| /* |
| * Copyright (c) 2018-2019 Cisco and/or its affiliates. |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at: |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| #include <vnet/session/application_interface.h> |
| #include <vppinfra/lock.h> |
| #include <vnet/tls/tls.h> |
| |
| static tls_main_t tls_main; |
| static tls_engine_vft_t *tls_vfts; |
| |
| #define TLS_INVALID_HANDLE ~0 |
| #define TLS_IDX_MASK 0x00FFFFFF |
| #define TLS_ENGINE_TYPE_SHIFT 29 |
| |
| void tls_disconnect (u32 ctx_handle, u32 thread_index); |
| |
| void |
| tls_disconnect_transport (tls_ctx_t * ctx) |
| { |
| vnet_disconnect_args_t a = { |
| .handle = ctx->tls_session_handle, |
| .app_index = tls_main.app_index, |
| }; |
| |
| if (vnet_disconnect_session (&a)) |
| clib_warning ("disconnect returned"); |
| } |
| |
| tls_engine_type_t |
| tls_get_available_engine (void) |
| { |
| int i; |
| for (i = 0; i < vec_len (tls_vfts); i++) |
| { |
| if (tls_vfts[i].ctx_alloc) |
| return i; |
| } |
| return TLS_ENGINE_NONE; |
| } |
| |
| int |
| tls_add_vpp_q_rx_evt (session_t * s) |
| { |
| if (svm_fifo_set_event (s->rx_fifo)) |
| session_send_io_evt_to_thread (s->rx_fifo, SESSION_IO_EVT_RX); |
| return 0; |
| } |
| |
| int |
| tls_add_vpp_q_builtin_rx_evt (session_t * s) |
| { |
| if (svm_fifo_set_event (s->rx_fifo)) |
| session_send_io_evt_to_thread (s->rx_fifo, SESSION_IO_EVT_BUILTIN_RX); |
| return 0; |
| } |
| |
| int |
| tls_add_vpp_q_tx_evt (session_t * s) |
| { |
| if (svm_fifo_set_event (s->tx_fifo)) |
| session_send_io_evt_to_thread (s->tx_fifo, SESSION_IO_EVT_TX); |
| 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) |
| { |
| return app_worker_lock_and_send_event (app, app_session, SESSION_IO_EVT_RX); |
| } |
| |
| u32 |
| tls_listener_ctx_alloc (void) |
| { |
| tls_main_t *tm = &tls_main; |
| tls_ctx_t *ctx; |
| |
| pool_get (tm->listener_ctx_pool, ctx); |
| clib_memset (ctx, 0, sizeof (*ctx)); |
| return ctx - tm->listener_ctx_pool; |
| } |
| |
| void |
| tls_listener_ctx_free (tls_ctx_t * ctx) |
| { |
| if (CLIB_DEBUG) |
| memset (ctx, 0xfb, sizeof (*ctx)); |
| pool_put (tls_main.listener_ctx_pool, ctx); |
| } |
| |
| tls_ctx_t * |
| tls_listener_ctx_get (u32 ctx_index) |
| { |
| return pool_elt_at_index (tls_main.listener_ctx_pool, ctx_index); |
| } |
| |
| u32 |
| tls_listener_ctx_index (tls_ctx_t * ctx) |
| { |
| return (ctx - tls_main.listener_ctx_pool); |
| } |
| |
| u32 |
| tls_ctx_half_open_alloc (void) |
| { |
| tls_main_t *tm = &tls_main; |
| u8 will_expand = 0; |
| tls_ctx_t *ctx; |
| u32 ctx_index; |
| |
| pool_get_aligned_will_expand (tm->half_open_ctx_pool, will_expand, 0); |
| if (PREDICT_FALSE (will_expand && vlib_num_workers ())) |
| { |
| clib_rwlock_writer_lock (&tm->half_open_rwlock); |
| pool_get (tm->half_open_ctx_pool, ctx); |
| ctx_index = ctx - tm->half_open_ctx_pool; |
| clib_rwlock_writer_unlock (&tm->half_open_rwlock); |
| } |
| else |
| { |
| /* reader lock assumption: only main thread will call pool_get */ |
| clib_rwlock_reader_lock (&tm->half_open_rwlock); |
| pool_get (tm->half_open_ctx_pool, ctx); |
| ctx_index = ctx - tm->half_open_ctx_pool; |
