diff options
Diffstat (limited to 'src/plugins/quic/quic.c')
| -rw-r--r-- | src/plugins/quic/quic.c | 224 |
1 files changed, 139 insertions, 85 deletions
diff --git a/src/plugins/quic/quic.c b/src/plugins/quic/quic.c index 7f879cc582e..b120a46f7e8 100644 --- a/src/plugins/quic/quic.c +++ b/src/plugins/quic/quic.c @@ -1,5 +1,5 @@ /* - * Copyright (c) 2019 Cisco and/or its affiliates. + * Copyright (c) 2021 Cisco and/or its affiliates. * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at: @@ -51,7 +51,7 @@ static int quic_reset_connection (u64 udp_session_handle, static void quic_proto_on_close (u32 ctx_index, u32 thread_index); static quicly_stream_open_t on_stream_open; -static quicly_closed_by_peer_t on_closed_by_peer; +static quicly_closed_by_remote_t on_closed_by_remote; static quicly_now_t quicly_vpp_now_cb; /* Crypto contexts */ @@ -91,33 +91,6 @@ quic_crypto_context_free_if_needed (crypto_context_t * crctx, u8 thread_index) pool_put (qm->wrk_ctx[thread_index].crypto_ctx_pool, crctx); } -static quicly_datagram_t * -quic_alloc_packet (quicly_packet_allocator_t * self, size_t payloadsize) -{ - quicly_datagram_t *packet; - if ((packet = - clib_mem_alloc (sizeof (*packet) + payloadsize + - sizeof (quic_encrypt_cb_ctx))) == NULL) - return NULL; - packet->data.base = - (uint8_t *) packet + sizeof (*packet) + sizeof (quic_encrypt_cb_ctx); - quic_encrypt_cb_ctx *encrypt_cb_ctx = - (quic_encrypt_cb_ctx *) ((uint8_t *) packet + sizeof (*packet)); - - clib_memset (encrypt_cb_ctx, 0, sizeof (*encrypt_cb_ctx)); - return packet; -} - -static void -quic_free_packet (quicly_packet_allocator_t * self, - quicly_datagram_t * packet) -{ - clib_mem_free (packet); -} - -quicly_packet_allocator_t quic_packet_allocator = - { quic_alloc_packet, quic_free_packet }; - static int quic_app_cert_key_pair_delete_callback (app_cert_key_pair_t * ckpair) { @@ -213,6 +186,35 @@ quic_set_max_packets_per_key_fn (vlib_main_t * vm, return 0; } +static clib_error_t * +quic_set_cc_fn (vlib_main_t *vm, unformat_input_t *input, + vlib_cli_command_t *cmd) +{ + unformat_input_t _line_input, *line_input = &_line_input; + quic_main_t *qm = &quic_main; + clib_error_t *e = 0; + + if (!unformat_user (input, unformat_line_input, line_input)) + return 0; + + while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT) + { + if (unformat (line_input, "reno")) + qm->default_quic_cc = QUIC_CC_RENO; + else if (unformat (line_input, "cubic")) + qm->default_quic_cc = QUIC_CC_CUBIC; + else + { + e = clib_error_return (0, "unknown input '%U'", + format_unformat_error, line_input); + goto done; + } + } +done: + unformat_free (line_input); + return e; +} + static void quic_release_crypto_context (u32 crypto_context_index, u8 thread_index) { @@ -261,21 +263,29 @@ quic_init_crypto_context (crypto_context_t * crctx, quic_ctx_t * ctx) ptls_ctx->encrypt_ticket = &qm->session_cache.super; clib_memcpy (quicly_ctx, &quicly_spec_context, sizeof (quicly_context_t)); - quicly_ctx->max_packet_size = QUIC_MAX_PACKET_SIZE; quicly_ctx->max_packets_per_key = qm->max_packets_per_key; quicly_ctx->tls = ptls_ctx; quicly_ctx->stream_open = &on_stream_open; - quicly_ctx->closed_by_peer = &on_closed_by_peer; + quicly_ctx->closed_by_remote = &on_closed_by_remote; quicly_ctx->now = &quicly_vpp_now_cb; quicly_amend_ptls_context (quicly_ctx->tls); - quicly_ctx->packet_allocator = &quic_packet_allocator; - quicly_ctx->crypto_engine = &quic_crypto_engine; + if (qm->vnet_crypto_enabled && + qm->default_crypto_engine == CRYPTO_ENGINE_VPP) + quicly_ctx->crypto_engine = &quic_crypto_engine; + else + quicly_ctx->crypto_engine = &quicly_default_crypto_engine; + quicly_ctx->transport_params.max_data = QUIC_INT_MAX; quicly_ctx->transport_params.max_streams_uni = (uint64_t) 1 << 60; quicly_ctx->transport_params.max_streams_bidi = (uint64_t) 1 << 60; quicly_ctx->transport_params.max_idle_timeout = qm->connection_timeout; + if (qm->default_quic_cc == QUIC_CC_CUBIC) + quicly_ctx->init_cc = &quicly_cc_cubic_init; + else if (qm->default_quic_cc == QUIC_CC_RENO) + quicly_ctx->init_cc = &quicly_cc_reno_init; + app = application_get (ctx->parent_app_id); quicly_ctx->transport_params.max_stream_data.bidi_local = app->sm_properties.rx_fifo_size - 1; @@ -283,6 +293,7 @@ quic_init_crypto_context (crypto_context_t * crctx, quic_ctx_t * ctx) app->sm_properties.tx_fifo_size - 1; quicly_ctx->transport_params.max_stream_data.uni = QUIC_INT_MAX; + quicly_ctx->transport_params.max_udp_payload_size = QUIC_MAX_PACKET_SIZE; if (!app->quic_iv_set) { ptls_openssl_random_bytes (app->quic_iv, QUIC_IV_LEN - 1); @@ -632,7 +643,8 @@ quic_connection_closed (quic_ctx_t * ctx) } static int -quic_send_datagram (session_t * udp_session, quicly_datagram_t * packet) +quic_send_datagram (session_t *udp_session, struct iovec *packet, + quicly_address_t *dest, quicly_address_t *src) { u32 max_enqueue; session_dgram_hdr_t hdr; @@ -640,7 +652,7 @@ quic_send_datagram (session_t * udp_session, quicly_datagram_t * packet) svm_fifo_t *f; transport_connection_t *tc; - len = packet->data.len; + len = packet->iov_len; f = udp_session->tx_fifo; tc = session_get_transport (udp_session); max_enqueue = svm_fifo_max_enqueue (f); @@ -661,15 +673,15 @@ quic_send_datagram (session_t * udp_session, quicly_datagram_t * packet) /* Read dest address from quicly-provided sockaddr */ if (hdr.is_ip4) { - QUIC_ASSERT (packet->dest.sa.sa_family == AF_INET); - struct sockaddr_in *sa4 = (struct sockaddr_in *) &packet->dest.sa; + QUIC_ASSERT (dest->sa.sa_family == AF_INET); + struct sockaddr_in *sa4 = (struct sockaddr_in *) &dest->sa; hdr.rmt_port = sa4->sin_port; hdr.rmt_ip.ip4.as_u32 = sa4->sin_addr.s_addr; } else { - QUIC_ASSERT (packet->dest.sa.sa_family == AF_INET6); - struct sockaddr_in6 *sa6 = (struct sockaddr_in6 *) &packet->dest.sa; + QUIC_ASSERT (dest->sa.sa_family == AF_INET6); + struct sockaddr_in6 *sa6 = (struct sockaddr_in6 *) &dest->sa; hdr.rmt_port = sa6->sin6_port; clib_memcpy (&hdr.rmt_ip.ip6, &sa6->sin6_addr, 16); } @@ -680,7 +692,7 @@ quic_send_datagram (session_t * udp_session, quicly_datagram_t * packet) QUIC_ERR ("Not enough space to enqueue header"); return QUIC_ERROR_FULL_FIFO; } - ret = svm_fifo_enqueue (f, len, packet->data.base); + ret = svm_fifo_enqueue (f, len, packet->iov_base); if (ret != len) { QUIC_ERR ("Not enough space to enqueue payload"); @@ -695,14 +707,18 @@ quic_send_datagram (session_t * udp_session, quicly_datagram_t * packet) static