a2bc88bb69
Type: improvement Change-Id: I7c9c91a9c4d3ac2499e42eedda0a5d395bdf5912 Signed-off-by: Dave Wallace <dwallacelf@gmail.com>
3028 lines
90 KiB
C
3028 lines
90 KiB
C
/*
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* Copyright (c) 2021 Cisco and/or its affiliates.
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at:
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include <sys/socket.h>
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#include <sys/syscall.h>
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#include <openssl/rand.h>
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#include <vnet/session/application.h>
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#include <vnet/session/transport.h>
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#include <vnet/session/session.h>
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#include <vlib/unix/plugin.h>
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#include <vpp/app/version.h>
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#include <vppinfra/lock.h>
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#include <quic/quic.h>
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#include <quic/certs.h>
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#include <quic/error.h>
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#include <quicly/constants.h>
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#include <quicly/defaults.h>
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#include <picotls.h>
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#include <quic/quic_crypto.h>
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extern quicly_crypto_engine_t quic_crypto_engine;
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static char *quic_error_strings[] = {
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#define quic_error(n,s) s,
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#include <quic/quic_error.def>
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#undef quic_error
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};
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#define DEFAULT_MAX_PACKETS_PER_KEY 16777216
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quic_main_t quic_main;
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static void quic_update_timer (quic_ctx_t * ctx);
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static void quic_check_quic_session_connected (quic_ctx_t * ctx);
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static int quic_reset_connection (u64 udp_session_handle,
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quic_rx_packet_ctx_t * pctx);
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static void quic_proto_on_close (u32 ctx_index, u32 thread_index);
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static quicly_stream_open_t on_stream_open;
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static quicly_closed_by_remote_t on_closed_by_remote;
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static quicly_now_t quicly_vpp_now_cb;
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/* Crypto contexts */
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static inline void
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quic_crypto_context_make_key_from_ctx (clib_bihash_kv_24_8_t * kv,
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quic_ctx_t * ctx)
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{
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application_t *app = application_get (ctx->parent_app_id);
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kv->key[0] = ((u64) ctx->ckpair_index) << 32 | (u64) ctx->crypto_engine;
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kv->key[1] = app->sm_properties.rx_fifo_size - 1;
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kv->key[2] = app->sm_properties.tx_fifo_size - 1;
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}
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static inline void
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quic_crypto_context_make_key_from_crctx (clib_bihash_kv_24_8_t * kv,
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crypto_context_t * crctx)
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{
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quic_crypto_context_data_t *data =
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(quic_crypto_context_data_t *) crctx->data;
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kv->key[0] = ((u64) crctx->ckpair_index) << 32 | (u64) crctx->crypto_engine;
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kv->key[1] = data->quicly_ctx.transport_params.max_stream_data.bidi_local;
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kv->key[2] = data->quicly_ctx.transport_params.max_stream_data.bidi_remote;
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}
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static void
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quic_crypto_context_free_if_needed (crypto_context_t * crctx, u8 thread_index)
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{
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quic_main_t *qm = &quic_main;
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clib_bihash_kv_24_8_t kv;
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if (crctx->n_subscribers)
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return;
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quic_crypto_context_make_key_from_crctx (&kv, crctx);
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clib_bihash_add_del_24_8 (&qm->wrk_ctx[thread_index].crypto_context_hash,
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&kv, 0 /* is_add */ );
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clib_mem_free (crctx->data);
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pool_put (qm->wrk_ctx[thread_index].crypto_ctx_pool, crctx);
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}
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static int
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quic_app_cert_key_pair_delete_callback (app_cert_key_pair_t * ckpair)
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{
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quic_main_t *qm = &quic_main;
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crypto_context_t *crctx;
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clib_bihash_kv_24_8_t kv;
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vlib_thread_main_t *vtm = vlib_get_thread_main ();
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int num_threads = 1 /* main thread */ + vtm->n_threads;
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int i;
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for (i = 0; i < num_threads; i++)
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{
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pool_foreach (crctx, qm->wrk_ctx[i].crypto_ctx_pool) {
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if (crctx->ckpair_index == ckpair->cert_key_index)
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{
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quic_crypto_context_make_key_from_crctx (&kv, crctx);
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clib_bihash_add_del_24_8 (&qm->wrk_ctx[i].crypto_context_hash, &kv, 0 /* is_add */ );
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}
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}
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}
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return 0;
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}
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static crypto_context_t *
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quic_crypto_context_alloc (u8 thread_index)
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{
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quic_main_t *qm = &quic_main;
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crypto_context_t *crctx;
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u32 idx;
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pool_get (qm->wrk_ctx[thread_index].crypto_ctx_pool, crctx);
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clib_memset (crctx, 0, sizeof (*crctx));
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idx = (crctx - qm->wrk_ctx[thread_index].crypto_ctx_pool);
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crctx->ctx_index = ((u32) thread_index) << 24 | idx;
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return crctx;
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}
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static crypto_context_t *
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quic_crypto_context_get (u32 cr_index, u32 thread_index)
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{
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quic_main_t *qm = &quic_main;
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ASSERT (cr_index >> 24 == thread_index);
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return pool_elt_at_index (qm->wrk_ctx[thread_index].crypto_ctx_pool,
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cr_index & 0x00ffffff);
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}
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static clib_error_t *
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quic_list_crypto_context_command_fn (vlib_main_t * vm,
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unformat_input_t * input,
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vlib_cli_command_t * cmd)
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{
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quic_main_t *qm = &quic_main;
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crypto_context_t *crctx;
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vlib_thread_main_t *vtm = vlib_get_thread_main ();
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int i, num_threads = 1 /* main thread */ + vtm->n_threads;
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for (i = 0; i < num_threads; i++)
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{
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pool_foreach (crctx, qm->wrk_ctx[i].crypto_ctx_pool) {
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vlib_cli_output (vm, "[%d][Q]%U", i, format_crypto_context, crctx);
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}
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}
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return 0;
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}
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static clib_error_t *
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quic_set_max_packets_per_key_fn (vlib_main_t * vm,
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unformat_input_t * input,
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vlib_cli_command_t * cmd)
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{
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quic_main_t *qm = &quic_main;
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unformat_input_t _line_input, *line_input = &_line_input;
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u64 tmp;
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if (!unformat_user (input, unformat_line_input, line_input))
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return 0;
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while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
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{
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if (unformat (line_input, "%U", unformat_memory_size, &tmp))
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{
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qm->max_packets_per_key = tmp;
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}
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else
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return clib_error_return (0, "unknown input '%U'",
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format_unformat_error, line_input);
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}
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return 0;
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}
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static clib_error_t *
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quic_set_cc_fn (vlib_main_t *vm, unformat_input_t *input,
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vlib_cli_command_t *cmd)
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{
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unformat_input_t _line_input, *line_input = &_line_input;
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quic_main_t *qm = &quic_main;
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clib_error_t *e = 0;
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if (!unformat_user (input, unformat_line_input, line_input))
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return 0;
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while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
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{
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if (unformat (line_input, "reno"))
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qm->default_quic_cc = QUIC_CC_RENO;
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else if (unformat (line_input, "cubic"))
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qm->default_quic_cc = QUIC_CC_CUBIC;
