X-Git-Url: https://gerrit.fd.io/r/gitweb?a=blobdiff_plain;f=src%2Fvnet%2Ftls%2Ftls.c;h=040db020f77585239ce611f24c43f0fc403d487e;hb=58d36f02b45c5af38b7df81fb7976129cad3e05b;hp=65900c8b2cf148b8ae2871459ef26aaca2bb8c90;hpb=46c1c11ba08512a5e37392de1ddb306b139a5bcf;p=vpp.git diff --git a/src/vnet/tls/tls.c b/src/vnet/tls/tls.c index 65900c8b2cf..040db020f77 100644 --- a/src/vnet/tls/tls.c +++ b/src/vnet/tls/tls.c @@ -20,8 +20,23 @@ static tls_main_t tls_main; static tls_engine_vft_t *tls_vfts; -#define DEFAULT_ENGINE 0 -void tls_disconnect (u32 ctx_index, u32 thread_index); +#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); + +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_evt (svm_fifo_t * f, u8 evt_type) @@ -169,7 +184,15 @@ tls_ctx_half_open_index (tls_ctx_t * ctx) return (ctx - tls_main.half_open_ctx_pool); } -static int +void +tls_notify_app_enqueue (tls_ctx_t * ctx, stream_session_t * app_session) +{ + application_t *app; + app = application_get_if_valid (app_session->app_index); + tls_add_app_q_evt (app, app_session); +} + +int tls_notify_app_accept (tls_ctx_t * ctx) { stream_session_t *app_listener, *app_session; @@ -185,7 +208,7 @@ tls_notify_app_accept (tls_ctx_t * ctx) app_session = session_alloc (vlib_get_thread_index ()); app_session->app_index = ctx->parent_app_index; - app_session->connection_index = ctx->tls_ctx_idx; + app_session->connection_index = ctx->tls_ctx_handle; app_session->session_type = app_listener->session_type; app_session->listener_index = app_listener->session_index; if ((rv = session_alloc_fifos (sm, app_session))) @@ -198,7 +221,7 @@ tls_notify_app_accept (tls_ctx_t * ctx) return app->cb_fns.session_accept_callback (app_session); } -static int +int tls_notify_app_connected (tls_ctx_t * ctx, u8 is_failed) { int (*cb_fn) (u32, u32, stream_session_t *, u8); @@ -215,7 +238,7 @@ tls_notify_app_connected (tls_ctx_t * ctx, u8 is_failed) sm = application_get_connect_segment_manager (app); app_session = session_alloc (vlib_get_thread_index ()); app_session->app_index = ctx->parent_app_index; - app_session->connection_index = ctx->tls_ctx_idx; + 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 (session_alloc_fifos (sm, app_session)) @@ -228,93 +251,91 @@ tls_notify_app_connected (tls_ctx_t * ctx, u8 is_failed) app_session, 0 /* not failed */ )) { TLS_DBG (1, "failed to notify app"); - tls_disconnect (ctx->tls_ctx_idx, vlib_get_thread_index ()); + tls_disconnect (ctx->tls_ctx_handle, vlib_get_thread_index ()); } return 0; failed: + tls_disconnect (ctx->tls_ctx_handle, vlib_get_thread_index ()); return cb_fn (ctx->parent_app_index, ctx->parent_app_api_context, 0, 1 /* failed */ ); } +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 (void) +tls_ctx_alloc (tls_engine_type_t engine_type) { - return tls_vfts[DEFAULT_ENGINE].ctx_alloc (); + u32 ctx_index; + ctx_index = tls_vfts[engine_type].ctx_alloc (); + return (((u32) engine_type << TLS_ENGINE_TYPE_SHIFT) | ctx_index); } static inline void tls_ctx_free (tls_ctx_t * ctx) { vec_free (ctx->srv_hostname); - tls_vfts[DEFAULT_ENGINE].ctx_free (ctx); + tls_vfts[ctx->tls_ctx_engine].ctx_free (ctx); } static inline tls_ctx_t * -tls_ctx_get (u32 ctx_index) +tls_ctx_get (u32 ctx_handle) { - return tls_vfts[DEFAULT_ENGINE].ctx_get (ctx_index); + 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_index, u8 thread_index) +tls_ctx_get_w_thread (u32 ctx_handle, u8 thread_index) { - return tls_vfts[DEFAULT_ENGINE].ctx_get_w_thread (ctx_index, 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[DEFAULT_ENGINE].ctx_init_server (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[DEFAULT_ENGINE].ctx_init_client (ctx); + return tls_vfts[ctx->tls_ctx_engine].ctx_init_client (ctx); } static inline int -tls_ctx_write (tls_ctx_t * ctx, u8 * buf, u32 len) +tls_ctx_write (tls_ctx_t * ctx, stream_session_t * app_session) { - return tls_vfts[DEFAULT_ENGINE].ctx_write (ctx, buf, len); + return tls_vfts[ctx->tls_ctx_engine].ctx_write (ctx, app_session); } static inline int -tls_ctx_read (tls_ctx_t * ctx, u8 * buf, u32 len) +tls_ctx_read (tls_ctx_t * ctx, stream_session_t * tls_session) { - return tls_vfts[DEFAULT_ENGINE].ctx_read (ctx, buf, len); + return tls_vfts[ctx->tls_ctx_engine].ctx_read (ctx, tls_session); } static inline u8 tls_ctx_handshake_is_over (tls_ctx_t * ctx) { - return tls_vfts[DEFAULT_ENGINE].ctx_handshake_is_over (ctx); -} - -static inline int -tls_handshake_rx (tls_ctx_t * ctx) -{ - int rv; - rv = tls_vfts[DEFAULT_ENGINE].ctx_handshake_rx (ctx); - - switch (rv) - { - case CLIENT_HANDSHAKE_OK: - tls_notify_app_connected (ctx, /* is failed */ 0); - break; - case CLIENT_HANDSHAKE_FAIL: - tls_disconnect (ctx->tls_ctx_idx, vlib_get_thread_index ()); - tls_notify_app_connected (ctx, /* is failed */ 1); - break; - case SERVER_HANDSHAKE_OK: - tls_notify_app_accept (ctx); - break; - default: - return 0; - } - return 0; + return tls_vfts[ctx->tls_ctx_engine].ctx_handshake_is_over (ctx); } void @@ -360,23 +381,24 @@ tls_session_accept_callback (stream_session_t * tls_session) { stream_session_t *tls_listener; tls_ctx_t *lctx, *ctx; - u32 ctx_index; + u32 ctx_handle; tls_listener = listen_session_get (tls_session->session_type, tls_session->listener_index); lctx = tls_listener_ctx_get (tls_listener->opaque); - ctx_index = tls_ctx_alloc (); - ctx = tls_ctx_get (ctx_index); + + 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_idx = ctx_index; + ctx->tls_ctx_handle = ctx_handle; tls_session->session_state = SESSION_STATE_READY; - tls_session->opaque = ctx_index; + tls_session->opaque = ctx_handle; ctx->tls_session_handle = session_handle (tls_session); ctx->listener_ctx_index = tls_listener->opaque; - TLS_DBG (1, "Accept on listener %u new connection [%u]%u", - tls_listener->opaque, vlib_get_thread_index (), ctx_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); } @@ -384,95 +406,22 @@ tls_session_accept_callback (stream_session_t * tls_session) int tls_app_tx_callback (stream_session_t * app_session) { - stream_session_t *tls_session; tls_ctx_t *ctx; - static u8 *tmp_buf; - u32 enq_max, deq_max, deq_now; - int wrote; - - ctx = tls_ctx_get (app_session->connection_index); - if (!tls_ctx_handshake_is_over (ctx)) - tls_add_vpp_q_evt (app_session->server_tx_fifo, FIFO_EVENT_APP_TX); - - deq_max = svm_fifo_max_dequeue (app_session->server_tx_fifo); - if (!deq_max) + if (PREDICT_FALSE (app_session->session_state == SESSION_STATE_CLOSED)) return 0; - - tls_session = session_get_from_handle (ctx->tls_session_handle); - enq_max = svm_fifo_max_enqueue (tls_session->server_tx_fifo); - deq_now = clib_min (deq_max, TLS_CHUNK_SIZE); - - if (PREDICT_FALSE (enq_max == 0)) - { - tls_add_vpp_q_evt (app_session->server_tx_fifo, FIFO_EVENT_APP_TX); - return 