int quic_send_packets (quic_ctx_t * ctx) { - quic_main_t *qm = &quic_main; - quicly_datagram_t *packets[QUIC_SEND_PACKET_VEC_SIZE]; + struct iovec packets[QUIC_SEND_PACKET_VEC_SIZE]; + uint8_t + buf[QUIC_SEND_PACKET_VEC_SIZE * quic_get_quicly_ctx_from_ctx (ctx) + ->transport_params.max_udp_payload_size]; session_t *udp_session; quicly_conn_t *conn; size_t num_packets, i, max_packets; - quicly_packet_allocator_t *pa; + quicly_address_t dest, src; + + num_packets = QUIC_SEND_PACKET_VEC_SIZE; + int err = 0; - u32 thread_index = vlib_get_thread_index (); /* We have sctx, get qctx */ if (quic_ctx_is_stream (ctx)) @@ -723,26 +739,23 @@ quic_send_packets (quic_ctx_t * ctx) if (quic_sendable_packet_count (udp_session) < 2) goto stop_sending; - pa = quic_get_quicly_ctx_from_ctx (ctx)->packet_allocator; do { max_packets = quic_sendable_packet_count (udp_session); if (max_packets < 2) break; num_packets = max_packets; - if ((err = quicly_send (conn, packets, &num_packets))) + if ((err = quicly_send (conn, &dest, &src, packets, &num_packets, buf, + sizeof (buf)))) goto quicly_error; - quic_crypto_batch_tx_packets (&qm->wrk_ctx - [thread_index].crypto_context_batch); - for (i = 0; i != num_packets; ++i) { - quic_crypto_finalize_send_packet (packets[i]); - if ((err = quic_send_datagram (udp_session, packets[i]))) + + if ((err = + quic_send_datagram (udp_session, &packets[i], &dest, &src))) goto quicly_error; - pa->free_packet (pa, packets[i]); } } while (num_packets > 0 && num_packets == max_packets); @@ -1043,9 +1056,9 @@ quic_on_stream_open (quicly_stream_open_t * self, quicly_stream_t * stream) } static void -quic_on_closed_by_peer (quicly_closed_by_peer_t * self, quicly_conn_t * conn, - int code, uint64_t frame_type, - const char *reason, size_t reason_len) +quic_on_closed_by_remote (quicly_closed_by_remote_t *self, quicly_conn_t *conn, + int code, uint64_t frame_type, const char *reason, + size_t reason_len) { quic_ctx_t *ctx = quic_get_conn_ctx (conn); #if QUIC_DEBUG >= 2 @@ -1760,7 +1773,7 @@ quic_udp_session_connected_callback (u32 quic_app_index, u32 ctx_index, session_t * udp_session, session_error_t err) { - QUIC_DBG (2, "QSession is now connected (id %u)", + QUIC_DBG (2, "UDP Session is now connected (id %u)", udp_session->session_index); /* This should always be called before quic_connect returns since UDP always * connects instantly. */ @@ -1793,8 +1806,7 @@ quic_udp_session_connected_callback (u32 quic_app_index, u32 ctx_index, ctx->c_thread_index = thread_index; ctx->c_c_index = ctx_index; - QUIC_DBG (2, "Quic connect returned %u. New ctx [%u]%x", - is_fail, thread_index, (ctx) ? ctx_index : ~0); + QUIC_DBG (2, "New ctx [%u]%x", thread_index, (ctx) ? ctx_index : ~0); ctx->udp_session_handle = session_handle (udp_session); udp_session->opaque = ctx_index; @@ -2131,19 +2143,31 @@ quic_reset_connection (u64 udp_session_handle, quic_rx_packet_ctx_t * pctx) * CID, ... */ QUIC_DBG (2, "Sending stateless reset"); int rv; - quicly_datagram_t *dgram; session_t *udp_session; quicly_context_t *quicly_ctx; if (pctx->packet.cid.dest.plaintext.node_id != 0 || pctx->packet.cid.dest.plaintext.thread_id != 0) return 0; quicly_ctx = quic_get_quicly_ctx_from_udp (udp_session_handle); - dgram = quicly_send_stateless_reset (quicly_ctx, &pctx->sa, NULL, - &pctx->packet.cid.dest.plaintext); - if (dgram == NULL) + quic_ctx_t *qctx = quic_ctx_get (pctx->ctx_index, pctx->thread_index); + + quicly_address_t src; + uint8_t payload[quicly_ctx->transport_params.max_udp_payload_size]; + size_t payload_len = + quicly_send_stateless_reset (quicly_ctx, &src.sa, payload); + if (payload_len == 0) return 1; + + struct iovec packet; + packet.iov_len = payload_len; + packet.iov_base = payload; + + struct _st_quicly_conn_public_t *conn = + (struct _st_quicly_conn_public_t *) qctx->conn; + udp_session = session_get_from_handle (udp_session_handle); - rv = quic_send_datagram (udp_session, dgram); + rv = quic_send_datagram (udp_session, &packet, &conn->remote.address, + &conn->local.address); quic_set_udp_tx_evt (udp_session); return rv; } @@ -2185,8 +2209,10 @@ quic_process_one_rx_packet (u64 udp_session_handle, svm_fifo_t * f, quic_build_sockaddr (&pctx->sa, &pctx->salen, &pctx->ph.rmt_ip, pctx->ph.rmt_port, pctx->ph.is_ip4); quicly_ctx = quic_get_quicly_ctx_from_udp (udp_session_handle); - plen = quicly_decode_packet (quicly_ctx, &pctx->packet, - pctx->data, pctx->ph.data_length); + + size_t off = 0; + plen = quicly_decode_packet (quicly_ctx, &pctx->packet, pctx->data, + pctx->ph.data_length, &off); if (plen == SIZE_MAX) { @@ -2197,7 +2223,9 @@ quic_process_one_rx_packet (u64 udp_session_handle, svm_fifo_t * f, if (rv == QUIC_PACKET_TYPE_RECEIVE) { pctx->ptype = QUIC_PACKET_TYPE_RECEIVE; - if (quic_main.vnet_crypto_enabled) + + if (quic_main.vnet_crypto_enabled && + quic_main.default_crypto_engine == CRYPTO_ENGINE_VPP) { quic_ctx_t *qctx = quic_ctx_get (pctx->ctx_index, thread_index); quic_crypto_decrypt_packet (qctx, pctx); @@ -2227,7 +2255,6 @@ static int quic_udp_session_rx_callback (session_t * udp_session) { /* Read data from UDP rx_fifo and pass it to the quicly conn. */ - quic_main_t *qm = &quic_main; quic_ctx_t *ctx = NULL, *prev_ctx = NULL; svm_fifo_t *f = udp_session->rx_fifo; u32 max_deq; @@ -2236,7 +2263,7 @@ quic_udp_session_rx_callback (session_t * udp_session) u32 thread_index = vlib_get_thread_index (); u32 cur_deq, fifo_offset, max_packets, i; - quic_rx_packet_ctx_t packets_ctx[QUIC_RCV_MAX_BATCH_PACKETS]; + quic_rx_packet_ctx_t packets_ctx[QUIC_RCV_MAX_PACKETS]; if (udp_session->flags & SESSION_F_IS_MIGRATING) { @@ -2250,13 +2277,12 @@ rx_start: return 0; fifo_offset = 0; - max_packets = QUIC_RCV_MAX_BATCH_PACKETS; + max_packets = QUIC_RCV_MAX_PACKETS; #if CLIB_DEBUG > 0 clib_memset (packets_ctx, 0xfa, - QUIC_RCV_MAX_BATCH_PACKETS * sizeof (quic_rx_packet_ctx_t)); + QUIC_RCV_MAX_PACKETS * sizeof (quic_rx_packet_ctx_t)); #endif - for (i = 0; i < max_packets; i++) { packets_ctx[i].thread_index = UINT32_MAX; @@ -2287,9 +2313,6 @@ rx_start: } } - quic_crypto_batch_rx_packets (&qm-> - wrk_ctx[thread_index].crypto_context_batch); - for (i = 0; i < max_packets; i++) { switch (packets_ctx[i].ptype) @@ -2424,7 +2447,9 @@ static const transport_proto_vft_t quic_proto = { /* *INDENT-ON* */ static quicly_stream_open_t on_stream_open = { quic_on_stream_open }; -static quicly_closed_by_peer_t on_closed_by_peer = { quic_on_closed_by_peer }; +static