| clib_rwlock_reader_unlock (&tm->half_open_rwlock); |
| } |
| clib_memset (ctx, 0, sizeof (*ctx)); |
| return ctx_index; |
| } |
| |
| void |
| tls_ctx_half_open_free (u32 ho_index) |
| { |
| tls_main_t *tm = &tls_main; |
| clib_rwlock_writer_lock (&tm->half_open_rwlock); |
| pool_put_index (tls_main.half_open_ctx_pool, ho_index); |
| clib_rwlock_writer_unlock (&tm->half_open_rwlock); |
| } |
| |
| tls_ctx_t * |
| tls_ctx_half_open_get (u32 ctx_index) |
| { |
| tls_main_t *tm = &tls_main; |
| clib_rwlock_reader_lock (&tm->half_open_rwlock); |
| return pool_elt_at_index (tm->half_open_ctx_pool, ctx_index); |
| } |
| |
| void |
| tls_ctx_half_open_reader_unlock () |
| { |
| clib_rwlock_reader_unlock (&tls_main.half_open_rwlock); |
| } |
| |
| u32 |
| tls_ctx_half_open_index (tls_ctx_t * ctx) |
| { |
| return (ctx - tls_main.half_open_ctx_pool); |
| } |
| |
| void |
| tls_notify_app_enqueue (tls_ctx_t * ctx, session_t * app_session) |
| { |
| app_worker_t *app_wrk; |
| app_wrk = app_worker_get_if_valid (app_session->app_wrk_index); |
| if (PREDICT_TRUE (app_wrk != 0)) |
| tls_add_app_q_evt (app_wrk, app_session); |
| } |
| |
| int |
| tls_notify_app_accept (tls_ctx_t * ctx) |
| { |
| session_t *app_listener, *app_session; |
| app_worker_t *app_wrk; |
| tls_ctx_t *lctx; |
| int rv; |
| |
| lctx = tls_listener_ctx_get (ctx->listener_ctx_index); |
| app_listener = listen_session_get_from_handle (lctx->app_session_handle); |
| |
| 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 = app_listener->session_type; |
| app_session->listener_handle = listen_session_get_handle (app_listener); |
| app_session->session_state = SESSION_STATE_ACCEPTING; |
| |
| if ((rv = app_worker_init_accepted (app_session))) |
| { |
| TLS_DBG (1, "failed to allocate fifos"); |
| session_free (app_session); |
| return rv; |
| } |
| ctx->app_session_handle = session_handle (app_session); |
| session_lookup_add_connection (&ctx->connection, |
| session_handle (app_session)); |
| ctx->parent_app_wrk_index = app_session->app_wrk_index; |
| app_wrk = app_worker_get (app_session->app_wrk_index); |
| return app_worker_accept_notify (app_wrk, app_session); |
| } |
| |
| int |
| tls_notify_app_connected (tls_ctx_t * ctx, u8 is_failed) |
| { |
| session_t *app_session; |
| app_worker_t *app_wrk; |
| |
| app_wrk = app_worker_get_if_valid (ctx->parent_app_wrk_index); |
| if (!app_wrk) |
| { |
| tls_disconnect_transport (ctx); |
| return -1; |
| } |
| |
| if (is_failed) |
| goto failed; |
| |
| 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)) |
| goto failed; |
| |
| app_session->session_state = SESSION_STATE_CONNECTING; |
| if (app_worker_connect_notify (app_wrk, app_session, |
| ctx->parent_app_api_context)) |
| { |
| TLS_DBG (1, "failed to notify app"); |
| 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; |
| session_lookup_add_connection (&ctx->connection, |
| session_handle (app_session)); |
| |
| 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); |
| } |
| |
| static inline void |
| tls_ctx_parse_handle (u32 ctx_handle, u32 * ctx_index, u32 * engine_type) |
| { |
