ctx_id.conn;
1635 quic_store_conn_ctx (conn, new_ctx);
1636 quic_make_connection_key (&kv, quicly_get_master_id (conn));
1637 kv.value = ((u64) thread_index) << 32 | (u64) new_ctx_id;
1638 QUIC_DBG (2, "Registering conn with id %lu %lu", kv.key[0], kv.key[1]);
1639 clib_bihash_add_del_16_8 (&quic_main.connection_hash, &kv, 1 /* is_add */ );
1640 new_ctx->timer_handle = QUIC_TIMER_HANDLE_INVALID;
1641 quic_update_timer (new_ctx);
1643 /* Trigger read on this connection ? */
1647 quic_transfer_connection (u32 ctx_index, u32 dest_thread)
1649 tw_timer_wheel_1t_3w_1024sl_ov_t *tw;
1650 quic_ctx_t *ctx, *temp_ctx;
1651 clib_bihash_kv_16_8_t kv;
1652 quicly_conn_t *conn;
1653 u32 thread_index = vlib_get_thread_index ();
1655 QUIC_DBG (2, "Transferring conn %u to thread %u", ctx_index, dest_thread);
1657 temp_ctx = malloc (sizeof (quic_ctx_t));
1659 ctx = quic_ctx_get (ctx_index, thread_index);
1661 memcpy (temp_ctx, ctx, sizeof (quic_ctx_t));
1663 /* Remove from lookup hash, timer wheel and thread-local pool */
1664 conn = ctx->c_quic_ctx_id.conn;
1665 quic_make_connection_key (&kv, quicly_get_master_id (conn));
1666 clib_bihash_add_del_16_8 (&quic_main.connection_hash, &kv, 0 /* is_add */ );
1667 if (ctx->timer_handle != QUIC_TIMER_HANDLE_INVALID)
1669 tw = &quic_main.wrk_ctx[thread_index].timer_wheel;
1670 tw_timer_stop_1t_3w_1024sl_ov (tw, ctx->timer_handle);
1672 quic_ctx_free (ctx);
1674 /* Send connection to destination thread */
1675 session_send_rpc_evt_to_thread (dest_thread, quic_receive_connection,
1680 quic_transfer_connection_rpc (void *arg)
1682 u64 arg_int = (u64) arg;
1683 u32 ctx_index, dest_thread;
1685 ctx_index = (u32) (arg_int >> 32);
1686 dest_thread = (u32) (arg_int & UINT32_MAX);
1687 quic_transfer_connection (ctx_index, dest_thread);
1691 * This assumes that the connection is not yet associated to a session
1692 * So currently it only works on the client side when receiving the first packet
1696 quic_move_connection_to_thread (u32 ctx_index, u32 owner_thread,
1699 QUIC_DBG (2, "Requesting transfer of conn %u from thread %u", ctx_index,
1701 u64 arg = ((u64) ctx_index) << 32 | to_thread;
1702 session_send_rpc_evt_to_thread (owner_thread, quic_transfer_connection_rpc,
1707 quic_session_disconnect_callback (session_t * s)
1709 clib_warning ("UDP session disconnected???");
1713 quic_session_reset_callback (session_t * s)
1715 clib_warning ("UDP session reset???");
1719 quic_session_accepted_callback (session_t * udp_session)
1721 /* New UDP connection, try to accept it */
1722 QUIC_DBG (2, "UDP session accepted");
1725 quic_ctx_t *ctx, *lctx;
1726 session_t *udp_listen_session;
1727 u32 thread_index = vlib_get_thread_index ();
1729 udp_listen_session =
1730 listen_session_get_from_handle (udp_session->listener_handle);
1732 ctx_index = quic_ctx_alloc (thread_index);
1733 ctx = quic_ctx_get (ctx_index, thread_index);
1734 ctx->c_thread_index = udp_session->thread_index;
1735 ctx->c_c_index = ctx_index;
1736 ctx->c_s_index = QUIC_SESSION_INVALID;
1737 ctx->c_quic_ctx_id.udp_session_handle = session_handle (udp_session);
1738 ctx->c_quic_ctx_id.listener_ctx_id = udp_listen_session->opaque;
