X-Git-Url: https://gerrit.fd.io/r/gitweb?a=blobdiff_plain;f=src%2Fvnet%2Fsession%2Fsession_api.c;h=2e215f760510bb6a2cb60f20748d151b31f0a804;hb=a5a9efd4d;hp=67c42faf692b278fd8cf8bf7fb61fbd8ed82207f;hpb=7fb0fe1f6972a7a35146fa9115b866ba29a6fbb7;p=vpp.git diff --git a/src/vnet/session/session_api.c b/src/vnet/session/session_api.c old mode 100755 new mode 100644 index 67c42faf692..2e215f76051 --- a/src/vnet/session/session_api.c +++ b/src/vnet/session/session_api.c @@ -1,5 +1,5 @@ /* - * Copyright (c) 2015-2016 Cisco and/or its affiliates. + * Copyright (c) 2015-2019 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: @@ -17,8 +17,12 @@ #include #include #include +#include #include #include +#include + +#include #include @@ -39,824 +43,751 @@ #include #define foreach_session_api_msg \ -_(MAP_ANOTHER_SEGMENT_REPLY, map_another_segment_reply) \ -_(APPLICATION_ATTACH, application_attach) \ +_(APP_ATTACH, app_attach) \ _(APPLICATION_DETACH, application_detach) \ -_(BIND_URI, bind_uri) \ -_(UNBIND_URI, unbind_uri) \ -_(CONNECT_URI, connect_uri) \ -_(DISCONNECT_SESSION, disconnect_session) \ -_(DISCONNECT_SESSION_REPLY, disconnect_session_reply) \ -_(ACCEPT_SESSION_REPLY, accept_session_reply) \ -_(RESET_SESSION_REPLY, reset_session_reply) \ -_(BIND_SOCK, bind_sock) \ -_(UNBIND_SOCK, unbind_sock) \ -_(CONNECT_SOCK, connect_sock) \ _(SESSION_ENABLE_DISABLE, session_enable_disable) \ _(APP_NAMESPACE_ADD_DEL, app_namespace_add_del) \ _(SESSION_RULE_ADD_DEL, session_rule_add_del) \ _(SESSION_RULES_DUMP, session_rules_dump) \ -_(APPLICATION_TLS_CERT_ADD, application_tls_cert_add) \ -_(APPLICATION_TLS_KEY_ADD, application_tls_key_add) \ +_(APP_ADD_CERT_KEY_PAIR, app_add_cert_key_pair) \ +_(APP_DEL_CERT_KEY_PAIR, app_del_cert_key_pair) \ +_(APP_WORKER_ADD_DEL, app_worker_add_del) \ -static int -session_send_memfd_fd (vl_api_registration_t * reg, const ssvm_private_t * sp) +static transport_proto_t +api_session_transport_proto_decode (const vl_api_transport_proto_t * api_tp) { - clib_error_t *error; - if (vl_api_registration_file_index (reg) == VL_API_INVALID_FI) - { - clib_warning ("can't send memfd fd"); - return -1; + switch (*api_tp) + { + case TRANSPORT_PROTO_API_TCP: + return TRANSPORT_PROTO_TCP; + case TRANSPORT_PROTO_API_UDP: + return TRANSPORT_PROTO_UDP; + case TRANSPORT_PROTO_API_TLS: + return TRANSPORT_PROTO_TLS; + case TRANSPORT_PROTO_API_QUIC: + return TRANSPORT_PROTO_QUIC; + default: + return TRANSPORT_PROTO_NONE; } - error = vl_api_send_fd_msg (reg, sp->fd); - if (error) - { - clib_error_report (error); - return -1; - } - return 0; } -static int -send_add_segment_callback (u32 api_client_index, const ssvm_private_t * sp) +static vl_api_transport_proto_t +api_session_transport_proto_encode (const transport_proto_t tp) { - vl_api_map_another_segment_t *mp; - vl_api_registration_t *reg; - - reg = vl_mem_api_client_index_to_registration (api_client_index); - if (!reg) - { - clib_warning ("no registration: %u", api_client_index); - return -1; + switch (tp) + { + case TRANSPORT_PROTO_TCP: + return TRANSPORT_PROTO_API_TCP; + case TRANSPORT_PROTO_UDP: + return TRANSPORT_PROTO_API_UDP; + case TRANSPORT_PROTO_TLS: + return TRANSPORT_PROTO_API_TLS; + case TRANSPORT_PROTO_QUIC: + return TRANSPORT_PROTO_API_QUIC; + default: + return TRANSPORT_PROTO_API_NONE; } +} - if (ssvm_type (sp) == SSVM_SEGMENT_MEMFD - && vl_api_registration_file_index (reg) == VL_API_INVALID_FI) +static int +session_send_fds (vl_api_registration_t * reg, int fds[], int n_fds) +{ + clib_error_t *error; + if (vl_api_registration_file_index (reg) == VL_API_INVALID_FI) + return SESSION_E_BAPI_NO_FD; + error = vl_api_send_fd_msg (reg, fds, n_fds); + if (error) { - clib_warning ("can't send memfd fd"); - return -1; + clib_error_report (error); + return SESSION_E_BAPI_SEND_FD; } - - mp = vl_msg_api_alloc_as_if_client (sizeof (*mp)); - memset (mp, 0, sizeof (*mp)); - mp->_vl_msg_id = clib_host_to_net_u16 (VL_API_MAP_ANOTHER_SEGMENT); - mp->segment_size = sp->ssvm_size; - strncpy ((char *) mp->segment_name, (char *) sp->name, - sizeof (mp->segment_name) - 1); - - vl_msg_api_send_shmem (reg->vl_input_queue, (u8 *) & mp); - - if (ssvm_type (sp) == SSVM_SEGMENT_MEMFD) - return session_send_memfd_fd (reg, sp); - return 0; } static int -send_del_segment_callback (u32 api_client_index, const ssvm_private_t * fs) +mq_try_lock_and_alloc_msg (svm_msg_q_t * app_mq, svm_msg_q_msg_t * msg) { - vl_api_unmap_segment_t *mp; - vl_api_registration_t *reg; - - reg = vl_mem_api_client_index_to_registration (api_client_index); - if (!reg) - { - clib_warning ("no registration: %u", api_client_index); - return -1; - } - - if (ssvm_type (fs) == SSVM_SEGMENT_MEMFD - && vl_api_registration_file_index (reg) == VL_API_INVALID_FI) - { - clib_warning ("can't send memfd fd"); - return -1; - } - - mp = vl_msg_api_alloc_as_if_client (sizeof (*mp)); - memset (mp, 0, sizeof (*mp)); - mp->_vl_msg_id = clib_host_to_net_u16 (VL_API_UNMAP_SEGMENT); - strncpy ((char *) mp->segment_name, (char *) fs->name, - sizeof (mp->segment_name) - 1); - - vl_msg_api_send_shmem (reg->vl_input_queue, (u8 *) & mp); - - if (ssvm_type (fs) == SSVM_SEGMENT_MEMFD) - return session_send_memfd_fd (reg, fs); - - return 0; + int rv; + u8 try = 0; + while (try < 100) + { + rv = svm_msg_q_lock_and_alloc_msg_w_ring (app_mq, + SESSION_MQ_CTRL_EVT_RING, + SVM_Q_NOWAIT, msg); + if (!rv) + return 0; + try++; + usleep (1); + } + clib_warning ("failed to alloc msg"); + return -1; } static int -send_session_accept_callback (stream_session_t * s) +mq_send_session_accepted_cb (session_t * s) { - application_t *server = application_get (s->app_index); - transport_proto_vft_t *tp_vft; - vl_api_accept_session_t *mp; - vl_api_registration_t *reg; - transport_connection_t *tc; - stream_session_t *listener; - svm_queue_t *vpp_queue; + app_worker_t *app_wrk = app_worker_get (s->app_wrk_index); + svm_msg_q_msg_t _msg, *msg = &_msg; + svm_msg_q_t *app_mq; + fifo_segment_t *eq_seg; + session_t *listener; + session_accepted_msg_t *mp; + session_event_t *evt; + application_t *app; - reg = vl_mem_api_client_index_to_registration (server->api_client_index); - if (!reg) - { - clib_warning ("no registration: %u", server->api_client_index); - return -1; - } + app = application_get (app_wrk->app_index); + app_mq = app_wrk->event_queue; + if (mq_try_lock_and_alloc_msg (app_mq, msg)) + return SESSION_E_MQ_MSG_ALLOC; - mp = vl_mem_api_alloc_as_if_client_w_reg (reg, sizeof (*mp)); - memset (mp, 0, sizeof (*mp)); + evt = svm_msg_q_msg_data (app_mq, msg); + clib_memset (evt, 0, sizeof (*evt)); + evt->event_type = SESSION_CTRL_EVT_ACCEPTED; + mp = (session_accepted_msg_t *) evt->data; + clib_memset (mp, 0, sizeof (*mp)); + mp->context = app->app_index; + mp->server_rx_fifo = fifo_segment_fifo_offset (s->rx_fifo); + mp->server_tx_fifo = fifo_segment_fifo_offset (s->tx_fifo); + mp->segment_handle = session_segment_handle (s); + mp->flags = s->flags; - mp->_vl_msg_id = clib_host_to_net_u16 (VL_API_ACCEPT_SESSION); - mp->context = server->index; - mp->server_rx_fifo = pointer_to_uword (s->server_rx_fifo); - mp->server_tx_fifo = pointer_to_uword (s->server_tx_fifo); + eq_seg = session_main_get_evt_q_segment (); if (session_has_transport (s)) { - listener = listen_session_get (s->listener_index); - mp->listener_handle = listen_session_get_handle (listener); - if (application_is_proxy (server)) + listener = listen_session_get_from_handle (s->listener_handle); + mp->listener_handle = app_listen_session_handle (listener); + if (application_is_proxy (app)) { listener = - application_first_listener (server, session_get_fib_proto (s), - session_get_transport_proto (s)); + app_worker_first_listener (app_wrk, session_get_fib_proto (s), + session_get_transport_proto (s)); if (listener) mp->listener_handle = listen_session_get_handle (listener); } - vpp_queue = session_manager_get_vpp_event_queue (s->thread_index); - mp->vpp_event_queue_address = pointer_to_uword (vpp_queue); + mp->vpp_event_queue_address = + fifo_segment_msg_q_offset (eq_seg, s->thread_index); + mp->mq_index = s->thread_index; mp->handle = session_handle (s); - tp_vft = transport_protocol_get_vft (session_get_transport_proto (s)); - tc = tp_vft->get_connection (s->connection_index, s->thread_index); - mp->port = tc->rmt_port; - mp->is_ip4 = tc->is_ip4; - clib_memcpy (&mp->ip, &tc->rmt_ip, sizeof (tc->rmt_ip)); + + session_get_endpoint (s, &mp->rmt, 0 /* is_lcl */ ); } else { - local_session_t *ls = (local_session_t *) s; - local_session_t *ll; - if (application_local_session_listener_has_transport (ls)) - { - listener = listen_session_get (ls->listener_index); - mp->listener_handle = listen_session_get_handle (listener); - mp->is_ip4 = session_type_is_ip4 (listener->session_type); - } - else - { - ll = application_get_local_listen_session (server, - ls->listener_index); - if (ll->transport_listener_index != ~0) - { - listener = listen_session_get (ll->transport_listener_index); - mp->listener_handle = listen_session_get_handle (listener); - } - else - { - mp->listener_handle = application_local_session_handle (ll); - } - mp->is_ip4 = session_type_is_ip4 (ll->listener_session_type); - } - mp->handle = application_local_session_handle (ls); - mp->port = ls->port; - mp->vpp_event_queue_address = ls->client_evt_q; - mp->server_event_queue_address = ls->server_evt_q; + ct_connection_t *ct; + + ct = (ct_connection_t *) session_get_transport (s); + listener = listen_session_get_from_handle (s->listener_handle); + mp->listener_handle = app_listen_session_handle (listener); + mp->rmt.is_ip4 = session_type_is_ip4 (listener->session_type); + mp->rmt.port = ct->c_rmt_port; + mp->handle = session_handle (s); + mp->vpp_event_queue_address = + fifo_segment_msg_q_offset (eq_seg, s->thread_index); + mp->mq_index = s->thread_index; } - vl_msg_api_send_shmem (reg->vl_input_queue, (u8 *) & mp); + svm_msg_q_add_and_unlock (app_mq, msg); return 0; } -void -send_local_session_disconnect_callback (u32 app_index, local_session_t * ls) +static inline void +mq_send_session_close_evt (app_worker_t * app_wrk, session_handle_t sh, + session_evt_type_t evt_type) { - application_t *app = application_get (app_index); - vl_api_disconnect_session_t *mp; - vl_api_registration_t *reg; + svm_msg_q_msg_t _msg, *msg = &_msg; + session_disconnected_msg_t *mp; + svm_msg_q_t *app_mq; + session_event_t *evt; - reg = vl_mem_api_client_index_to_registration (app->api_client_index); - if (!reg) + app_mq = app_wrk->event_queue; + if (mq_try_lock_and_alloc_msg (app_mq, msg)) + return; + evt = svm_msg_q_msg_data (app_mq, msg); + clib_memset (evt, 0, sizeof (*evt)); + evt->event_type = evt_type; + mp = (session_disconnected_msg_t *) evt->data; + mp->handle = sh; + mp->context = app_wrk->api_client_index; + svm_msg_q_add_and_unlock (app_mq, msg); +} + +static inline void +mq_notify_close_subscribers (u32 app_index, session_handle_t sh, + svm_fifo_t * f, session_evt_type_t evt_type) +{ + app_worker_t *app_wrk; + application_t *app; + int i; + + app = application_get (app_index); + if (!app) + return; + + for (i = 0; i < f->shr->n_subscribers; i++) { - clib_warning ("no registration: %u", app->api_client_index); - return; + if (!(app_wrk = application_get_worker (app, f->shr->subscribers[i]))) + continue; + mq_send_session_close_evt (app_wrk, sh, SESSION_CTRL_EVT_DISCONNECTED); } - - mp = vl_mem_api_alloc_as_if_client_w_reg (reg, sizeof (*mp)); - memset (mp, 0, sizeof (*mp)); - mp->_vl_msg_id = clib_host_to_net_u16 (VL_API_DISCONNECT_SESSION); - mp->handle = application_local_session_handle (ls); - mp->context = app->api_client_index; - vl_msg_api_send_shmem (reg->vl_input_queue, (u8 *) & mp); } static void -send_session_disconnect_callback (stream_session_t * s) +mq_send_session_disconnected_cb (session_t * s) { - application_t *app = application_get (s->app_index); - vl_api_disconnect_session_t *mp; - vl_api_registration_t *reg; + app_worker_t *app_wrk = app_worker_get (s->app_wrk_index); + session_handle_t sh = session_handle (s); - reg = vl_mem_api_client_index_to_registration (app->api_client_index); - if (!reg) - { - clib_warning ("no registration: %u", app->api_client_index); - return; - } + mq_send_session_close_evt (app_wrk, session_handle (s), + SESSION_CTRL_EVT_DISCONNECTED); - mp = vl_mem_api_alloc_as_if_client_w_reg (reg, sizeof (*mp)); - memset (mp, 0, sizeof (*mp)); - mp->_vl_msg_id = clib_host_to_net_u16 (VL_API_DISCONNECT_SESSION); - mp->handle = session_handle (s); - mp->context = app->api_client_index; - vl_msg_api_send_shmem (reg->vl_input_queue, (u8 *) & mp); + if (svm_fifo_n_subscribers (s->rx_fifo)) + mq_notify_close_subscribers (app_wrk->app_index, sh, s->rx_fifo, + SESSION_CTRL_EVT_DISCONNECTED); } static void -send_session_reset_callback (stream_session_t * s) +mq_send_session_reset_cb (session_t * s) { - application_t *app = application_get (s->app_index); - vl_api_registration_t *reg; - vl_api_reset_session_t *mp; + app_worker_t *app_wrk = app_worker_get (s->app_wrk_index); + session_handle_t sh = session_handle (s); - reg = vl_mem_api_client_index_to_registration (app->api_client_index); - if (!reg) - { - clib_warning ("no registration: %u", app->api_client_index); - return; - } + mq_send_session_close_evt (app_wrk, sh, SESSION_CTRL_EVT_RESET); - mp = vl_mem_api_alloc_as_if_client_w_reg (reg, sizeof (*mp)); - memset (mp, 0, sizeof (*mp)); - mp->_vl_msg_id = clib_host_to_net_u16 (VL_API_RESET_SESSION); - mp->handle = session_handle (s); - vl_msg_api_send_shmem (reg->vl_input_queue, (u8 *) & mp); + if (svm_fifo_n_subscribers (s->rx_fifo)) + mq_notify_close_subscribers (app_wrk->app_index, sh, s->rx_fifo, + SESSION_CTRL_EVT_RESET); } int -send_session_connected_callback (u32 app_index, u32 api_context, - stream_session_t * s, u8 is_fail) +mq_send_session_connected_cb (u32 app_wrk_index, u32 api_context, + session_t * s, session_error_t err) { - vl_api_connect_session_reply_t *mp; + svm_msg_q_msg_t _msg, *msg = &_msg; + session_connected_msg_t *mp; + svm_msg_q_t *app_mq; transport_connection_t *tc; - vl_api_registration_t *reg; - svm_queue_t *vpp_queue; - application_t *app; + fifo_segment_t *eq_seg; + app_worker_t *app_wrk; + session_event_t *evt; - app = application_get (app_index); - reg = vl_mem_api_client_index_to_registration (app->api_client_index); - if (!reg) + app_wrk = app_worker_get (app_wrk_index); + app_mq = app_wrk->event_queue; + if (!app_mq) { - clib_warning ("no registration: %u", app->api_client_index); + clib_warning ("app %u with api index: %u not attached", + app_wrk->app_index, app_wrk->api_client_index); return -1; } - mp = vl_mem_api_alloc_as_if_client_w_reg (reg, sizeof (*mp)); - mp->_vl_msg_id = clib_host_to_net_u16 (VL_API_CONNECT_SESSION_REPLY); + if (mq_try_lock_and_alloc_msg (app_mq, msg)) + return SESSION_E_MQ_MSG_ALLOC; + + evt = svm_msg_q_msg_data (app_mq, msg); + clib_memset (evt, 0, sizeof (*evt)); + evt->event_type = SESSION_CTRL_EVT_CONNECTED; + mp = (session_connected_msg_t *) evt->data; + clib_memset (mp, 0, sizeof (*mp)); mp->context = api_context; - if (is_fail) + if (err) goto done; + eq_seg = session_main_get_evt_q_segment (); + if (session_has_transport (s)) { tc = session_get_transport (s); if (!tc) { - is_fail = 1; + clib_warning ("failed to retrieve transport!"); + err = SESSION_E_REFUSED; goto done; } - vpp_queue = session_manager_get_vpp_event_queue (s->thread_index); mp->handle = session_handle (s); - mp->vpp_event_queue_address = pointer_to_uword (vpp_queue); - clib_memcpy (mp->lcl_ip, &tc->lcl_ip, sizeof (tc->lcl_ip)); - mp->is_ip4 = tc->is_ip4; - mp->lcl_port = tc->lcl_port; - mp->server_rx_fifo = pointer_to_uword (s->server_rx_fifo); - mp->server_tx_fifo = pointer_to_uword (s->server_tx_fifo); + mp->vpp_event_queue_address = + fifo_segment_msg_q_offset (eq_seg, s->thread_index); + + session_get_endpoint (s, &mp->lcl, 1 /* is_lcl */ ); + + mp->server_rx_fifo = fifo_segment_fifo_offset (s->rx_fifo); + mp->server_tx_fifo = fifo_segment_fifo_offset (s->tx_fifo); + mp->segment_handle = session_segment_handle (s); } else { - local_session_t *ls = (local_session_t *) s; - mp->handle = application_local_session_handle (ls); - mp->lcl_port = ls->port; - mp->vpp_event_queue_address = ls->server_evt_q; - mp->client_event_queue_address = ls->client_evt_q; - mp->server_rx_fifo = pointer_to_uword (s->server_tx_fifo); - mp->server_tx_fifo = pointer_to_uword (s->server_rx_fifo); + ct_connection_t *cct; + session_t *ss; + + cct = (ct_connection_t *) session_get_transport (s); + mp->handle = session_handle (s); + mp->lcl.port = cct->c_lcl_port; + mp->lcl.is_ip4 = cct->c_is_ip4; + mp->vpp_event_queue_address = + fifo_segment_msg_q_offset (eq_seg, s->thread_index); + mp->server_rx_fifo = fifo_segment_fifo_offset (s->rx_fifo); + mp->server_tx_fifo = fifo_segment_fifo_offset (s->tx_fifo); + mp->segment_handle = session_segment_handle (s); + ss = ct_session_get_peer (s); + mp->ct_rx_fifo = fifo_segment_fifo_offset (ss->tx_fifo); + mp->ct_tx_fifo = fifo_segment_fifo_offset (ss->rx_fifo); + mp->ct_segment_handle = session_segment_handle (ss); } done: - mp->retval = is_fail ? - clib_host_to_net_u32 (VNET_API_ERROR_SESSION_CONNECT) : 0; - vl_msg_api_send_shmem (reg->vl_input_queue, (u8 *) & mp); + mp->retval = err; + + svm_msg_q_add_and_unlock (app_mq, msg); return 0; } -static session_cb_vft_t session_cb_vft = { - .session_accept_callback = send_session_accept_callback, - .session_disconnect_callback = send_session_disconnect_callback, - .session_connected_callback = send_session_connected_callback, - .session_reset_callback = send_session_reset_callback, - .add_segment_callback = send_add_segment_callback, - .del_segment_callback = send_del_segment_callback, -}; - -static void -vl_api_session_enable_disable_t_handler (vl_api_session_enable_disable_t * mp) +int +mq_send_session_bound_cb (u32 app_wrk_index, u32 api_context, + session_handle_t handle, int rv) { - vl_api_session_enable_disable_reply_t *rmp; - vlib_main_t *vm = vlib_get_main (); - int rv = 0; + svm_msg_q_msg_t _msg, *msg = &_msg; + svm_msg_q_t *app_mq; + transport_endpoint_t tep; + session_bound_msg_t *mp; + fifo_segment_t *eq_seg; + app_worker_t *app_wrk; + session_event_t *evt; + app_listener_t *al; + session_t *ls = 0; + app_wrk = app_worker_get (app_wrk_index); + app_mq = app_wrk->event_queue; + if (!app_mq) + { + clib_warning ("app %u with api index: %u not attached", + app_wrk->app_index, app_wrk->api_client_index); + return -1; + } - vnet_session_enable_disable (vm, mp->is_enable); - REPLY_MACRO (VL_API_SESSION_ENABLE_DISABLE_REPLY); -} + if (mq_try_lock_and_alloc_msg (app_mq, msg)) + return SESSION_E_MQ_MSG_ALLOC; -static void -vl_api_application_attach_t_handler (vl_api_application_attach_t * mp) -{ - vl_api_application_attach_reply_t *rmp; - ssvm_private_t *segp, *evt_q_segment; - vnet_app_attach_args_t _a, *a = &_a; - vl_api_registration_t *reg; - clib_error_t *error = 0; - int rv = 0; - - reg = vl_api_client_index_to_registration (mp->client_index); - if (!reg) - return; + evt = svm_msg_q_msg_data (app_mq, msg); + clib_memset (evt, 0, sizeof (*evt)); + evt->event_type = SESSION_CTRL_EVT_BOUND; + mp = (session_bound_msg_t *) evt->data; + mp->context = api_context; - if (session_manager_is_enabled () == 0) - { - rv = VNET_API_ERROR_FEATURE_DISABLED; - goto done; - } + if (rv) + goto done; - STATIC_ASSERT (sizeof (u64) * APP_OPTIONS_N_OPTIONS <= - sizeof (mp->options), - "Out of options, fix api message definition"); + mp->handle = handle; + al = app_listener_get_w_handle (handle); + if (al->session_index != SESSION_INVALID_INDEX) + ls = app_listener_get_session (al); + else + ls = app_listener_get_local_session (al); - memset (a, 0, sizeof (*a)); - a->api_client_index = mp->client_index; - a->options = mp->options; - a->session_cb_vft = &session_cb_vft; + session_get_endpoint (ls, &tep, 1 /* is_lcl */ ); + mp->lcl_port = tep.port; + mp->lcl_is_ip4 = tep.is_ip4; + clib_memcpy_fast (mp->lcl_ip, &tep.ip, sizeof (tep.ip)); - if (mp->namespace_id_len > 64) - { - rv = VNET_API_ERROR_INVALID_VALUE; - goto done; - } + eq_seg = session_main_get_evt_q_segment (); + mp->vpp_evt_q = fifo_segment_msg_q_offset (eq_seg, ls->thread_index); - if (mp->namespace_id_len) + if (session_transport_service_type (ls) == TRANSPORT_SERVICE_CL) { - vec_validate (a->namespace_id, mp->namespace_id_len - 1); - clib_memcpy (a->namespace_id, mp->namespace_id, mp->namespace_id_len); + mp->rx_fifo = fifo_segment_fifo_offset (ls->rx_fifo); + mp->tx_fifo = fifo_segment_fifo_offset (ls->tx_fifo); + mp->segment_handle = session_segment_handle (ls); } - if ((error = vnet_application_attach (a))) - { - rv = clib_error_get_code (error); - clib_error_report (error); - } - vec_free (a->namespace_id); - done: + mp->retval = rv; + svm_msg_q_add_and_unlock (app_mq, msg); + return 0; +} - /* *INDENT-OFF* */ - REPLY_MACRO2 (VL_API_APPLICATION_ATTACH_REPLY, ({ - if (!rv) - { - segp = a->segment; - rmp->segment_name_length = 0; - rmp->segment_size = segp->ssvm_size; - if (vec_len (segp->name)) - { - memcpy (rmp->segment_name, segp->name, vec_len (segp->name)); - rmp->segment_name_length = vec_len (segp->name); - } - rmp->app_event_queue_address = a->app_event_queue_address; - } - })); - /* *INDENT-ON* */ +void +mq_send_unlisten_reply (app_worker_t * app_wrk, session_handle_t sh, + u32 context, int rv) +{ + svm_msg_q_msg_t _msg, *msg = &_msg; + session_unlisten_reply_msg_t *ump; + svm_msg_q_t *app_mq; + session_event_t *evt; - if (rv) + app_mq = app_wrk->event_queue; + if (mq_try_lock_and_alloc_msg (app_mq, msg)) return; - /* Send fifo segment fd if needed */ - if (ssvm_type (a->segment) == SSVM_SEGMENT_MEMFD) - session_send_memfd_fd (reg, a->segment); - /* Send event queues segment */ - if ((evt_q_segment = session_manager_get_evt_q_segment ())) - session_send_memfd_fd (reg, evt_q_segment); + evt = svm_msg_q_msg_data (app_mq, msg); + clib_memset (evt, 0, sizeof (*evt)); + evt->event_type = SESSION_CTRL_EVT_UNLISTEN_REPLY; + ump = (session_unlisten_reply_msg_t *) evt->data; + ump->context = context; + ump->handle = sh; + ump->retval = rv; + svm_msg_q_add_and_unlock (app_mq, msg); } static void -vl_api_application_detach_t_handler (vl_api_application_detach_t * mp) +mq_send_session_migrate_cb (session_t * s, session_handle_t new_sh) { - vl_api_application_detach_reply_t *rmp; - int rv = VNET_API_ERROR_INVALID_VALUE_2; - vnet_app_detach_args_t _a, *a = &_a; - application_t *app; - - if (session_manager_is_enabled () == 0) - { - rv = VNET_API_ERROR_FEATURE_DISABLED; - goto done; - } - - app = application_lookup (mp->client_index); - if (app) - { - a->app_index = app->index; - rv = vnet_application_detach (a); - } + svm_msg_q_msg_t _msg, *msg = &_msg; + session_migrated_msg_t *mp; + fifo_segment_t *eq_seg; + app_worker_t *app_wrk; + session_event_t *evt; + svm_msg_q_t *app_mq; + u32 thread_index; + + thread_index = session_thread_from_handle (new_sh); + eq_seg = session_main_get_evt_q_segment (); + + app_wrk = app_worker_get (s->app_wrk_index); + app_mq = app_wrk->event_queue; + if (mq_try_lock_and_alloc_msg (app_mq, msg)) + return; -done: - REPLY_MACRO (VL_API_APPLICATION_DETACH_REPLY); + evt = svm_msg_q_msg_data (app_mq, msg); + clib_memset (evt, 0, sizeof (*evt)); + evt->event_type = SESSION_CTRL_EVT_MIGRATED; + mp = (session_migrated_msg_t *) evt->data; + mp->handle = session_handle (s); + mp->new_handle = new_sh; + mp->vpp_thread_index = thread_index; + mp->vpp_evt_q = fifo_segment_msg_q_offset (eq_seg, thread_index); + mp->segment_handle = session_segment_handle (s); + svm_msg_q_add_and_unlock (app_mq, msg); } -static void -vl_api_bind_uri_t_handler (vl_api_bind_uri_t * mp) +static int +mq_send_add_segment_cb (u32 app_wrk_index, u64 segment_handle) { - transport_connection_t *tc = 0; - vnet_bind_args_t _a, *a = &_a; - vl_api_bind_uri_reply_t *rmp; - stream_session_t *s; - application_t *app = 0; - svm_queue_t *vpp_evt_q; - int rv; + int fds[SESSION_N_FD_TYPE], n_fds = 0; + svm_msg_q_msg_t _msg, *msg = &_msg; + session_app_add_segment_msg_t *mp; + vl_api_registration_t *reg; + app_worker_t *app_wrk; + session_event_t *evt; + svm_msg_q_t *app_mq; + fifo_segment_t *fs; + ssvm_private_t *sp; + u8 fd_flags = 0; - if (session_manager_is_enabled () == 0) - { - rv = VNET_API_ERROR_FEATURE_DISABLED; - goto done; - } + app_wrk = app_worker_get (app_wrk_index); - app = application_lookup (mp->client_index); - if (app) + reg = vl_mem_api_client_index_to_registration (app_wrk->api_client_index); + if (!reg) { - memset (a, 0, sizeof (*a)); - a->uri = (char *) mp->uri; - a->app_index = app->index; - rv = vnet_bind_uri (a); + clib_warning ("no api registration for client: %u", + app_wrk->api_client_index); + return -1; } - else + + fs = segment_manager_get_segment_w_handle (segment_handle); + sp = &fs->ssvm; + if (ssvm_type (sp) == SSVM_SEGMENT_MEMFD) { - rv = VNET_API_ERROR_APPLICATION_NOT_ATTACHED; - } + if (vl_api_registration_file_index (reg) == VL_API_INVALID_FI) + { + clib_warning ("can't send memfd fd"); + return -1; + } -done: + fd_flags |= SESSION_FD_F_MEMFD_SEGMENT; + fds[n_fds] = sp->fd; + n_fds += 1; + } - /* *INDENT-OFF* */ - REPLY_MACRO2 (VL_API_BIND_URI_REPLY, ({ - if (!rv) - { - rmp->handle = a->handle; - rmp->lcl_is_ip4 = tc->is_ip4; - rmp->lcl_port = tc->lcl_port; - if (app && application_has_global_scope (app)) - { - s = listen_session_get_from_handle (a->handle); - tc = listen_session_get_transport (s); - clib_memcpy (rmp->lcl_ip, &tc->lcl_ip, sizeof(tc->lcl_ip)); - if (session_transport_service_type (s) == TRANSPORT_SERVICE_CL) - { - rmp->rx_fifo = pointer_to_uword (s->server_rx_fifo); - rmp->tx_fifo = pointer_to_uword (s->server_tx_fifo); - vpp_evt_q = session_manager_get_vpp_event_queue (0); - rmp->vpp_evt_q = pointer_to_uword (vpp_evt_q); - } - } - } - })); - /* *INDENT-ON* */ -} + app_mq = app_wrk->event_queue; + if (mq_try_lock_and_alloc_msg (app_mq, msg)) + return -1; -static void -vl_api_unbind_uri_t_handler (vl_api_unbind_uri_t * mp) -{ - vl_api_unbind_uri_reply_t *rmp; - application_t *app; - vnet_unbind_args_t _a, *a = &_a; - int rv; + if (n_fds) + session_send_fds (reg, fds, n_fds); - if (session_manager_is_enabled () == 0) - { - rv = VNET_API_ERROR_FEATURE_DISABLED; - goto done; - } + evt = svm_msg_q_msg_data (app_mq, msg); + clib_memset (evt, 0, sizeof (*evt)); + evt->event_type = SESSION_CTRL_EVT_APP_ADD_SEGMENT; + mp = (session_app_add_segment_msg_t *) evt->data; + clib_memset (mp, 0, sizeof (*mp)); + mp->segment_size = sp->ssvm_size; + mp->fd_flags = fd_flags; + mp->segment_handle = segment_handle; + strncpy ((char *) mp->segment_name, (char *) sp->name, + sizeof (mp->segment_name) - 1); - app = application_lookup (mp->client_index); - if (app) - { - a->uri = (char *) mp->uri; - a->app_index = app->index; - rv = vnet_unbind_uri (a); - } - else - { - rv = VNET_API_ERROR_APPLICATION_NOT_ATTACHED; - } + svm_msg_q_add_and_unlock (app_mq, msg); -done: - REPLY_MACRO (VL_API_UNBIND_URI_REPLY); + return 0; } -static void -vl_api_connect_uri_t_handler (vl_api_connect_uri_t * mp) +static int +mq_send_del_segment_cb (u32 app_wrk_index, u64 segment_handle) { - vl_api_connect_session_reply_t *rmp; - vnet_connect_args_t _a, *a = &_a; - application_t *app; - clib_error_t *error = 0; - int rv = 0; + svm_msg_q_msg_t _msg, *msg = &_msg; + session_app_del_segment_msg_t *mp; + vl_api_registration_t *reg; + app_worker_t *app_wrk; + session_event_t *evt; + svm_msg_q_t *app_mq; - if (session_manager_is_enabled () == 0) + app_wrk = app_worker_get (app_wrk_index); + reg = vl_mem_api_client_index_to_registration (app_wrk->api_client_index); + if (!reg) { - rv = VNET_API_ERROR_FEATURE_DISABLED; - goto done; + clib_warning ("no registration: %u", app_wrk->api_client_index); + return -1; } - app = application_lookup (mp->client_index); - if (app) - { - a->uri = (char *) mp->uri; - a->api_context = mp->context; - a->app_index = app->index; - if ((error = vnet_connect_uri (a))) - { - rv = clib_error_get_code (error); - clib_error_report (error); - } - } - else - { - rv = VNET_API_ERROR_APPLICATION_NOT_ATTACHED; - } + app_mq = app_wrk->event_queue; + if (mq_try_lock_and_alloc_msg (app_mq, msg)) + return -1; - /* - * Don't reply to stream (tcp) connects. The reply will come once - * the connection is established. In case of the redirects, the reply - * will come from the server app. - */ - if (rv == 0) - return; + evt = svm_msg_q_msg_data (app_mq, msg); + clib_memset (evt, 0, sizeof (*evt)); + evt->event_type = SESSION_CTRL_EVT_APP_DEL_SEGMENT; + mp = (session_app_del_segment_msg_t *) evt->data; + clib_memset (mp, 0, sizeof (*mp)); + mp->segment_handle = segment_handle; + svm_msg_q_add_and_unlock (app_mq, msg); -done: - /* *INDENT-OFF* */ - REPLY_MACRO (VL_API_CONNECT_SESSION_REPLY); - /* *INDENT-ON* */ + return 0; } static void -vl_api_disconnect_session_t_handler (vl_api_disconnect_session_t * mp) +mq_send_session_cleanup_cb (session_t * s, session_cleanup_ntf_t ntf) { - vl_api_disconnect_session_reply_t *rmp; - vnet_disconnect_args_t _a, *a = &_a; - application_t *app; - int rv = 0; + svm_msg_q_msg_t _msg, *msg = &_msg; + session_cleanup_msg_t *mp; + svm_msg_q_t *app_mq; + session_event_t *evt; + app_worker_t *app_wrk; + + /* Propagate transport cleanup notifications only if app didn't close */ + if (ntf == SESSION_CLEANUP_TRANSPORT + && s->session_state != SESSION_STATE_TRANSPORT_DELETED) + return; - if (session_manager_is_enabled () == 0) - { - rv = VNET_API_ERROR_FEATURE_DISABLED; - goto done; - } + app_wrk = app_worker_get_if_valid (s->app_wrk_index); + if (!app_wrk) + return; - app = application_lookup (mp->client_index); - if (app) - { - a->handle = mp->handle; - a->app_index = app->index; - rv = vnet_disconnect_session (a); - } - else - { - rv = VNET_API_ERROR_APPLICATION_NOT_ATTACHED; - } + app_mq = app_wrk->event_queue; + if (mq_try_lock_and_alloc_msg (app_mq, msg)) + return; -done: - REPLY_MACRO2 (VL_API_DISCONNECT_SESSION_REPLY, rmp->handle = mp->handle); + evt = svm_msg_q_msg_data (app_mq, msg); + clib_memset (evt, 0, sizeof (*evt)); + evt->event_type = SESSION_CTRL_EVT_CLEANUP; + mp = (session_cleanup_msg_t *) evt->data; + mp->handle = session_handle (s); + mp->type = ntf; + svm_msg_q_add_and_unlock (app_mq, msg); } +static session_cb_vft_t session_mq_cb_vft = { + .session_accept_callback = mq_send_session_accepted_cb, + .session_disconnect_callback = mq_send_session_disconnected_cb, + .session_connected_callback = mq_send_session_connected_cb, + .session_reset_callback = mq_send_session_reset_cb, + .session_migrate_callback = mq_send_session_migrate_cb, + .session_cleanup_callback = mq_send_session_cleanup_cb, + .add_segment_callback = mq_send_add_segment_cb, + .del_segment_callback = mq_send_del_segment_cb, +}; + static void -vl_api_disconnect_session_reply_t_handler (vl_api_disconnect_session_reply_t * - mp) +vl_api_session_enable_disable_t_handler (vl_api_session_enable_disable_t * mp) { - vnet_disconnect_args_t _a, *a = &_a; - application_t *app; - - /* Client objected to disconnecting the session, log and continue */ - if (mp->retval) - { - clib_warning ("client retval %d", mp->retval); - return; - } + vl_api_session_enable_disable_reply_t *rmp; + vlib_main_t *vm = vlib_get_main (); + int rv = 0; - /* Disconnect has been confirmed. Confirm close to transport */ - app = application_lookup (mp->context); - if (app) - { - a->handle = mp->handle; - a->app_index = app->index; - vnet_disconnect_session (a); - } + vnet_session_enable_disable (vm, mp->is_enable); + REPLY_MACRO (VL_API_SESSION_ENABLE_DISABLE_REPLY); } static void -vl_api_reset_session_reply_t_handler (vl_api_reset_session_reply_t * mp) +vl_api_app_attach_t_handler (vl_api_app_attach_t * mp) { - application_t *app; - stream_session_t *s; - u32 index, thread_index; + int rv = 0, fds[SESSION_N_FD_TYPE], n_fds = 0; + vl_api_app_attach_reply_t *rmp; + fifo_segment_t *segp, *evt_q_segment = 0; + vnet_app_attach_args_t _a, *a = &_a; + u8 fd_flags = 0, ctrl_thread; + vl_api_registration_t *reg; - app = application_lookup (mp->client_index); - if (!app) + reg = vl_api_client_index_to_registration (mp->client_index); + if (!reg) return; - session_parse_handle (mp->handle, &index, &thread_index); - s = session_get_if_valid (index, thread_index); - if (s == 0 || app->index != s->app_index) + if (!session_main_is_enabled () || appns_sapi_enabled ()) { - clib_warning ("Invalid session!"); - return; + rv = VNET_API_ERROR_FEATURE_DISABLED; + goto done; } - - /* Client objected to resetting the session, log and continue */ - if (mp->retval) + /* Only support binary api with socket transport */ + if (vl_api_registration_file_index (reg) == VL_API_INVALID_FI) { - clib_warning ("client retval %d", mp->retval); - return; + rv = VNET_API_ERROR_APP_UNSUPPORTED_CFG; + goto done; } - /* This comes as a response to a reset, transport only waiting for - * confirmation to remove connection state, no need to disconnect */ - stream_session_cleanup (s); -} - -static void -vl_api_accept_session_reply_t_handler (vl_api_accept_session_reply_t * mp) -{ - vnet_disconnect_args_t _a = { 0 }, *a = &_a; - local_session_t *ls; - stream_session_t *s; + STATIC_ASSERT (sizeof (u64) * APP_OPTIONS_N_OPTIONS <= + sizeof (mp->options), + "Out of options, fix api message definition"); - /* Server isn't interested, kill the session */ - if (mp->retval) - { - a->app_index = mp->context; - a->handle = mp->handle; - vnet_disconnect_session (a); - return; - } + clib_memset (a, 0, sizeof (*a)); + a->api_client_index = mp->client_index; + a->options = mp->options; + a->session_cb_vft = &session_mq_cb_vft; + a->namespace_id = vl_api_from_api_to_new_vec (mp, &mp->namespace_id); - if (session_handle_is_local (mp->handle)) - { - ls = application_get_local_session_from_handle (mp->handle); - if (!ls || ls->app_index != mp->context) - { - clib_warning ("server %u doesn't own local handle %llu", - mp->context, mp->handle); - return; - } - if (application_local_session_connect_notify (ls)) - return; - ls->session_state = SESSION_STATE_READY; - } - else + if ((rv = vnet_application_attach (a))) { - s = session_get_from_handle_if_valid (mp->handle); - if (!s) - { - clib_warning ("session doesn't exist"); - return; - } - if (s->app_index != mp->context) - { - clib_warning ("app doesn't own session"); - return; - } - s->session_state = SESSION_STATE_READY; + clib_warning ("attach returned: %d", rv); + vec_free (a->namespace_id); + goto done; } -} - -static void -vl_api_map_another_segment_reply_t_handler (vl_api_map_another_segment_reply_t - * mp) -{ - clib_warning ("not implemented"); -} - -static void -vl_api_bind_sock_t_handler (vl_api_bind_sock_t * mp) -{ - vl_api_bind_sock_reply_t *rmp; - vnet_bind_args_t _a, *a = &_a; - int rv = 0; - clib_error_t *error; - application_t *app = 0; - stream_session_t *s; - transport_connection_t *tc = 0; - ip46_address_t *ip46; - svm_queue_t *vpp_evt_q; + vec_free (a->namespace_id); - if (session_manager_is_enabled () == 0) + /* Send event queues segment */ + if ((evt_q_segment = session_main_get_evt_q_segment ())) { - rv = VNET_API_ERROR_FEATURE_DISABLED; - goto done; + fd_flags |= SESSION_FD_F_VPP_MQ_SEGMENT; + fds[n_fds] = evt_q_segment->ssvm.fd; + n_fds += 1; } - - app = application_lookup (mp->client_index); - if (!app) + /* Send fifo segment fd if needed */ + if (ssvm_type (a->segment) == SSVM_SEGMENT_MEMFD) { - rv = VNET_API_ERROR_APPLICATION_NOT_ATTACHED; - goto done; + fd_flags |= SESSION_FD_F_MEMFD_SEGMENT; + fds[n_fds] = a->segment->fd; + n_fds += 1; } - - ip46 = (ip46_address_t *) mp->ip; - memset (a, 0, sizeof (*a)); - a->sep.is_ip4 = mp->is_ip4; - a->sep.ip = *ip46; - a->sep.port = mp->port; - a->sep.fib_index = mp->vrf; - a->sep.sw_if_index = ENDPOINT_INVALID_INDEX; - a->sep.transport_proto = mp->proto; - a->app_index = app->index; - - if ((error = vnet_bind (a))) + if (a->options[APP_OPTIONS_FLAGS] & APP_OPTIONS_FLAGS_EVT_MQ_USE_EVENTFD) { - rv = clib_error_get_code (error); - clib_error_report (error); + fd_flags |= SESSION_FD_F_MQ_EVENTFD; + fds[n_fds] = svm_msg_q_get_producer_eventfd (a->app_evt_q); + n_fds += 1; } done: /* *INDENT-OFF* */ - REPLY_MACRO2 (VL_API_BIND_SOCK_REPLY,({ + REPLY_MACRO2 (VL_API_APP_ATTACH_REPLY, ({ if (!rv) { - rmp->handle = a->handle; - rmp->lcl_port = mp->port; - rmp->lcl_is_ip4 = mp->is_ip4; - if (app && application_has_global_scope (app)) + ctrl_thread = vlib_num_workers () ? 1 : 0; + segp = (fifo_segment_t *) a->segment; + rmp->app_index = clib_host_to_net_u32 (a->app_index); + rmp->app_mq = fifo_segment_msg_q_offset (segp, 0); + rmp->vpp_ctrl_mq = + fifo_segment_msg_q_offset (evt_q_segment, ctrl_thread); + rmp->vpp_ctrl_mq_thread = ctrl_thread; + rmp->n_fds = n_fds; + rmp->fd_flags = fd_flags; + if (vec_len (segp->ssvm.name)) { - s = listen_session_get_from_handle (a->handle); - tc = listen_session_get_transport (s); - clib_memcpy (rmp->lcl_ip, &tc->lcl_ip, sizeof (tc->lcl_ip)); - if (session_transport_service_type (s) == TRANSPORT_SERVICE_CL) - { - rmp->rx_fifo = pointer_to_uword (s->server_rx_fifo); - rmp->tx_fifo = pointer_to_uword (s->server_tx_fifo); - vpp_evt_q = session_manager_get_vpp_event_queue (0); - rmp->vpp_evt_q = pointer_to_uword (vpp_evt_q); - } + vl_api_vec_to_api_string (segp->ssvm.name, &rmp->segment_name); } + rmp->segment_size = segp->ssvm.ssvm_size; + rmp->segment_handle = clib_host_to_net_u64 (a->segment_handle); } })); /* *INDENT-ON* */ + + if (n_fds) + session_send_fds (reg, fds, n_fds); } static void -vl_api_unbind_sock_t_handler (vl_api_unbind_sock_t * mp) +vl_api_app_worker_add_del_t_handler (vl_api_app_worker_add_del_t * mp) { - vl_api_unbind_sock_reply_t *rmp; - vnet_unbind_args_t _a, *a = &_a; + int rv = 0, fds[SESSION_N_FD_TYPE], n_fds = 0; + vl_api_app_worker_add_del_reply_t *rmp; + vl_api_registration_t *reg; application_t *app; - clib_error_t *error; - int rv = 0; + u8 fd_flags = 0; - if (session_manager_is_enabled () == 0) + if (!session_main_is_enabled () || appns_sapi_enabled ()) { rv = VNET_API_ERROR_FEATURE_DISABLED; goto done; } - app = application_lookup (mp->client_index); - if (app) + reg = vl_api_client_index_to_registration (mp->client_index); + if (!reg) + return; + + app = application_get_if_valid (clib_net_to_host_u32 (mp->app_index)); + if (!app) { - a->app_index = app->index; - a->handle = mp->handle; - if ((error = vnet_unbind (a))) - { - rv = clib_error_get_code (error); - clib_error_report (error); - } + rv = VNET_API_ERROR_INVALID_VALUE; + goto done; + } + + vnet_app_worker_add_del_args_t args = { + .app_index = app->app_index, + .wrk_map_index = clib_net_to_host_u32 (mp->wrk_index), + .api_client_index = mp->client_index, + .is_add = mp->is_add + }; + rv = vnet_app_worker_add_del (&args); + if (rv) + { + clib_warning ("app worker add/del returned: %d", rv); + goto done; } -done: - REPLY_MACRO (VL_API_UNBIND_SOCK_REPLY); + if (!mp->is_add) + goto done; + + /* Send fifo segment fd if needed */ + if (ssvm_type (args.segment) == SSVM_SEGMENT_MEMFD) + { + fd_flags |= SESSION_FD_F_MEMFD_SEGMENT; + fds[n_fds] = args.segment->fd; + n_fds += 1; + } + if (application_segment_manager_properties (app)->use_mq_eventfd) + { + fd_flags |= SESSION_FD_F_MQ_EVENTFD; + fds[n_fds] = svm_msg_q_get_producer_eventfd (args.evt_q); + n_fds += 1; + } + + /* *INDENT-OFF* */ +done: + REPLY_MACRO2 (VL_API_APP_WORKER_ADD_DEL_REPLY, ({ + rmp->is_add = mp->is_add; + rmp->wrk_index = clib_host_to_net_u32 (args.wrk_map_index); + rmp->segment_handle = clib_host_to_net_u64 (args.segment_handle); + if (!rv && mp->is_add) + { + rmp->app_event_queue_address = + fifo_segment_msg_q_offset ((fifo_segment_t *) args.segment, 0); + rmp->n_fds = n_fds; + rmp->fd_flags = fd_flags; + if (vec_len (args.segment->name)) + { + vl_api_vec_to_api_string (args.segment->name, &rmp->segment_name); + } + } + })); + /* *INDENT-ON* */ + + if (n_fds) + session_send_fds (reg, fds, n_fds); } static void -vl_api_connect_sock_t_handler (vl_api_connect_sock_t * mp) +vl_api_application_detach_t_handler (vl_api_application_detach_t * mp) { - vl_api_connect_session_reply_t *rmp; - vnet_connect_args_t _a, *a = &_a; + vl_api_application_detach_reply_t *rmp; + int rv = VNET_API_ERROR_INVALID_VALUE_2; + vnet_app_detach_args_t _a, *a = &_a; application_t *app; - clib_error_t *error = 0; - int rv = 0; - if (session_manager_is_enabled () == 0) + if (!session_main_is_enabled () || appns_sapi_enabled ()) { rv = VNET_API_ERROR_FEATURE_DISABLED; goto done; @@ -865,68 +796,30 @@ vl_api_connect_sock_t_handler (vl_api_connect_sock_t * mp) app = application_lookup (mp->client_index); if (app) { - svm_queue_t *client_q; - ip46_address_t *ip46 = (ip46_address_t *) mp->ip; - - memset (a, 0, sizeof (*a)); - client_q = vl_api_client_index_to_input_queue (mp->client_index); - mp->client_queue_address = pointer_to_uword (client_q); - a->sep.is_ip4 = mp->is_ip4; - a->sep.ip = *ip46; - a->sep.port = mp->port; - a->sep.transport_proto = mp->proto; - a->sep.fib_index = mp->vrf; - a->sep.sw_if_index = ENDPOINT_INVALID_INDEX; - if (mp->hostname_len) - { - vec_validate (a->sep.hostname, mp->hostname_len - 1); - clib_memcpy (a->sep.hostname, mp->hostname, mp->hostname_len); - } - a->api_context = mp->context; - a->app_index = app->index; - if ((error = vnet_connect (a))) - { - rv = clib_error_get_code (error); - clib_error_report (error); - } - vec_free (a->sep.hostname); - } - else - { - rv = VNET_API_ERROR_APPLICATION_NOT_ATTACHED; + a->app_index = app->app_index; + a->api_client_index = mp->client_index; + rv = vnet_application_detach (a); } - if (rv == 0) - return; - - /* Got some error, relay it */ - done: - REPLY_MACRO (VL_API_CONNECT_SESSION_REPLY); + REPLY_MACRO (VL_API_APPLICATION_DETACH_REPLY); } static void vl_api_app_namespace_add_del_t_handler (vl_api_app_namespace_add_del_t * mp) { vl_api_app_namespace_add_del_reply_t *rmp; - clib_error_t *error = 0; u32 appns_index = 0; u8 *ns_id = 0; int rv = 0; - if (!session_manager_is_enabled ()) + if (session_main_is_enabled () == 0) { rv = VNET_API_ERROR_FEATURE_DISABLED; goto done; } - if (mp->namespace_id_len > ARRAY_LEN (mp->namespace_id)) - { - rv = VNET_API_ERROR_INVALID_VALUE; - goto done; - } + ns_id = vl_api_from_api_to_new_vec (mp, &mp->namespace_id); - vec_validate (ns_id, mp->namespace_id_len - 1); - clib_memcpy (ns_id, mp->namespace_id, mp->namespace_id_len); vnet_app_namespace_add_del_args_t args = { .ns_id = ns_id, .secret = clib_net_to_host_u64 (mp->secret), @@ -935,13 +828,8 @@ vl_api_app_namespace_add_del_t_handler (vl_api_app_namespace_add_del_t * mp) .ip6_fib_id = clib_net_to_host_u32 (mp->ip6_fib_id), .is_add = 1 }; - error = vnet_app_namespace_add_del (&args); - if (error) - { - rv = clib_error_get_code (error); - clib_error_report (error); - } - else + rv = vnet_app_namespace_add_del (&args); + if (!rv) { appns_index = app_namespace_index_from_id (ns_id); if (appns_index == APP_NAMESPACE_INVALID_INDEX) @@ -967,17 +855,13 @@ vl_api_session_rule_add_del_t_handler (vl_api_session_rule_add_del_t * mp) vl_api_session_rule_add_del_reply_t *rmp; session_rule_add_del_args_t args; session_rule_table_add_del_args_t *table_args = &args.table_args; - clib_error_t *error; - u8 fib_proto; int rv = 0; - memset (&args, 0, sizeof (args)); - fib_proto = mp->is_ip4 ? FIB_PROTOCOL_IP4 : FIB_PROTOCOL_IP6; + clib_memset (&args, 0, sizeof (args)); + + ip_prefix_decode (&mp->lcl, &table_args->lcl); + ip_prefix_decode (&mp->rmt, &table_args->rmt); - table_args->lcl.fp_len = mp->lcl_plen; - table_args->lcl.fp_proto = fib_proto; - table_args->rmt.fp_len = mp->rmt_plen; - table_args->rmt.fp_proto = fib_proto; table_args->lcl_port = mp->lcl_port; table_args->rmt_port = mp->rmt_port; table_args->action_index = clib_net_to_host_u32 (mp->action_index); @@ -986,18 +870,13 @@ vl_api_session_rule_add_del_t_handler (vl_api_session_rule_add_del_t * mp) table_args->tag = format (0, "%s", mp->tag); args.appns_index = clib_net_to_host_u32 (mp->appns_index); args.scope = mp->scope; - args.transport_proto = mp->transport_proto; + args.transport_proto = + api_session_transport_proto_decode (&mp->transport_proto) == + TRANSPORT_PROTO_UDP ? 1 : 0; - memset (&table_args->lcl.fp_addr, 0, sizeof (table_args->lcl.fp_addr)); - memset (&table_args->rmt.fp_addr, 0, sizeof (table_args->rmt.fp_addr)); - ip_set (&table_args->lcl.fp_addr, mp->lcl_ip, mp->is_ip4); - ip_set (&table_args->rmt.fp_addr, mp->rmt_ip, mp->is_ip4); - error = vnet_session_rule_add_del (&args); - if (error) - { - rv = clib_error_get_code (error); - clib_error_report (error); - } + rv = vnet_session_rule_add_del (&args); + if (rv) + clib_warning ("rule add del returned: %d", rv); vec_free (table_args->tag); REPLY_MACRO (VL_API_SESSION_RULE_ADD_DEL_REPLY); } @@ -1012,27 +891,32 @@ send_session_rule_details4 (mma_rule_16_t * rule, u8 is_local, (session_mask_or_match_4_t *) & rule->match; session_mask_or_match_4_t *mask = (session_mask_or_match_4_t *) & rule->mask; + fib_prefix_t lcl, rmt; rmp = vl_msg_api_alloc (sizeof (*rmp)); - memset (rmp, 0, sizeof (*rmp)); + clib_memset (rmp, 0, sizeof (*rmp)); rmp->_vl_msg_id = ntohs (VL_API_SESSION_RULES_DETAILS); rmp->context = context; - rmp->is_ip4 = 1; - clib_memcpy (rmp->lcl_ip, &match->lcl_ip, sizeof (match->lcl_ip)); - clib_memcpy (rmp->rmt_ip, &match->rmt_ip, sizeof (match->rmt_ip)); - rmp->lcl_plen = ip4_mask_to_preflen (&mask->lcl_ip); - rmp->rmt_plen = ip4_mask_to_preflen (&mask->rmt_ip); + clib_memset (&lcl, 0, sizeof (lcl)); + clib_memset (&rmt, 0, sizeof (rmt)); + ip_set (&lcl.fp_addr, &match->lcl_ip, 1); + ip_set (&rmt.fp_addr, &match->rmt_ip, 1); + lcl.fp_len = ip4_mask_to_preflen (&mask->lcl_ip); + rmt.fp_len = ip4_mask_to_preflen (&mask->rmt_ip); + + ip_prefix_encode (&lcl, &rmp->lcl); + ip_prefix_encode (&rmt, &rmp->rmt); rmp->lcl_port = match->lcl_port; rmp->rmt_port = match->rmt_port; rmp->action_index = clib_host_to_net_u32 (rule->action_index); rmp->scope = - is_local ? SESSION_RULE_SCOPE_LOCAL : SESSION_RULE_SCOPE_GLOBAL; - rmp->transport_proto = transport_proto; + is_local ? SESSION_RULE_SCOPE_API_LOCAL : SESSION_RULE_SCOPE_API_GLOBAL; + rmp->transport_proto = api_session_transport_proto_encode (transport_proto); rmp->appns_index = clib_host_to_net_u32 (appns_index); if (tag) { - clib_memcpy (rmp->tag, tag, vec_len (tag)); + clib_memcpy_fast (rmp->tag, tag, vec_len (tag)); rmp->tag[vec_len (tag)] = 0; } @@ -1049,27 +933,32 @@ send_session_rule_details6 (mma_rule_40_t * rule, u8 is_local, (session_mask_or_match_6_t *) & rule->match; session_mask_or_match_6_t *mask = (session_mask_or_match_6_t *) & rule->mask; + fib_prefix_t lcl, rmt; rmp = vl_msg_api_alloc (sizeof (*rmp)); - memset (rmp, 0, sizeof (*rmp)); + clib_memset (rmp, 0, sizeof (*rmp)); rmp->_vl_msg_id = ntohs (VL_API_SESSION_RULES_DETAILS); rmp->context = context; - rmp->is_ip4 = 0; - clib_memcpy (rmp->lcl_ip, &match->lcl_ip, sizeof (match->lcl_ip)); - clib_memcpy (rmp->rmt_ip, &match->rmt_ip, sizeof (match->rmt_ip)); - rmp->lcl_plen = ip6_mask_to_preflen (&mask->lcl_ip); - rmp->rmt_plen = ip6_mask_to_preflen (&mask->rmt_ip); + clib_memset (&lcl, 0, sizeof (lcl)); + clib_memset (&rmt, 0, sizeof (rmt)); + ip_set (&lcl.fp_addr, &match->lcl_ip, 0); + ip_set (&rmt.fp_addr, &match->rmt_ip, 0); + lcl.fp_len = ip6_mask_to_preflen (&mask->lcl_ip); + rmt.fp_len = ip6_mask_to_preflen (&mask->rmt_ip); + + ip_prefix_encode (&lcl, &rmp->lcl); + ip_prefix_encode (&rmt, &rmp->rmt); rmp->lcl_port = match->lcl_port; rmp->rmt_port = match->rmt_port; rmp->action_index = clib_host_to_net_u32 (rule->action_index); rmp->scope = - is_local ? SESSION_RULE_SCOPE_LOCAL : SESSION_RULE_SCOPE_GLOBAL; - rmp->transport_proto = transport_proto; + is_local ? SESSION_RULE_SCOPE_API_LOCAL : SESSION_RULE_SCOPE_API_GLOBAL; + rmp->transport_proto = api_session_transport_proto_encode (transport_proto); rmp->appns_index = clib_host_to_net_u32 (appns_index); if (tag) { - clib_memcpy (rmp->tag, tag, vec_len (tag)); + clib_memcpy_fast (rmp->tag, tag, vec_len (tag)); rmp->tag[vec_len (tag)] = 0; } @@ -1092,12 +981,12 @@ send_session_rules_table_details (session_rules_table_t * srt, u8 fib_proto, u8 *tag = 0; /* *INDENT-OFF* */ srt16 = &srt->session_rules_tables_16; - pool_foreach (rule16, srt16->rules, ({ + pool_foreach (rule16, srt16->rules) { ri = mma_rules_table_rule_index_16 (srt16, rule16); tag = session_rules_table_rule_tag (srt, ri, 1); send_session_rule_details4 (rule16, is_local, tp, appns_index, tag, reg, context); - })); + } /* *INDENT-ON* */ } if (is_local || fib_proto == FIB_PROTOCOL_IP6) @@ -1105,18 +994,18 @@ send_session_rules_table_details (session_rules_table_t * srt, u8 fib_proto, u8 *tag = 0; /* *INDENT-OFF* */ srt40 = &srt->session_rules_tables_40; - pool_foreach (rule40, srt40->rules, ({ + pool_foreach (rule40, srt40->rules) { ri = mma_rules_table_rule_index_40 (srt40, rule40); tag = session_rules_table_rule_tag (srt, ri, 1); send_session_rule_details6 (rule40, is_local, tp, appns_index, tag, reg, context); - })); + } /* *INDENT-ON* */ } } static void -vl_api_session_rules_dump_t_handler (vl_api_one_map_server_dump_t * mp) +vl_api_session_rules_dump_t_handler (vl_api_session_rules_dump_t * mp) { vl_api_registration_t *reg; session_table_t *st; @@ -1128,7 +1017,7 @@ vl_api_session_rules_dump_t_handler (vl_api_one_map_server_dump_t * mp) /* *INDENT-OFF* */ session_table_foreach (st, ({ - for (tp = 0; tp < TRANSPORT_N_PROTO; tp++) + for (tp = 0; tp < TRANSPORT_N_PROTOS; tp++) { send_session_rules_table_details (&st->session_rules[tp], st->active_fib_proto, tp, @@ -1140,83 +1029,71 @@ vl_api_session_rules_dump_t_handler (vl_api_one_map_server_dump_t * mp) } static void -vl_api_application_tls_cert_add_t_handler (vl_api_application_tls_cert_add_t * - mp) +vl_api_app_add_cert_key_pair_t_handler (vl_api_app_add_cert_key_pair_t * mp) { - vl_api_app_namespace_add_del_reply_t *rmp; - vnet_app_add_tls_cert_args_t _a, *a = &_a; - clib_error_t *error; - application_t *app; - u32 cert_len; + vl_api_app_add_cert_key_pair_reply_t *rmp; + vnet_app_add_cert_key_pair_args_t _a, *a = &_a; + u32 certkey_len, key_len, cert_len; int rv = 0; - if (!session_manager_is_enabled ()) + if (session_main_is_enabled () == 0) { rv = VNET_API_ERROR_FEATURE_DISABLED; goto done; } - if (!