| *ctx_index = ctx_handle & TLS_IDX_MASK; |
| *engine_type = ctx_handle >> TLS_ENGINE_TYPE_SHIFT; |
| } |
| |
| static inline tls_engine_type_t |
| tls_get_engine_type (tls_engine_type_t preferred) |
| { |
| if (!tls_vfts[preferred].ctx_alloc) |
| return tls_get_available_engine (); |
| return preferred; |
| } |
| |
| static inline u32 |
| tls_ctx_alloc (tls_engine_type_t engine_type) |
| { |
| u32 ctx_index; |
| ctx_index = tls_vfts[engine_type].ctx_alloc (); |
| return (((u32) engine_type << TLS_ENGINE_TYPE_SHIFT) | ctx_index); |
| } |
| |
| static inline tls_ctx_t * |
| tls_ctx_get (u32 ctx_handle) |
| { |
| u32 ctx_index, engine_type; |
| tls_ctx_parse_handle (ctx_handle, &ctx_index, &engine_type); |
| return tls_vfts[engine_type].ctx_get (ctx_index); |
| } |
| |
| static inline tls_ctx_t * |
| tls_ctx_get_w_thread (u32 ctx_handle, u8 thread_index) |
| { |
| u32 ctx_index, engine_type; |
| tls_ctx_parse_handle (ctx_handle, &ctx_index, &engine_type); |
| return tls_vfts[engine_type].ctx_get_w_thread (ctx_index, thread_index); |
| } |
| |
| static inline int |
| tls_ctx_init_server (tls_ctx_t * ctx) |
| { |
| return tls_vfts[ctx->tls_ctx_engine].ctx_init_server (ctx); |
| } |
| |
| static inline int |
| tls_ctx_init_client (tls_ctx_t * ctx) |
| { |
| return tls_vfts[ctx->tls_ctx_engine].ctx_init_client (ctx); |
| } |
| |
| static inline int |
| tls_ctx_write (tls_ctx_t * ctx, session_t * app_session) |
| { |
| return tls_vfts[ctx->tls_ctx_engine].ctx_write (ctx, app_session); |
| } |
| |
| static inline int |
| tls_ctx_read (tls_ctx_t * ctx, session_t * tls_session) |
| { |
| return tls_vfts[ctx->tls_ctx_engine].ctx_read (ctx, tls_session); |
| } |
| |
| static inline int |
| tls_ctx_transport_close (tls_ctx_t * ctx) |
| { |
| return tls_vfts[ctx->tls_ctx_engine].ctx_transport_close (ctx); |
| } |
| |
| static inline int |
| tls_ctx_app_close (tls_ctx_t * ctx) |
| { |
| return tls_vfts[ctx->tls_ctx_engine].ctx_app_close (ctx); |
| } |
| |
| void |
| tls_ctx_free (tls_ctx_t * ctx) |
| { |
| tls_vfts[ctx->tls_ctx_engine].ctx_free (ctx); |
| } |
| |
| u8 |
| tls_ctx_handshake_is_over (tls_ctx_t * ctx) |
| { |
| return tls_vfts[ctx->tls_ctx_engine].ctx_handshake_is_over (ctx); |
| } |
| |
| void |
| tls_session_reset_callback (session_t * s) |
| { |
| tls_ctx_t *ctx; |
| |
| ctx = tls_ctx_get (s->opaque); |
| session_transport_reset_notify (&ctx->connection); |
| session_transport_closed_notify (&ctx->connection); |
| tls_disconnect_transport (ctx); |
| } |
| |
| int |
| tls_add_segment_callback (u32 client_index, u64 segment_handle) |
| { |
| /* No-op for builtin */ |
| return 0; |
| } |
| |
| int |
| tls_del_segment_callback (u32 client_index, u64 segment_handle) |
| { |
| return 0; |
| } |
| |
| void |
| tls_session_disconnect_callback (session_t * tls_session) |
| { |
| tls_ctx_t *ctx; |
| |
| TLS_DBG (1, "TCP disconnecting handle %x session %u", tls_session->opaque, |
| tls_session->session_index); |
| |
| ctx = tls_ctx_get (tls_session->opaque); |
| ctx->is_passive_close = 1; |
| tls_ctx_transport_close (ctx); |
| } |
| |
| int |
| tls_session_accept_callback (session_t * tls_session) |