1739 lctx = quic_ctx_get (udp_listen_session->opaque,
1740 udp_listen_session->thread_index);
1741 ctx->c_quic_ctx_id.udp_is_ip4 = lctx->c_quic_ctx_id.udp_is_ip4;
1742 ctx->c_quic_ctx_id.parent_app_id = lctx->c_quic_ctx_id.parent_app_id;
1743 ctx->c_quic_ctx_id.parent_app_wrk_id =
1744 lctx->c_quic_ctx_id.parent_app_wrk_id;
1745 ctx->timer_handle = QUIC_TIMER_HANDLE_INVALID;
1746 ctx->conn_state = QUIC_CONN_STATE_OPENED;
1748 udp_session->opaque = ctx->c_quic_ctx_id.parent_app_id;
1750 /* Put this ctx in the "opening" pool */
1751 pool_get (quic_main.wrk_ctx[ctx->c_thread_index].opening_ctx_pool,
1753 *pool_index = ctx_index;
1755 /* TODO timeout to delete these if they never connect */
1760 quic_add_segment_callback (u32 client_index, u64 seg_handle)
1762 QUIC_DBG (2, "Called quic_add_segment_callback");
1763 QUIC_DBG (2, "NOT IMPLEMENTED");
1764 /* No-op for builtin */
1769 quic_del_segment_callback (u32 client_index, u64 seg_handle)
1771 QUIC_DBG (2, "Called quic_del_segment_callback");
1772 QUIC_DBG (2, "NOT IMPLEMENTED");
1773 /* No-op for builtin */
1778 quic_custom_tx_callback (void *s)
1780 session_t *stream_session = (session_t *) s;
1781 quicly_stream_t *stream;
1785 svm_fifo_unset_event (stream_session->tx_fifo);
1787 (stream_session->session_state >= SESSION_STATE_TRANSPORT_CLOSING))
1790 quic_ctx_get (stream_session->connection_index,
1791 stream_session->thread_index);
1792 if (PREDICT_FALSE (!ctx->c_quic_ctx_id.is_stream))
1794 goto tx_end; /* Most probably a reschedule */
1797 stream = ctx->c_quic_ctx_id.stream;
1798 if (!quicly_sendstate_is_open (&stream->sendstate))
1800 QUIC_DBG (1, "Warning: tried to send on closed stream");
1804 if ((rv = quicly_stream_sync_sendbuf (stream, 1)) != 0)
1808 quic_send_packets (ctx);
1814 * Returns 0 if a matching connection is found and is on the right thread.
1815 * If a connection is found, even on the wrong thread, ctx_thread and ctx_index
1819 quic_find_packet_ctx (u32 * ctx_thread, u32 * ctx_index,
1820 struct sockaddr *sa, socklen_t salen,
1821 quicly_decoded_packet_t * packet,
1822 u32 caller_thread_index)
1825 quicly_conn_t *conn_;
1826 clib_bihash_kv_16_8_t kv;
1827 clib_bihash_16_8_t *h;
1829 h = &quic_main.connection_hash;
1830 quic_make_connection_key (&kv, &packet->cid.dest.plaintext);
1831 QUIC_DBG (3, "Searching conn with id %lu %lu", kv.key[0], kv.key[1]);
1833 if (clib_bihash_search_16_8 (h, &kv, &kv) == 0)
1835 u32 index = kv.value & UINT32_MAX;
1836 u8 thread_id = kv.value >> 32;
1837 /* Check if this connection belongs to this thread, otherwise
1838 * ask for it to be moved */
1839 if (thread_id != caller_thread_index)
1841 QUIC_DBG (2, "Connection is on wrong thread");
1842 /* Cannot make full check with quicly_is_destination... */
1844 *ctx_thread = thread_id;
1847 ctx_ = quic_ctx_get (index, vlib_get_thread_index ());
1848 conn_ = ctx_->c_quic_ctx_id.conn;
1849 if (conn_ && quicly_is_destination (conn_, sa, salen, packet))
1851 QUIC_DBG (3, "Connection found");
1853 *ctx_thread = thread_id;
1857 QUIC_DBG (3, "connection not found");
1862 quic_receive (quic_ctx_t * ctx, quicly_conn_t * conn,