0; - } - - vec_validate (tmp_buf, deq_now); - svm_fifo_peek (app_session->server_tx_fifo, 0, deq_now, tmp_buf); - wrote = tls_ctx_write (ctx, tmp_buf, deq_now); - if (wrote <= 0) - { - tls_add_vpp_q_evt (app_session->server_tx_fifo, FIFO_EVENT_APP_TX); - return 0; - } - - svm_fifo_dequeue_drop (app_session->server_tx_fifo, wrote); - vec_reset_length (tmp_buf); - - tls_add_vpp_q_evt (tls_session->server_tx_fifo, FIFO_EVENT_APP_TX); - - if (deq_now < deq_max) - tls_add_vpp_q_evt (app_session->server_tx_fifo, FIFO_EVENT_APP_TX); - + ctx = tls_ctx_get (app_session->connection_index); + tls_ctx_write (ctx, app_session); return 0; } int tls_app_rx_callback (stream_session_t * tls_session) { - stream_session_t *app_session; - u32 deq_max, enq_max, enq_now; - application_t *app; - static u8 *tmp_buf; tls_ctx_t *ctx; - int read, enq; ctx = tls_ctx_get (tls_session->opaque); - if (!tls_ctx_handshake_is_over (ctx)) - return tls_handshake_rx (ctx); - - deq_max = svm_fifo_max_dequeue (tls_session->server_rx_fifo); - if (!deq_max) - return 0; - - app_session = session_get_from_handle (ctx->app_session_handle); - enq_max = svm_fifo_max_enqueue (app_session->server_rx_fifo); - enq_now = clib_min (enq_max, TLS_CHUNK_SIZE); - - if (PREDICT_FALSE (enq_now == 0)) - { - tls_add_vpp_q_evt (tls_session->server_rx_fifo, FIFO_EVENT_BUILTIN_RX); - return 0; - } - - vec_validate (tmp_buf, enq_now); - read = tls_ctx_read (ctx, tmp_buf, enq_now); - if (read <= 0) - { - tls_add_vpp_q_evt (tls_session->server_rx_fifo, FIFO_EVENT_BUILTIN_RX); - return 0; - } - - enq = svm_fifo_enqueue_nowait (app_session->server_rx_fifo, read, tmp_buf); - ASSERT (enq == read); - vec_reset_length (tmp_buf); - - if (svm_fifo_max_dequeue (tls_session->server_rx_fifo)) - tls_add_vpp_q_evt (tls_session->server_rx_fifo, FIFO_EVENT_BUILTIN_RX); - - app = application_get_if_valid (app_session->app_index); - return tls_add_app_q_evt (app, app_session); + tls_ctx_read (ctx, tls_session); + return 0; } int @@ -482,7 +431,7 @@ tls_session_connected_callback (u32 tls_app_index, u32 ho_ctx_index, int (*cb_fn) (u32, u32, stream_session_t *, u8); application_t *app; tls_ctx_t *ho_ctx, *ctx; - u32 ctx_index; + u32 ctx_handle; ho_ctx = tls_ctx_half_open_get (ho_ctx_index); app = application_get (ho_ctx->parent_app_index); @@ -496,21 +445,21 @@ tls_session_connected_callback (u32 tls_app_index, u32 ho_ctx_index, 1 /* failed */ ); } - ctx_index = tls_ctx_alloc (); - ctx = tls_ctx_get (ctx_index); + ctx_handle = tls_ctx_alloc (ho_ctx->tls_ctx_engine); + ctx = tls_ctx_get (ctx_handle); clib_memcpy (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_idx = ctx_index; + ctx->tls_ctx_handle = ctx_handle; - TLS_DBG (1, "TCP connect for %u returned %u. New connection [%u]%u", + TLS_DBG (1, "TCP connect for %u returned %u. New connection [%u]%x", ho_ctx_index, is_fail, vlib_get_thread_index (), - (ctx) ? ctx_index : ~0); + (ctx) ? ctx_handle : ~0); ctx->tls_session_handle = session_handle (tls_session); - tls_session->opaque = ctx_index; + tls_session->opaque = ctx_handle; tls_session->session_state = SESSION_STATE_READY; return tls_ctx_init_client (ctx); @@ -533,6 +482,7 @@ int tls_connect (transport_endpoint_t * tep) { session_endpoint_extended_t *sep; + tls_engine_type_t engine_type; session_endpoint_t tls_sep; tls_main_t *tm = &tls_main; application_t *app; @@ -541,6 +491,13 @@ tls_connect (transport_endpoint_t * tep) int rv; sep = (session_endpoint_extended_t *) tep; + app = application_get (sep->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); @@ -554,27 +511,27 @@ tls_connect (transport_endpoint_t * tep) } tls_ctx_half_open_reader_unlock (); - app = application_get (sep->app_index); application_alloc_connects_segment_manager (app); + ctx->tls_ctx_engine = engine_type; clib_memcpy (&tls_sep, sep, sizeof (tls_sep)); tls_sep.transport_proto = TRANSPORT_PROTO_TCP; if ((rv = application_connect (tm->app_index, ctx_index, &tls_sep))) return rv; - TLS_DBG (1, "New connect request %u", ctx_index); + TLS_DBG (1, "New connect request %u engine %d", ctx_index, engine_type); return 0; } void -tls_disconnect (u32 ctx_index, u32 thread_index) +tls_disconnect (u32 ctx_handle, u32 thread_index) { stream_session_t *tls_session, *app_session; tls_ctx_t *ctx; - TLS_DBG (1, "Disconnecting %u", ctx_index); + TLS_DBG (1, "Disconnecting %x", ctx_handle); - ctx = tls_ctx_get (ctx_index); + ctx = tls_ctx_get (ctx_handle); tls_session = session_get_from_handle (ctx->tls_session_handle); stream_session_disconnect (tls_session); @@ -593,7 +550,7 @@ u32 tls_start_listen (u32 app_listener_index, transport_endpoint_t * tep) { tls_main_t *tm = &tls_main; - application_t *tls_app; + application_t *tls_app, *app; session_handle_t tls_handle; session_endpoint_extended_t *sep; stream_session_t *tls_listener; @@ -601,12 +558,18 @@ tls_start_listen (u32 app_listener_index, transport_endpoint_t * tep) u32 lctx_index; session_type_t st; stream_session_t *app_listener; + tls_engine_type_t engine_type; sep = (session_endpoint_extended_t *) tep; + app = application_get (sep->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; + } + lctx_index = tls_listener_ctx_alloc (); - lctx = tls_listener_ctx_get (lctx_index); - st = session_type_from_proto_and_ip (sep->transport_proto, sep->is_ip4); - app_listener = listen_session_get (st, app_listener_index); tls_app = application_get (tm->app_index); sep->transport_proto = TRANSPORT_PROTO_TCP; @@ -616,10 +579,19 @@ tls_start_listen (u32 app_listener_index, transport_endpoint_t * tep) tls_listener = listen_session_get_from_handle (tls_handle); tls_listener->opaque = lctx_index; + + st = session_type_from_proto_and_ip (TRANSPORT_PROTO_TLS, sep->is_ip4); + app_listener = listen_session_get (st, app_listener_index); + + lctx = tls_listener_ctx_get (lctx_index); lctx->parent_app_index = sep->app_index; lctx->tls_session_handle = tls_handle; lctx->app_session_handle = listen_session_get_handle (app_listener); lctx->tcp_is_ip4 = sep->is_ip4; + lctx->tls_ctx_engine = engine_type; + + TLS_DBG (1, "Started listening %d, engine type %d", lctx_index, + engine_type); return lctx_index; } @@ -739,11 +711,15 @@ tls_register_engine (const tls_engine_vft_t * vft, tls_engine_type_t type) clib_error_t * tls_init (vlib_main_t * vm) { + vlib_thread_main_t *vtm = vlib_get_thread_main (); vnet_app_attach_args_t _a, *a = &_a; u64 options[APP_OPTIONS_N_OPTIONS]; u32 segment_size = 512 << 20; tls_main_t *tm = &tls_main; u32 fifo_size = 64 << 10; + u32 num_threads; + + num_threads = 1 /* main thread */ + vtm->n_threads; memset (a, 0, sizeof (*a)); memset (options, 0, sizeof (options)); @@ -769,6 +745,9 @@ tls_init (vlib_main_t * vm) 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,