(app = application_lookup (mp->client_index))) + + cert_len = clib_net_to_host_u16 (mp->cert_len); + if (cert_len > 10000) { - rv = VNET_API_ERROR_APPLICATION_NOT_ATTACHED; + rv = VNET_API_ERROR_INVALID_VALUE; goto done; } - memset (a, 0, sizeof (*a)); - a->app_index = app->index; - cert_len = clib_net_to_host_u16 (mp->cert_len); - if (cert_len > 10000) + + certkey_len = clib_net_to_host_u16 (mp->certkey_len); + if (certkey_len < cert_len) { rv = VNET_API_ERROR_INVALID_VALUE; goto done; } - vec_validate (a->cert, cert_len); - clib_memcpy (a->cert, mp->cert, cert_len); - if ((error = vnet_app_add_tls_cert (a))) + + key_len = certkey_len - cert_len; + if (key_len > 10000) { - rv = clib_error_get_code (error); - clib_error_report (error); + rv = VNET_API_ERROR_INVALID_VALUE; + goto done; } - vec_free (a->cert); + + clib_memset (a, 0, sizeof (*a)); + a->cert = mp->certkey; + a->key = mp->certkey + cert_len; + a->cert_len = cert_len; + a->key_len = key_len; + rv = vnet_app_add_cert_key_pair (a); + done: - REPLY_MACRO (VL_API_APPLICATION_TLS_CERT_ADD_REPLY); + /* *INDENT-OFF* */ + REPLY_MACRO2 (VL_API_APP_ADD_CERT_KEY_PAIR_REPLY, ({ + if (!rv) + rmp->index = clib_host_to_net_u32 (a->index); + })); + /* *INDENT-ON* */ } static void -vl_api_application_tls_key_add_t_handler (vl_api_application_tls_key_add_t * - mp) +vl_api_app_del_cert_key_pair_t_handler (vl_api_app_del_cert_key_pair_t * mp) { - vl_api_app_namespace_add_del_reply_t *rmp; - vnet_app_add_tls_key_args_t _a, *a = &_a; - clib_error_t *error; - application_t *app; - u32 key_len; + vl_api_app_del_cert_key_pair_reply_t *rmp; + u32 ckpair_index; int rv = 0; - if (!session_manager_is_enabled ()) + if (session_main_is_enabled () == 0) { rv = VNET_API_ERROR_FEATURE_DISABLED; goto done; } - if (!(app = application_lookup (mp->client_index))) - { - rv = VNET_API_ERROR_APPLICATION_NOT_ATTACHED; - goto done; - } - memset (a, 0, sizeof (*a)); - a->app_index = app->index; - key_len = clib_net_to_host_u16 (mp->key_len); - if (key_len > 10000) - { - rv = VNET_API_ERROR_INVALID_VALUE; - goto done; - } - vec_validate (a->key, key_len); - clib_memcpy (a->key, mp->key, key_len); - if ((error = vnet_app_add_tls_key (a))) - { - rv = clib_error_get_code (error); - clib_error_report (error); - } - vec_free (a->key); + ckpair_index = clib_net_to_host_u32 (mp->index); + rv = vnet_app_del_cert_key_pair (ckpair_index); + done: - REPLY_MACRO (VL_API_APPLICATION_TLS_KEY_ADD_REPLY); + REPLY_MACRO (VL_API_APP_DEL_CERT_KEY_PAIR_REPLY); } static clib_error_t * @@ -1226,7 +1103,8 @@ application_reaper_cb (u32 client_index) vnet_app_detach_args_t _a, *a = &_a; if (app) { - a->app_index = app->index; + a->app_index = app->app_index; + a->api_client_index = client_index; vnet_application_detach (a); } return 0; @@ -1249,14 +1127,14 @@ setup_message_id_table (api_main_t * am) /* * session_api_hookup * Add uri's API message handlers to the table. - * vlib has alread mapped shared memory and + * vlib has already mapped shared memory and * added the client registration handlers. * See .../open-repo/vlib/memclnt_vlib.c:memclnt_process() */ static clib_error_t * session_api_hookup (vlib_main_t * vm) { - api_main_t *am = &api_main; + api_main_t *am = vlibapi_get_main (); #define _(N,n) \ vl_msg_api_set_handlers(VL_API_##N, #n, \ @@ -1268,16 +1146,6 @@ session_api_hookup (vlib_main_t * vm) foreach_session_api_msg; #undef _ - /* - * Messages which bounce off the data-plane to - * an API client. Simply tells the message handling infra not - * to free the message. - * - * Bounced message handlers MUST NOT block the data plane - */ - am->message_bounce[VL_API_CONNECT_URI] = 1; - am->message_bounce[VL_API_CONNECT_SOCK] = 1; - /* * Set up the (msg_name, crc, message-id) table */ @@ -1288,6 +1156,522 @@ session_api_hookup (vlib_main_t * vm) VLIB_API_INIT_FUNCTION (session_api_hookup); +/* + * Socket api functions + */ + +static void +sapi_send_fds (app_worker_t * app_wrk, int *fds, int n_fds) +{ + app_sapi_msg_t smsg = { 0 }; + app_namespace_t *app_ns; + application_t *app; + clib_socket_t *cs; + u32 cs_index; + + app = application_get (app_wrk->app_index); + app_ns = app_namespace_get (app->ns_index); + cs_index = appns_sapi_handle_sock_index (app_wrk->api_client_index); + cs = appns_sapi_get_socket (app_ns, cs_index); + if (PREDICT_FALSE (!cs)) + return; + + /* There's no payload for the message only the type */ + smsg.type = APP_SAPI_MSG_TYPE_SEND_FDS; + clib_socket_sendmsg (cs, &smsg, sizeof (smsg), fds, n_fds); +} + +static int +mq_send_add_segment_sapi_cb (u32 app_wrk_index, u64 segment_handle) +{ + int fds[SESSION_N_FD_TYPE], n_fds = 0; + svm_msg_q_msg_t _msg, *msg = &_msg; + session_app_add_segment_msg_t *mp; + app_worker_t *app_wrk; + session_event_t *evt; + svm_msg_q_t *app_mq; + fifo_segment_t *fs; + ssvm_private_t *sp; + u8 fd_flags = 0; + + app_wrk = app_worker_get (app_wrk_index); + + fs = segment_manager_get_segment_w_handle (segment_handle); + sp = &fs->ssvm; + ASSERT (ssvm_type (sp) == SSVM_SEGMENT_MEMFD); + + fd_flags |= SESSION_FD_F_MEMFD_SEGMENT; + fds[n_fds] = sp->fd; + n_fds += 1; + + app_mq = app_wrk->event_queue; + if (mq_try_lock_and_alloc_msg (app_mq, msg)) + return -1; + + /* + * Send the fd over api socket + */ + sapi_send_fds (app_wrk, fds, n_fds); + + /* + * Send the actual message over mq + */ + evt = svm_msg_q_msg_data (app_mq, msg); + clib_memset (evt, 0, sizeof (*evt)); + evt->event_type = SESSION_CTRL_EVT_APP_ADD_SEGMENT; + mp = (session_app_add_segment_msg_t *) evt->data; + clib_memset (mp, 0, sizeof (*mp)); + mp->segment_size = sp->ssvm_size; + mp->fd_flags = fd_flags; + mp->segment_handle = segment_handle; + strncpy ((char *) mp->segment_name, (char *) sp->name, + sizeof (mp->segment_name) - 1); + + svm_msg_q_add_and_unlock (app_mq, msg); + + return 0; +} + +static int +mq_send_del_segment_sapi_cb (u32 app_wrk_index, u64 segment_handle) +{ + svm_msg_q_msg_t _msg, *msg = &_msg; + session_app_del_segment_msg_t *mp; + app_worker_t *app_wrk; + session_event_t *evt; + svm_msg_q_t *app_mq; + + app_wrk = app_worker_get (app_wrk_index); + + app_mq = app_wrk->event_queue; + if (mq_try_lock_and_alloc_msg (app_mq, msg)) + return -1; + + evt = svm_msg_q_msg_data (app_mq, msg); + clib_memset (evt, 0, sizeof (*evt)); + evt->event_type = SESSION_CTRL_EVT_APP_DEL_SEGMENT; + mp = (session_app_del_segment_msg_t *) evt->data; + clib_memset (mp, 0, sizeof (*mp)); + mp->segment_handle = segment_handle; + svm_msg_q_add_and_unlock (app_mq, msg); + + return 0; +} + +static session_cb_vft_t session_mq_sapi_cb_vft = { + .session_accept_callback = mq_send_session_accepted_cb, + .session_disconnect_callback = mq_send_session_disconnected_cb, + .session_connected_callback = mq_send_session_connected_cb, + .session_reset_callback = mq_send_session_reset_cb, + .session_migrate_callback = mq_send_session_migrate_cb, + .session_cleanup_callback = mq_send_session_cleanup_cb, + .add_segment_callback = mq_send_add_segment_sapi_cb, + .del_segment_callback = mq_send_del_segment_sapi_cb, +}; + +static void +session_api_attach_handler (app_namespace_t * app_ns, clib_socket_t * cs, + app_sapi_attach_msg_t * mp) +{ + int rv = 0, fds[SESSION_N_FD_TYPE], n_fds = 0; + vnet_app_attach_args_t _a, *a = &_a; + app_sapi_attach_reply_msg_t *rmp; + fifo_segment_t *evt_q_segment; + u8 fd_flags = 0, ctrl_thread; + app_ns_api_handle_t *handle; + app_sapi_msg_t msg = { 0 }; + app_worker_t *app_wrk; + application_t *app; + + /* Make sure name is null terminated */ + mp->name[63] = 0; + + clib_memset (a, 0, sizeof (*a)); + a->api_client_index = appns_sapi_socket_handle (app_ns, cs); + a->name = format (0, "%s", (char *) mp->name); + a->options = mp->options; + a->session_cb_vft = &session_mq_sapi_cb_vft; + a->use_sock_api = 1; + a->options[APP_OPTIONS_NAMESPACE] = app_namespace_index (app_ns); + + if ((rv = vnet_application_attach (a))) + { + clib_warning ("attach returned: %d", rv); + goto done; + } + + /* Send event queues segment */ + if ((evt_q_segment = session_main_get_evt_q_segment ())) + { + fd_flags |= SESSION_FD_F_VPP_MQ_SEGMENT; + fds[n_fds] = evt_q_segment->ssvm.fd; + n_fds += 1; + } + /* Send fifo segment fd if needed */ + if (ssvm_type (a->segment) == SSVM_SEGMENT_MEMFD) + { + fd_flags |= SESSION_FD_F_MEMFD_SEGMENT; + fds[n_fds] = a->segment->fd; + n_fds += 1; + } + if (a->options[APP_OPTIONS_FLAGS] & APP_OPTIONS_FLAGS_EVT_MQ_USE_EVENTFD) + { + fd_flags |= SESSION_FD_F_MQ_EVENTFD; + fds[n_fds] = svm_msg_q_get_producer_eventfd (a->app_evt_q); + n_fds += 1; + } + +done: + + msg.type = APP_SAPI_MSG_TYPE_ATTACH_REPLY; + rmp = &msg.attach_reply; + rmp->retval = rv; + if (!rv) + { + ctrl_thread = vlib_num_workers ()? 