X-Git-Url: https://gerrit.fd.io/r/gitweb?a=blobdiff_plain;f=src%2Fvnet%2Ftls%2Ftls.c;h=808c151dac585baced4df045bbe825c2fba61371;hb=refs%2Fchanges%2F76%2F32076%2F14;hp=88ce3591bb6e1d2b033af7a2c7c37c1b86a9cb83;hpb=07063b8ea39b05d5d7bb00ad2a2363b11792c571;p=vpp.git diff --git a/src/vnet/tls/tls.c b/src/vnet/tls/tls.c index 88ce3591bb6..808c151dac5 100644 --- a/src/vnet/tls/tls.c +++ b/src/vnet/tls/tls.c @@ -74,15 +74,6 @@ tls_add_vpp_q_tx_evt (session_t * s) return 0; } -int -tls_add_vpp_q_builtin_tx_evt (session_t * s) -{ - if (svm_fifo_set_event (s->tx_fifo)) - session_send_io_evt_to_thread_custom (s, s->thread_index, - SESSION_IO_EVT_BUILTIN_TX); - return 0; -} - static inline int tls_add_app_q_evt (app_worker_t * app, session_t * app_session) { @@ -217,7 +208,7 @@ tls_notify_app_accept (tls_ctx_t * ctx) } int -tls_notify_app_connected (tls_ctx_t * ctx, u8 is_failed) +tls_notify_app_connected (tls_ctx_t * ctx, session_error_t err) { session_t *app_session; app_worker_t *app_wrk; @@ -229,38 +220,56 @@ tls_notify_app_connected (tls_ctx_t * ctx, u8 is_failed) return -1; } - if (is_failed) - goto failed; + if (err) + { + /* Free app session pre-allocated when transport was established */ + if (ctx->tls_type == TRANSPORT_PROTO_TLS) + session_free (session_get (ctx->c_s_index, ctx->c_thread_index)); + goto failed; + } + + /* For DTLS the app session is not preallocated because the underlying udp + * session might migrate to a different worker during the handshake */ + if (ctx->tls_type == TRANSPORT_PROTO_DTLS) + { + session_type_t st; + app_session = session_alloc (ctx->c_thread_index); + app_session->session_state = SESSION_STATE_CREATED; + ctx->c_s_index = app_session->session_index; + st = + session_type_from_proto_and_ip (TRANSPORT_PROTO_DTLS, ctx->tcp_is_ip4); + app_session->session_type = st; + app_session->connection_index = ctx->tls_ctx_handle; + } + else + { + app_session = session_get (ctx->c_s_index, ctx->c_thread_index); + } - app_session = session_get (ctx->c_s_index, ctx->c_thread_index); app_session->app_wrk_index = ctx->parent_app_wrk_index; - app_session->connection_index = ctx->tls_ctx_handle; - app_session->session_type = - session_type_from_proto_and_ip (TRANSPORT_PROTO_TLS, ctx->tcp_is_ip4); - if (app_worker_init_connected (app_wrk, app_session)) + if ((err = app_worker_init_connected (app_wrk, app_session))) goto failed; - app_session->session_state = SESSION_STATE_CONNECTING; + app_session->session_state = SESSION_STATE_READY; if (app_worker_connect_notify (app_wrk, app_session, - ctx->parent_app_api_context)) + SESSION_E_NONE, ctx->parent_app_api_context)) { TLS_DBG (1, "failed to notify app"); + app_session->session_state = SESSION_STATE_CONNECTING; tls_disconnect (ctx->tls_ctx_handle, vlib_get_thread_index ()); return -1; } ctx->app_session_handle = session_handle (app_session); - app_session->session_state = SESSION_STATE_READY; return 0; failed: - /* Free app session pre-allocated when transport was