| { |
| session_t *tls_listener, *app_session; |
| tls_ctx_t *lctx, *ctx; |
| u32 ctx_handle; |
| |
| tls_listener = |
| listen_session_get_from_handle (tls_session->listener_handle); |
| lctx = tls_listener_ctx_get (tls_listener->opaque); |
| |
| ctx_handle = tls_ctx_alloc (lctx->tls_ctx_engine); |
| ctx = tls_ctx_get (ctx_handle); |
| memcpy (ctx, lctx, sizeof (*lctx)); |
| ctx->c_thread_index = vlib_get_thread_index (); |
| ctx->tls_ctx_handle = ctx_handle; |
| tls_session->session_state = SESSION_STATE_READY; |
| tls_session->opaque = ctx_handle; |
| ctx->tls_session_handle = session_handle (tls_session); |
| ctx->listener_ctx_index = tls_listener->opaque; |
| ctx->c_flags |= TRANSPORT_CONNECTION_F_NO_LOOKUP; |
| ctx->ckpair_index = lctx->ckpair_index; |
| |
| /* Preallocate app session. Avoids allocating a session post handshake |
| * on tls_session rx and potentially invalidating the session pool */ |
| app_session = session_alloc (ctx->c_thread_index); |
| app_session->session_state = SESSION_STATE_CLOSED; |
| ctx->c_s_index = app_session->session_index; |
| |
| TLS_DBG (1, "Accept on listener %u new connection [%u]%x", |
| tls_listener->opaque, vlib_get_thread_index (), ctx_handle); |
| |
| return tls_ctx_init_server (ctx); |
| } |
| |
| int |
| tls_app_rx_callback (session_t * tls_session) |
| { |
| tls_ctx_t *ctx; |
| |
| 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) |
| { |
| session_t *app_session; |
| tls_ctx_t *ho_ctx, *ctx; |
| u32 ctx_handle; |
| |
| ho_ctx = tls_ctx_half_open_get (ho_ctx_index); |
| |
| if (is_fail) |
| { |
| app_worker_t *app_wrk; |
| u32 api_context; |
| int rv = 0; |
| |
| 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); |
| } |
| tls_ctx_half_open_reader_unlock (); |
| tls_ctx_half_open_free (ho_ctx_index); |
| return rv; |
| } |
| |
| ctx_handle = tls_ctx_alloc (ho_ctx->tls_ctx_engine); |
| ctx = tls_ctx_get (ctx_handle); |
| clib_memcpy_fast (ctx, ho_ctx, sizeof (*ctx)); |
| tls_ctx_half_open_reader_unlock (); |
| tls_ctx_half_open_free (ho_ctx_index); |
| |
| ctx->c_thread_index = vlib_get_thread_index (); |
| ctx->tls_ctx_handle = ctx_handle; |
| 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 (), |
| (ctx) ? ctx_handle : ~0); |
| |
| ctx->tls_session_handle = session_handle (tls_session); |
| tls_session->opaque = ctx_handle; |
| tls_session->session_state = SESSION_STATE_READY; |
| |
| /* Preallocate app session. Avoids allocating a session post handshake |
| * on tls_session rx and potentially invalidating the session pool */ |
| app_session = session_alloc (ctx->c_thread_index); |
| app_session->session_state = SESSION_STATE_CLOSED; |
| ctx->c_s_index = app_session->session_index; |
| |
| return tls_ctx_init_client (ctx); |
| } |
| |
| static void |
| tls_app_session_cleanup (session_t * s, session_cleanup_ntf_t ntf) |
| { |
| tls_ctx_t *ctx; |
| |
| if (ntf == SESSION_CLEANUP_TRANSPORT) |
| return; |
| |
| ctx = tls_ctx_get (s->opaque); |
| if (!ctx->no_app_session) |
| session_transport_delete_notify (&ctx->connection); |
| tls_ctx_free (ctx); |
| } |
| |
| /* *INDENT-OFF* */ |