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else
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{
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e = clib_error_return (0, "unknown input '%U'",
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format_unformat_error, line_input);
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goto done;
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}
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}
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done:
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unformat_free (line_input);
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return e;
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}
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static void
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quic_release_crypto_context (u32 crypto_context_index, u8 thread_index)
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{
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crypto_context_t *crctx;
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crctx = quic_crypto_context_get (crypto_context_index, thread_index);
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crctx->n_subscribers--;
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quic_crypto_context_free_if_needed (crctx, thread_index);
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}
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static int
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quic_init_crypto_context (crypto_context_t * crctx, quic_ctx_t * ctx)
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{
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quic_main_t *qm = &quic_main;
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quicly_context_t *quicly_ctx;
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ptls_iovec_t key_vec;
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app_cert_key_pair_t *ckpair;
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application_t *app;
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quic_crypto_context_data_t *data;
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ptls_context_t *ptls_ctx;
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QUIC_DBG (2, "Init quic crctx %d thread %d", crctx->ctx_index,
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ctx->c_thread_index);
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data = clib_mem_alloc (sizeof (*data));
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/* picotls depends on data being zeroed */
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clib_memset (data, 0, sizeof (*data));
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crctx->data = (void *) data;
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quicly_ctx = &data->quicly_ctx;
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ptls_ctx = &data->ptls_ctx;
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ptls_ctx->random_bytes = ptls_openssl_random_bytes;
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ptls_ctx->get_time = &ptls_get_time;
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ptls_ctx->key_exchanges = ptls_openssl_key_exchanges;
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ptls_ctx->cipher_suites = qm->quic_ciphers[ctx->crypto_engine];
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ptls_ctx->certificates.list = NULL;
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ptls_ctx->certificates.count = 0;
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ptls_ctx->on_client_hello = NULL;
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ptls_ctx->emit_certificate = NULL;
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ptls_ctx->sign_certificate = NULL;
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ptls_ctx->verify_certificate = NULL;
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ptls_ctx->ticket_lifetime = 86400;
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ptls_ctx->max_early_data_size = 8192;
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ptls_ctx->hkdf_label_prefix__obsolete = NULL;
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ptls_ctx->require_dhe_on_psk = 1;
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ptls_ctx->encrypt_ticket = &qm->session_cache.super;
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clib_memcpy (quicly_ctx, &quicly_spec_context, sizeof (quicly_context_t));
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quicly_ctx->max_packets_per_key = qm->max_packets_per_key;
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quicly_ctx->tls = ptls_ctx;
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quicly_ctx->stream_open = &on_stream_open;
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quicly_ctx->closed_by_remote = &on_closed_by_remote;
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quicly_ctx->now = &quicly_vpp_now_cb;
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quicly_amend_ptls_context (quicly_ctx->tls);
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if (qm->vnet_crypto_enabled &&
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qm->default_crypto_engine == CRYPTO_ENGINE_VPP)
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quicly_ctx->crypto_engine = &quic_crypto_engine;
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else
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quicly_ctx->crypto_engine = &quicly_default_crypto_engine;
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quicly_ctx->transport_params.max_data = QUIC_INT_MAX;
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quicly_ctx->transport_params.max_streams_uni = (uint64_t) 1 << 60;
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quicly_ctx->transport_params.max_streams_bidi = (uint64_t) 1 << 60;
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quicly_ctx->transport_params.max_idle_timeout = qm->connection_timeout;
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if (qm->default_quic_cc == QUIC_CC_CUBIC)
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quicly_ctx->init_cc = &quicly_cc_cubic_init;
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else if (qm->default_quic_cc == QUIC_CC_RENO)
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quicly_ctx->init_cc = &quicly_cc_reno_init;
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app = application_get (ctx->parent_app_id);
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quicly_ctx->transport_params.max_stream_data.bidi_local =
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app->sm_properties.rx_fifo_size - 1;
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quicly_ctx->transport_params.max_stream_data.bidi_remote =
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app->sm_properties.tx_fifo_size - 1;
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quicly_ctx->transport_params.max_stream_data.uni = QUIC_INT_MAX;
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quicly_ctx->transport_params.max_udp_payload_size = QUIC_MAX_PACKET_SIZE;
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if (!app->quic_iv_set)
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{
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ptls_openssl_random_bytes (app->quic_iv, QUIC_IV_LEN - 1);
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app->quic_iv[QUIC_IV_LEN - 1] = 0;
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app->quic_iv_set = 1;
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}
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clib_memcpy (data->cid_key, app->quic_iv, QUIC_IV_LEN);
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key_vec = ptls_iovec_init (data->cid_key, QUIC_IV_LEN);
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quicly_ctx->cid_encryptor =
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quicly_new_default_cid_encryptor (&ptls_openssl_bfecb,
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&ptls_openssl_aes128ecb,
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&ptls_openssl_sha256, key_vec);
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ckpair = app_cert_key_pair_get_if_valid (crctx->ckpair_index);
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if (!ckpair || !ckpair->key || !ckpair->cert)
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{
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QUIC_DBG (1, "Wrong ckpair id %d\n", crctx->ckpair_index);
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return -1;
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}
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if (load_bio_private_key (quicly_ctx->tls, (char *) ckpair->key))
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{
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QUIC_DBG (1, "failed to read private key from app configuration\n");
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return -1;
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}
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if (load_bio_certificate_chain (quicly_ctx->tls, (char *) ckpair->cert))
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{
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QUIC_DBG (1, "failed to load certificate\n");
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return -1;
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}
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return 0;
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}
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static int
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quic_acquire_crypto_context (quic_ctx_t * ctx)
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{
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quic_main_t *qm = &quic_main;
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crypto_context_t *crctx;
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clib_bihash_kv_24_8_t kv;
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if (ctx->crypto_engine == CRYPTO_ENGINE_NONE)
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{
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QUIC_DBG (2, "No crypto engine specified, using %d",
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qm->default_crypto_engine);
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ctx->crypto_engine = qm->default_crypto_engine;
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}
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if (!clib_bitmap_get (qm->available_crypto_engines, ctx->crypto_engine))
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{
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QUIC_DBG (1, "Quic does not support crypto engine %d",
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ctx->crypto_engine);
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return SESSION_E_NOCRYPTOENG;
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}
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/* Check for exisiting crypto ctx */
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quic_crypto_context_make_key_from_ctx (&kv, ctx);
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if (clib_bihash_search_24_8
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(&qm->wrk_ctx[ctx->c_thread_index].crypto_context_hash, &kv, &kv) == 0)
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{
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crctx = quic_crypto_context_get (kv.value, ctx->c_thread_index);
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QUIC_DBG (2, "Found exisiting crypto context %d", kv.value);
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ctx->crypto_context_index = kv.value;
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crctx->n_subscribers++;
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return 0;
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}
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crctx = quic_crypto_context_alloc (ctx->c_thread_index);
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ctx->crypto_context_index = crctx->ctx_index;
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kv.value = crctx->ctx_index;
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crctx->crypto_engine = ctx->crypto_engine;
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crctx->ckpair_index = ctx->ckpair_index;
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if (quic_init_crypto_context (crctx, ctx))
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goto error;
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if (vnet_app_add_cert_key_interest (ctx->ckpair_index, qm->app_index))
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goto error;
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crctx->n_subscribers++;
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clib_bihash_add_del_24_8 (&qm->
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wrk_ctx[ctx->c_thread_index].crypto_context_hash,
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&kv, 1 /* is_add */ );
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return 0;
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error:
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quic_crypto_context_free_if_needed (crctx, ctx->c_thread_index);
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return SESSION_E_NOCRYPTOCKP;
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}
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/* Helper functions */
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static u32
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quic_ctx_alloc (u32 thread_index)
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{