established */ - session_free (session_get (ctx->c_s_index, ctx->c_thread_index)); ctx->no_app_session = 1; tls_disconnect (ctx->tls_ctx_handle, vlib_get_thread_index ()); - return app_worker_connect_notify (app_wrk, 0, ctx->parent_app_api_context); + return app_worker_connect_notify (app_wrk, 0, err, + ctx->parent_app_api_context); } static inline void @@ -271,8 +280,15 @@ tls_ctx_parse_handle (u32 ctx_handle, u32 * ctx_index, u32 * engine_type) } static inline crypto_engine_type_t -tls_get_engine_type (crypto_engine_type_t preferred) +tls_get_engine_type (crypto_engine_type_t requested, + crypto_engine_type_t preferred) { + if (requested != CRYPTO_ENGINE_NONE) + { + if (tls_vfts[requested].ctx_alloc) + return requested; + return CRYPTO_ENGINE_NONE; + } if (!tls_vfts[preferred].ctx_alloc) return tls_get_available_engine (); return preferred; @@ -286,6 +302,28 @@ tls_ctx_alloc (crypto_engine_type_t engine_type) return (((u32) engine_type << TLS_ENGINE_TYPE_SHIFT) | ctx_index); } +static inline u32 +tls_ctx_alloc_w_thread (crypto_engine_type_t engine_type, u32 thread_index) +{ + u32 ctx_index; + ctx_index = tls_vfts[engine_type].ctx_alloc_w_thread (thread_index); + return (((u32) engine_type << TLS_ENGINE_TYPE_SHIFT) | ctx_index); +} + +static inline u32 +tls_ctx_attach (crypto_engine_type_t engine_type, u32 thread_index, void *ctx) +{ + u32 ctx_index; + ctx_index = tls_vfts[engine_type].ctx_attach (thread_index, ctx); + return (((u32) engine_type << TLS_ENGINE_TYPE_SHIFT) | ctx_index); +} + +static inline void * +tls_ctx_detach (tls_ctx_t *ctx) +{ + return tls_vfts[ctx->tls_ctx_engine].ctx_detach (ctx); +} + static inline tls_ctx_t * tls_ctx_get (u32 ctx_handle) { @@ -315,9 +353,15 @@ tls_ctx_init_client (tls_ctx_t * ctx) } static inline int -tls_ctx_write (tls_ctx_t * ctx, session_t * app_session) +tls_ctx_write (tls_ctx_t * ctx, session_t * app_session, + transport_send_params_t * sp) { - return tls_vfts[ctx->tls_ctx_engine].ctx_write (ctx, app_session); + u32 n_wrote; + + sp->max_burst_size = sp->max_burst_size * TRANSPORT_PACER_MIN_MSS; + n_wrote = tls_vfts[ctx->tls_ctx_engine].ctx_write (ctx, app_session, sp); + sp->max_burst_size = n_wrote; + return n_wrote > 0 ? clib_max (n_wrote / TRANSPORT_PACER_MIN_MSS, 1) : 0; } static inline int @@ -445,22 +489,38 @@ tls_app_rx_callback (session_t * tls_session) { tls_ctx_t *ctx; + /* DTLS session migrating, wait for next notification */ + if (PREDICT_FALSE (tls_session->flags & SESSION_F_IS_MIGRATING)) + return 0; + ctx = tls_ctx_get (tls_session->opaque); tls_ctx_read (ctx, tls_session); return 0; } int -tls_session_connected_callback (u32 tls_app_index, u32 ho_ctx_index, - session_t * tls_session, u8 is_fail) +tls_app_tx_callback (session_t * tls_session) +{ + tls_ctx_t *ctx; + + ctx = tls_ctx_get (tls_session->opaque); + transport_connection_reschedule (&ctx->connection); + + return 0; +} + +int +tls_session_connected_cb (u32 tls_app_index, u32 ho_ctx_index, + session_t *tls_session, session_error_t err) { session_t *app_session; tls_ctx_t *ho_ctx, *ctx; + session_type_t st; u32 ctx_handle; ho_ctx = tls_ctx_half_open_get (ho_ctx_index); - if (is_fail) + if (err) { app_worker_t *app_wrk; u32 api_context; @@ -469,8 +529,8 @@ tls_session_connected_callback (u32 tls_app_index, u32 ho_ctx_index, app_wrk = app_worker_get_if_valid (ho_ctx->parent_app_wrk_index); if (app_wrk) { - api_context = ho_ctx->c_s_index; - app_worker_connect_notify (app_wrk, 0, api_context); + api_context = ho_ctx->parent_app_api_context; + app_worker_connect_notify (app_wrk, 0, err, api_context); } tls_ctx_half_open_reader_unlock (); tls_ctx_half_open_free (ho_ctx_index); @@ -488,7 +548,7 @@ tls_session_connected_callback (u32 tls_app_index, u32 ho_ctx_index, ctx->c_flags |= TRANSPORT_CONNECTION_F_NO_LOOKUP; TLS_DBG (1, "TCP connect for %u returned %u. New connection [%u]%x", - ho_ctx_index, is_fail, vlib_get_thread_index (), + ho_ctx_index, err, vlib_get_thread_index (), (ctx) ? ctx_handle : ~0); ctx->tls_session_handle = session_handle (tls_session); @@ -500,17 +560,55 @@ tls_session_connected_callback (u32 tls_app_index, u32 ho_ctx_index, app_session = session_alloc (ctx->c_thread_index); app_session->session_state = SESSION_STATE_CREATED; ctx->c_s_index = app_session->session_index; + st = session_type_from_proto_and_ip (TRANSPORT_PROTO_TLS, ctx->tcp_is_ip4); + app_session->session_type = st; + app_session->connection_index = ctx->tls_ctx_handle; + + return tls_ctx_init_client (ctx); +} + +int +dtls_session_connected_cb (u32 app_wrk_index, u32 ctx_handle, session_t *us, + session_error_t err) +{ + tls_ctx_t *ctx; + + ctx = tls_ctx_get_w_thread (ctx_handle, 1 /* udp allocs on thread 1 */); + + ctx->tls_session_handle = session_handle (us); + ctx->c_flags |= TRANSPORT_CONNECTION_F_NO_LOOKUP; + us->opaque = ctx_handle; + + /* We don't preallocate the app session because the udp session might + * actually migrate to a different worker at the end of the handshake */ return tls_ctx_init_client (ctx); } +int +tls_session_connected_callback (u32 tls_app_index, u32 ho_ctx_index, + session_t *tls_session, session_error_t err) +{ + if (session_get_transport_proto (tls_session) == TRANSPORT_PROTO_TCP) + return tls_session_connected_cb (tls_app_index, ho_ctx_index, tls_session, + err); + else + return dtls_session_connected_cb (tls_app_index, ho_ctx_index, tls_session, + err); +} + static void tls_app_session_cleanup (session_t * s, session_cleanup_ntf_t ntf) { tls_ctx_t *ctx; if (ntf == SESSION_CLEANUP_TRANSPORT) - return; + { + /* Allow cleanup of tcp session */ + if (s->session_state == SESSION_STATE_TRANSPORT_DELETED) + session_close (s); + return; + } ctx = tls_ctx_get (s->opaque); if (!ctx->no_app_session) @@ -518,7 +616,42 @@ tls_app_session_cleanup (session_t * s, session_cleanup_ntf_t ntf) tls_ctx_free (ctx); } -/* *INDENT-OFF* */ +static void +dtls_migrate_udp (void *arg) +{ + tls_ctx_t *ctx = (tls_ctx_t *) arg; + u32 