1863 quicly_decoded_packet_t packet)
1866 u32 ctx_id = ctx->c_c_index;
1867 u32 thread_index = ctx->c_thread_index;
1868 /* TODO : QUICLY_ERROR_PACKET_IGNORED sould be handled */
1869 rv = quicly_receive (conn, &packet);
1872 QUIC_DBG (2, "Quicly receive ignored packet code : %u", rv);
1875 /* ctx pointer may change if a new stream is opened */
1876 ctx = quic_ctx_get (ctx_id, thread_index);
1877 /* Conn may be set to null if the connection is terminated */
1878 if (ctx->c_quic_ctx_id.conn && ctx->conn_state == QUIC_CONN_STATE_HANDSHAKE)
1880 if (quicly_connection_is_ready (conn))
1882 ctx->conn_state = QUIC_CONN_STATE_READY;
1883 if (quicly_is_client (conn))
1885 quic_notify_app_connected (ctx);
1886 ctx = quic_ctx_get (ctx_id, thread_index);
1890 return quic_send_packets (ctx);
1894 quic_create_quic_session (quic_ctx_t * ctx)
1896 session_t *quic_session;
1897 app_worker_t *app_wrk;
1901 quic_session = session_alloc (ctx->c_thread_index);
1902 QUIC_DBG (2, "Allocated quic_session, id %u, thread %u ctx %u",
1903 quic_session->session_index, quic_session->thread_index,
1905 quic_session->session_state = SESSION_STATE_LISTENING;
1906 ctx->c_s_index = quic_session->session_index;
1908 lctx = quic_ctx_get (ctx->c_quic_ctx_id.listener_ctx_id, 0);
1910 quic_session->app_wrk_index = lctx->c_quic_ctx_id.parent_app_wrk_id;
1911 quic_session->connection_index = ctx->c_c_index;
1912 quic_session->session_type =
1913 session_type_from_proto_and_ip (TRANSPORT_PROTO_QUIC,
1914 ctx->c_quic_ctx_id.udp_is_ip4);
1915 quic_session->listener_handle = lctx->c_quic_ctx_id.listener_ctx_id;
1917 /* TODO: don't alloc fifos when we don't transfer data on this session
1918 * but we still need fifos for the events? */
1919 if ((rv = app_worker_init_accepted (quic_session)))
1921 QUIC_DBG (1, "failed to allocate fifos");
1922 session_free (quic_session);
1925 session_lookup_add_connection (&ctx->connection,
1926 session_handle (quic_session));
1927 app_wrk = app_worker_get (quic_session->app_wrk_index);
1928 rv = app_worker_accept_notify (app_wrk, quic_session);
1931 QUIC_DBG (1, "failed to notify accept worker app");
1938 quic_create_connection (quicly_context_t * quicly_ctx,
1939 u64 udp_session_handle, u32 ctx_index,
1940 struct sockaddr *sa,
1941 socklen_t salen, quicly_decoded_packet_t packet)
1943 clib_bihash_kv_16_8_t kv;
1945 quicly_conn_t *conn;
1946 u32 thread_index = vlib_get_thread_index ();
1949 /* new connection, accept and create context if packet is valid
1950 * TODO: check if socket is actually listening? */
1951 if ((rv = quicly_accept (&conn, quicly_ctx, sa, salen,
1952 &packet, ptls_iovec_init (NULL, 0),
1953 &quic_main.next_cid, NULL)))
1955 /* Invalid packet, pass */
1956 assert (conn == NULL);
1957 QUIC_DBG (1, "Accept failed with %d", rv);
1958 /* TODO: cleanup created quic ctx and UDP session */
1961 assert (conn != NULL);
1963 ++quic_main.next_cid.master_id;
1964 ctx = quic_ctx_get (ctx_index, thread_index);
1965 /* Save ctx handle in quicly connection */
1966 quic_store_conn_ctx (conn, ctx);
1967 ctx->c_quic_ctx_id.conn = conn;
1968 ctx->conn_state = QUIC_CONN_STATE_HANDSHAKE;