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quic_main_t *qm = &quic_main;
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quic_ctx_t *ctx;
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pool_get_aligned_safe (qm->ctx_pool[thread_index], ctx,
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CLIB_CACHE_LINE_BYTES);
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clib_memset (ctx, 0, sizeof (quic_ctx_t));
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ctx->c_thread_index = thread_index;
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ctx->timer_handle = QUIC_TIMER_HANDLE_INVALID;
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QUIC_DBG (3, "Allocated quic_ctx %u on thread %u",
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ctx - qm->ctx_pool[thread_index], thread_index);
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return ctx - qm->ctx_pool[thread_index];
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}
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static void
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quic_ctx_free (quic_ctx_t * ctx)
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{
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QUIC_DBG (2, "Free ctx %u %x", ctx->c_thread_index, ctx->c_c_index);
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u32 thread_index = ctx->c_thread_index;
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QUIC_ASSERT (ctx->timer_handle == QUIC_TIMER_HANDLE_INVALID);
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if (CLIB_DEBUG)
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clib_memset (ctx, 0xfb, sizeof (*ctx));
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pool_put (quic_main.ctx_pool[thread_index], ctx);
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}
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|
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static quic_ctx_t *
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quic_ctx_get (u32 ctx_index, u32 thread_index)
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{
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return pool_elt_at_index (quic_main.ctx_pool[thread_index], ctx_index);
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}
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|
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static quic_ctx_t *
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quic_ctx_get_if_valid (u32 ctx_index, u32 thread_index)
|
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{
|
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if (pool_is_free_index (quic_main.ctx_pool[thread_index], ctx_index))
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return 0;
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return pool_elt_at_index (quic_main.ctx_pool[thread_index], ctx_index);
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}
|
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|
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quic_ctx_t *
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quic_get_conn_ctx (quicly_conn_t * conn)
|
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{
|
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u64 conn_data;
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conn_data = (u64) * quicly_get_data (conn);
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return quic_ctx_get (conn_data & UINT32_MAX, conn_data >> 32);
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}
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|
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static void
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quic_store_conn_ctx (quicly_conn_t * conn, quic_ctx_t * ctx)
|
|
{
|
|
*quicly_get_data (conn) =
|
|
(void *) (((u64) ctx->c_thread_index) << 32 | (u64) ctx->c_c_index);
|
|
}
|
|
|
|
static inline int
|
|
quic_ctx_is_stream (quic_ctx_t * ctx)
|
|
{
|
|
return (ctx->flags & QUIC_F_IS_STREAM);
|
|
}
|
|
|
|
static inline int
|
|
quic_ctx_is_listener (quic_ctx_t * ctx)
|
|
{
|
|
return (ctx->flags & QUIC_F_IS_LISTENER);
|
|
}
|
|
|
|
static inline int
|
|
quic_ctx_is_conn (quic_ctx_t * ctx)
|
|
{
|
|
return !(quic_ctx_is_listener (ctx) || quic_ctx_is_stream (ctx));
|
|
}
|
|
|
|
static inline session_t *
|
|
get_stream_session_and_ctx_from_stream (quicly_stream_t * stream,
|
|
quic_ctx_t ** ctx)
|
|
{
|
|
quic_stream_data_t *stream_data;
|
|
|
|
stream_data = (quic_stream_data_t *) stream->data;
|
|
*ctx = quic_ctx_get (stream_data->ctx_id, stream_data->thread_index);
|
|
return session_get ((*ctx)->c_s_index, stream_data->thread_index);
|
|
}
|
|
|
|
static inline void
|
|
quic_make_connection_key (clib_bihash_kv_16_8_t * kv,
|
|
const quicly_cid_plaintext_t * id)
|
|
{
|
|
kv->key[0] = ((u64) id->master_id) << 32 | (u64) id->thread_id;
|
|
kv->key[1] = id->node_id;
|
|
}
|
|
|
|
static int
|
|
quic_sendable_packet_count (session_t * udp_session)
|
|
{
|
|
u32 max_enqueue;
|
|
u32 packet_size = QUIC_MAX_PACKET_SIZE + SESSION_CONN_HDR_LEN;
|
|
max_enqueue = svm_fifo_max_enqueue (udp_session->tx_fifo);
|
|
return clib_min (max_enqueue / packet_size, QUIC_SEND_PACKET_VEC_SIZE);
|
|
}
|
|
|
|
static quicly_context_t *
|
|
quic_get_quicly_ctx_from_ctx (quic_ctx_t * ctx)
|
|
{
|
|
crypto_context_t *crctx =
|
|
quic_crypto_context_get (ctx->crypto_context_index, ctx->c_thread_index);
|
|
quic_crypto_context_data_t *data =
|
|
(quic_crypto_context_data_t *) crctx->data;
|
|
return &data->quicly_ctx;
|
|
}
|
|
|
|
static quicly_context_t *
|
|
quic_get_quicly_ctx_from_udp (u64 udp_session_handle)
|
|
{
|
|
session_t *udp_session = session_get_from_handle (udp_session_handle);
|
|
quic_ctx_t *ctx =
|
|
quic_ctx_get (udp_session->opaque, udp_session->thread_index);
|
|
return quic_get_quicly_ctx_from_ctx (ctx);
|
|
}
|
|
|
|
static inline void
|
|
quic_set_udp_tx_evt (session_t * udp_session)
|
|
{
|
|
int rv = 0;
|
|
if (svm_fifo_set_event (udp_session->tx_fifo))
|
|
rv = session_send_io_evt_to_thread (udp_session->tx_fifo,
|
|
SESSION_IO_EVT_TX);
|
|
if (PREDICT_FALSE (rv))
|
|
clib_warning ("Event enqueue errored %d", rv);
|
|
}
|
|
|
|
static inline void
|
|
quic_stop_ctx_timer (quic_ctx_t * ctx)
|
|
{
|
|
tw_timer_wheel_1t_3w_1024sl_ov_t *tw;
|
|
if (ctx->timer_handle == QUIC_TIMER_HANDLE_INVALID)
|
|
return;
|
|
tw = &quic_main.wrk_ctx[ctx->c_thread_index].timer_wheel;
|
|
tw_timer_stop_1t_3w_1024sl_ov (tw, ctx->timer_handle);
|
|
ctx->timer_handle = QUIC_TIMER_HANDLE_INVALID;
|
|
QUIC_DBG (4, "Stopping timer for ctx %u", ctx->c_c_index);
|
|
}
|
|
|
|
/* QUIC protocol actions */
|
|
|
|
static void
|
|
quic_ack_rx_data (session_t * stream_session)
|
|
{
|
|
u32 max_deq;
|
|
quic_ctx_t *sctx;
|
|
svm_fifo_t *f;
|
|
quicly_stream_t *stream;
|
|
quic_stream_data_t *stream_data;
|
|
|
|
sctx = quic_ctx_get (stream_session->connection_index,
|
|
stream_session->thread_index);
|
|
QUIC_ASSERT (quic_ctx_is_stream (sctx));
|
|
stream = sctx->stream;
|
|
stream_data = (quic_stream_data_t *) stream->data;
|
|
|
|
f = stream_session->rx_fifo;
|
|
max_deq = svm_fifo_max_dequeue (f);
|
|
|
|
QUIC_ASSERT (stream_data->app_rx_data_len >= max_deq);
|
|
quicly_stream_sync_recvbuf (stream, stream_data->app_rx_data_len - max_deq);
|
|
QUIC_DBG (3, "Acking %u bytes", stream_data->app_rx_data_len - max_deq);
|
|
stream_data->app_rx_data_len = max_deq;
|
|
}
|
|
|
|
static void
|
|
quic_disconnect_transport (quic_ctx_t * ctx)
|
|
{
|
|
QUIC_DBG (2, "Disconnecting transport 0x%lx", ctx->udp_session_handle);
|
|
vnet_disconnect_args_t a = {
|
|
.handle = ctx->udp_session_handle,
|
|
.app_index = quic_main.app_index,
|
|
};
|
|
|
|
if (vnet_disconnect_session (&a))
|
|
clib_warning ("UDP session 0x%lx disconnect errored",
|
|
ctx->udp_session_handle);
|
|
}
|
|
|
|
static void
|
|
quic_connection_delete (quic_ctx_t * ctx)
|
|
{
|
|
clib_bihash_kv_16_8_t kv;
|
|
quicly_conn_t *conn;
|
|
|
|
if (ctx->conn == NULL)
|
|
{
|
|
QUIC_DBG (2, "Skipping redundant delete of connection %u",
|
|
ctx->c_c_index);
|
|
return;
|
|
}
|
|
QUIC_DBG (2, "Deleting connection %u", ctx->c_c_index);
|
|
|
|
QUIC_ASSERT (!quic_ctx_is_stream (ctx));
|
|
quic_stop_ctx_timer (ctx);
|
|
|
|
/* Delete the connection from the connection map */
|
|
conn = ctx->conn;
|
|
ctx->conn = NULL;
|
|
quic_make_connection_key (&kv, quicly_get_master_id (conn));
|
|
QUIC_DBG (2, "Deleting conn with id %lu %lu from map", kv.key[0],
|
|
kv.key[1]);
|
|
clib_bihash_add_del_16_8 (&quic_main.connection_hash, &kv, 0 /* is_add */ );
|
|
|
|
quic_disconnect_transport (ctx);
|
|
|
|
if (conn)
|
|
quicly_free (conn);
|
|
session_transport_delete_notify (&ctx->connection);
|
|
}
|
|
|
|
void
|
|
quic_increment_counter (u8 evt, u8 val)
|
|
{
|
|
vlib_main_t *vm = vlib_get_main ();
|
|
vlib_node_increment_counter (vm, quic_input_node.index, evt, val);
|
|
}
|
|
|
|
/**
|
|
* Called when quicly return an error
|
|
* This function interacts tightly with quic_proto_on_close
|
|
*/
|
|
static void
|
|
quic_connection_closed (quic_ctx_t * ctx)
|
|
{
|
|
QUIC_DBG (2, "QUIC connection %u/%u closed", ctx->c_thread_index,
|
|
ctx->c_c_index);
|
|
|
|
/* TODO if connection is not established, just delete the session? */
|
|
/* Actually should send connect or accept error */
|
|
|
|
switch (ctx->conn_state)
|
|
{
|
|
case QUIC_CONN_STATE_READY:
|
|
/* Error on an opened connection (timeout...)
|
|
This puts the session in closing state, we should receive a notification
|
|
when the app has closed its session */
|
|
session_transport_reset_notify (&ctx->connection);
|
|
/* This ensures we delete the connection when the app confirms the close */
|
|
ctx->conn_state = QUIC_CONN_STATE_PASSIVE_CLOSING_QUIC_CLOSED;
|
|
break;
|
|
case QUIC_CONN_STATE_PASSIVE_CLOSING:
|
|
ctx->conn_state = QUIC_CONN_STATE_PASSIVE_CLOSING_QUIC_CLOSED;
|
|
/* quic_proto_on_close will eventually be called when the app confirms the close
|
|
, we delete the connection at that point */
|
|
break;
|
|
case QUIC_CONN_STATE_PASSIVE_CLOSING_APP_CLOSED:
|
|
/* App already confirmed close, we can delete the connection */
|
|
quic_connection_delete (ctx);
|
|
break;
|
|
case QUIC_CONN_STATE_OPENED:
|
|
case QUIC_CONN_STATE_HANDSHAKE:
|
|
case QUIC_CONN_STATE_ACTIVE_CLOSING:
|
|
quic_connection_delete (ctx);
|
|
break;
|
|
default:
|
|
QUIC_DBG (0, "BUG %d", ctx->conn_state);
|
|
break;
|
|
}
|
|
}
|
|
|
|
static int
|
|
quic_send_datagram (session_t *udp_session, struct iovec *packet,
|
|
quicly_address_t *dest, quicly_address_t *src)
|
|
{
|
|
u32 max_enqueue, len;
|
|
session_dgram_hdr_t hdr;
|
|
svm_fifo_t *f;
|
|
transport_connection_t *tc;
|
|
int ret;
|
|
|
|
len = packet->iov_len;
|
|
f = udp_session->tx_fifo;
|
|
tc = session_get_transport (udp_session);
|
|
max_enqueue = svm_fifo_max_enqueue (f);
|
|
if (max_enqueue < SESSION_CONN_HDR_LEN + len)
|
|
{
|
|
QUIC_ERR ("Too much data to send, max_enqueue %u, len %u",
|
|
max_enqueue, len + SESSION_CONN_HDR_LEN);
|
|
return QUIC_ERROR_FULL_FIFO;
|
|
}
|
|
|
|
/* Build packet header for fifo */
|
|
hdr.data_length = len;
|
|
hdr.data_offset = 0;
|
|
hdr.is_ip4 = tc->is_ip4;
|
|
clib_memcpy (&hdr.lcl_ip, &tc->lcl_ip, sizeof (ip46_address_t));
|
|
hdr.lcl_port = tc->lcl_port;
|
|
hdr.gso_size = 0;
|
|
|
|
/* Read dest address from quicly-provided sockaddr */
|
|
if (hdr.is_ip4)
|
|
{
|
|
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 (dest->sa.sa_family == AF_INET6);
|
|
struct sockaddr_in6 *sa6 = (struct sockaddr_in6 *) &dest->sa;
|
|
hdr.rmt_port = sa6->sin6_port;
|
|
clib_memcpy_fast (&hdr.rmt_ip.ip6, &sa6->sin6_addr, 16);
|
|
}
|
|
|
|
svm_fifo_seg_t segs[2] = { { (u8 *) &hdr, sizeof (hdr) },
|
|
{ packet->iov_base, len } };
|
|
|
|
ret = svm_fifo_enqueue_segments (f, segs, 2, 0 /* allow partial */);
|
|
if (PREDICT_FALSE (ret < 0))
|
|
{
|
|
QUIC_ERR ("Not enough space to enqueue dgram");
|
|
return QUIC_ERROR_FULL_FIFO;
|
|
}
|
|
|
|
quic_increment_counter (QUIC_ERROR_TX_PACKETS, 1);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
quic_send_packets (quic_ctx_t * ctx)
|
|
{
|
|
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;
|
|
u32 n_sent = 0;
|
|
int err = 0;
|
|
|
|
/* We have sctx, get qctx */
|
|
if (quic_ctx_is_stream (ctx))
|
|
ctx = quic_ctx_get (ctx->quic_connection_ctx_id, ctx->c_thread_index);
|
|
|
|
QUIC_ASSERT (!quic_ctx_is_stream (ctx));
|
|
|
|
udp_session = session_get_from_handle_if_valid (ctx->udp_session_handle);
|
|
if (!udp_session)
|
|
goto quicly_error;
|
|
|
|
conn = ctx->conn;
|
|
if (!conn)
|
|
return 0;
|
|
|
|
do
|
|
{
|
|
/* TODO : quicly can assert it can send min_packets up to 2 */
|
|
max_packets = quic_sendable_packet_count (udp_session);
|
|
if (max_packets < 2)
|
|
break;
|
|
|
|
num_packets = max_packets;
|
|
if ((err = quicly_send (conn, &ctx->rmt_ip, &ctx->lcl_ip, packets,
|
|
&num_packets, buf, sizeof (buf))))
|
|
goto quicly_error;
|
|
|
|
for (i = 0; i != num_packets; ++i)
|
|
{
|
|
|
|
if ((err = quic_send_datagram (udp_session, &packets[i],
|
|
&ctx->rmt_ip, &ctx->lcl_ip)))
|
|
goto quicly_error;
|
|
}
|
|
n_sent += num_packets;
|
|
}
|
|
while (num_packets > 0 && num_packets == max_packets);
|
|
|
|
quic_set_udp_tx_evt (udp_session);
|
|
|
|
QUIC_DBG (3, "%u[TX] %u[RX]", svm_fifo_max_dequeue (udp_session->tx_fifo),
|
|
svm_fifo_max_dequeue (udp_session->rx_fifo));
|
|
quic_update_timer (ctx);
|
|
return n_sent;
|
|
|
|
quicly_error:
|
|
if (err && err != QUICLY_ERROR_PACKET_IGNORED
|
|
&& err != QUICLY_ERROR_FREE_CONNECTION)
|
|
clib_warning ("Quic error '%U'.", quic_format_err, err);
|
|
quic_connection_closed (ctx);
|
|
return 0;
|
|
}
|
|
|
|
/* Quicly callbacks */
|
|
|
|
static void
|
|
quic_on_stream_destroy (quicly_stream_t * stream, int err)
|
|
{
|
|