| static session_cb_vft_t tls_app_cb_vft = { |
| .session_accept_callback = tls_session_accept_callback, |
| .session_disconnect_callback = tls_session_disconnect_callback, |
| .session_connected_callback = tls_session_connected_callback, |
| .session_reset_callback = tls_session_reset_callback, |
| .add_segment_callback = tls_add_segment_callback, |
| .del_segment_callback = tls_del_segment_callback, |
| .builtin_app_rx_callback = tls_app_rx_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; |
| tls_engine_type_t engine_type; |
| tls_main_t *tm = &tls_main; |
| app_worker_t *app_wrk; |
| application_t *app; |
| tls_ctx_t *ctx; |
| u32 ctx_index; |
| int rv; |
| |
| sep = (session_endpoint_cfg_t *) tep; |
| 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); |
| if (engine_type == TLS_ENGINE_NONE) |
| { |
| clib_warning ("No tls engine_type available"); |
| return -1; |
| } |
| |
| ctx_index = tls_ctx_half_open_alloc (); |
| ctx = tls_ctx_half_open_get (ctx_index); |
| 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->srv_hostname = format (0, "%v", sep->hostname); |
| vec_terminate_c_string (ctx->srv_hostname); |
| } |
| tls_ctx_half_open_reader_unlock (); |
| |
| 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_TCP; |
| cargs->app_index = tm->app_index; |
| cargs->api_context = ctx_index; |
| cargs->sep_ext.ns_index = app->ns_index; |
| if ((rv = vnet_connect (cargs))) |
| return rv; |
| |
| TLS_DBG (1, "New connect request %u engine %d", ctx_index, engine_type); |
| return 0; |
| } |
| |
| void |
| tls_disconnect (u32 ctx_handle, u32 thread_index) |
| { |
| tls_ctx_t *ctx; |
| |
| TLS_DBG (1, "Disconnecting %x", ctx_handle); |
| |
| ctx = tls_ctx_get (ctx_handle); |
| tls_ctx_app_close (ctx); |
| } |
| |
| u32 |
| tls_start_listen (u32 app_listener_index, transport_endpoint_t * tep) |
| { |
| vnet_listen_args_t _bargs, *args = &_bargs; |
| app_worker_t *app_wrk; |
| tls_main_t *tm = &tls_main; |
| session_handle_t tls_al_handle; |
| session_endpoint_cfg_t *sep; |
| session_t *tls_listener; |
| session_t *app_listener; |
| tls_engine_type_t engine_type; |
| application_t *app; |
| app_listener_t *al; |
| tls_ctx_t *lctx; |
| u32 lctx_index; |
| |
| sep = (session_endpoint_cfg_t *) tep; |
| 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); |
| if (engine_type == TLS_ENGINE_NONE) |
| { |
| clib_warning ("No tls engine_type available"); |
| return -1; |
| } |
| |
| sep->transport_proto = TRANSPORT_PROTO_TCP; |
| clib_memset (args, 0, sizeof (*args)); |
| args->app_index = tm->app_index; |
| args->sep_ext = *sep; |
| args->sep_ext.ns_index = app->ns_index; |
| if (vnet_listen (args)) |
| return -1; |
| |
| lctx_index = tls_listener_ctx_alloc (); |
| tls_al_handle = args->handle; |
| al = app_listener_get_w_handle (tls_al_handle); |
| tls_listener = app_listener_get_session (al); |
| tls_listener->opaque = lctx_index; |
| |
| app_listener = listen_session_get (app_listener_index); |
| |
| lctx = tls_listener_ctx_get (lctx_index); |
| lctx->parent_app_wrk_index = sep->app_wrk_index; |
| lctx->tls_session_handle = tls_al_handle; |