ctx_handle, thread_index; + session_t *us; + + thread_index = session_thread_from_handle (ctx->tls_session_handle); + ASSERT (thread_index == vlib_get_thread_index ()); + + ctx_handle = tls_ctx_attach (ctx->tls_ctx_engine, thread_index, ctx); + ctx = tls_ctx_get_w_thread (ctx_handle, thread_index); + ctx->tls_ctx_handle = ctx_handle; + + us = session_get_from_handle (ctx->tls_session_handle); + us->opaque = ctx_handle; + us->flags &= ~SESSION_F_IS_MIGRATING; + if (svm_fifo_max_dequeue (us->tx_fifo)) + session_send_io_evt_to_thread (us->tx_fifo, SESSION_IO_EVT_TX); +} + +static void +dtls_session_migrate_callback (session_t *us, session_handle_t new_sh) +{ + u32 new_thread = session_thread_from_handle (new_sh); + tls_ctx_t *ctx; + + /* Migrate dtls context to new thread */ + ctx = tls_ctx_get_w_thread (us->opaque, us->thread_index); + ctx->tls_session_handle = new_sh; + ctx = tls_ctx_detach (ctx); + ctx->is_migrated = 1; + + session_send_rpc_evt_to_thread (new_thread, dtls_migrate_udp, (void *) ctx); +} + static session_cb_vft_t tls_app_cb_vft = { .session_accept_callback = tls_session_accept_callback, .session_disconnect_callback = tls_session_disconnect_callback, @@ -527,16 +660,18 @@ static session_cb_vft_t tls_app_cb_vft = { .add_segment_callback = tls_add_segment_callback, .del_segment_callback = tls_del_segment_callback, .builtin_app_rx_callback = tls_app_rx_callback, + .builtin_app_tx_callback = tls_app_tx_callback, + .session_migrate_callback = dtls_session_migrate_callback, .session_cleanup_callback = tls_app_session_cleanup, }; -/* *INDENT-ON* */ int tls_connect (transport_endpoint_cfg_t * tep) { vnet_connect_args_t _cargs = { {}, }, *cargs = &_cargs; - session_endpoint_cfg_t *sep; + transport_endpt_crypto_cfg_t *ccfg; crypto_engine_type_t engine_type; + session_endpoint_cfg_t *sep; tls_main_t *tm = &tls_main; app_worker_t *app_wrk; application_t *app; @@ -545,9 +680,14 @@ tls_connect (transport_endpoint_cfg_t * tep) int rv; sep = (session_endpoint_cfg_t *) tep; + if (!sep->ext_cfg) + return -1; + app_wrk = app_worker_get (sep->app_wrk_index); app = application_get (app_wrk->app_index); - engine_type = tls_get_engine_type (app->tls_engine); + + ccfg = &sep->ext_cfg->crypto; + engine_type = tls_get_engine_type (ccfg->crypto_engine, app->tls_engine); if (engine_type == CRYPTO_ENGINE_NONE) { clib_warning ("No tls engine_type available"); @@ -559,9 +699,11 @@ tls_connect (transport_endpoint_cfg_t * tep) ctx->parent_app_wrk_index = sep->app_wrk_index; ctx->parent_app_api_context = sep->opaque; ctx->tcp_is_ip4 = sep->is_ip4; - if (sep->hostname) + ctx->tls_type = sep->transport_proto; + ctx->ckpair_index = ccfg->ckpair_index; + if (ccfg->hostname[0]) { - ctx->srv_hostname = format (0, "%v", sep->hostname); + ctx->srv_hostname = format (0, "%s", ccfg->hostname); vec_terminate_c_string (ctx->srv_hostname); } tls_ctx_half_open_reader_unlock (); @@ -596,6 +738,7 @@ u32 tls_start_listen (u32 app_listener_index, transport_endpoint_t * tep) { vnet_listen_args_t _bargs, *args = &_bargs; + transport_endpt_crypto_cfg_t *ccfg; app_worker_t *app_wrk; tls_main_t *tm = &tls_main; session_handle_t tls_al_handle; @@ -609,9 +752,14 @@ tls_start_listen (u32 app_listener_index, transport_endpoint_t * tep) u32 lctx_index; sep = (session_endpoint_cfg_t *) tep; + if (!sep->ext_cfg) + return -1; + app_wrk = app_worker_get (sep->app_wrk_index); app = application_get (app_wrk->app_index); - engine_type = tls_get_engine_type (app->tls_engine); + + ccfg = &sep->ext_cfg->crypto; + engine_type = tls_get_engine_type (ccfg->crypto_engine, app->tls_engine); if (engine_type == CRYPTO_ENGINE_NONE) { clib_warning ("No tls engine_type available"); @@ -623,6 +771,11 @@ tls_start_listen (u32 app_listener_index, transport_endpoint_t * tep) args->sep_ext = *sep; args->sep_ext.ns_index = app->ns_index; args->sep_ext.transport_proto = TRANSPORT_PROTO_TCP; + if (sep->transport_proto == TRANSPORT_PROTO_DTLS) + { + args->sep_ext.transport_proto = TRANSPORT_PROTO_UDP; + args->sep_ext.transport_flags = TRANSPORT_CFG_F_CONNECTED; + } if (vnet_listen (args)) return -1; @@ -640,7 +793,8 @@ tls_start_listen (u32 app_listener_index, transport_endpoint_t * tep) lctx->app_session_handle = listen_session_get_handle (app_listener); lctx->tcp_is_ip4 = sep->is_ip4; lctx->tls_ctx_engine = engine_type; - lctx->ckpair_index = sep->ckpair_index; + lctx->tls_type = sep->transport_proto; + lctx->ckpair_index = ccfg->ckpair_index; if (tls_vfts[engine_type].ctx_start_listen (lctx)) { @@ -679,7 +833,7 @@ tls_stop_listen (u32 lctx_index) sep.fib_index = lc->fib_index; sep.port = lc->lcl_port; sep.is_ip4 = lc->is_ip4; - sep.transport_proto = TRANSPORT_PROTO_TLS; + sep.transport_proto = lctx->tls_type; clib_memcpy (&sep.ip, &lc->lcl_ip, sizeof (lc->lcl_ip)); session_lookup_del_session_endpoint2 (&sep); @@ -715,7 +869,7 @@ tls_listener_get (u32 listener_index) } int -tls_custom_tx_callback (void *session, u32 max_burst_size) +tls_custom_tx_callback (void *session, transport_send_params_t * sp) { session_t *app_session = (session_t *) session; tls_ctx_t *ctx; @@ -724,23 +878,25 @@ tls_custom_tx_callback (void *session, u32 max_burst_size) >= SESSION_STATE_TRANSPORT_CLOSED)) return 0; + sp->flags = 0; ctx = tls_ctx_get (app_session->connection_index); - tls_ctx_write (ctx, app_session); - return 0; + return tls_ctx_write (ctx, app_session, sp); } u8 * format_tls_ctx (u8 * s, va_list * args) { - u32 tcp_si, tcp_ti, ctx_index, ctx_engine, app_si, app_ti; + u32 tcp_si, tcp_ti, ctx_index, ctx_engine; tls_ctx_t *ctx = va_arg (*args, tls_ctx_t *); + char *proto; + proto = ctx->tls_type == TRANSPORT_PROTO_TLS ? "TLS" : "DTLS"; session_parse_handle (ctx->tls_session_handle, &tcp_si, &tcp_ti); tls_ctx_parse_handle (ctx->tls_ctx_handle, &ctx_index, &ctx_engine); - session_parse_handle (ctx->app_session_handle, &app_si, &app_ti); - s = format (s, "[%d:%d][TLS] app_wrk %u index %u engine %u tcp %d:%d", - app_ti, app_si, ctx->parent_app_wrk_index, ctx_index, - ctx_engine, tcp_ti, tcp_si); + s = + format (s, "[%d:%d][%s] app_wrk %u index %u engine %u ts %d:%d", + ctx->c_thread_index, ctx->c_s_index, proto, + ctx->parent_app_wrk_index, ctx_index, ctx_engine, tcp_ti, tcp_si); return s; } @@ -750,16 +906,17 @@ format_tls_listener_ctx (u8 * s, va_list * args) { session_t *tls_listener; app_listener_t *al; - u32 app_si, app_ti; tls_ctx_t *ctx; + char *proto; ctx = va_arg (*args, tls_ctx_t *); + proto = ctx->tls_type == TRANSPORT_PROTO_TLS ? "TLS" : "DTLS"; al = app_listener_get_w_handle (ctx->tls_session_handle); tls_listener = app_listener_get_session (al); - session_parse_handle (ctx->app_session_handle, &app_si, &app_ti); - s = format (s, "[%d:%d][TLS] app_wrk %u engine %u tcp %d:%d", - app_ti, app_si, ctx->parent_app_wrk_index, ctx->tls_ctx_engine, + s = format (s, "[%d:%d][%s] app_wrk %u engine %u ts %d:%d", + ctx->c_thread_index, ctx->c_s_index, proto, + ctx->parent_app_wrk_index, ctx->tls_ctx_engine, tls_listener->thread_index, tls_listener->session_index); return s; @@ -772,13 +929,22 @@ format_tls_ctx_state (u8 * s, va_list * args) session_t *ts; ctx = va_arg (*args, tls_ctx_t *); - ts = session_get_from_handle (ctx->app_session_handle); + ts = session_get (ctx->c_s_index, ctx->c_thread_index); if (ts->session_state == SESSION_STATE_LISTENING) s = format (s, "%s", "LISTEN"); - else if (tls_ctx_handshake_is_over (ctx)) - s = format (s, "%s", "ESTABLISHED"); else - s = format (s, "%s", "HANDSHAKE"); + { + if (ts->session_state >= SESSION_STATE_TRANSPORT_CLOSED) + s = format (s, "%s", "CLOSED"); + else if (ts->session_state == SESSION_STATE_APP_CLOSED) + s = format (s, "%s", "APP-CLOSED"); + else if (ts->session_state >= SESSION_STATE_TRANSPORT_CLOSING) + s = format (s, "%s", "CLOSING"); + else if (tls_ctx_handshake_is_over (ctx)) + s = format (s, "%s", "ESTABLISHED"); + else + s = format (s, "%s", "HANDSHAKE"); + } return s; } @@ -795,10 +961,11 @@ format_tls_connection (u8 * s, va_list * args) if (!ctx) return s; - s = format (s, "%-50U", format_tls_ctx, ctx); + s = format (s, "%-" SESSION_CLI_ID_LEN "U", format_tls_ctx, ctx); if (verbose) { - s = format (s, "%-15U", format_tls_ctx_state, ctx); + s = format (s, "%-" SESSION_CLI_STATE_LEN "U", format_tls_ctx_state, + ctx); if (verbose > 1) s = format (s, "\n"); } @@ -813,9 +980,9 @@ format_tls_listener (u8 * s, va_list * args) u32 verbose = va_arg (*args, u32); tls_ctx_t *ctx = tls_listener_ctx_get (tc_index); - s = format (s, "%-50U", format_tls_listener_ctx, ctx); + s = format (s, "%-" SESSION_CLI_ID_LEN "U", format_tls_listener_ctx, ctx); if (verbose) - s = format (s, "%-15U", format_tls_ctx_state, ctx); + s = format (s, "%-" SESSION_CLI_STATE_LEN "U", format_tls_ctx_state, ctx); return s; } @@ -854,8 +1021,56 @@ tls_transport_listener_endpoint_get (u32 ctx_handle, session_get_endpoint (tls_listener, tep, is_lcl); } -/* *INDENT-OFF* */ +static clib_error_t * +tls_enable (vlib_main_t * vm, u8 is_en) +{ + u32 add_segment_size = 256 << 20, first_seg_size = 32 << 20; + vnet_app_detach_args_t _da, *da = &_da; + vnet_app_attach_args_t _a, *a = &_a; + u64 options[APP_OPTIONS_N_OPTIONS]; + tls_main_t *tm = &tls_main; + u32 fifo_size = 128 << 12; + + if (!is_en) + { + da->app_index = tm->app_index; + da->api_client_index = APP_INVALID_INDEX; + vnet_application_detach (da); + return 0; + } + + first_seg_size = tm->first_seg_size ? tm->first_seg_size : first_seg_size; + fifo_size = tm->fifo_size ? tm->fifo_size : fifo_size; + + clib_memset (a, 0, sizeof (*a)); + clib_memset (options, 0, sizeof (options)); + + a->session_cb_vft = &tls_app_cb_vft; + a->api_client_index = APP_INVALID_INDEX; + a->options = options; + a->name = format (0, "tls"); + a->options[APP_OPTIONS_SEGMENT_SIZE] = first_seg_size; + a->options[APP_OPTIONS_ADD_SEGMENT_SIZE] = add_segment_size; + a->options[APP_OPTIONS_RX_FIFO_SIZE] = fifo_size; + a->options[APP_OPTIONS_TX_FIFO_SIZE] = fifo_size; + 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 tls app"); + return clib_error_return (0, "failed to attach tls app"); + } + + tm->app_index = a->app_index; + vec_free (a->name); + + return 0; +} + static const transport_proto_vft_t tls_proto = { + .enable = tls_enable, .connect = tls_connect, .close = tls_disconnect, .start_listen = tls_start_listen, @@ -875,7 +1090,95 @@ static const transport_proto_vft_t tls_proto = { .service_type = TRANSPORT_SERVICE_APP, }, }; -/* *INDENT-ON* */ + +int +dtls_connect (transport_endpoint_cfg_t *tep) +{ + vnet_connect_args_t _cargs = { {}, }, *cargs = &_cargs; + transport_endpt_crypto_cfg_t *ccfg; + crypto_engine_type_t engine_type; + session_endpoint_cfg_t *sep; + tls_main_t *tm = &tls_main; + app_worker_t *app_wrk; + application_t *app; + tls_ctx_t *ctx; + u32 ctx_handle; + int rv; + + sep = (session_endpoint_cfg_t *) tep; + if (!sep->ext_cfg) + return -1; + + app_wrk = app_worker_get (sep->app_wrk_index); + app = application_get (app_wrk->app_index); + + ccfg = &sep->ext_cfg->crypto; + engine_type = tls_get_engine_type (ccfg->crypto_engine, app->tls_engine); + if (engine_type == CRYPTO_ENGINE_NONE) + { + clib_warning ("No tls engine_type available"); + return -1; + } + + ctx_handle = tls_ctx_alloc_w_thread (engine_type, 1 /* because of udp */); + ctx = tls_ctx_get_w_thread (ctx_handle, 1); + ctx->parent_app_wrk_index = sep->app_wrk_index; + ctx->parent_app_api_context = sep->opaque; + ctx->tcp_is_ip4 = sep->is_ip4; + ctx->ckpair_index = ccfg->ckpair_index; + ctx->tls_type = sep->transport_proto; + ctx->tls_ctx_handle = ctx_handle; + if (ccfg->hostname[0]) + { + ctx->srv_hostname = format (0, "%s", ccfg->hostname); + vec_terminate_c_string (ctx->srv_hostname); + } + + app_worker_alloc_connects_segment_manager (app_wrk); + ctx->tls_ctx_engine = engine_type; + + clib_memcpy_fast (&cargs->sep, sep, sizeof (session_endpoint_t)); + cargs->sep.transport_proto = TRANSPORT_PROTO_UDP; + cargs->app_index = tm->app_index; + cargs->api_context = ctx_handle; + cargs->sep_ext.ns_index = app->ns_index; + cargs->sep_ext.transport_flags = TRANSPORT_CFG_F_CONNECTED; + if ((rv = vnet_connect (cargs))) + return rv; + + TLS_DBG (1, "New DTLS connect request %x engine %d", ctx_handle, + engine_type); + return 0; +} + +static void +dtls_cleanup_callback (u32 ctx_index, u32 thread_index) +{ + /* No op */ +} + +static const transport_proto_vft_t dtls_proto = { + .enable = 0, + .connect = dtls_connect, + .close = tls_disconnect, + .start_listen = tls_start_listen, + .stop_listen = tls_stop_listen, + .get_connection = tls_connection_get, + .get_listener = tls_listener_get, + .custom_tx = tls_custom_tx_callback, + .cleanup = dtls_cleanup_callback, + .format_connection = format_tls_connection, + .format_half_open = format_tls_half_open, + .format_listener = format_tls_listener, + .get_transport_endpoint = tls_transport_endpoint_get, + .get_transport_listener_endpoint = tls_transport_listener_endpoint_get, + .transport_options = { + .name = "dtls", + .short_name = "D", + .tx_type = TRANSPORT_TX_INTERNAL, + .service_type = TRANSPORT_SERVICE_APP, + }, +}; void tls_register_engine (const tls_engine_vft_t * vft, crypto_engine_type_t type) @@ -887,42 +1190,15 @@ tls_register_engine (const tls_engine_vft_t * vft, crypto_engine_type_t type) static clib_error_t * tls_init (vlib_main_t * vm) { - u32 add_segment_size = 256 << 20, first_seg_size = 32 << 20; vlib_thread_main_t *vtm = vlib_get_thread_main (); - u32 num_threads, fifo_size = 128 << 10; - vnet_app_attach_args_t _a, *a = &_a; - u64 options[APP_OPTIONS_N_OPTIONS]; tls_main_t *tm = &tls_main; + u32 num_threads; - first_seg_size = tm->first_seg_size ? tm->first_seg_size : first_seg_size; - fifo_size = tm->fifo_size ? tm->fifo_size : fifo_size; num_threads = 1 /* main thread */ + vtm->n_threads; - clib_memset (a, 0, sizeof (*a)); - clib_memset (options, 0, sizeof (options)); - - a->session_cb_vft = &tls_app_cb_vft; - a->api_client_index = APP_INVALID_INDEX; - a->options = options; - a->name = format (0, "tls"); - a->options[APP_OPTIONS_SEGMENT_SIZE] = first_seg_size; - a->options[APP_OPTIONS_ADD_SEGMENT_SIZE] = add_segment_size; - a->options[APP_OPTIONS_RX_FIFO_SIZE] = fifo_size; - a->options[APP_OPTIONS_TX_FIFO_SIZE] = fifo_size; - 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 tls app"); - return clib_error_return (0, "failed to attach tls app"); - } - if (!tm->ca_cert_path) tm->ca_cert_path = TLS_CA_CERT_PATH; - tm->app_index = a->app_index; clib_rwlock_init (&tm->half_open_rwlock); vec_validate (tm->rx_bufs, num_threads - 1); @@ -932,7 +1208,11 @@ tls_init (vlib_main_t * vm) FIB_PROTOCOL_IP4, ~0); transport_register_protocol (TRANSPORT_PROTO_TLS, &tls_proto, FIB_PROTOCOL_IP6, ~0); - vec_free (a->name); + + transport_register_protocol (TRANSPORT_PROTO_DTLS, &dtls_proto, + FIB_PROTOCOL_IP4, ~0); + transport_register_protocol (TRANSPORT_PROTO_DTLS, &dtls_proto, + FIB_PROTOCOL_IP6, ~0); return 0; }