quic_stream_data_t *stream_data = (quic_stream_data_t *) stream->data;
|
|
quic_ctx_t *sctx = quic_ctx_get (stream_data->ctx_id,
|
|
stream_data->thread_index);
|
|
QUIC_DBG (2, "DESTROYED_STREAM: session 0x%lx (%U)",
|
|
session_handle (stream_session), quic_format_err, err);
|
|
|
|
session_transport_closing_notify (&sctx->connection);
|
|
session_transport_delete_notify (&sctx->connection);
|
|
|
|
quic_increment_counter (QUIC_ERROR_CLOSED_STREAM, 1);
|
|
quic_ctx_free (sctx);
|
|
clib_mem_free (stream->data);
|
|
}
|
|
|
|
static void
|
|
quic_on_stop_sending (quicly_stream_t * stream, int err)
|
|
{
|
|
#if QUIC_DEBUG >= 2
|
|
quic_stream_data_t *stream_data = (quic_stream_data_t *) stream->data;
|
|
quic_ctx_t *sctx = quic_ctx_get (stream_data->ctx_id,
|
|
stream_data->thread_index);
|
|
session_t *stream_session = session_get (sctx->c_s_index,
|
|
sctx->c_thread_index);
|
|
clib_warning ("(NOT IMPLEMENTD) STOP_SENDING: session 0x%lx (%U)",
|
|
session_handle (stream_session), quic_format_err, err);
|
|
#endif
|
|
/* TODO : handle STOP_SENDING */
|
|
}
|
|
|
|
static void
|
|
quic_on_receive_reset (quicly_stream_t * stream, int err)
|
|
{
|
|
quic_stream_data_t *stream_data = (quic_stream_data_t *) stream->data;
|
|
quic_ctx_t *sctx = quic_ctx_get (stream_data->ctx_id,
|
|
stream_data->thread_index);
|
|
#if QUIC_DEBUG >= 2
|
|
session_t *stream_session = session_get (sctx->c_s_index,
|
|
sctx->c_thread_index);
|
|
clib_warning ("RESET_STREAM: session 0x%lx (%U)",
|
|
session_handle (stream_session), quic_format_err, err);
|
|
#endif
|
|
session_transport_closing_notify (&sctx->connection);
|
|
}
|
|
|
|
static void
|
|
quic_on_receive (quicly_stream_t * stream, size_t off, const void *src,
|
|
size_t len)
|
|
{
|
|
QUIC_DBG (3, "received data: %lu bytes, offset %lu", len, off);
|
|
u32 max_enq;
|
|
quic_ctx_t *sctx;
|
|
session_t *stream_session;
|
|
app_worker_t *app_wrk;
|
|
svm_fifo_t *f;
|
|
quic_stream_data_t *stream_data;
|
|
int rlen;
|
|
|
|
if (!len)
|
|
return;
|
|
|
|
stream_data = (quic_stream_data_t *) stream->data;
|
|
sctx = quic_ctx_get (stream_data->ctx_id, stream_data->thread_index);
|
|
stream_session = session_get (sctx->c_s_index, stream_data->thread_index);
|
|
f = stream_session->rx_fifo;
|
|
|
|
max_enq = svm_fifo_max_enqueue_prod (f);
|
|
QUIC_DBG (3, "Enqueuing %u at off %u in %u space", len, off, max_enq);
|
|
/* Handle duplicate packet/chunk from quicly */
|
|
if (off < stream_data->app_rx_data_len)
|
|
{
|
|
QUIC_DBG (3, "Session [idx %u, app_wrk %u, thread %u, rx-fifo 0x%llx]: "
|
|
"DUPLICATE PACKET (max_enq %u, len %u, "
|
|
"app_rx_data_len %u, off %u, ToBeNQ %u)",
|
|
stream_session->session_index,
|
|
stream_session->app_wrk_index,
|
|
stream_session->thread_index, f,
|
|
max_enq, len, stream_data->app_rx_data_len, off,
|
|
off - stream_data->app_rx_data_len + len);
|
|
return;
|
|
}
|
|
if (PREDICT_FALSE ((off - stream_data->app_rx_data_len + len) > max_enq))
|
|
{
|
|
QUIC_ERR ("Session [idx %u, app_wrk %u, thread %u, rx-fifo 0x%llx]: "
|
|
"RX FIFO IS FULL (max_enq %u, len %u, "
|
|
"app_rx_data_len %u, off %u, ToBeNQ %u)",
|
|
stream_session->session_index,
|
|
stream_session->app_wrk_index,
|
|
stream_session->thread_index, f,
|
|
max_enq, len, stream_data->app_rx_data_len, off,
|
|
off - stream_data->app_rx_data_len + len);
|
|
return; /* This shouldn't happen */
|
|
}
|
|
if (off == stream_data->app_rx_data_len)
|
|
{
|
|
/* Streams live on the same thread so (f, stream_data) should stay consistent */
|
|
rlen = svm_fifo_enqueue (f, len, (u8 *) src);
|
|
if (PREDICT_FALSE (rlen < 0))
|
|
{
|
|
/*
|
|
* drop, fifo full
|
|
* drop, fifo grow
|
|
*/
|
|
return;
|
|
}
|
|
QUIC_DBG (3, "Session [idx %u, app_wrk %u, ti %u, rx-fifo 0x%llx]: "
|
|
"Enqueuing %u (rlen %u) at off %u in %u space, ",
|
|
stream_session->session_index,
|
|
stream_session->app_wrk_index,
|
|
stream_session->thread_index, f, len, rlen, off, max_enq);
|
|
stream_data->app_rx_data_len += rlen;
|
|
QUIC_ASSERT (rlen >= len);
|
|
app_wrk = app_worker_get_if_valid (stream_session->app_wrk_index);
|
|
if (PREDICT_TRUE (app_wrk != 0))
|
|
{
|
|
app_worker_rx_notify (app_wrk, stream_session);
|
|
}
|
|
quic_ack_rx_data (stream_session);
|
|
}
|
|
else
|
|
{
|
|
rlen = svm_fifo_enqueue_with_offset (f,
|
|
off - stream_data->app_rx_data_len,
|
|
len, (u8 *) src);
|
|
if (PREDICT_FALSE (rlen < 0))
|
|
{
|
|
/*
|
|
* drop, fifo full
|
|
* drop, fifo grow
|
|
*/
|
|
return;
|
|
}
|
|
QUIC_ASSERT (rlen == 0);
|
|
}
|
|
return;
|
|
}
|
|
|
|
void
|
|
quic_fifo_egress_shift (quicly_stream_t * stream, size_t delta)
|
|
{
|
|
quic_stream_data_t *stream_data;
|
|
session_t *stream_session;
|
|
quic_ctx_t *ctx;
|
|
svm_fifo_t *f;
|
|
u32 rv;
|
|
|
|
stream_data = (quic_stream_data_t *) stream->data;
|
|
stream_session = get_stream_session_and_ctx_from_stream (stream, &ctx);
|
|
f = stream_session->tx_fifo;
|
|
|
|
QUIC_ASSERT (stream_data->app_tx_data_len >= delta);
|
|
stream_data->app_tx_data_len -= delta;
|
|
ctx->bytes_written += delta;
|
|
rv = svm_fifo_dequeue_drop (f, delta);
|
|
QUIC_ASSERT (rv == delta);
|
|
|
|
rv = quicly_stream_sync_sendbuf (stream, 0);
|
|
QUIC_ASSERT (!rv);
|
|
}
|
|
|
|
void
|
|
quic_fifo_egress_emit (quicly_stream_t * stream, size_t off, void *dst,
|
|
size_t * len, int *wrote_all)
|
|
{
|
|
quic_stream_data_t *stream_data;
|
|
quic_ctx_t *ctx;
|
|
session_t *stream_session;
|
|
svm_fifo_t *f;
|
|
u32 deq_max;
|
|
|
|
stream_data = (quic_stream_data_t *) stream->data;
|
|
stream_session = get_stream_session_and_ctx_from_stream (stream, &ctx);
|
|
f = stream_session->tx_fifo;
|
|
|
|
QUIC_DBG (3, "Emitting %u, offset %u", *len, off);
|
|
|
|
deq_max = svm_fifo_max_dequeue_cons (f);
|
|
QUIC_ASSERT (off <= deq_max);
|
|
if (off + *len < deq_max)
|
|
{
|
|
*wrote_all = 0;
|
|
}
|
|
else
|
|
{
|
|
*wrote_all = 1;
|
|
*len = deq_max - off;
|
|
}
|
|
QUIC_ASSERT (*len > 0);
|
|
|
|
if (off + *len > stream_data->app_tx_data_len)
|
|
stream_data->app_tx_data_len = off + *len;
|
|
|
|
svm_fifo_peek (f, off, *len, dst);
|
|
}
|
|
|
|
static const quicly_stream_callbacks_t quic_stream_callbacks = {
|
|
.on_destroy = quic_on_stream_destroy,
|
|
.on_send_shift = quic_fifo_egress_shift,
|
|
.on_send_emit = quic_fifo_egress_emit,
|
|
.on_send_stop = quic_on_stop_sending,
|
|
.on_receive = quic_on_receive,
|
|
.on_receive_reset = quic_on_receive_reset
|
|
};
|
|
|
|
static int
|
|
quic_on_stream_open (quicly_stream_open_t * self, quicly_stream_t * stream)
|
|
{
|
|
/* Return code for this function ends either
|
|
* - in quicly_receive : if not QUICLY_ERROR_PACKET_IGNORED, will close connection
|
|
* - in quicly_open_stream, returned directly
|
|
*/
|
|
|
|
session_t *stream_session, *quic_session;
|
|
quic_stream_data_t *stream_data;
|
|
app_worker_t *app_wrk;
|
|
quic_ctx_t *qctx, *sctx;
|
|
u32 sctx_id;
|
|
int rv;
|
|
|
|
QUIC_DBG (2, "on_stream_open called");
|
|
stream->data = clib_mem_alloc (sizeof (quic_stream_data_t));
|
|
stream->callbacks = &quic_stream_callbacks;
|
|
/* Notify accept on parent qsession, but only if this is not a locally
|
|
* initiated stream */
|
|
if (quicly_stream_is_self_initiated (stream))
|
|
return 0;
|
|
|
|
sctx_id = quic_ctx_alloc (vlib_get_thread_index ());
|
|
qctx = quic_get_conn_ctx (stream->conn);
|
|
|
|
/* Might need to signal that the connection is ready if the first thing the
|
|
* server does is open a stream */
|
|
quic_check_quic_session_connected (qctx);
|
|
/* ctx might be invalidated */
|
|
qctx = quic_get_conn_ctx (stream->conn);
|
|
|
|
stream_session = session_alloc (qctx->c_thread_index);
|
|
QUIC_DBG (2, "ACCEPTED stream_session 0x%lx ctx %u",
|
|
session_handle (stream_session), sctx_id);
|
|
sctx = quic_ctx_get (sctx_id, qctx->c_thread_index);
|
|
sctx->parent_app_wrk_id = qctx->parent_app_wrk_id;
|
|
sctx->parent_app_id = qctx->parent_app_id;
|
|
sctx->quic_connection_ctx_id = qctx->c_c_index;
|
|
sctx->c_c_index = sctx_id;
|
|
sctx->c_s_index = stream_session->session_index;
|
|
sctx->stream = stream;
|
|
sctx->c_flags |= TRANSPORT_CONNECTION_F_NO_LOOKUP;
|
|
sctx->flags |= QUIC_F_IS_STREAM;
|
|
sctx->crypto_context_index = qctx->crypto_context_index;
|
|
if (quicly_stream_is_unidirectional (stream->stream_id))
|
|
stream_session->flags |= SESSION_F_UNIDIRECTIONAL;
|
|
|
|
stream_data = (quic_stream_data_t *) stream->data;
|
|
stream_data->ctx_id = sctx_id;
|
|
stream_data->thread_index = sctx->c_thread_index;
|
|
stream_data->app_rx_data_len = 0;
|
|
stream_data->app_tx_data_len = 0;
|
|
|
|
sctx->c_s_index = stream_session->session_index;
|
|
stream_session->session_state = SESSION_STATE_CREATED;
|
|
stream_session->app_wrk_index = sctx->parent_app_wrk_id;
|
|
stream_session->connection_index = sctx->c_c_index;
|
|
stream_session->session_type =
|
|
session_type_from_proto_and_ip (TRANSPORT_PROTO_QUIC, qctx->udp_is_ip4);
|
|
quic_session = session_get (qctx->c_s_index, qctx->c_thread_index);
|
|
/* Make sure quic session is in listening state */
|
|
quic_session->session_state = SESSION_STATE_LISTENING;
|
|
stream_session->listener_handle = listen_session_get_handle (quic_session);
|
|
|
|
app_wrk = app_worker_get (stream_session->app_wrk_index);
|
|
if ((rv = app_worker_init_connected (app_wrk, stream_session)))
|
|
{
|
|
QUIC_ERR ("failed to allocate fifos");
|
|
quicly_reset_stream (stream, QUIC_APP_ALLOCATION_ERROR);
|
|
return 0; /* Frame is still valid */
|
|
}
|
|
svm_fifo_add_want_deq_ntf (stream_session->rx_fifo,
|
|
SVM_FIFO_WANT_DEQ_NOTIF_IF_FULL |
|
|
SVM_FIFO_WANT_DEQ_NOTIF_IF_EMPTY);
|
|
svm_fifo_init_ooo_lookup (stream_session->rx_fifo, 0 /* ooo enq */);
|
|
svm_fifo_init_ooo_lookup (stream_session->tx_fifo, 1 /* ooo deq */);
|
|
|
|
stream_session->session_state = SESSION_STATE_ACCEPTING;
|
|
if ((rv = app_worker_accept_notify (app_wrk, stream_session)))
|
|
{
|
|
QUIC_ERR ("failed to notify accept worker app");
|
|
quicly_reset_stream (stream, QUIC_APP_ACCEPT_NOTIFY_ERROR);
|
|
return 0; /* Frame is still valid */
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void
|
|
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
|
|
session_t *quic_session = session_get (ctx->c_s_index, ctx->c_thread_index);
|
|
clib_warning ("Session 0x%lx closed by peer (%U) %.*s ",
|
|
session_handle (quic_session), quic_format_err, code,
|
|
reason_len, reason);
|
|
#endif
|
|
ctx->conn_state = QUIC_CONN_STATE_PASSIVE_CLOSING;
|
|
session_transport_closing_notify (&ctx->connection);
|
|
}
|
|
|
|
/* Timer handling */
|
|
|
|
static int64_t
|
|
quic_get_thread_time (u8 thread_index)
|
|
{
|
|
return quic_main.wrk_ctx[thread_index].time_now;
|
|
}
|
|
|
|
static int64_t
|
|
quic_get_time (quicly_now_t * self)
|
|
{
|
|
u8 thread_index = vlib_get_thread_index ();
|
|
return quic_get_thread_time (thread_index);
|
|
}
|
|
|
|
static u32
|
|
quic_set_time_now (u32 thread_index)
|
|
{
|
|
vlib_main_t *vlib_main = vlib_get_main ();
|
|
f64 time = vlib_time_now (vlib_main);
|
|
quic_main.wrk_ctx[thread_index].time_now = (int64_t) (time * 1000.f);
|
|
return quic_main.wrk_ctx[thread_index].time_now;
|
|
}
|
|
|
|
/* Transport proto callback */
|
|
static void
|
|
quic_update_time (f64 now, u8 thread_index)
|
|
{
|
|
tw_timer_wheel_1t_3w_1024sl_ov_t *tw;
|
|
|
|
tw = &quic_main.wrk_ctx[thread_index].timer_wheel;
|
|
quic_set_time_now (thread_index);
|
|
tw_timer_expire_timers_1t_3w_1024sl_ov (tw, now);
|
|
}
|
|
|
|
static void
|
|
quic_timer_expired (u32 conn_index)
|
|
{
|
|
quic_ctx_t *ctx;
|
|
QUIC_DBG (4, "Timer expired for conn %u at %ld", conn_index,
|
|
quic_get_time (NULL));
|
|
ctx = quic_ctx_get (conn_index, vlib_get_thread_index ());
|
|
ctx->timer_handle = QUIC_TIMER_HANDLE_INVALID;
|
|
quic_send_packets (ctx);
|
|
}
|
|
|
|
static void
|
|
quic_update_timer (quic_ctx_t * ctx)
|
|
{
|
|
tw_timer_wheel_1t_3w_1024sl_ov_t *tw;
|
|
int64_t next_timeout, next_interval;
|
|
session_t *quic_session;
|
|
int rv;
|
|
|
|
/* This timeout is in ms which is the unit of our timer */
|
|
next_timeout = quicly_get_first_timeout (ctx->conn);
|
|
next_interval = next_timeout - quic_get_time (NULL);
|
|
|
|
if (next_timeout == 0 || next_interval <= 0)
|
|
{
|
|
if (ctx->c_s_index == QUIC_SESSION_INVALID)
|
|
{
|
|
next_interval = 1;
|
|
}
|
|
else
|
|
{
|
|
quic_session = session_get (ctx->c_s_index, ctx->c_thread_index);
|
|
if (svm_fifo_set_event (quic_session->tx_fifo))
|
|
{
|
|
rv = session_send_io_evt_to_thread_custom (
|
|
quic_session, quic_session->thread_index, SESSION_IO_EVT_TX);
|
|
if (PREDICT_FALSE (rv))
|
|
QUIC_ERR ("Failed to enqueue builtin_tx %d", rv);
|
|
}
|
|
return;
|
|
}
|
|
}
|
|
|
|
ASSERT (vlib_get_thread_index () == ctx->c_thread_index ||
|
|
vlib_get_thread_index () == 0);
|
|
tw = &quic_main.wrk_ctx[ctx->c_thread_index].timer_wheel;
|
|
|
|
QUIC_DBG (4, "Timer set to %ld (int %ld) for ctx %u", next_timeout,
|
|
next_interval, ctx->c_c_index);
|
|
|
|
if (ctx->timer_handle == QUIC_TIMER_HANDLE_INVALID)
|
|
{
|
|
if (next_timeout == INT64_MAX)
|
|
{
|
|
QUIC_DBG (4, "timer for ctx %u already stopped", ctx->c_c_index);
|
|
return;
|
|
}
|
|
ctx->timer_handle = tw_timer_start_1t_3w_1024sl_ov (tw, ctx->c_c_index,
|
|
0, next_interval);
|
|
}
|
|
else
|
|
{
|
|
if (next_timeout == INT64_MAX)
|
|
{
|
|
quic_stop_ctx_timer (ctx);
|
|
}
|
|
else
|
|
tw_timer_update_1t_3w_1024sl_ov (tw, ctx->timer_handle,
|
|
next_interval);
|
|
}
|
|
return;
|
|
}
|
|
|
|
static void
|
|
quic_expired_timers_dispatch (u32 * expired_timers)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < vec_len (expired_timers); i++)
|
|
{
|
|
quic_timer_expired (expired_timers[i]);
|
|
}
|
|
}
|
|
|
|
/* Transport proto functions */
|
|
static int
|
|
quic_connect_stream (session_t * quic_session, session_endpoint_cfg_t * sep)
|
|
{
|
|
uint64_t quic_session_handle;
|
|
session_t *stream_session;
|
|
quic_stream_data_t *stream_data;
|
|
quicly_stream_t *stream;