| 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; |
| |
| if (tls_vfts[engine_type].ctx_start_listen (lctx)) |
| { |
| vnet_unlisten_args_t a = { |
| .handle = lctx->tls_session_handle, |
| .app_index = tls_main.app_index, |
| .wrk_map_index = 0 |
| }; |
| if ((vnet_unlisten (&a))) |
| clib_warning ("unlisten returned"); |
| tls_listener_ctx_free (lctx); |
| lctx_index = SESSION_INVALID_INDEX; |
| } |
| |
| TLS_DBG (1, "Started listening %d, engine type %d", lctx_index, |
| engine_type); |
| return lctx_index; |
| } |
| |
| u32 |
| tls_stop_listen (u32 lctx_index) |
| { |
| tls_engine_type_t engine_type; |
| tls_ctx_t *lctx; |
| int rv; |
| |
| lctx = tls_listener_ctx_get (lctx_index); |
| vnet_unlisten_args_t a = { |
| .handle = lctx->tls_session_handle, |
| .app_index = tls_main.app_index, |
| .wrk_map_index = 0 /* default wrk */ |
| }; |
| if ((rv = vnet_unlisten (&a))) |
| clib_warning ("unlisten returned %d", rv); |
| |
| engine_type = lctx->tls_ctx_engine; |
| tls_vfts[engine_type].ctx_stop_listen (lctx); |
| |
| tls_listener_ctx_free (lctx); |
| return 0; |
| } |
| |
| transport_connection_t * |
| tls_connection_get (u32 ctx_index, u32 thread_index) |
| { |
| tls_ctx_t *ctx; |
| ctx = tls_ctx_get_w_thread (ctx_index, thread_index); |
| return &ctx->connection; |
| } |
| |
| transport_connection_t * |
| tls_listener_get (u32 listener_index) |
| { |
| tls_ctx_t *ctx; |
| ctx = tls_listener_ctx_get (listener_index); |
| return &ctx->connection; |
| } |
| |
| int |
| tls_custom_tx_callback (void *session, u32 max_burst_size) |
| { |
| session_t *app_session = (session_t *) session; |
| tls_ctx_t *ctx; |
| |
| if (PREDICT_FALSE (app_session->session_state |
| >= SESSION_STATE_TRANSPORT_CLOSED)) |
| return 0; |
| |
| ctx = tls_ctx_get (app_session->connection_index); |
| tls_ctx_write (ctx, app_session); |
| return 0; |
| } |
| |
| u8 * |
| format_tls_ctx (u8 * s, va_list * args) |
| { |
| u32 tcp_si, tcp_ti, ctx_index, ctx_engine, app_si, app_ti; |
| tls_ctx_t *ctx = va_arg (*args, tls_ctx_t *); |
| |
| 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); |
| |
| return s; |
| } |
| |
| u8 * |
| format_tls_connection (u8 * s, va_list * args) |
| { |
| u32 ctx_index = va_arg (*args, u32); |
| u32 thread_index = va_arg (*args, u32); |
| u32 verbose = va_arg (*args, u32); |
| tls_ctx_t *ctx; |
| |
| ctx = tls_ctx_get_w_thread (ctx_index, thread_index); |
| if (!ctx) |
| return s; |
| |
| s = format (s, "%-50U", format_tls_ctx, ctx); |
| if (verbose) |
| { |
| session_t *ts; |
| ts = session_get_from_handle (ctx->app_session_handle); |
| s = format (s, "state: %-7u", ts->session_state); |
| if (verbose > 1) |
| s = format (s, "\n"); |
| } |
| return s; |
| } |
| |
| u8 * |
| format_tls_listener (u8 * s, va_list * args) |
| { |
| u32 tc_index = va_arg (*args, u32); |
| u32 __clib_unused thread_index = va_arg (*args, u32); |
| u32 __clib_unused verbose = va_arg (*args, u32); |
| tls_ctx_t *ctx = tls_listener_ctx_get (tc_index); |
| session_t *tls_listener; |
| app_listener_t *al; |
| u32 app_si, app_ti; |
| |
| 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, |