1970 quic_create_quic_session (ctx);
1972 /* Register connection in connections map */
1973 quic_make_connection_key (&kv, quicly_get_master_id (conn));
1974 kv.value = ((u64) thread_index) << 32 | (u64) ctx_index;
1975 clib_bihash_add_del_16_8 (&quic_main.connection_hash, &kv, 1 /* is_add */ );
1976 QUIC_DBG (2, "Registering conn with id %lu %lu", kv.key[0], kv.key[1]);
1978 return quic_send_packets (ctx);
1982 quic_reset_connection (quicly_context_t * quicly_ctx, u64 udp_session_handle,
1983 struct sockaddr *sa, socklen_t salen,
1984 quicly_decoded_packet_t packet)
1986 /* short header packet; potentially a dead connection. No need to check the
1987 * length of the incoming packet, because loop is prevented by authenticating
1988 * the CID (by checking node_id and thread_id). If the peer is also sending a
1989 * reset, then the next CID is highly likely to contain a non-authenticating
1991 QUIC_DBG (2, "Sending stateless reset");
1992 quicly_datagram_t *dgram;
1993 session_t *udp_session;
1994 if (packet.cid.dest.plaintext.node_id == 0
1995 && packet.cid.dest.plaintext.thread_id == 0)
1997 dgram = quicly_send_stateless_reset (quicly_ctx, sa, salen,
1998 &packet.cid.dest.plaintext);
2001 udp_session = session_get_from_handle (udp_session_handle);
2002 return quic_send_datagram (udp_session, dgram); /* TODO : set event on fifo */
2008 quic_app_rx_callback (session_t * udp_session)
2010 /* Read data from UDP rx_fifo and pass it to the quicly conn. */
2011 quicly_decoded_packet_t packet;
2012 session_dgram_hdr_t ph;
2014 quic_ctx_t *ctx = NULL;
2017 struct sockaddr_in6 sa6;
2018 struct sockaddr *sa = (struct sockaddr *) &sa6;
2020 u32 max_deq, len, full_len, ctx_index = UINT32_MAX, ctx_thread =
2024 u32 *opening_ctx_pool, *ctx_index_ptr;
2025 u32 app_index = udp_session->opaque;
2026 u64 udp_session_handle = session_handle (udp_session);
2028 u32 thread_index = vlib_get_thread_index ();
2030 app = application_get_if_valid (app_index);
2033 QUIC_DBG (1, "Got RX on detached app");
2034 /* TODO: close this session, cleanup state? */
2040 udp_session = session_get_from_handle (udp_session_handle); /* session alloc might have happened */
2041 f = udp_session->rx_fifo;
2042 svm_fifo_unset_event (f);
2043 max_deq = svm_fifo_max_dequeue (f);
2044 if (max_deq < sizeof (session_dgram_hdr_t))
2047 ret = svm_fifo_peek (f, 0, SESSION_CONN_HDR_LEN, (u8 *) & ph);
2048 if (ret != SESSION_CONN_HDR_LEN)
2050 QUIC_DBG (1, "Not enough data for header in RX");
2053 if (ph.data_length < ph.data_offset)
2055 QUIC_DBG (1, "Not enough data vs offset in RX");
2058 len = ph.data_length - ph.data_offset;
2059 full_len = ph.data_length + ph.data_offset + SESSION_CONN_HDR_LEN;
2060 if (full_len > max_deq)
2062 QUIC_DBG (1, "Not enough data in fifo RX");
2066 /* Quicly can read len bytes from the fifo at offset:
2067 * ph.data_offset + SESSION_CONN_HDR_LEN */
2068 data = malloc (ph.data_length);
2070 svm_fifo_peek (f, ph.data_offset + SESSION_CONN_HDR_LEN,
2071 ph.data_length, data);
2072 if (ret != ph.data_length)
2074 QUIC_DBG (1, "Not enough data peeked in RX");
2080 quicly_decode_packet ((quicly_context_t *) app->quicly_ctx, &packet,