|
|
quicly_conn_t *conn;
|
|
app_worker_t *app_wrk;
|
|
quic_ctx_t *qctx, *sctx;
|
|
u32 sctx_index;
|
|
u8 is_unidir;
|
|
int rv;
|
|
|
|
/* Find base session to which the user want to attach a stream */
|
|
quic_session_handle = session_handle (quic_session);
|
|
QUIC_DBG (2, "Opening new stream (qsession %u)", quic_session_handle);
|
|
|
|
if (session_type_transport_proto (quic_session->session_type) !=
|
|
TRANSPORT_PROTO_QUIC)
|
|
{
|
|
QUIC_ERR ("received incompatible session");
|
|
return -1;
|
|
}
|
|
|
|
app_wrk = app_worker_get_if_valid (quic_session->app_wrk_index);
|
|
if (!app_wrk)
|
|
{
|
|
QUIC_ERR ("Invalid app worker :(");
|
|
return -1;
|
|
}
|
|
|
|
sctx_index = quic_ctx_alloc (quic_session->thread_index); /* Allocate before we get pointers */
|
|
sctx = quic_ctx_get (sctx_index, quic_session->thread_index);
|
|
qctx = quic_ctx_get (quic_session->connection_index,
|
|
quic_session->thread_index);
|
|
if (quic_ctx_is_stream (qctx))
|
|
{
|
|
QUIC_ERR ("session is a stream");
|
|
quic_ctx_free (sctx);
|
|
return -1;
|
|
}
|
|
|
|
sctx->parent_app_wrk_id = qctx->parent_app_wrk_id;
|
|
sctx->parent_app_id = qctx->parent_app_id;
|
|
sctx->quic_connection_ctx_id = qctx->c_c_index;
|
|
sctx->c_c_index = sctx_index;
|
|
sctx->c_flags |= TRANSPORT_CONNECTION_F_NO_LOOKUP;
|
|
sctx->flags |= QUIC_F_IS_STREAM;
|
|
|
|
conn = qctx->conn;
|
|
|
|
if (!conn || !quicly_connection_is_ready (conn))
|
|
return -1;
|
|
|
|
is_unidir = sep->transport_flags & TRANSPORT_CFG_F_UNIDIRECTIONAL;
|
|
if ((rv = quicly_open_stream (conn, &stream, is_unidir)))
|
|
{
|
|
QUIC_DBG (2, "Stream open failed with %d", rv);
|
|
return -1;
|
|
}
|
|
quic_increment_counter (QUIC_ERROR_OPENED_STREAM, 1);
|
|
|
|
sctx->stream = stream;
|
|
sctx->crypto_context_index = qctx->crypto_context_index;
|
|
|
|
QUIC_DBG (2, "Opened stream %d, creating session", stream->stream_id);
|
|
|
|
stream_session = session_alloc (qctx->c_thread_index);
|
|
QUIC_DBG (2, "Allocated stream_session 0x%lx ctx %u",
|
|
session_handle (stream_session), sctx_index);
|
|
stream_session->app_wrk_index = app_wrk->wrk_index;
|
|
stream_session->connection_index = sctx_index;
|
|
stream_session->listener_handle = quic_session_handle;
|
|
stream_session->session_type =
|
|
session_type_from_proto_and_ip (TRANSPORT_PROTO_QUIC, qctx->udp_is_ip4);
|
|
if (is_unidir)
|
|
stream_session->flags |= SESSION_F_UNIDIRECTIONAL;
|
|
|
|
sctx->c_s_index = stream_session->session_index;
|
|
stream_data = (quic_stream_data_t *) stream->data;
|
|
stream_data->ctx_id = sctx->c_c_index;
|
|
stream_data->thread_index = sctx->c_thread_index;
|
|
stream_data->app_rx_data_len = 0;
|
|
stream_data->app_tx_data_len = 0;
|
|
stream_session->session_state = SESSION_STATE_READY;
|
|
stream_session->opaque = sep->opaque;
|
|
|
|
/* For now we only reset streams. Cleanup will be triggered by timers */
|
|
if ((rv = app_worker_init_connected (app_wrk, stream_session)))
|
|
{
|
|
QUIC_ERR ("failed to app_worker_init_connected");
|
|
quicly_reset_stream (stream, QUIC_APP_CONNECT_NOTIFY_ERROR);
|
|
return app_worker_connect_notify (app_wrk, NULL, rv, sep->opaque);
|
|
}
|
|
|
|
svm_fifo_init_ooo_lookup (stream_session->rx_fifo, 0 /* ooo enq */);
|
|
svm_fifo_init_ooo_lookup (stream_session->tx_fifo, 1 /* ooo deq */);
|
|
svm_fifo_add_want_deq_ntf (stream_session->rx_fifo,
|
|
SVM_FIFO_WANT_DEQ_NOTIF_IF_FULL |
|
|
SVM_FIFO_WANT_DEQ_NOTIF_IF_EMPTY);
|
|
|
|
if (app_worker_connect_notify (app_wrk, stream_session, SESSION_E_NONE,
|
|
sep->opaque))
|
|
{
|
|
QUIC_ERR ("failed to notify app");
|
|
quic_increment_counter (QUIC_ERROR_CLOSED_STREAM, 1);
|
|
quicly_reset_stream (stream, QUIC_APP_CONNECT_NOTIFY_ERROR);
|
|
return -1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
quic_connect_connection (session_endpoint_cfg_t * sep)
|
|
{
|
|
vnet_connect_args_t _cargs, *cargs = &_cargs;
|
|
transport_endpt_crypto_cfg_t *ccfg;
|
|
quic_main_t *qm = &quic_main;
|
|
u32 ctx_index, thread_index;
|
|
quic_ctx_t *ctx;
|
|
app_worker_t *app_wrk;
|
|
application_t *app;
|
|
transport_endpt_ext_cfg_t *ext_cfg;
|
|
int error;
|
|
|
|
ext_cfg = session_endpoint_get_ext_cfg (sep, TRANSPORT_ENDPT_EXT_CFG_CRYPTO);
|
|
if (!ext_cfg)
|
|
return SESSION_E_NOEXTCFG;
|
|
|
|
/* Use pool on thread 1 if we have workers because of UDP */
|
|
thread_index = transport_cl_thread ();
|
|
ccfg = &ext_cfg->crypto;
|
|
|
|
clib_memset (cargs, 0, sizeof (*cargs));
|
|
ctx_index = quic_ctx_alloc (thread_index);
|
|
ctx = quic_ctx_get (ctx_index, thread_index);
|
|
ctx->parent_app_wrk_id = sep->app_wrk_index;
|
|
ctx->c_s_index = QUIC_SESSION_INVALID;
|
|
ctx->c_c_index = ctx_index;
|
|
ctx->udp_is_ip4 = sep->is_ip4;
|
|
ctx->timer_handle = QUIC_TIMER_HANDLE_INVALID;
|
|
ctx->conn_state = QUIC_CONN_STATE_HANDSHAKE;
|
|
ctx->client_opaque = sep->opaque;
|
|
ctx->c_flags |= TRANSPORT_CONNECTION_F_NO_LOOKUP;
|
|
if (ccfg->hostname[0])
|
|
ctx->srv_hostname = format (0, "%s", ccfg->hostname);
|
|
else
|
|
/* needed by quic for crypto + determining client / server */
|
|
ctx->srv_hostname = format (0, "%U", format_ip46_address,
|
|
&sep->ip, sep->is_ip4);
|
|
vec_terminate_c_string (ctx->srv_hostname);
|
|
|
|
clib_memcpy (&cargs->sep_ext, sep, sizeof (session_endpoint_cfg_t));
|
|
cargs->sep.transport_proto = TRANSPORT_PROTO_UDP;
|
|
cargs->app_index = qm->app_index;
|
|
cargs->api_context = ctx_index;
|
|
|
|
app_wrk = app_worker_get (sep->app_wrk_index);
|
|
app = application_get (app_wrk->app_index);
|
|
ctx->parent_app_id = app_wrk->app_index;
|
|
cargs->sep_ext.ns_index = app->ns_index;
|
|
cargs->sep_ext.transport_flags = TRANSPORT_CFG_F_CONNECTED;
|
|
|
|
ctx->crypto_engine = ccfg->crypto_engine;
|
|
ctx->ckpair_index = ccfg->ckpair_index;
|
|
if ((error = quic_acquire_crypto_context (ctx)))
|
|
return error;
|
|
|
|
if ((error = vnet_connect (cargs)))
|
|
return error;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
quic_connect (transport_endpoint_cfg_t * tep)
|
|
{
|
|
QUIC_DBG (2, "Called quic_connect");
|
|
session_endpoint_cfg_t *sep = (session_endpoint_cfg_t *) tep;
|
|
session_t *quic_session;
|
|
sep = (session_endpoint_cfg_t *) tep;
|
|
|
|
quic_session = session_get_from_handle_if_valid (sep->parent_handle);
|
|
if (quic_session)
|
|
return quic_connect_stream (quic_session, sep);
|
|
else
|
|
return quic_connect_connection (sep);
|
|
}
|
|
|
|
static void
|
|
quic_proto_on_close (u32 ctx_index, u32 thread_index)
|
|
{
|
|
int err;
|
|
quic_ctx_t *ctx = quic_ctx_get_if_valid (ctx_index, thread_index);
|
|
if (!ctx)
|
|
return;
|
|
session_t *stream_session = session_get (ctx->c_s_index,
|
|
ctx->c_thread_index);
|
|
#if QUIC_DEBUG >= 2
|
|
clib_warning ("Closing session 0x%lx", session_handle (stream_session));
|
|
#endif
|
|
if (quic_ctx_is_stream (ctx))
|
|
{
|
|
quicly_stream_t *stream = ctx->stream;
|
|
if (!quicly_stream_has_send_side (quicly_is_client (stream->conn),
|
|
stream->stream_id))
|
|
return;
|
|
quicly_sendstate_shutdown (&stream->sendstate, ctx->bytes_written +
|
|
svm_fifo_max_dequeue
|
|
(stream_session->tx_fifo));
|
|
err = quicly_stream_sync_sendbuf (stream, 1);
|
|
if (err)
|
|
{
|
|
QUIC_DBG (1, "sendstate_shutdown failed for stream session %lu",
|
|
session_handle (stream_session));
|
|
quicly_reset_stream (stream, QUIC_APP_ERROR_CLOSE_NOTIFY);
|
|
}
|
|
quic_send_packets (ctx);
|
|
return;
|
|
}
|
|
|
|
switch (ctx->conn_state)
|
|
{
|
|
case QUIC_CONN_STATE_OPENED:
|
|
case QUIC_CONN_STATE_HANDSHAKE:
|
|
case QUIC_CONN_STATE_READY:
|
|
ctx->conn_state = QUIC_CONN_STATE_ACTIVE_CLOSING;
|
|
quicly_conn_t *conn = ctx->conn;
|
|
/* Start connection closing. Keep sending packets until quicly_send
|
|
returns QUICLY_ERROR_FREE_CONNECTION */
|
|
|
|
quic_increment_counter (QUIC_ERROR_CLOSED_CONNECTION, 1);
|
|
quicly_close (conn, QUIC_APP_ERROR_CLOSE_NOTIFY, "Closed by peer");
|
|
/* This also causes all streams to be closed (and the cb called) */
|
|
quic_send_packets (ctx);
|
|
break;
|
|
case QUIC_CONN_STATE_PASSIVE_CLOSING:
|
|
ctx->conn_state = QUIC_CONN_STATE_PASSIVE_CLOSING_APP_CLOSED;
|
|
/* send_packets will eventually return an error, we delete the conn at
|
|
that point */
|
|
break;
|
|
case QUIC_CONN_STATE_PASSIVE_CLOSING_QUIC_CLOSED:
|
|
quic_connection_delete (ctx);
|
|
break;
|
|
case QUIC_CONN_STATE_ACTIVE_CLOSING:
|
|
break;
|
|
default:
|
|
QUIC_ERR ("Trying to close conn in state %d", ctx->conn_state);
|
|
break;
|
|
}
|
|
}
|
|
|
|
static u32
|
|
quic_start_listen (u32 quic_listen_session_index,
|
|
transport_endpoint_cfg_t *tep)
|
|
{
|
|
vnet_listen_args_t _bargs, *args = &_bargs;
|
|
transport_endpt_crypto_cfg_t *ccfg;
|
|
quic_main_t *qm = &quic_main;
|
|
session_handle_t udp_handle;
|
|
session_endpoint_cfg_t *sep;
|
|
session_t *udp_listen_session;
|
|
app_worker_t *app_wrk;
|
|
application_t *app;
|
|
quic_ctx_t *lctx;
|
|
u32 lctx_index;
|
|
app_listener_t *app_listener;
|
|
transport_endpt_ext_cfg_t *ext_cfg;
|
|
int rv;
|
|
|
|
sep = (session_endpoint_cfg_t *) tep;
|
|
ext_cfg = session_endpoint_get_ext_cfg (sep, TRANSPORT_ENDPT_EXT_CFG_CRYPTO);
|
|
if (!ext_cfg)
|
|
return SESSION_E_NOEXTCFG;
|
|
|
|
ccfg = &ext_cfg->crypto;
|
|
app_wrk = app_worker_get (sep->app_wrk_index);
|
|
app = application_get (app_wrk->app_index);
|
|
QUIC_DBG (2, "Called quic_start_listen for app %d", app_wrk->app_index);
|
|
|
|
clib_memset (args, 0, sizeof (*args));
|
|
args->app_index = qm->app_index;
|
|
args->sep_ext = *sep;
|
|
args->sep_ext.ns_index = app->ns_index;
|
|
args->sep_ext.transport_proto = TRANSPORT_PROTO_UDP;
|
|
args->sep_ext.transport_flags = TRANSPORT_CFG_F_CONNECTED;
|
|
if ((rv = vnet_listen (args)))
|
|
return rv;
|
|
|
|
lctx_index = quic_ctx_alloc (0);
|
|
udp_handle = args->handle;
|
|
app_listener = app_listener_get_w_handle (udp_handle);
|
|
udp_listen_session = app_listener_get_session (app_listener);
|
|
udp_listen_session->opaque = lctx_index;
|
|
|
|
lctx = quic_ctx_get (lctx_index, 0);
|
|
lctx->flags |= QUIC_F_IS_LISTENER;
|
|
|
|
clib_memcpy (&lctx->c_rmt_ip, &args->sep.peer.ip, sizeof (ip46_address_t));
|
|
clib_memcpy (&lctx->c_lcl_ip, &args->sep.ip, sizeof (ip46_address_t));
|
|
lctx->c_rmt_port = args->sep.peer.port;
|
|
lctx->c_lcl_port = args->sep.port;
|
|
lctx->c_is_ip4 = args->sep.is_ip4;
|
|
lctx->c_fib_index = args->sep.fib_index;
|
|
lctx->c_proto = TRANSPORT_PROTO_QUIC;
|
|
lctx->parent_app_wrk_id = sep->app_wrk_index;
|
|
lctx->parent_app_id = app_wrk->app_index;
|
|
lctx->udp_session_handle = udp_handle;
|
|
lctx->c_s_index = quic_listen_session_index;
|
|
lctx->crypto_engine = ccfg->crypto_engine;
|
|
lctx->ckpair_index = ccfg->ckpair_index;
|
|
if ((rv = quic_acquire_crypto_context (lctx)))
|
|
return rv;
|
|
|
|
QUIC_DBG (2, "Listening UDP session 0x%lx",
|
|
session_handle (udp_listen_session));
|
|
QUIC_DBG (2, "Listening QUIC session 0x%lx", quic_listen_session_index);
|
|
return lctx_index;
|
|
}
|
|
|
|
static u32
|
|
quic_stop_listen (u32 lctx_index)
|
|
{
|
|
QUIC_DBG (2, "Called quic_stop_listen");
|
|
quic_ctx_t *lctx;
|
|
lctx = quic_ctx_get (lctx_index, 0);
|
|
QUIC_ASSERT (quic_ctx_is_listener (lctx));
|
|
vnet_unlisten_args_t a = {
|
|
.handle = lctx->udp_session_handle,
|
|
.app_index = quic_main.app_index,
|
|
.wrk_map_index = 0 /* default wrk */
|
|
};
|
|
if (vnet_unlisten (&a))
|
|
clib_warning ("unlisten errored");
|
|
|
|
quic_release_crypto_context (lctx->crypto_context_index,
|
|
0 /* thread_index */ );
|
|
quic_ctx_free (lctx);
|
|
return 0;
|
|
}
|
|
|
|
static transport_connection_t *
|
|
quic_connection_get (u32 ctx_index, u32 thread_index)
|
|
{
|
|
quic_ctx_t *ctx;
|
|
ctx = quic_ctx_get (ctx_index, thread_index);
|
|
return &ctx->connection;
|
|
}
|
|
|
|
static transport_connection_t *
|
|
quic_listener_get (u32 listener_index)
|
|
{
|
|
QUIC_DBG (2, "Called quic_listener_get");
|
|
quic_ctx_t *ctx;
|
|
ctx = quic_ctx_get (listener_index, 0);
|
|
return &ctx->connection;
|
|
}
|
|
|
|
static u8 *
|
|
format_quic_ctx (u8 * s, va_list * args)
|
|
{
|
|
quic_ctx_t *ctx = va_arg (*args, quic_ctx_t *);
|
|
u32 verbose = va_arg (*args, u32);
|
|
u8 *str = 0;
|
|
|
|
if (!ctx)
|
|
return s;
|
|
str = format (str, "[%d:%d][Q] ", ctx->c_thread_index, ctx->c_s_index);
|
|
|
|
if (quic_ctx_is_listener (ctx))
|
|
str = format (str, "Listener, UDP %ld", ctx->udp_session_handle);
|
|
else if (quic_ctx_is_stream (ctx))
|
|
str = format (str, "Stream %ld conn %d",
|
|
ctx->stream->stream_id, ctx->quic_connection_ctx_id);
|
|
else /* connection */
|
|
str = format (str, "Conn %d UDP %d", ctx->c_c_index,
|
|
ctx->udp_session_handle);
|
|
|
|
str = format (str, " app %d wrk %d", ctx->parent_app_id,
|
|
ctx->parent_app_wrk_id);
|
|
|
|
if (verbose == 1)
|
|
s = format (s, "%-" SESSION_CLI_ID_LEN "s%-" SESSION_CLI_STATE_LEN "d",
|
|
str, ctx->conn_state);
|
|
else
|
|
s = format (s, "%s\n", str);
|
|
vec_free (str);
|
|
return s;
|
|
}
|
|
|
|
static u8 *
|
|
format_quic_connection (u8 * s, va_list * args)
|
|
{
|
|
u32 qc_index = va_arg (*args, u32);
|
|
u32 thread_index = va_arg (*args, u32);
|
|
u32 verbose = va_arg (*args, u32);
|
|
quic_ctx_t *ctx = quic_ctx_get (qc_index, thread_index);
|
|
s = format (s, "%U", format_quic_ctx, ctx, verbose);
|
|
return s;
|
|
}
|
|
|
|
static u8 *
|
|
format_quic_half_open (u8 * s, va_list * args)
|
|
{
|
|
u32 qc_index = va_arg (*args, u32);
|
|
u32 thread_index = va_arg (*args, u32);
|
|
quic_ctx_t *ctx = quic_ctx_get (qc_index, thread_index);
|
|
s = format (s, "[#%d][Q] half-open app %u", thread_index,
|
|
ctx->parent_app_id);
|
|
return s;
|
|
}
|
|
|
|
/* TODO improve */
|
|
static u8 *
|
|
format_quic_listener (u8 * s, va_list * args)
|
|
{
|
|
u32 tci = va_arg (*args, u32);
|
|
u32 thread_index = va_arg (*args, u32);
|
|
u32 verbose = va_arg (*args, u32);
|
|
quic_ctx_t *ctx = quic_ctx_get (tci, thread_index);
|
|