| tls_listener->thread_index, tls_listener->session_index); |
| return s; |
| } |
| |
| u8 * |
| format_tls_half_open (u8 * s, va_list * args) |
| { |
| u32 tc_index = va_arg (*args, u32); |
| u32 __clib_unused thread_index = va_arg (*args, u32); |
| tls_ctx_t *ctx = tls_ctx_half_open_get (tc_index); |
| s = format (s, "[TLS] half-open app %u", ctx->parent_app_wrk_index); |
| tls_ctx_half_open_reader_unlock (); |
| return s; |
| } |
| |
| static void |
| tls_transport_endpoint_get (u32 ctx_handle, u32 thread_index, |
| transport_endpoint_t * tep, u8 is_lcl) |
| { |
| tls_ctx_t *ctx = tls_ctx_get_w_thread (ctx_handle, thread_index); |
| session_t *tcp_session; |
| |
| tcp_session = session_get_from_handle (ctx->tls_session_handle); |
| session_get_endpoint (tcp_session, tep, is_lcl); |
| } |
| |
| static void |
| tls_transport_listener_endpoint_get (u32 ctx_handle, |
| transport_endpoint_t * tep, u8 is_lcl) |
| { |
| session_t *tls_listener; |
| app_listener_t *al; |
| tls_ctx_t *ctx = tls_listener_ctx_get (ctx_handle); |
| |
| al = app_listener_get_w_handle (ctx->tls_session_handle); |
| tls_listener = app_listener_get_session (al); |
| session_get_endpoint (tls_listener, tep, is_lcl); |
| } |
| |
| /* *INDENT-OFF* */ |
| static const transport_proto_vft_t tls_proto = { |
| .connect = tls_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, |
| .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 = { |
| .tx_type = TRANSPORT_TX_INTERNAL, |
| .service_type = TRANSPORT_SERVICE_APP, |
| }, |
| }; |
| /* *INDENT-ON* */ |
| |
| void |
| tls_register_engine (const tls_engine_vft_t * vft, tls_engine_type_t type) |
| { |
| vec_validate (tls_vfts, type); |
| tls_vfts[type] = *vft; |
| } |
| |
| 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; |
| |
| 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); |
| vec_validate (tm->tx_bufs, num_threads - 1); |
| |
| transport_register_protocol (TRANSPORT_PROTO_TLS, &tls_proto, |
| FIB_PROTOCOL_IP4, ~0); |
| transport_register_protocol (TRANSPORT_PROTO_TLS, &tls_proto, |
| FIB_PROTOCOL_IP6, ~0); |
| vec_free (a->name); |
| return 0; |
| } |
| |
| VLIB_INIT_FUNCTION (tls_init); |
| |
| static clib_error_t * |
| tls_config_fn (vlib_main_t * vm, unformat_input_t * input) |
| { |
| tls_main_t *tm = &tls_main; |
| while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT) |
| { |
| if (unformat (input, "use-test-cert-in-ca")) |
| tm->use_test_cert_in_ca = 1; |
| else if (unformat (input, "ca-cert-path %s", &tm->ca_cert_path)) |
| ; |
| else if (unformat (input, "first-segment-size %U", unformat_memory_size, |
| &tm->first_seg_size)) |
| ; |
| else if (unformat (input, "fifo-size %U", unformat_memory_size, |
| &tm->fifo_size)) |
| ; |
| else |
| return clib_error_return (0, "unknown input `%U'", |
| format_unformat_error, input); |
| } |
| return 0; |
| } |
| |
| VLIB_EARLY_CONFIG_FUNCTION (tls_config_fn, "tls"); |
| |
| tls_main_t * |
| vnet_tls_get_main (void) |
| { |
| return &tls_main; |
| } |
| |
| /* |
| * fd.io coding-style-patch-verification: ON |
| * |
| * Local Variables: |
| * eval: (c-set-style "gnu") |
| * End: |
| */ |