diff options
Diffstat (limited to 'src/plugins/quic/quic.c')
| -rw-r--r-- | src/plugins/quic/quic.c | 266 |
1 files changed, 131 insertions, 135 deletions
diff --git a/src/plugins/quic/quic.c b/src/plugins/quic/quic.c index 252f92d3160..77e9c33dec9 100644 --- a/src/plugins/quic/quic.c +++ b/src/plugins/quic/quic.c @@ -128,6 +128,27 @@ quic_sendable_packet_count (session_t * udp_session) 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) +{ + app_worker_t *app_wrk; + application_t *app; + app_wrk = app_worker_get_if_valid (ctx->parent_app_wrk_id); + if (!app_wrk) + return 0; + app = application_get (app_wrk->app_index); + return (quicly_context_t *) app->quicly_ctx; +} + +static quicly_context_t * +quic_get_quicly_ctx_from_udp (u32 udp_session_handle) +{ + session_t *udp_session; + application_t *app; + udp_session = session_get_from_handle (udp_session_handle); + app = application_get (udp_session->opaque); + return (quicly_context_t *) app->quicly_ctx; +} static void quic_ack_rx_data (session_t * stream_session) @@ -314,9 +335,8 @@ quic_send_packets (quic_ctx_t * ctx) session_t *udp_session; quicly_conn_t *conn; size_t num_packets, i, max_packets; + quicly_packet_allocator_t *pa; quicly_context_t *quicly_context; - app_worker_t *app_wrk; - application_t *app; int err = 0; /* We have sctx, get qctx */ @@ -338,17 +358,15 @@ quic_send_packets (quic_ctx_t * ctx) if (quic_sendable_packet_count (udp_session) < 2) goto stop_sending; - app_wrk = app_worker_get_if_valid (ctx->parent_app_wrk_id); - if (!app_wrk) + quicly_context = quic_get_quicly_ctx_from_ctx (ctx); + if (!quicly_context) { clib_warning ("Tried to send packets on non existing app worker %u", ctx->parent_app_wrk_id); quic_connection_delete (ctx); return 1; } - app = application_get (app_wrk->app_index); - - quicly_context = (quicly_context_t *) app->quicly_ctx; + pa = quicly_context->packet_allocator; do { max_packets = quic_sendable_packet_count (udp_session); @@ -363,8 +381,7 @@ quic_send_packets (quic_ctx_t * ctx) if ((err = quic_send_datagram (udp_session, packets[i]))) goto quicly_error; - quicly_context->packet_allocator-> - free_packet (quicly_context->packet_allocator, packets[i]); + pa->free_packet (pa, packets[i]); } } while (num_packets > 0 && num_packets == max_packets); @@ -796,19 +813,11 @@ quic_expired_timers_dispatch (u32 * expired_timers) * *****************************************************************************/ -/* single-entry session cache */ -struct st_util_session_cache_t -{ - ptls_encrypt_ticket_t super; - uint8_t id[32]; - ptls_iovec_t data; -}; - static int -encrypt_ticket_cb (ptls_encrypt_ticket_t * _self, ptls_t * tls, - int is_encrypt, ptls_buffer_t * dst, ptls_iovec_t src) +quic_encrypt_ticket_cb (ptls_encrypt_ticket_t * _self, ptls_t * tls, + int is_encrypt, ptls_buffer_t * dst, ptls_iovec_t src) { - struct st_util_session_cache_t *self = (void *) _self; + quic_session_cache_t *self = (void *) _self; int ret; if (is_encrypt) @@ -849,64 +858,51 @@ encrypt_ticket_cb (ptls_encrypt_ticket_t * _self, ptls_t * tls, return 0; } -/* *INDENT-OFF* */ -static struct st_util_session_cache_t sc = { - .super = { - .cb = encrypt_ticket_cb, - }, -}; - -static ptls_context_t quic_tlsctx = { - .random_bytes = ptls_openssl_random_bytes, - .get_time = &ptls_get_time, - .key_exchanges = ptls_openssl_key_exchanges, - .cipher_suites = ptls_openssl_cipher_suites, - .certificates = { - .list = NULL, - .count = 0 - }, - .esni = NULL, - .on_client_hello = NULL, - .emit_certificate = NULL, - .sign_certificate = NULL, - .verify_certificate = NULL, - .ticket_lifetime = 86400, - .max_early_data_size = 8192, - .hkdf_label_prefix__obsolete = NULL, - .require_dhe_on_psk = 1, - .encrypt_ticket = &sc.super, -}; -/* *INDENT-ON* */ +typedef struct quicly_ctx_data_ +{ + quicly_context_t quicly_ctx; + char cid_key[17]; + ptls_context_t ptls_ctx; +} quicly_ctx_data_t; static void -allocate_quicly_ctx (application_t * app, u8 is_client) +quic_store_quicly_ctx (application_t * app, u8 is_client) { - struct - { - quicly_context_t _; - char cid_key[17]; - } *ctx_data; + quic_main_t *qm = &quic_main; quicly_context_t *quicly_ctx; ptls_iovec_t key_vec; - QUIC_DBG (2, "Called allocate_quicly_ctx"); - if (app->quicly_ctx) - { - QUIC_DBG (1, "Trying to reallocate quicly_ctx"); - return; - } + return; + + quicly_ctx_data_t *quicly_ctx_data = + clib_mem_alloc (sizeof (quicly_ctx_data_t)); + quicly_ctx = &quicly_ctx_data->quicly_ctx; + ptls_context_t *ptls_ctx = &quicly_ctx_data->ptls_ctx; + ptls_ctx->random_bytes = ptls_openssl_random_bytes; + ptls_ctx->get_time = &ptls_get_time; + ptls_ctx->key_exchanges = ptls_openssl_key_exchanges; + ptls_ctx->cipher_suites = qm->quic_ciphers[qm->default_cipher]; + ptls_ctx->certificates.list = NULL; + ptls_ctx->certificates.count = 0; + ptls_ctx->esni = NULL; + ptls_ctx->on_client_hello = NULL; + ptls_ctx->emit_certificate = NULL; + ptls_ctx->sign_certificate = NULL; + ptls_ctx->verify_certificate = NULL; + ptls_ctx->ticket_lifetime = 86400; + ptls_ctx->max_early_data_size = 8192; + ptls_ctx->hkdf_label_prefix__obsolete = NULL; + ptls_ctx->require_dhe_on_psk = 1; + ptls_ctx->encrypt_ticket = &qm->session_cache.super; - ctx_data = malloc (sizeof (*ctx_data)); - quicly_ctx = &ctx_data->_; app->quicly_ctx = (u64 *) quicly_ctx; memcpy (quicly_ctx, &quicly_spec_context, sizeof (quicly_context_t)); quicly_ctx->max_packet_size = QUIC_MAX_PACKET_SIZE; - quicly_ctx->tls = &quic_tlsctx; + quicly_ctx->tls = ptls_ctx; quicly_ctx->stream_open = &on_stream_open; quicly_ctx->closed_by_peer = &on_closed_by_peer; quicly_ctx->now = &quicly_vpp_now_cb; - quicly_amend_ptls_context (quicly_ctx->tls); quicly_ctx->event_log.mask = 0; /* logs */ @@ -919,13 +915,17 @@ allocate_quicly_ctx (application_t * app, u8 is_client) quicly_ctx->transport_params.max_stream_data.bidi_remote = (QUIC_FIFO_SIZE - 1); /* max_enq is SIZE - 1 */ quicly_ctx->transport_params.max_stream_data.uni = QUIC_INT_MAX; - quicly_ctx->tls->random_bytes (ctx_data->cid_key, 16); - ctx_data->cid_key[16] = 0; - key_vec = ptls_iovec_init (ctx_data->cid_key, strlen (ctx_data->cid_key)); + quicly_ctx->tls->random_bytes (quicly_ctx_data->cid_key, 16); + quicly_ctx_data->cid_key[16] = 0; + key_vec = + ptls_iovec_init (quicly_ctx_data->cid_key, + strlen (quicly_ctx_data->cid_key)); quicly_ctx->cid_encryptor = quicly_new_default_cid_encryptor (&ptls_openssl_bfecb, &ptls_openssl_sha256, key_vec); - if (!is_client && app->tls_key != NULL && app->tls_cert != NULL) + if (is_client) + return; + if (app->tls_key != NULL && app->tls_cert != NULL) { if (load_bio_private_key (quicly_ctx->tls, (char *) app->tls_key)) { @@ -1091,7 +1091,7 @@ quic_connect_new_connection (session_endpoint_cfg_t * sep) ctx->parent_app_id = app_wrk->app_index; cargs->sep_ext.ns_index = app->ns_index; - allocate_quicly_ctx (app, 1 /* is client */ ); + quic_store_quicly_ctx (app, 1 /* is client */ ); if ((error = vnet_connect (cargs))) return error; @@ -1179,7 +1179,7 @@ quic_start_listen (u32 quic_listen_session_index, transport_endpoint_t * tep) app = application_get (app_wrk->app_index); QUIC_DBG (2, "Called quic_start_listen for app %d", app_wrk->app_index); - allocate_quicly_ctx (app, 0 /* is_client */ ); + quic_store_quicly_ctx (app, 0 /* is_client */ ); sep->transport_proto = TRANSPORT_PROTO_UDPC; memset (args, 0, sizeof (*args)); @@ -1504,33 +1504,24 @@ quic_session_connected_callback (u32 quic_app_index, u32 ctx_index, transport_connection_t *tc; app_worker_t *app_wrk; quicly_conn_t *conn; - application_t *app; quic_ctx_t *ctx; u32 thread_index = vlib_get_thread_index (); int ret; + quicly_context_t *quicly_ctx; + ctx = quic_ctx_get (ctx_index, thread_index); if (is_fail) { u32 api_context; - int rv = 0; - 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, api_context); } - return rv; - } - - app_wrk = app_worker_get_if_valid (ctx->parent_app_wrk_id); - if (!app_wrk) - { - QUIC_DBG (1, "Appwrk not found"); - return -1; + return 0; } - app = application_get (app_wrk->app_index); ctx->c_thread_index = thread_index; ctx->c_c_index = ctx_index; @@ -1547,11 +1538,10 @@ quic_session_connected_callback (u32 quic_app_index, u32 ctx_index, tc = session_get_transport (udp_session); quic_build_sockaddr (sa, &salen, &tc->rmt_ip, tc->rmt_port, tc->is_ip4); - ret = - quicly_connect (&ctx->conn, - (quicly_context_t *) app->quicly_ctx, - (char *) ctx->srv_hostname, sa, salen, - &quic_main.next_cid, &quic_main.hs_properties, NULL); + quicly_ctx = quic_get_quicly_ctx_from_ctx (ctx); + ret = quicly_connect (&ctx->conn, quicly_ctx, (char *) ctx->srv_hostname, + sa, salen, &quic_main.next_cid, + &quic_main.hs_properties, NULL); ++quic_main.next_cid.master_id; /* Save context handle in quicly connection */ quic_store_conn_ctx (ctx->conn, ctx); @@ -1822,18 +1812,20 @@ quic_create_quic_session (quic_ctx_t * ctx) } static int -quic_create_connection (quicly_context_t * quicly_ctx, - u32 ctx_index, struct sockaddr *sa, +quic_create_connection (u32 ctx_index, struct sockaddr *sa, socklen_t salen, quicly_decoded_packet_t packet) { clib_bihash_kv_16_8_t kv; quic_ctx_t *ctx; quicly_conn_t *conn; u32 thread_index = vlib_get_thread_index (); + quicly_context_t *quicly_ctx; int rv; /* new connection, accept and create context if packet is valid * TODO: check if socket is actually listening? */ + ctx = quic_ctx_get (ctx_index, thread_index); + quicly_ctx = quic_get_quicly_ctx_from_ctx (ctx); if ((rv = quicly_accept (&conn, quicly_ctx, sa, salen, &packet, ptls_iovec_init (NULL, 0), &quic_main.next_cid, NULL))) @@ -1847,7 +1839,6 @@ quic_create_connection (quicly_context_t * quicly_ctx, assert (conn != NULL); ++quic_main.next_cid.master_id; - ctx = quic_ctx_get (ctx_index, thread_index); /* Save ctx handle in quicly connection */ quic_store_conn_ctx (conn, ctx); ctx->conn = conn; @@ -1865,7 +1856,7 @@ quic_create_connection (quicly_context_t * quicly_ctx, } static int -quic_reset_connection (quicly_context_t * quicly_ctx, u64 udp_session_handle, +quic_reset_connection (u64 udp_session_handle, struct sockaddr *sa, socklen_t salen, quicly_decoded_packet_t packet) { @@ -1878,21 +1869,20 @@ quic_reset_connection (quicly_context_t * quicly_ctx, u64 udp_session_handle, int rv; quicly_datagram_t *dgram; session_t *udp_session; - if (packet.cid.dest.plaintext.node_id == 0 - && packet.cid.dest.plaintext.thread_id == 0) - { - dgram = quicly_send_stateless_reset (quicly_ctx, sa, salen, - &packet.cid.dest.plaintext); - if (dgram == NULL) - return 1; - udp_session = session_get_from_handle (udp_session_handle); - rv = quic_send_datagram (udp_session, dgram); - if (svm_fifo_set_event (udp_session->tx_fifo)) - session_send_io_evt_to_thread (udp_session->tx_fifo, - SESSION_IO_EVT_TX); - return rv; - } - return 0; + quicly_context_t *quicly_ctx; + if (packet.cid.dest.plaintext.node_id != 0 + || packet.cid.dest.plaintext.thread_id != 0) + return 0; + quicly_ctx = quic_get_quicly_ctx_from_udp (udp_session_handle); + dgram = quicly_send_stateless_reset (quicly_ctx, sa, salen, + &packet.cid.dest.plaintext); + if (dgram == NULL) + return 1; + udp_session = session_get_from_handle (udp_session_handle); + rv = quic_send_datagram (udp_session, dgram); + if (svm_fifo_set_event (udp_session->tx_fifo)) + session_send_io_evt_to_thread (udp_session->tx_fifo, SESSION_IO_EVT_TX); + return rv; } static int @@ -1916,6 +1906,8 @@ quic_app_rx_callback (session_t * udp_session) u64 udp_session_handle = session_handle (udp_session); int rv = 0; u32 thread_index = vlib_get_thread_index (); + quicly_context_t *quicly_ctx; + app = application_get_if_valid (app_index); if (!app) { @@ -1964,9 +1956,9 @@ quic_app_rx_callback (session_t * udp_session) rv = 0; quic_build_sockaddr (sa, &salen, &ph.rmt_ip, ph.rmt_port, ph.is_ip4); - plen = quicly_decode_packet ((quicly_context_t *) app->quicly_ctx, - &packet, data, ph.data_length); + quicly_ctx = quic_get_quicly_ctx_from_udp (udp_session_handle); + plen = quicly_decode_packet (quicly_ctx, &packet, data, ph.data_length); if (plen != SIZE_MAX) { @@ -1997,8 +1989,7 @@ quic_app_rx_callback (session_t * udp_session) if (ctx->udp_session_handle == udp_session_handle) { /* Right ctx found, create conn & remove from pool */ - quic_create_connection ((quicly_context_t *) app->quicly_ctx, - *ctx_index_ptr, sa, salen, packet); + quic_create_connection (*ctx_index_ptr, sa, salen, packet); pool_put (opening_ctx_pool, ctx_index_ptr); goto ctx_search_done; } @@ -2008,8 +1999,7 @@ quic_app_rx_callback (session_t * udp_session) } else { - quic_reset_connection ((quicly_context_t *) app->quicly_ctx, - udp_session_handle, sa, salen, packet); + quic_reset_connection (udp_session_handle, sa, salen, packet); } } ctx_search_done: @@ -2095,6 +2085,15 @@ static const transport_proto_vft_t quic_proto = { }; /* *INDENT-ON* */ +static void +quic_register_cipher_suite (quic_crypto_engine_t type, + ptls_cipher_suite_t ** ciphers) +{ + quic_main_t *qm = &quic_main; + vec_validate (qm->quic_ciphers, type); + qm->quic_ciphers[type] = ciphers; +} + static clib_error_t * quic_init (vlib_main_t * vm) { @@ -2148,12 +2147,17 @@ quic_init (vlib_main_t * vm) 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_register_cipher_suite (CRYPTO_ENGINE_VPP, vpp_crypto_cipher_suites); + quic_register_cipher_suite (CRYPTO_ENGINE_PICOTLS, + ptls_openssl_cipher_suites); + qm->default_cipher = CRYPTO_ENGINE_PICOTLS; vec_free (a->name); return 0; } @@ -2165,35 +2169,27 @@ quic_plugin_crypto_command_fn (vlib_main_t * vm, unformat_input_t * input, vlib_cli_command_t * cmd) { - while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT) - { - if (unformat (input, "vpp")) - { - quic_tlsctx.cipher_suites = vpp_crypto_cipher_suites; - return 0; - } - else if (unformat (input, "picotls")) - { - quic_tlsctx.cipher_suites = ptls_openssl_cipher_suites; - return 0; - } - else - return clib_error_return (0, "unknown input '%U'", - format_unformat_error, input); - } - - return clib_error_return (0, "unknown input '%U'", - format_unformat_error, input); + quic_main_t *qm = &quic_main; + if (unformat_check_input (input) == UNFORMAT_END_OF_INPUT) + return clib_error_return (0, "unknown input '%U'", + format_unformat_error, input); + if (unformat (input, "vpp")) + qm->default_cipher = CRYPTO_ENGINE_VPP; + else if (unformat (input, "picotls")) + qm->default_cipher = CRYPTO_ENGINE_PICOTLS; + else + return clib_error_return (0, "unknown input '%U'", + format_unformat_error, input); + return 0; } /* *INDENT-OFF* */ 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, + .path = "quic set crypto api", + .short_help = "quic set crypto api [picotls, vpp]", + .function = quic_plugin_crypto_command_fn, }; - VLIB_PLUGIN_REGISTER () = { .version = VPP_BUILD_VER, |