s = format (s, "%U", format_quic_ctx, ctx, verbose);
|
|
return s;
|
|
}
|
|
|
|
/* Session layer callbacks */
|
|
|
|
static inline void
|
|
quic_build_sockaddr (struct sockaddr *sa, socklen_t * salen,
|
|
ip46_address_t * addr, u16 port, u8 is_ip4)
|
|
{
|
|
if (is_ip4)
|
|
{
|
|
struct sockaddr_in *sa4 = (struct sockaddr_in *) sa;
|
|
sa4->sin_family = AF_INET;
|
|
sa4->sin_port = port;
|
|
sa4->sin_addr.s_addr = addr->ip4.as_u32;
|
|
*salen = sizeof (struct sockaddr_in);
|
|
}
|
|
else
|
|
{
|
|
struct sockaddr_in6 *sa6 = (struct sockaddr_in6 *) sa;
|
|
sa6->sin6_family = AF_INET6;
|
|
sa6->sin6_port = port;
|
|
clib_memcpy (&sa6->sin6_addr, &addr->ip6, 16);
|
|
*salen = sizeof (struct sockaddr_in6);
|
|
}
|
|
}
|
|
|
|
static void
|
|
quic_on_quic_session_connected (quic_ctx_t * ctx)
|
|
{
|
|
session_t *quic_session;
|
|
app_worker_t *app_wrk;
|
|
u32 ctx_id = ctx->c_c_index;
|
|
u32 thread_index = ctx->c_thread_index;
|
|
int rv;
|
|
|
|
quic_session = session_alloc (thread_index);
|
|
|
|
QUIC_DBG (2, "Allocated quic session 0x%lx", session_handle (quic_session));
|
|
ctx->c_s_index = quic_session->session_index;
|
|
quic_session->app_wrk_index = ctx->parent_app_wrk_id;
|
|
quic_session->connection_index = ctx->c_c_index;
|
|
quic_session->listener_handle = SESSION_INVALID_HANDLE;
|
|
quic_session->session_type =
|
|
session_type_from_proto_and_ip (TRANSPORT_PROTO_QUIC, ctx->udp_is_ip4);
|
|
|
|
/* If quic session connected fails, immediatly close connection */
|
|
app_wrk = app_worker_get (ctx->parent_app_wrk_id);
|
|
if ((rv = app_worker_init_connected (app_wrk, quic_session)))
|
|
{
|
|
QUIC_ERR ("failed to app_worker_init_connected");
|
|
quic_proto_on_close (ctx_id, thread_index);
|
|
app_worker_connect_notify (app_wrk, NULL, rv, ctx->client_opaque);
|
|
return;
|
|
}
|
|
|
|
svm_fifo_init_ooo_lookup (quic_session->rx_fifo, 0 /* ooo enq */);
|
|
svm_fifo_init_ooo_lookup (quic_session->tx_fifo, 1 /* ooo deq */);
|
|
|
|
quic_session->session_state = SESSION_STATE_CONNECTING;
|
|
if ((rv = app_worker_connect_notify (app_wrk, quic_session,
|
|
SESSION_E_NONE, ctx->client_opaque)))
|
|
{
|
|
QUIC_ERR ("failed to notify app %d", rv);
|
|
quic_proto_on_close (ctx_id, thread_index);
|
|
return;
|
|
}
|
|
}
|
|
|
|
static void
|
|
quic_check_quic_session_connected (quic_ctx_t * ctx)
|
|
{
|
|
/* Called when we need to trigger quic session connected
|
|
* we may call this function on the server side / at
|
|
* stream opening */
|
|
|
|
/* Conn may be set to null if the connection is terminated */
|
|
if (!ctx->conn || ctx->conn_state != QUIC_CONN_STATE_HANDSHAKE)
|
|
return;
|
|
if (!quicly_connection_is_ready (ctx->conn))
|
|
return;
|
|
ctx->conn_state = QUIC_CONN_STATE_READY;
|
|
if (!quicly_is_client (ctx->conn))
|
|
return;
|
|
quic_on_quic_session_connected (ctx);
|
|
}
|
|
|
|
static inline void
|
|
quic_update_conn_ctx (quicly_conn_t * conn, quicly_context_t * quicly_context)
|
|
{
|
|
/* we need to update the quicly_conn on migrate
|
|
* as it contains a pointer to the crypto context */
|
|
ptls_context_t **tls;
|
|
quicly_context_t **_quicly_context;
|
|
_quicly_context = (quicly_context_t **) conn;
|
|
*_quicly_context = quicly_context;
|
|
tls = (ptls_context_t **) quicly_get_tls (conn);
|
|
*tls = quicly_context->tls;
|
|
}
|
|
|
|
static void
|
|
quic_receive_connection (void *arg)
|
|
{
|
|
u32 new_ctx_id, thread_index = vlib_get_thread_index ();
|
|
quic_ctx_t *temp_ctx, *new_ctx;
|
|
clib_bihash_kv_16_8_t kv;
|
|
quicly_conn_t *conn;
|
|
quicly_context_t *quicly_context;
|
|
session_t *udp_session;
|
|
|
|
temp_ctx = arg;
|
|
new_ctx_id = quic_ctx_alloc (thread_index);
|
|
new_ctx = quic_ctx_get (new_ctx_id, thread_index);
|
|
|
|
QUIC_DBG (2, "Received conn %u (now %u)", temp_ctx->c_thread_index,
|
|
new_ctx_id);
|
|
|
|
clib_memcpy (new_ctx, temp_ctx, sizeof (quic_ctx_t));
|
|
clib_mem_free (temp_ctx);
|
|
|
|
new_ctx->c_thread_index = thread_index;
|
|
new_ctx->c_c_index = new_ctx_id;
|
|
quic_acquire_crypto_context (new_ctx);
|
|
|
|
conn = new_ctx->conn;
|
|
quicly_context = quic_get_quicly_ctx_from_ctx (new_ctx);
|
|
quic_update_conn_ctx (conn, quicly_context);
|
|
|
|
quic_store_conn_ctx (conn, new_ctx);
|
|
quic_make_connection_key (&kv, quicly_get_master_id (conn));
|
|
kv.value = ((u64) thread_index) << 32 | (u64) new_ctx_id;
|
|
QUIC_DBG (2, "Registering conn with id %lu %lu", kv.key[0], kv.key[1]);
|
|
clib_bihash_add_del_16_8 (&quic_main.connection_hash, &kv, 1 /* is_add */ );
|
|
new_ctx->timer_handle = QUIC_TIMER_HANDLE_INVALID;
|
|
quic_update_timer (new_ctx);
|
|
|
|
/* Trigger write on this connection if necessary */
|
|
udp_session = session_get_from_handle (new_ctx->udp_session_handle);
|
|
udp_session->opaque = new_ctx_id;
|
|
udp_session->flags &= ~SESSION_F_IS_MIGRATING;
|
|
if (svm_fifo_max_dequeue (udp_session->tx_fifo))
|
|
quic_set_udp_tx_evt (udp_session);
|
|
}
|
|
|
|
static void
|
|
quic_transfer_connection (u32 ctx_index, u32 dest_thread)
|
|
{
|
|
quic_ctx_t *ctx, *temp_ctx;
|
|
u32 thread_index = vlib_get_thread_index ();
|
|
|
|
QUIC_DBG (2, "Transferring conn %u to thread %u", ctx_index, dest_thread);
|
|
|
|
temp_ctx = clib_mem_alloc (sizeof (quic_ctx_t));
|
|
QUIC_ASSERT (temp_ctx != NULL);
|
|
ctx = quic_ctx_get (ctx_index, thread_index);
|
|
|
|
clib_memcpy (temp_ctx, ctx, sizeof (quic_ctx_t));
|
|
|
|
quic_stop_ctx_timer (ctx);
|
|
quic_release_crypto_context (ctx->crypto_context_index, thread_index);
|
|
quic_ctx_free (ctx);
|
|
|
|
/* Send connection to destination thread */
|
|
session_send_rpc_evt_to_thread (dest_thread, quic_receive_connection,
|
|
(void *) temp_ctx);
|
|
}
|
|
|
|
static int
|
|
quic_udp_session_connected_callback (u32 quic_app_index, u32 ctx_index,
|
|
session_t * udp_session,
|
|
session_error_t err)
|
|
{
|
|
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. */
|
|
clib_bihash_kv_16_8_t kv;
|
|
struct sockaddr_in6 sa6;
|
|
struct sockaddr *sa = (struct sockaddr *) &sa6;
|
|
socklen_t salen;
|
|
transport_connection_t *tc;
|
|
app_worker_t *app_wrk;
|
|
quicly_conn_t *conn;
|
|
quic_ctx_t *ctx;
|
|
u32 thread_index;
|
|
int ret;
|
|
quicly_context_t *quicly_ctx;
|
|
|
|
/* Allocate session on whatever thread udp used, i.e., probably first
|
|
* worker, although this may be main thread. If it is main, it's done
|
|
* with a worker barrier */
|
|
thread_index = udp_session->thread_index;
|
|
ASSERT (thread_index == 0 || thread_index == 1);
|
|
ctx = quic_ctx_get (ctx_index, thread_index);
|
|
if (err)
|
|
{
|
|
u32 api_context;
|
|
app_wrk = app_worker_get_if_valid (ctx->parent_app_wrk_id);
|
|
if (app_wrk)
|
|
{
|
|
api_context = ctx->c_s_index;
|
|
app_worker_connect_notify (app_wrk, 0, SESSION_E_NONE, api_context);
|
|
}
|
|
return 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;
|
|
|
|
/* Init QUIC lib connection
|
|
* Generate required sockaddr & salen */
|
|
tc = session_get_transport (udp_session);
|
|
quic_build_sockaddr (sa, &salen, &tc->rmt_ip, tc->rmt_port, tc->is_ip4);
|
|
|
|
quicly_ctx = quic_get_quicly_ctx_from_ctx (ctx);
|
|
ret = quicly_connect (&ctx->conn, quicly_ctx, (char *) ctx->srv_hostname, sa,
|
|
NULL, &quic_main.wrk_ctx[thread_index].next_cid,
|
|
ptls_iovec_init (NULL, 0), &quic_main.hs_properties,
|
|
NULL, NULL);
|
|
++quic_main.wrk_ctx[thread_index].next_cid.master_id;
|
|
/* Save context handle in quicly connection */
|
|
quic_store_conn_ctx (ctx->conn, ctx);
|
|
assert (ret == 0);
|
|
|
|
/* Register connection in connections map */
|
|
conn = ctx->conn;
|
|
quic_make_connection_key (&kv, quicly_get_master_id (conn));
|
|
kv.value = ((u64) thread_index) << 32 | (u64) ctx_index;
|
|
QUIC_DBG (2, "Registering conn with id %lu %lu", kv.key[0], kv.key[1]);
|
|
clib_bihash_add_del_16_8 (&quic_main.connection_hash, &kv, 1 /* is_add */ );
|
|
|
|
quic_send_packets (ctx);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static void
|
|
quic_udp_session_disconnect_callback (session_t * s)
|
|
{
|
|
clib_warning ("UDP session disconnected???");
|
|
}
|
|
|
|
static void
|
|
quic_udp_session_cleanup_callback (session_t * udp_session,
|
|
session_cleanup_ntf_t ntf)
|
|
{
|
|
quic_ctx_t *ctx;
|
|
|
|
if (ntf != SESSION_CLEANUP_SESSION)
|
|
return;
|
|
|
|
ctx = quic_ctx_get (udp_session->opaque, udp_session->thread_index);
|
|
quic_stop_ctx_timer (ctx);
|
|
quic_release_crypto_context (ctx->crypto_context_index,
|
|
ctx->c_thread_index);
|
|
quic_ctx_free (ctx);
|
|
}
|
|
|
|
static void
|
|
quic_udp_session_reset_callback (session_t * s)
|
|
{
|
|
clib_warning ("UDP session reset???");
|
|
}
|
|
|
|
static void
|
|
quic_udp_session_migrate_callback (session_t * s, session_handle_t new_sh)
|
|
{
|
|
u32 new_thread = session_thread_from_handle (new_sh);
|
|
quic_ctx_t *ctx;
|
|
|
|
QUIC_DBG (2, "Session %x migrated to %lx", s->session_index, new_sh);
|
|
QUIC_ASSERT (vlib_get_thread_index () == s->thread_index);
|
|
ctx = quic_ctx_get (s->opaque, s->thread_index);
|
|
QUIC_ASSERT (ctx->udp_session_handle == session_handle (s));
|
|
|
|
ctx->udp_session_handle = new_sh;
|
|
#if QUIC_DEBUG >= 1
|
|
s->opaque = 0xfeedface;
|
|
#endif
|
|
quic_transfer_connection (ctx->c_c_index, new_thread);
|
|
}
|
|
|
|
int
|
|
quic_udp_session_accepted_callback (session_t * udp_session)
|
|
{
|
|
/* New UDP connection, try to accept it */
|
|
u32 ctx_index;
|
|
quic_ctx_t *ctx, *lctx;
|
|
session_t *udp_listen_session;
|
|
u32 thread_index = vlib_get_thread_index ();
|
|
|
|
udp_listen_session =
|
|
listen_session_get_from_handle (udp_session->listener_handle);
|
|
|
|
ctx_index = quic_ctx_alloc (thread_index);
|
|
ctx = quic_ctx_get (ctx_index, thread_index);
|
|
ctx->c_thread_index = udp_session->thread_index;
|
|
ctx->c_c_index = ctx_index;
|
|
ctx->c_s_index = QUIC_SESSION_INVALID;
|
|
ctx->udp_session_handle = session_handle (udp_session);
|
|
QUIC_DBG (2, "ACCEPTED UDP 0x%lx", ctx->udp_session_handle);
|
|
ctx->listener_ctx_id = udp_listen_session->opaque;
|
|
lctx = quic_ctx_get (udp_listen_session->opaque,
|
|
udp_listen_session->thread_index);
|
|
ctx->udp_is_ip4 = lctx->c_is_ip4;
|
|
ctx->parent_app_id = lctx->parent_app_id;
|
|
ctx->parent_app_wrk_id = lctx->parent_app_wrk_id;
|
|
ctx->timer_handle = QUIC_TIMER_HANDLE_INVALID;
|
|
ctx->conn_state = QUIC_CONN_STATE_OPENED;
|
|
ctx->c_flags |= TRANSPORT_CONNECTION_F_NO_LOOKUP;
|
|
|
|
ctx->crypto_engine = lctx->crypto_engine;
|
|
ctx->ckpair_index = lctx->ckpair_index;
|
|
quic_acquire_crypto_context (ctx);
|
|
udp_session->opaque = ctx_index;
|
|
udp_session->session_state = SESSION_STATE_READY;
|
|
|
|
/* TODO timeout to delete these if they never connect */
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
quic_add_segment_callback (u32 client_index, u64 seg_handle)
|
|
{
|
|
/* No-op for builtin */
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
quic_del_segment_callback (u32 client_index, u64 seg_handle)
|
|
{
|
|
/* No-op for builtin */
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
quic_custom_app_rx_callback (transport_connection_t * tc)
|
|
{
|
|
quic_ctx_t *ctx;
|
|
session_t *stream_session = session_get (tc->s_index, tc->thread_index);
|
|
QUIC_DBG (3, "Received app READ notification");
|
|
quic_ack_rx_data (stream_session);
|
|
svm_fifo_reset_has_deq_ntf (stream_session->rx_fifo);
|
|
|
|
/* Need to send packets (acks may never be sent otherwise) */
|
|
ctx = quic_ctx_get (stream_session->connection_index,
|
|
stream_session->thread_index);
|
|
quic_send_packets (ctx);
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
quic_custom_tx_callback (void *s, transport_send_params_t * sp)
|
|
{
|
|
session_t *stream_session = (session_t *) s;
|
|
quic_stream_data_t *stream_data;
|
|
quicly_stream_t *stream;
|
|
quic_ctx_t *ctx;
|
|
u32 max_deq;
|
|
int rv;
|
|
|
|
if (PREDICT_FALSE
|
|
(stream_session->session_state >= SESSION_STATE_TRANSPORT_CLOSING))
|
|
return 0;
|
|
ctx = quic_ctx_get (stream_session->connection_index,
|
|
stream_session->thread_index);
|
|
if (PREDICT_FALSE (!quic_ctx_is_stream (ctx)))
|
|
{
|
|
goto tx_end; /* Most probably a reschedule */
|
|
}
|
|
|
|
QUIC_DBG (3, "Stream TX event");
|
|
quic_ack_rx_data (stream_session);
|
|
stream = ctx->stream;
|
|
if (!quicly_sendstate_is_open (&stream->sendstate))
|
|
{
|
|
QUIC_ERR ("Warning: tried to send on closed stream");
|
|
return 0;
|
|
}
|
|
|
|
stream_data = (quic_stream_data_t *) stream->data;
|
|
max_deq = svm_fifo_max_dequeue (stream_session->tx_fifo);
|
|
QUIC_ASSERT (max_deq >= stream_data->app_tx_data_len);
|
|
if (max_deq == stream_data->app_tx_data_len)
|
|
{
|
|
QUIC_DBG (3, "TX but no data %d / %d", max_deq,
|
|
stream_data->app_tx_data_len);
|
|
return 0;
|
|
}
|
|
stream_data->app_tx_data_len = max_deq;
|
|
rv = quicly_stream_sync_sendbuf (stream, 1);
|
|
QUIC_ASSERT (!rv);
|
|
|
|
tx_end:
|
|
return quic_send_packets (ctx);
|
|
}
|
|
|
|
/*
|
|
* Returns 0 if a matching connection is found and is on the right thread.
|
|
* Otherwise returns -1.
|
|
* If a connection is found, even on the wrong thread, ctx_thread and ctx_index
|
|
* will be set.
|
|
*/
|
|
static inline int
|
|
quic_find_packet_ctx (quic_rx_packet_ctx_t * pctx, u32 caller_thread_index)
|
|
{
|
|
clib_bihash_kv_16_8_t kv;
|
|
clib_bihash_16_8_t *h;
|
|
quic_ctx_t *ctx;
|
|
u32 index, thread_id;
|
|
|
|
h = &quic_main.connection_hash;
|
|
quic_make_connection_key (&kv, &pctx->packet.cid.dest.plaintext);
|
|
QUIC_DBG (3, "Searching conn with id %lu %lu", kv.key[0], kv.key[1]);
|
|
|
|
if (clib_bihash_search_16_8 (h, &kv, &kv))
|
|
{
|
|
QUIC_DBG (3, "connection not found");
|
|
return QUIC_PACKET_TYPE_NONE;
|
|
}
|
|
|
|
index = kv.value & UINT32_MAX;
|
|
thread_id = kv.value >> 32;
|
|
/* Check if this connection belongs to this thread, otherwise
|
|
* ask for it to be moved */
|
|
if (thread_id != caller_thread_index)
|
|
{
|
|
QUIC_DBG (2, "Connection is on wrong thread");