quicly_closed_by_remote_t on_closed_by_remote = { + quic_on_closed_by_remote +}; static quicly_now_t quicly_vpp_now_cb = { quic_get_time }; static void @@ -2502,9 +2527,6 @@ quic_init (vlib_main_t * vm) tw->last_run_time = vlib_time_now (vlib_get_main ()); clib_bihash_init_24_8 (&qm->wrk_ctx[i].crypto_context_hash, "quic crypto contexts", 64, 128 << 10); - - qm->wrk_ctx[i].crypto_context_batch.nb_rx_packets = 0; - qm->wrk_ctx[i].crypto_context_batch.nb_tx_packets = 0; } clib_bihash_init_16_8 (&qm->connection_hash, "quic connections", 1024, @@ -2522,18 +2544,26 @@ quic_init (vlib_main_t * vm) clib_bitmap_alloc (qm->available_crypto_engines, app_crypto_engine_n_types ()); - quic_register_cipher_suite (CRYPTO_ENGINE_VPP, quic_crypto_cipher_suites); quic_register_cipher_suite (CRYPTO_ENGINE_PICOTLS, ptls_openssl_cipher_suites); - qm->default_crypto_engine = CRYPTO_ENGINE_VPP; - qm->max_packets_per_key = DEFAULT_MAX_PACKETS_PER_KEY; - clib_rwlock_init (&qm->crypto_keys_quic_rw_lock); + qm->default_crypto_engine = CRYPTO_ENGINE_PICOTLS; vnet_crypto_main_t *cm = &crypto_main; if (vec_len (cm->engines) == 0) qm->vnet_crypto_enabled = 0; else qm->vnet_crypto_enabled = 1; + if (qm->vnet_crypto_enabled == 1) + { + quic_register_cipher_suite (CRYPTO_ENGINE_VPP, + quic_crypto_cipher_suites); + qm->default_crypto_engine = CRYPTO_ENGINE_VPP; + } + + qm->max_packets_per_key = DEFAULT_MAX_PACKETS_PER_KEY; + clib_rwlock_init (&qm->crypto_keys_quic_rw_lock); + + qm->default_quic_cc = QUIC_CC_RENO; vec_free (a->name); return 0; @@ -2757,6 +2787,26 @@ quic_format_connection_ctx (u8 * s, va_list * args) quicly_stats.num_packets.received, quicly_stats.num_packets.lost, quicly_stats.num_packets.ack_received); + s = + format (s, "\ncwnd:%u ssthresh:%u recovery_end:%lu", quicly_stats.cc.cwnd, + quicly_stats.cc.ssthresh, quicly_stats.cc.recovery_end); + + quicly_context_t *quicly_ctx = quic_get_quicly_ctx_from_ctx (ctx); + if (quicly_ctx->init_cc == &quicly_cc_cubic_init) + { + s = format ( + s, + "\nk:%d w_max:%u w_last_max:%u avoidance_start:%ld last_sent_time:%ld", + quicly_stats.cc.state.cubic.k, quicly_stats.cc.state.cubic.w_max, + quicly_stats.cc.state.cubic.w_last_max, + quicly_stats.cc.state.cubic.avoidance_start, + quicly_stats.cc.state.cubic.last_sent_time); + } + else if (quicly_ctx->init_cc == &quicly_cc_reno_init) + { + s = format (s, " stash:%u", quicly_stats.cc.state.reno.stash); + } + return s; } @@ -2840,10 +2890,9 @@ done: } /* *INDENT-OFF* */ -VLIB_CLI_COMMAND (quic_plugin_crypto_command, static) = -{ +VLIB_CLI_COMMAND (quic_plugin_crypto_command, static) = { .path = "quic set crypto api", - .short_help = "quic set crypto api [picotls, vpp]", + .short_help = "quic set crypto api [picotls|vpp]", .function = quic_plugin_crypto_command_fn, }; VLIB_CLI_COMMAND(quic_plugin_set_fifo_size_command, static)= @@ -2870,6 +2919,11 @@ VLIB_CLI_COMMAND (quic_set_max_packets_per_key, static) = .short_help = "set quic max_packets_per_key 16777216", .function = quic_set_max_packets_per_key_fn, }; +VLIB_CLI_COMMAND (quic_set_cc, static) = { + .path = "set quic cc", + .short_help = "set quic cc [reno|cubic]", + .function = quic_set_cc_fn, +}; VLIB_PLUGIN_REGISTER () = { .version = VPP_BUILD_VER, |