2084 quic_build_sockaddr (sa, &salen, &ph.rmt_ip, ph.rmt_port, ph.is_ip4);
2086 quicly_decode_packet ((quicly_context_t *) app->quicly_ctx, &packet,
2089 if (plen != SIZE_MAX)
2092 err = quic_find_packet_ctx (&ctx_thread, &ctx_index, sa, salen,
2093 &packet, thread_index);
2096 ctx = quic_ctx_get (ctx_index, thread_index);
2097 quic_receive (ctx, ctx->c_quic_ctx_id.conn, packet);
2099 else if (ctx_thread != UINT32_MAX)
2101 /* Connection found but on wrong thread, ask move */
2102 quic_move_connection_to_thread (ctx_index, ctx_thread,
2105 else if ((packet.octets.base[0] & QUICLY_PACKET_TYPE_BITMASK) ==
2106 QUICLY_PACKET_TYPE_INITIAL)
2108 /* Try to find matching "opening" ctx */
2110 quic_main.wrk_ctx[thread_index].opening_ctx_pool;
2113 pool_foreach (ctx_index_ptr, opening_ctx_pool,
2115 ctx = quic_ctx_get (*ctx_index_ptr, thread_index);
2116 if (ctx->c_quic_ctx_id.udp_session_handle == udp_session_handle)
2118 /* Right ctx found, create conn & remove from pool */
2119 quic_create_connection ((quicly_context_t *) app->quicly_ctx,
2120 udp_session_handle, *ctx_index_ptr,
2122 pool_put (opening_ctx_pool, ctx_index_ptr);
2123 goto ctx_search_done;
2131 quic_reset_connection ((quicly_context_t *) app->quicly_ctx,
2132 udp_session_handle, sa, salen, packet);
2136 svm_fifo_dequeue_drop (f,
2137 ph.data_length + ph.data_offset +
2138 SESSION_CONN_HDR_LEN);
2146 quic_common_get_transport_endpoint (quic_ctx_t * ctx,
2147 transport_endpoint_t * tep, u8 is_lcl)
2149 session_t *udp_session;
2150 if (ctx->c_quic_ctx_id.is_stream)
2152 tep->is_ip4 = 255; /* well this is ugly */
2157 session_get_from_handle (ctx->c_quic_ctx_id.udp_session_handle);
2158 session_get_endpoint (udp_session, tep, is_lcl);
2163 quic_get_transport_listener_endpoint (u32 listener_index,
2164 transport_endpoint_t * tep, u8 is_lcl)
2167 app_listener_t *app_listener;
2168 session_t *udp_listen_session;
2169 ctx = quic_ctx_get (listener_index, vlib_get_thread_index ());
2170 if (ctx->is_listener)
2173 app_listener_get_w_handle (ctx->c_quic_ctx_id.udp_session_handle);
2174 udp_listen_session = app_listener_get_session (app_listener);
2175 return session_get_endpoint (udp_listen_session, tep, is_lcl);
2177 quic_common_get_transport_endpoint (ctx, tep, is_lcl);
2181 quic_get_transport_endpoint (u32 ctx_index, u32 thread_index,
2182 transport_endpoint_t * tep, u8 is_lcl)
2185 ctx = quic_ctx_get (ctx_index, thread_index);
2186 quic_common_get_transport_endpoint (ctx, tep, is_lcl);
2189 /*****************************************************************************
2190 * END TRANSPORT PROTO FUNCTIONS
2191 *****************************************************************************/
2194 static session_cb_vft_t quic_app_cb_vft = {
2195 .session_accept_callback = quic_session_accepted_callback,
2196 .session_disconnect_callback = quic_session_disconnect_callback,
2197 .session_connected_callback = quic_session_connected_callback,
2198 .session_reset_callback = quic_session_reset_callback,
2199 .add_segment_callback = quic_add_segment_callback,
2200 .del_segment_callback = quic_del_segment_callback,