|
|
/* Cannot make full check with quicly_is_destination... */
|
|
pctx->ctx_index = index;
|
|
pctx->thread_index = thread_id;
|
|
return QUIC_PACKET_TYPE_MIGRATE;
|
|
}
|
|
ctx = quic_ctx_get (index, vlib_get_thread_index ());
|
|
if (!ctx->conn)
|
|
{
|
|
QUIC_ERR ("ctx has no conn");
|
|
return QUIC_PACKET_TYPE_NONE;
|
|
}
|
|
if (!quicly_is_destination (ctx->conn, NULL, &pctx->sa, &pctx->packet))
|
|
return QUIC_PACKET_TYPE_NONE;
|
|
|
|
QUIC_DBG (3, "Connection found");
|
|
pctx->ctx_index = index;
|
|
pctx->thread_index = thread_id;
|
|
return QUIC_PACKET_TYPE_RECEIVE;
|
|
}
|
|
|
|
static void
|
|
quic_accept_connection (quic_rx_packet_ctx_t * pctx)
|
|
{
|
|
quicly_context_t *quicly_ctx;
|
|
session_t *quic_session;
|
|
clib_bihash_kv_16_8_t kv;
|
|
app_worker_t *app_wrk;
|
|
quicly_conn_t *conn;
|
|
quic_ctx_t *ctx;
|
|
quic_ctx_t *lctx;
|
|
int rv;
|
|
|
|
/* new connection, accept and create context if packet is valid
|
|
* TODO: check if socket is actually listening? */
|
|
ctx = quic_ctx_get (pctx->ctx_index, pctx->thread_index);
|
|
if (ctx->c_s_index != QUIC_SESSION_INVALID)
|
|
{
|
|
QUIC_DBG (2, "already accepted ctx 0x%x", ctx->c_s_index);
|
|
return;
|
|
}
|
|
|
|
quicly_ctx = quic_get_quicly_ctx_from_ctx (ctx);
|
|
if ((rv = quicly_accept (
|
|
&conn, quicly_ctx, NULL, &pctx->sa, &pctx->packet, NULL,
|
|
&quic_main.wrk_ctx[pctx->thread_index].next_cid, NULL, NULL)))
|
|
{
|
|
/* Invalid packet, pass */
|
|
assert (conn == NULL);
|
|
QUIC_ERR ("Accept failed with %U", quic_format_err, rv);
|
|
/* TODO: cleanup created quic ctx and UDP session */
|
|
return;
|
|
}
|
|
assert (conn != NULL);
|
|
|
|
++quic_main.wrk_ctx[pctx->thread_index].next_cid.master_id;
|
|
/* Save ctx handle in quicly connection */
|
|
quic_store_conn_ctx (conn, ctx);
|
|
ctx->conn = conn;
|
|
|
|
quic_session = session_alloc (ctx->c_thread_index);
|
|
QUIC_DBG (2, "Allocated quic_session, 0x%lx ctx %u",
|
|
session_handle (quic_session), ctx->c_c_index);
|
|
ctx->c_s_index = quic_session->session_index;
|
|
|
|
lctx = quic_ctx_get (ctx->listener_ctx_id, 0);
|
|
|
|
quic_session->app_wrk_index = lctx->parent_app_wrk_id;
|
|
quic_session->connection_index = ctx->c_c_index;
|
|
quic_session->session_type =
|
|
session_type_from_proto_and_ip (TRANSPORT_PROTO_QUIC, ctx->udp_is_ip4);
|
|
quic_session->listener_handle = lctx->c_s_index;
|
|
|
|
/* Register connection in connections map */
|
|
quic_make_connection_key (&kv, quicly_get_master_id (conn));
|
|
kv.value = ((u64) pctx->thread_index) << 32 | (u64) pctx->ctx_index;
|
|
clib_bihash_add_del_16_8 (&quic_main.connection_hash, &kv, 1 /* is_add */ );
|
|
QUIC_DBG (2, "Registering conn with id %lu %lu", kv.key[0], kv.key[1]);
|
|
|
|
/* If notify fails, reset connection immediatly */
|
|
if ((rv = app_worker_init_accepted (quic_session)))
|
|
{
|
|
QUIC_ERR ("failed to allocate fifos");
|
|
quic_proto_on_close (pctx->ctx_index, pctx->thread_index);
|
|
return;
|
|
}
|
|
|
|
svm_fifo_init_ooo_lookup (quic_session->rx_fifo, 0 /* ooo enq */);
|
|
svm_fifo_init_ooo_lookup (quic_session->tx_fifo, 1 /* ooo deq */);
|
|
|
|
app_wrk = app_worker_get (quic_session->app_wrk_index);
|
|
quic_session->session_state = SESSION_STATE_ACCEPTING;
|
|
if ((rv = app_worker_accept_notify (app_wrk, quic_session)))
|
|
{
|
|
QUIC_ERR ("failed to notify accept worker app");
|
|
quic_proto_on_close (pctx->ctx_index, pctx->thread_index);
|
|
return;
|
|
}
|
|
|
|
ctx->conn_state = QUIC_CONN_STATE_READY;
|
|
}
|
|
|
|
static int
|
|
quic_reset_connection (u64 udp_session_handle, quic_rx_packet_ctx_t * pctx)
|
|
{
|
|
/* short header packet; potentially a dead connection. No need to check the
|
|
* length of the incoming packet, because loop is prevented by authenticating
|
|
* the CID (by checking node_id and thread_id). If the peer is also sending a
|
|
* reset, then the next CID is highly likely to contain a non-authenticating
|
|
* CID, ... */
|
|
QUIC_DBG (2, "Sending stateless reset");
|
|
int rv;
|
|
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);
|
|
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;
|
|
|
|
udp_session = session_get_from_handle (udp_session_handle);
|
|
rv = quic_send_datagram (udp_session, &packet, &qctx->rmt_ip, &qctx->lcl_ip);
|
|
quic_set_udp_tx_evt (udp_session);
|
|
return rv;
|
|
}
|
|
|
|
static int
|
|
quic_process_one_rx_packet (u64 udp_session_handle, svm_fifo_t * f,
|
|
u32 fifo_offset, quic_rx_packet_ctx_t * pctx)
|
|
{
|
|
size_t plen;
|
|
u32 full_len, ret;
|
|
u32 thread_index = vlib_get_thread_index ();
|
|
u32 cur_deq = svm_fifo_max_dequeue (f) - fifo_offset;
|
|
quicly_context_t *quicly_ctx;
|
|
session_t *udp_session;
|
|
int rv;
|
|
|
|
ret = svm_fifo_peek (f, fifo_offset,
|
|
SESSION_CONN_HDR_LEN, (u8 *) & pctx->ph);
|
|
QUIC_ASSERT (ret == SESSION_CONN_HDR_LEN);
|
|
QUIC_ASSERT (pctx->ph.data_offset == 0);
|
|
full_len = pctx->ph.data_length + SESSION_CONN_HDR_LEN;
|
|
if (full_len > cur_deq)
|
|
{
|
|
QUIC_ERR ("Not enough data in fifo RX");
|
|
return 1;
|
|
}
|
|
|
|
/* Quicly can read len bytes from the fifo at offset:
|
|
* ph.data_offset + SESSION_CONN_HDR_LEN */
|
|
ret = svm_fifo_peek (f, SESSION_CONN_HDR_LEN + fifo_offset,
|
|
pctx->ph.data_length, pctx->data);
|
|
if (ret != pctx->ph.data_length)
|
|
{
|
|
QUIC_ERR ("Not enough data peeked in RX");
|
|
return 1;
|
|
}
|
|
|
|
quic_increment_counter (QUIC_ERROR_RX_PACKETS, 1);
|
|
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);
|
|
|
|
size_t off = 0;
|
|
plen = quicly_decode_packet (quicly_ctx, &pctx->packet, pctx->data,
|
|
pctx->ph.data_length, &off);
|
|
|
|
if (plen == SIZE_MAX)
|
|
{
|
|
return 1;
|
|
}
|
|
|
|
rv = quic_find_packet_ctx (pctx, thread_index);
|
|
if (rv == QUIC_PACKET_TYPE_RECEIVE)
|
|
{
|
|
pctx->ptype = QUIC_PACKET_TYPE_RECEIVE;
|
|
|
|
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);
|
|
}
|
|
return 0;
|
|
}
|
|
else if (rv == QUIC_PACKET_TYPE_MIGRATE)
|
|
{
|
|
pctx->ptype = QUIC_PACKET_TYPE_MIGRATE;
|
|
/* Connection found but on wrong thread, ask move */
|
|
}
|
|
else if (QUICLY_PACKET_IS_LONG_HEADER (pctx->packet.octets.base[0]))
|
|
{
|
|
pctx->ptype = QUIC_PACKET_TYPE_ACCEPT;
|
|
udp_session = session_get_from_handle (udp_session_handle);
|
|
pctx->ctx_index = udp_session->opaque;
|
|
pctx->thread_index = thread_index;
|
|
}
|
|
else
|
|
{
|
|
pctx->ptype = QUIC_PACKET_TYPE_RESET;
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
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_ctx_t *ctx = NULL, *prev_ctx = NULL;
|
|
svm_fifo_t *f = udp_session->rx_fifo;
|
|
u32 max_deq;
|
|
u64 udp_session_handle = session_handle (udp_session);
|
|
int rv = 0;
|
|
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_PACKETS];
|
|
|
|
if (udp_session->flags & SESSION_F_IS_MIGRATING)
|
|
{
|
|
QUIC_DBG (3, "RX on migrating udp session");
|
|
return 0;
|
|
}
|
|
|
|
rx_start:
|
|
max_deq = svm_fifo_max_dequeue (f);
|
|
if (max_deq == 0)
|
|
return 0;
|
|
|
|
fifo_offset = 0;
|
|
max_packets = QUIC_RCV_MAX_PACKETS;
|
|
|
|
#if CLIB_DEBUG > 0
|
|
clib_memset (packets_ctx, 0xfa,
|
|
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;
|
|
packets_ctx[i].ctx_index = UINT32_MAX;
|
|
packets_ctx[i].ptype = QUIC_PACKET_TYPE_DROP;
|
|
|
|
cur_deq = max_deq - fifo_offset;
|
|
if (cur_deq == 0)
|
|
{
|
|
max_packets = i + 1;
|
|
break;
|
|
}
|
|
if (cur_deq < SESSION_CONN_HDR_LEN)
|
|
{
|
|
fifo_offset = max_deq;
|
|
max_packets = i + 1;
|
|
QUIC_ERR ("Fifo %d < header size in RX", cur_deq);
|
|
break;
|
|
}
|
|
rv = quic_process_one_rx_packet (udp_session_handle, f,
|
|
fifo_offset, &packets_ctx[i]);
|
|
if (packets_ctx[i].ptype != QUIC_PACKET_TYPE_MIGRATE)
|
|
fifo_offset += SESSION_CONN_HDR_LEN + packets_ctx[i].ph.data_length;
|
|
if (rv)
|
|
{
|
|
max_packets = i + 1;
|
|
break;
|
|
}
|
|
}
|
|
|
|
for (i = 0; i < max_packets; i++)
|
|
{
|
|
switch (packets_ctx[i].ptype)
|
|
{
|
|
case QUIC_PACKET_TYPE_RECEIVE:
|
|
ctx = quic_ctx_get (packets_ctx[i].ctx_index, thread_index);
|
|
rv = quicly_receive (ctx->conn, NULL, &packets_ctx[i].sa,
|
|
&packets_ctx[i].packet);
|
|
if (rv && rv != QUICLY_ERROR_PACKET_IGNORED)
|
|
{
|
|
QUIC_ERR ("quicly_receive return error %U",
|
|
quic_format_err, rv);
|
|
}
|
|
break;
|
|
case QUIC_PACKET_TYPE_ACCEPT:
|
|
quic_accept_connection (&packets_ctx[i]);
|
|
break;
|
|
case QUIC_PACKET_TYPE_RESET:
|
|
quic_reset_connection (udp_session_handle, &packets_ctx[i]);
|
|
break;
|
|
}
|
|
}
|
|
ctx = prev_ctx = NULL;
|
|
for (i = 0; i < max_packets; i++)
|
|
{
|
|
prev_ctx = ctx;
|
|
switch (packets_ctx[i].ptype)
|
|
{
|
|
case QUIC_PACKET_TYPE_RECEIVE:
|
|
ctx = quic_ctx_get (packets_ctx[i].ctx_index,
|
|
packets_ctx[i].thread_index);
|
|
quic_check_quic_session_connected (ctx);
|
|
ctx = quic_ctx_get (packets_ctx[i].ctx_index,
|
|
packets_ctx[i].thread_index);
|
|
break;
|
|
case QUIC_PACKET_TYPE_ACCEPT:
|
|
ctx = quic_ctx_get (packets_ctx[i].ctx_index,
|
|
packets_ctx[i].thread_index);
|
|
break;
|
|
default:
|
|
continue; /* this exits the for loop since other packet types are
|
|
necessarily the last in the batch */
|
|
}
|
|
if (ctx != prev_ctx)
|
|
quic_send_packets (ctx);
|
|
}
|
|
|
|
udp_session = session_get_from_handle (udp_session_handle); /* session alloc might have happened */
|
|
f = udp_session->rx_fifo;
|
|
svm_fifo_dequeue_drop (f, fifo_offset);
|
|
|
|
if (svm_fifo_max_dequeue (f))
|
|
goto rx_start;
|
|
|
|
return 0;
|
|
}
|
|
|
|
always_inline void
|
|
quic_common_get_transport_endpoint (quic_ctx_t * ctx,
|
|
transport_endpoint_t * tep, u8 is_lcl)
|
|
{
|
|
session_t *udp_session;
|
|
if (!quic_ctx_is_stream (ctx))
|
|
{
|
|
udp_session = session_get_from_handle (ctx->udp_session_handle);
|
|
session_get_endpoint (udp_session, tep, is_lcl);
|
|
}
|
|
}
|
|
|
|
static void
|
|
quic_get_transport_listener_endpoint (u32 listener_index,
|
|
transport_endpoint_t * tep, u8 is_lcl)
|
|
{
|
|
quic_ctx_t *ctx;
|
|
app_listener_t *app_listener;
|
|
session_t *udp_listen_session;
|
|
ctx = quic_ctx_get (listener_index, vlib_get_thread_index ());
|
|
if (quic_ctx_is_listener (ctx))
|
|
{
|
|
app_listener = app_listener_get_w_handle (ctx->udp_session_handle);
|
|
udp_listen_session = app_listener_get_session (app_listener);
|
|
return session_get_endpoint (udp_listen_session, tep, is_lcl);
|
|
}
|
|
quic_common_get_transport_endpoint (ctx, tep, is_lcl);
|
|
}
|
|
|
|
static void
|
|
quic_get_transport_endpoint (u32 ctx_index, u32 thread_index,
|
|
transport_endpoint_t * tep, u8 is_lcl)
|
|
{
|
|
quic_ctx_t *ctx;
|
|
ctx = quic_ctx_get (ctx_index, thread_index);
|
|
quic_common_get_transport_endpoint (ctx, tep, is_lcl);
|
|
}
|
|
|
|
static session_cb_vft_t quic_app_cb_vft = {
|
|
.session_accept_callback = quic_udp_session_accepted_callback,
|
|
.session_disconnect_callback = quic_udp_session_disconnect_callback,
|
|
.session_connected_callback = quic_udp_session_connected_callback,
|
|
.session_reset_callback = quic_udp_session_reset_callback,
|
|
.session_migrate_callback = quic_udp_session_migrate_callback,
|
|
.add_segment_callback = quic_add_segment_callback,
|
|
.del_segment_callback = quic_del_segment_callback,
|
|
.builtin_app_rx_callback = quic_udp_session_rx_callback,
|
|
.session_cleanup_callback = quic_udp_session_cleanup_callback,
|
|
.app_cert_key_pair_delete_callback = quic_app_cert_key_pair_delete_callback,
|
|
};
|
|
|
|
static const transport_proto_vft_t quic_proto = {
|
|
.connect = quic_connect,
|
|
.close = quic_proto_on_close,
|
|
.start_listen = quic_start_listen,
|
|
.stop_listen = quic_stop_listen,
|
|
.get_connection = quic_connection_get,
|
|
.get_listener = quic_listener_get,
|
|
.update_time = quic_update_time,
|
|
.app_rx_evt = quic_custom_app_rx_callback,
|
|
.custom_tx = quic_custom_tx_callback,
|
|
.format_connection = format_quic_connection,
|
|
.format_half_open = format_quic_half_open,
|
|
.format_listener = format_quic_listener,
|
|
.get_transport_endpoint = quic_get_transport_endpoint,
|
|
.get_transport_listener_endpoint = quic_get_transport_listener_endpoint,
|
|
.transport_options = {
|
|
.name = "quic",
|
|
.short_name = "Q",
|
|
.tx_type = TRANSPORT_TX_INTERNAL,
|
|
.service_type = TRANSPORT_SERVICE_APP,
|
|
},
|
|
};
|
|
|
|
static quicly_stream_open_t on_stream_open = { quic_on_stream_open };
|
|
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
|
|
quic_register_cipher_suite (crypto_engine_type_t type,
|
|
ptls_cipher_suite_t ** ciphers)
|
|
{
|
|
quic_main_t *qm = &quic_main;
|
|
vec_validate (qm->quic_ciphers, type);
|
|
clib_bitmap_set (qm->available_crypto_engines, type, 1);
|
|
qm->quic_ciphers[type] = ciphers;
|
|
}
|
|
|
|
static void
|
|
quic_update_fifo_size ()
|
|
{
|
|
quic_main_t *qm = &quic_main;
|
|
segment_manager_props_t *seg_mgr_props =
|
|
application_get_segment_manager_properties (qm->app_index);
|
|
|
|
if (!seg_mgr_props)
|
|
{
|
|
clib_warning
|
|
("error while getting segment_manager_props_t, can't update fifo-size");
|
|
return;
|
|
}
|
|
|
|
seg_mgr_props->tx_fifo_size = qm->udp_fifo_size;
|
|
seg_mgr_props->rx_fifo_size = qm->udp_fifo_size;
|
|
}
|
|
|
|
static clib_error_t *
|
|
quic_init (vlib_main_t * vm)
|
|
{
|
|
u32 segment_size = 256 << 20;
|
|
vlib_thread_main_t *vtm = vlib_get_thread_main ();
|
|
tw_timer_wheel_1t_3w_1024sl_ov_t *tw;
|
|
vnet_app_attach_args_t _a, *a = &_a;
|
|
u64 options[APP_OPTIONS_N_OPTIONS];
|
|
quic_main_t *qm = &quic_main;
|
|
u32 num_threads, i;
|
|
u8 seed[32];
|
|
|
|
if (syscall (SYS_getrandom, &seed, sizeof (seed), 0) != sizeof (seed))
|
|
return clib_error_return_unix (0, "getrandom() failed");
|
|
RAND_seed (seed, sizeof (seed));
|
|
|
|
num_threads = 1 /* main thread */ + vtm->n_threads;
|
|
|
|
clib_memset (a, 0, sizeof (*a));
|
|
clib_memset (options, 0, sizeof (options));
|
|
|
|
a->session_cb_vft = &quic_app_cb_vft;
|
|
a->api_client_index = APP_INVALID_INDEX;