2201 .builtin_app_rx_callback = quic_app_rx_callback,
2204 static const transport_proto_vft_t quic_proto = {
2205 .connect = quic_connect,
2206 .close = quic_disconnect,
2207 .start_listen = quic_start_listen,
2208 .stop_listen = quic_stop_listen,
2209 .get_connection = quic_connection_get,
2210 .get_listener = quic_listener_get,
2211 .update_time = quic_update_time,
2212 .custom_tx = quic_custom_tx_callback,
2213 .tx_type = TRANSPORT_TX_INTERNAL,
2214 .service_type = TRANSPORT_SERVICE_APP,
2215 .format_connection = format_quic_connection,
2216 .format_half_open = format_quic_half_open,
2217 .format_listener = format_quic_listener,
2218 .get_transport_endpoint = quic_get_transport_endpoint,
2219 .get_transport_listener_endpoint = quic_get_transport_listener_endpoint,
2223 static clib_error_t *
2224 quic_init (vlib_main_t * vm)
2226 u32 add_segment_size = (4096ULL << 20) - 1, segment_size = 512 << 20;
2227 vlib_thread_main_t *vtm = vlib_get_thread_main ();
2228 tw_timer_wheel_1t_3w_1024sl_ov_t *tw;
2229 vnet_app_attach_args_t _a, *a = &_a;
2230 u64 options[APP_OPTIONS_N_OPTIONS];
2231 quic_main_t *qm = &quic_main;
2232 u32 fifo_size = QUIC_FIFO_SIZE;
2235 num_threads = 1 /* main thread */ + vtm->n_threads;
2237 memset (a, 0, sizeof (*a));
2238 memset (options, 0, sizeof (options));
2240 a->session_cb_vft = &quic_app_cb_vft;
2241 a->api_client_index = APP_INVALID_INDEX;
2242 a->options = options;
2243 a->name = format (0, "quic");
2244 a->options[APP_OPTIONS_SEGMENT_SIZE] = segment_size;
2245 a->options[APP_OPTIONS_ADD_SEGMENT_SIZE] = add_segment_size;
2246 a->options[APP_OPTIONS_RX_FIFO_SIZE] = fifo_size;
2247 a->options[APP_OPTIONS_TX_FIFO_SIZE] = fifo_size;
2248 a->options[APP_OPTIONS_FLAGS] = APP_OPTIONS_FLAGS_IS_BUILTIN;
2249 a->options[APP_OPTIONS_FLAGS] |= APP_OPTIONS_FLAGS_USE_GLOBAL_SCOPE;
2250 a->options[APP_OPTIONS_FLAGS] |= APP_OPTIONS_FLAGS_IS_TRANSPORT_APP;
2252 if (vnet_application_attach (a))
2254 clib_warning ("failed to attach quic app");
2255 return clib_error_return (0, "failed to attach quic app");
2258 vec_validate (qm->ctx_pool, num_threads - 1);
2259 vec_validate (qm->wrk_ctx, num_threads - 1);
2260 /* Timer wheels, one per thread. */
2261 for (i = 0; i < num_threads; i++)
2263 tw = &qm->wrk_ctx[i].timer_wheel;
2264 tw_timer_wheel_init_1t_3w_1024sl_ov (tw, quic_expired_timers_dispatch,
2265 1e-3 /* timer period 1ms */ , ~0);
2266 tw->last_run_time = vlib_time_now (vlib_get_main ());
2269 clib_bihash_init_16_8 (&qm->connection_hash, "quic connections", 1024,
2272 if (!qm->ca_cert_path)
2273 qm->ca_cert_path = QUIC_DEFAULT_CA_CERT_PATH;
2275 qm->app_index = a->app_index;
2277 qm->tstamp_ticks_per_clock = vm->clib_time.seconds_per_clock
2278 / QUIC_TSTAMP_RESOLUTION;
2280 transport_register_protocol (TRANSPORT_PROTO_QUIC, &quic_proto,
2281 FIB_PROTOCOL_IP4, ~0);
2282 transport_register_protocol (TRANSPORT_PROTO_QUIC, &quic_proto,
2283 FIB_PROTOCOL_IP6, ~0);
2289 VLIB_INIT_FUNCTION (quic_init);
2292 VLIB_PLUGIN_REGISTER () =
2294 .version = VPP_BUILD_VER,
2295 .description = "Quic transport protocol",
2300 * fd.io coding-style-patch-verification: ON
2303 * eval: (c-set-style "gnu")