|
|
a->options = options;
|
|
a->name = format (0, "quic");
|
|
a->options[APP_OPTIONS_SEGMENT_SIZE] = segment_size;
|
|
a->options[APP_OPTIONS_ADD_SEGMENT_SIZE] = segment_size;
|
|
a->options[APP_OPTIONS_RX_FIFO_SIZE] = qm->udp_fifo_size;
|
|
a->options[APP_OPTIONS_TX_FIFO_SIZE] = qm->udp_fifo_size;
|
|
a->options[APP_OPTIONS_PREALLOC_FIFO_PAIRS] = qm->udp_fifo_prealloc;
|
|
a->options[APP_OPTIONS_FLAGS] = APP_OPTIONS_FLAGS_IS_BUILTIN;
|
|
a->options[APP_OPTIONS_FLAGS] |= APP_OPTIONS_FLAGS_USE_GLOBAL_SCOPE;
|
|
a->options[APP_OPTIONS_FLAGS] |= APP_OPTIONS_FLAGS_IS_TRANSPORT_APP;
|
|
|
|
if (vnet_application_attach (a))
|
|
{
|
|
clib_warning ("failed to attach quic app");
|
|
return clib_error_return (0, "failed to attach quic app");
|
|
}
|
|
|
|
vec_validate (qm->ctx_pool, num_threads - 1);
|
|
vec_validate (qm->wrk_ctx, num_threads - 1);
|
|
|
|
for (i = 0; i < num_threads; i++)
|
|
{
|
|
qm->wrk_ctx[i].next_cid.thread_id = i;
|
|
tw = &qm->wrk_ctx[i].timer_wheel;
|
|
tw_timer_wheel_init_1t_3w_1024sl_ov (tw, quic_expired_timers_dispatch,
|
|
1e-3 /* timer period 1ms */ , ~0);
|
|
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);
|
|
}
|
|
|
|
clib_bihash_init_16_8 (&qm->connection_hash, "quic connections", 1024,
|
|
4 << 20);
|
|
|
|
qm->app_index = a->app_index;
|
|
qm->tstamp_ticks_per_clock = vm->clib_time.seconds_per_clock
|
|
/ QUIC_TSTAMP_RESOLUTION;
|
|
qm->session_cache.super.cb = quic_encrypt_ticket_cb;
|
|
|
|
transport_register_protocol (TRANSPORT_PROTO_QUIC, &quic_proto,
|
|
FIB_PROTOCOL_IP4, ~0);
|
|
transport_register_protocol (TRANSPORT_PROTO_QUIC, &quic_proto,
|
|
FIB_PROTOCOL_IP6, ~0);
|
|
|
|
quic_load_openssl3_legacy_provider ();
|
|
clib_bitmap_alloc (qm->available_crypto_engines,
|
|
app_crypto_engine_n_types ());
|
|
quic_register_cipher_suite (CRYPTO_ENGINE_PICOTLS,
|
|
ptls_openssl_cipher_suites);
|
|
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)
|
|
{
|
|
u8 empty_key[32] = {};
|
|
quic_register_cipher_suite (CRYPTO_ENGINE_VPP,
|
|
quic_crypto_cipher_suites);
|
|
qm->default_crypto_engine = CRYPTO_ENGINE_VPP;
|
|
vec_validate (qm->per_thread_crypto_key_indices, num_threads);
|
|
for (i = 0; i < num_threads; i++)
|
|
{
|
|
qm->per_thread_crypto_key_indices[i] = vnet_crypto_key_add (
|
|
vm, VNET_CRYPTO_ALG_AES_256_CTR, empty_key, 32);
|
|
}
|
|
}
|
|
|
|
qm->max_packets_per_key = DEFAULT_MAX_PACKETS_PER_KEY;
|
|
qm->default_quic_cc = QUIC_CC_RENO;
|
|
|
|
vec_free (a->name);
|
|
return 0;
|
|
}
|
|
|
|
VLIB_INIT_FUNCTION (quic_init);
|
|
|
|
static clib_error_t *
|
|
quic_plugin_crypto_command_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, "vpp"))
|
|
qm->default_crypto_engine = CRYPTO_ENGINE_VPP;
|
|
else if (unformat (line_input, "picotls"))
|
|
qm->default_crypto_engine = CRYPTO_ENGINE_PICOTLS;
|
|
else
|
|
{
|
|
e = clib_error_return (0, "unknown input '%U'",
|
|
format_unformat_error, line_input);
|
|
goto done;
|
|
}
|
|
}
|
|
done:
|
|
unformat_free (line_input);
|
|
return e;
|
|
}
|
|
|
|
u64 quic_fifosize = 0;
|
|
static clib_error_t *
|
|
quic_plugin_set_fifo_size_command_fn (vlib_main_t * vm,
|
|
unformat_input_t * input,
|
|
vlib_cli_command_t * cmd)
|
|
{
|
|
quic_main_t *qm = &quic_main;
|
|
unformat_input_t _line_input, *line_input = &_line_input;
|
|
uword tmp;
|
|
|
|
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, "%U", unformat_memory_size, &tmp))
|
|
{
|
|
if (tmp >= 0x100000000ULL)
|
|
{
|
|
return clib_error_return
|
|
(0, "fifo-size %llu (0x%llx) too large", tmp, tmp);
|
|
}
|
|
qm->udp_fifo_size = tmp;
|
|
quic_update_fifo_size ();
|
|
}
|
|
else
|
|
return clib_error_return (0, "unknown input '%U'",
|
|
format_unformat_error, line_input);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static inline u64
|
|
quic_get_counter_value (u32 event_code)
|
|
{
|
|
vlib_node_t *n;
|
|
vlib_main_t *vm;
|
|
vlib_error_main_t *em;
|
|
|
|
u32 code, i;
|
|
u64 c, sum = 0;
|
|
|
|
vm = vlib_get_main ();
|
|
em = &vm->error_main;
|
|
n = vlib_get_node (vm, quic_input_node.index);
|
|
code = event_code;
|
|
foreach_vlib_main ()
|
|
{
|
|
em = &this_vlib_main->error_main;
|
|
i = n->error_heap_index + code;
|
|
c = em->counters[i];
|
|
|
|
if (i < vec_len (em->counters_last_clear))
|
|
c -= em->counters_last_clear[i];
|
|
sum += c;
|
|
}
|
|
return sum;
|
|
}
|
|
|
|
static void
|
|
quic_show_aggregated_stats (vlib_main_t * vm)
|
|
{
|
|
u32 num_workers = vlib_num_workers ();
|
|
quic_main_t *qm = &quic_main;
|
|
quic_ctx_t *ctx = NULL;
|
|
quicly_stats_t st, agg_stats;
|
|
u32 i, nconn = 0, nstream = 0;
|
|
|
|
clib_memset (&agg_stats, 0, sizeof (agg_stats));
|
|
for (i = 0; i < num_workers + 1; i++)
|
|
{
|
|
pool_foreach (ctx, qm->ctx_pool[i])
|
|
{
|
|
if (quic_ctx_is_conn (ctx) && ctx->conn)
|
|
{
|
|
quicly_get_stats (ctx->conn, &st);
|
|
agg_stats.rtt.smoothed += st.rtt.smoothed;
|
|
agg_stats.rtt.minimum += st.rtt.minimum;
|
|
agg_stats.rtt.variance += st.rtt.variance;
|
|
agg_stats.num_packets.received += st.num_packets.received;
|
|
agg_stats.num_packets.sent += st.num_packets.sent;
|
|
agg_stats.num_packets.lost += st.num_packets.lost;
|
|
agg_stats.num_packets.ack_received += st.num_packets.ack_received;
|
|
agg_stats.num_bytes.received += st.num_bytes.received;
|
|
agg_stats.num_bytes.sent += st.num_bytes.sent;
|
|
nconn++;
|
|
}
|
|
else if (quic_ctx_is_stream (ctx))
|
|
nstream++;
|
|
}
|
|
}
|
|
vlib_cli_output (vm, "-------- Connections --------");
|
|
vlib_cli_output (vm, "Current: %u", nconn);
|
|
vlib_cli_output (vm, "Opened: %d",
|
|
quic_get_counter_value (QUIC_ERROR_OPENED_CONNECTION));
|
|
vlib_cli_output (vm, "Closed: %d",
|
|
quic_get_counter_value (QUIC_ERROR_CLOSED_CONNECTION));
|
|
vlib_cli_output (vm, "---------- Streams ----------");
|
|
vlib_cli_output (vm, "Current: %u", nstream);
|
|
vlib_cli_output (vm, "Opened: %d",
|
|
quic_get_counter_value (QUIC_ERROR_OPENED_STREAM));
|
|
vlib_cli_output (vm, "Closed: %d",
|
|
quic_get_counter_value (QUIC_ERROR_CLOSED_STREAM));
|
|
vlib_cli_output (vm, "---------- Packets ----------");
|
|
vlib_cli_output (vm, "RX Total: %d",
|
|
quic_get_counter_value (QUIC_ERROR_RX_PACKETS));
|
|
vlib_cli_output (vm, "RX 0RTT: %d",
|
|
quic_get_counter_value (QUIC_ERROR_ZERO_RTT_RX_PACKETS));
|
|
vlib_cli_output (vm, "RX 1RTT: %d",
|
|
quic_get_counter_value (QUIC_ERROR_ONE_RTT_RX_PACKETS));
|
|
vlib_cli_output (vm, "TX Total: %d",
|
|
quic_get_counter_value (QUIC_ERROR_TX_PACKETS));
|
|
vlib_cli_output (vm, "----------- Stats -----------");
|
|
vlib_cli_output (vm, "Min RTT %f",
|
|
nconn > 0 ? agg_stats.rtt.minimum / nconn : 0);
|
|
vlib_cli_output (vm, "Smoothed RTT %f",
|
|
nconn > 0 ? agg_stats.rtt.smoothed / nconn : 0);
|
|
vlib_cli_output (vm, "Variance on RTT %f",
|
|
nconn > 0 ? agg_stats.rtt.variance / nconn : 0);
|
|
vlib_cli_output (vm, "Packets Received %lu",
|
|
agg_stats.num_packets.received);
|
|
vlib_cli_output (vm, "Packets Sent %lu", agg_stats.num_packets.sent);
|
|
vlib_cli_output (vm, "Packets Lost %lu", agg_stats.num_packets.lost);
|
|
vlib_cli_output (vm, "Packets Acks %lu",
|
|
agg_stats.num_packets.ack_received);
|
|
vlib_cli_output (vm, "RX bytes %lu", agg_stats.num_bytes.received);
|
|
vlib_cli_output (vm, "TX bytes %lu", agg_stats.num_bytes.sent);
|
|
}
|
|
|
|
static u8 *
|
|
quic_format_quicly_conn_id (u8 * s, va_list * args)
|
|
{
|
|
quicly_cid_plaintext_t *mid = va_arg (*args, quicly_cid_plaintext_t *);
|
|
s = format (s, "C%x_%x", mid->master_id, mid->thread_id);
|
|
return s;
|
|
}
|
|
|
|
static u8 *
|
|
quic_format_quicly_stream_id (u8 * s, va_list * args)
|
|
{
|
|
quicly_stream_t *stream = va_arg (*args, quicly_stream_t *);
|
|
s =
|
|
format (s, "%U S%lx", quic_format_quicly_conn_id,
|
|
quicly_get_master_id (stream->conn), stream->stream_id);
|
|
return s;
|
|
}
|
|
|
|
static u8 *
|
|
quic_format_listener_ctx (u8 * s, va_list * args)
|
|
{
|
|
quic_ctx_t *ctx = va_arg (*args, quic_ctx_t *);
|
|
s = format (s, "[#%d][%x][Listener]", ctx->c_thread_index, ctx->c_c_index);
|
|
return s;
|
|
}
|
|
|
|
static u8 *
|
|
quic_format_connection_ctx (u8 * s, va_list * args)
|
|
{
|
|
quic_ctx_t *ctx = va_arg (*args, quic_ctx_t *);
|
|
quicly_stats_t quicly_stats;
|
|
|
|
s = format (s, "[#%d][%x]", ctx->c_thread_index, ctx->c_c_index);
|
|
|
|
if (!ctx->conn)
|
|
{
|
|
s = format (s, "- no conn -\n");
|
|
return s;
|
|
}
|
|
s = format (s, "[%U]",
|
|
quic_format_quicly_conn_id, quicly_get_master_id (ctx->conn));
|
|
quicly_get_stats (ctx->conn, &quicly_stats);
|
|
|
|
s = format (s, "[RTT >%3d, ~%3d, V%3d, last %3d]",
|
|
quicly_stats.rtt.minimum, quicly_stats.rtt.smoothed,
|
|
quicly_stats.rtt.variance, quicly_stats.rtt.latest);
|
|
s = format (s, " TX:%d RX:%d loss:%d ack:%d",
|
|
quicly_stats.num_packets.sent,
|
|
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;
|
|
}
|
|
|
|
static u8 *
|
|
quic_format_stream_ctx (u8 * s, va_list * args)
|
|
{
|
|
quic_ctx_t *ctx = va_arg (*args, quic_ctx_t *);
|
|
session_t *stream_session;
|
|
quicly_stream_t *stream = ctx->stream;
|
|
u32 txs, rxs;
|
|
|
|
s = format (s, "[#%d][%x]", ctx->c_thread_index, ctx->c_c_index);
|
|
s = format (s, "[%U]", quic_format_quicly_stream_id, stream);
|
|
|
|
stream_session = session_get_if_valid (ctx->c_s_index, ctx->c_thread_index);
|
|
if (!stream_session)
|
|
{
|
|
s = format (s, "- no session -\n");
|
|
return s;
|
|
}
|
|
txs = svm_fifo_max_dequeue (stream_session->tx_fifo);
|
|
rxs = svm_fifo_max_dequeue (stream_session->rx_fifo);
|
|
s = format (s, "[rx %d tx %d]\n", rxs, txs);
|
|
return s;
|
|
}
|
|
|
|
static clib_error_t *
|
|
quic_show_connections_command_fn (vlib_main_t * vm,
|
|
unformat_input_t * input,
|
|
vlib_cli_command_t * cmd)
|
|
{
|
|
unformat_input_t _line_input, *line_input = &_line_input;
|
|
u8 show_listeners = 0, show_conn = 0, show_stream = 0;
|
|
u32 num_workers = vlib_num_workers ();
|
|
quic_main_t *qm = &quic_main;
|
|
clib_error_t *error = 0;
|
|
quic_ctx_t *ctx = NULL;
|
|
|
|
session_cli_return_if_not_enabled ();
|
|
|
|
if (!unformat_user (input, unformat_line_input, line_input))
|
|
{
|
|
quic_show_aggregated_stats (vm);
|
|
return 0;
|
|
}
|
|
|
|
while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
|
|
{
|
|
if (unformat (line_input, "listener"))
|
|
show_listeners = 1;
|
|
else if (unformat (line_input, "conn"))
|
|
show_conn = 1;
|
|
else if (unformat (line_input, "stream"))
|
|
show_stream = 1;
|
|
else
|
|
{
|
|
error = clib_error_return (0, "unknown input `%U'",
|
|
format_unformat_error, line_input);
|
|
goto done;
|
|
}
|
|
}
|
|
|
|
for (int i = 0; i < num_workers + 1; i++)
|
|
{
|
|
pool_foreach (ctx, qm->ctx_pool[i])
|
|
{
|
|
if (quic_ctx_is_stream (ctx) && show_stream)
|
|
vlib_cli_output (vm, "%U", quic_format_stream_ctx, ctx);
|
|
else if (quic_ctx_is_listener (ctx) && show_listeners)
|
|
vlib_cli_output (vm, "%U", quic_format_listener_ctx, ctx);
|
|
else if (quic_ctx_is_conn (ctx) && show_conn)
|
|
vlib_cli_output (vm, "%U", quic_format_connection_ctx, ctx);
|
|
}
|
|
}
|
|
|
|
done:
|
|
unformat_free (line_input);
|
|
return error;
|
|
}
|
|
|
|
VLIB_CLI_COMMAND (quic_plugin_crypto_command, static) = {
|
|
.path = "quic set crypto api",
|
|
.short_help = "quic set crypto api [picotls|vpp]",
|
|
.function = quic_plugin_crypto_command_fn,
|
|
};
|
|
VLIB_CLI_COMMAND(quic_plugin_set_fifo_size_command, static)=
|
|
{
|
|
.path = "quic set fifo-size",
|
|
.short_help = "quic set fifo-size N[K|M|G] (default 64K)",
|
|
.function = quic_plugin_set_fifo_size_command_fn,
|
|
};
|
|
VLIB_CLI_COMMAND(quic_show_ctx_command, static)=
|
|
{
|
|
.path = "show quic",
|
|
.short_help = "show quic",
|
|
.function = quic_show_connections_command_fn,
|
|
};
|
|
VLIB_CLI_COMMAND (quic_list_crypto_context_command, static) =
|
|
{
|
|
.path = "show quic crypto context",
|
|
.short_help = "list quic crypto contextes",
|
|
.function = quic_list_crypto_context_command_fn,
|
|
};
|
|
VLIB_CLI_COMMAND (quic_set_max_packets_per_key, static) =
|
|
{
|
|
.path = "set quic max_packets_per_key",
|
|
.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,
|
|
.description = "Quic transport protocol",
|
|
.default_disabled = 1,
|
|
};
|
|
|
|
static clib_error_t *
|
|
quic_config_fn (vlib_main_t * vm, unformat_input_t * input)
|
|
{
|
|
unformat_input_t _line_input, *line_input = &_line_input;
|
|
quic_main_t *qm = &quic_main;
|
|
clib_error_t *error = 0;
|
|
uword tmp;
|
|
u32 i;
|
|
|
|
qm->udp_fifo_size = QUIC_DEFAULT_FIFO_SIZE;
|
|
qm->udp_fifo_prealloc = 0;
|
|
qm->connection_timeout = QUIC_DEFAULT_CONN_TIMEOUT;
|
|
|
|
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, "fifo-size %U", unformat_memory_size, &tmp))
|
|
{
|
|
if (tmp >= 0x100000000ULL)
|
|
{
|
|
error = clib_error_return (0,
|
|
"fifo-size %llu (0x%llx) too large",
|
|
tmp, tmp);
|
|
goto done;
|
|
}
|
|
qm->udp_fifo_size = tmp;
|
|
}
|
|
else if (unformat (line_input, "conn-timeout %u", &i))
|
|
qm->connection_timeout = i;
|
|
else if (unformat (line_input, "fifo-prealloc %u", &i))
|
|
qm->udp_fifo_prealloc = i;
|
|
else
|
|
{
|
|
error = clib_error_return (0, "unknown input '%U'",
|
|
format_unformat_error, line_input);
|
|
goto done;
|
|
}
|
|
}
|
|
done:
|
|
unformat_free (line_input);
|
|
return error;
|
|
}
|
|
|
|
VLIB_EARLY_CONFIG_FUNCTION (quic_config_fn, "quic");
|
|
|
|
static uword
|
|
quic_node_fn (vlib_main_t * vm, vlib_node_runtime_t * node,
|
|
vlib_frame_t * frame)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
VLIB_REGISTER_NODE (quic_input_node) =
|
|
{
|
|
.function = quic_node_fn,
|
|
.name = "quic-input",
|
|
.vector_size = sizeof (u32),
|
|
.type = VLIB_NODE_TYPE_INTERNAL,
|
|
.n_errors = ARRAY_LEN (quic_error_strings),
|
|
.error_strings = quic_error_strings,
|
|
};
|
|
|
|
/*
|
|
* fd.io coding-style-patch-verification: ON
|
|
*
|
|
* Local Variables:
|
|
* eval: (c-set-style "gnu")
|
|
* End:
|
|
*/
|