1 : 0; + rmp->app_index = a->app_index; + rmp->app_mq = + fifo_segment_msg_q_offset ((fifo_segment_t *) a->segment, 0); + rmp->vpp_ctrl_mq = + fifo_segment_msg_q_offset (evt_q_segment, ctrl_thread); + rmp->vpp_ctrl_mq_thread = ctrl_thread; + rmp->n_fds = n_fds; + rmp->fd_flags = fd_flags; + /* No segment name and size since we only support memfds + * in this configuration */ + rmp->segment_handle = a->segment_handle; + rmp->api_client_handle = a->api_client_index; + + /* Update app index for socket */ + handle = (app_ns_api_handle_t *) & cs->private_data; + app = application_get (a->app_index); + app_wrk = application_get_worker (app, 0); + handle->aah_app_wrk_index = app_wrk->wrk_index; + } + + clib_socket_sendmsg (cs, &msg, sizeof (msg), fds, n_fds); + vec_free (a->name); +} + +static void +sapi_socket_close_w_handle (u32 api_handle) +{ + app_namespace_t *app_ns = app_namespace_get (api_handle >> 16); + u16 sock_index = api_handle & 0xffff; + app_ns_api_handle_t *handle; + clib_socket_t *cs; + clib_file_t *cf; + + cs = appns_sapi_get_socket (app_ns, sock_index); + if (!cs) + return; + + handle = (app_ns_api_handle_t *) & cs->private_data; + cf = clib_file_get (&file_main, handle->aah_file_index); + clib_file_del (&file_main, cf); + + clib_socket_close (cs); + appns_sapi_free_socket (app_ns, cs); +} + +static void +sapi_add_del_worker_handler (app_namespace_t * app_ns, + clib_socket_t * cs, + app_sapi_worker_add_del_msg_t * mp) +{ + int rv = 0, fds[SESSION_N_FD_TYPE], n_fds = 0; + app_sapi_worker_add_del_reply_msg_t *rmp; + app_ns_api_handle_t *handle; + app_sapi_msg_t msg = { 0 }; + app_worker_t *app_wrk; + u32 sapi_handle = -1; + application_t *app; + u8 fd_flags = 0; + + app = application_get_if_valid (mp->app_index); + if (!app) + { + rv = VNET_API_ERROR_INVALID_VALUE; + goto done; + } + + sapi_handle = appns_sapi_socket_handle (app_ns, cs); + + vnet_app_worker_add_del_args_t args = { + .app_index = app->app_index, + .wrk_map_index = mp->wrk_index, + .api_client_index = sapi_handle, + .is_add = mp->is_add + }; + rv = vnet_app_worker_add_del (&args); + if (rv) + { + clib_warning ("app worker add/del returned: %d", rv); + goto done; + } + + if (!mp->is_add) + { + sapi_socket_close_w_handle (sapi_handle); + goto done; + } + + /* Send fifo segment fd if needed */ + if (ssvm_type (args.segment) == SSVM_SEGMENT_MEMFD) + { + fd_flags |= SESSION_FD_F_MEMFD_SEGMENT; + fds[n_fds] = args.segment->fd; + n_fds += 1; + } + if (application_segment_manager_properties (app)->use_mq_eventfd) + { + fd_flags |= SESSION_FD_F_MQ_EVENTFD; + fds[n_fds] = svm_msg_q_get_producer_eventfd (args.evt_q); + n_fds += 1; + } + +done: + + msg.type = APP_SAPI_MSG_TYPE_ADD_DEL_WORKER_REPLY; + rmp = &msg.worker_add_del_reply; + rmp->retval = rv; + rmp->is_add = mp->is_add; + rmp->api_client_handle = sapi_handle; + rmp->wrk_index = args.wrk_map_index; + rmp->segment_handle = args.segment_handle; + if (!rv && mp->is_add) + { + /* No segment name and size. This supports only memfds */ + rmp->app_event_queue_address = + fifo_segment_msg_q_offset ((fifo_segment_t *) args.segment, 0); + rmp->n_fds = n_fds; + rmp->fd_flags = fd_flags; + + /* Update app index for socket */ + handle = (app_ns_api_handle_t *) & cs->private_data; + app_wrk = application_get_worker (app, args.wrk_map_index); + handle->aah_app_wrk_index = app_wrk->wrk_index; + } + + clib_socket_sendmsg (cs, &msg, sizeof (msg), fds, n_fds); +} + +static void +sapi_socket_detach (app_namespace_t * app_ns, clib_socket_t * cs) +{ + app_ns_api_handle_t *handle; + app_worker_t *app_wrk; + u32 api_client_handle; + + api_client_handle = appns_sapi_socket_handle (app_ns, cs); + sapi_socket_close_w_handle (api_client_handle); + + /* Cleanup everything because app worker closed socket or crashed */ + handle = (app_ns_api_handle_t *) & cs->private_data; + app_wrk = app_worker_get (handle->aah_app_wrk_index); + + vnet_app_worker_add_del_args_t args = { + .app_index = app_wrk->app_index, + .wrk_map_index = app_wrk->wrk_map_index, + .api_client_index = api_client_handle, + .is_add = 0 + }; + /* Send rpc to main thread for worker barrier */ + vlib_rpc_call_main_thread (vnet_app_worker_add_del, (u8 *) & args, + sizeof (args)); +} + +static clib_error_t * +sapi_sock_read_ready (clib_file_t * cf) +{ + app_ns_api_handle_t *handle = (app_ns_api_handle_t *) & cf->private_data; + vlib_main_t *vm = vlib_get_main (); + app_sapi_msg_t msg = { 0 }; + app_namespace_t *app_ns; + clib_error_t *err = 0; + clib_socket_t *cs; + + app_ns = app_namespace_get (handle->aah_app_ns_index); + cs = appns_sapi_get_socket (app_ns, handle->aah_sock_index); + if (!cs) + goto error; + + err = clib_socket_recvmsg (cs, &msg, sizeof (msg), 0, 0); + if (err) + { + clib_error_free (err); + sapi_socket_detach (app_ns, cs); + goto error; + } + + handle = (app_ns_api_handle_t *) & cs->private_data; + + vlib_worker_thread_barrier_sync (vm); + + switch (msg.type) + { + case APP_SAPI_MSG_TYPE_ATTACH: + session_api_attach_handler (app_ns, cs, &msg.attach); + break; + case APP_SAPI_MSG_TYPE_ADD_DEL_WORKER: + sapi_add_del_worker_handler (app_ns, cs, &msg.worker_add_del); + break; + default: + clib_warning ("app wrk %u unknown message type: %u", + handle->aah_app_wrk_index, msg.type); + break; + } + + vlib_worker_thread_barrier_release (vm); + +error: + return 0; +} + +static clib_error_t * +sapi_sock_write_ready (clib_file_t * cf) +{ + app_ns_api_handle_t *handle = (app_ns_api_handle_t *) & cf->private_data; + clib_warning ("called for app ns %u", handle->aah_app_ns_index); + return 0; +} + +static clib_error_t * +sapi_sock_error (clib_file_t * cf) +{ + app_ns_api_handle_t *handle = (app_ns_api_handle_t *) & cf->private_data; + app_namespace_t *app_ns; + clib_socket_t *cs; + + app_ns = app_namespace_get (handle->aah_app_ns_index); + cs = appns_sapi_get_socket (app_ns, handle->aah_sock_index); + if (!cs) + return 0; + + sapi_socket_detach (app_ns, cs); + return 0; +} + +static clib_error_t * +sapi_sock_accept_ready (clib_file_t * scf) +{ + app_ns_api_handle_t handle = *(app_ns_api_handle_t *) & scf->private_data; + app_namespace_t *app_ns; + clib_file_t cf = { 0 }; + clib_error_t *err = 0; + clib_socket_t *ccs, *scs; + + /* Listener files point to namespace */ + app_ns = app_namespace_get (handle.aah_app_ns_index); + + /* + * Initialize client socket + */ + ccs = appns_sapi_alloc_socket (app_ns); + + /* Grab server socket after client is initialized */ + scs = appns_sapi_get_socket (app_ns, handle.aah_sock_index); + if (!scs) + goto error; + + err = clib_socket_accept (scs, ccs); + if (err) + { + clib_error_report (err); + goto error; + } + + cf.read_function = sapi_sock_read_ready; + cf.write_function = sapi_sock_write_ready; + cf.error_function = sapi_sock_error; + cf.file_descriptor = ccs->fd; + /* File points to app namespace and socket */ + handle.aah_sock_index = appns_sapi_socket_index (app_ns, ccs); + cf.private_data = handle.as_u64; + cf.description = format (0, "app sock conn fd: %d", ccs->fd); + + /* Poll until we get an attach message. Socket points to file and + * application that owns the socket */ + handle.aah_app_wrk_index = APP_INVALID_INDEX; + handle.aah_file_index = clib_file_add (&file_main, &cf); + ccs->private_data = handle.as_u64; + + return err; + +error: + appns_sapi_free_socket (app_ns, ccs); + return err; +} + +int +appns_sapi_add_ns_socket (app_namespace_t * app_ns) +{ + char *subdir = "/app_ns_sockets/"; + app_ns_api_handle_t *handle; + clib_file_t cf = { 0 }; + struct stat file_stat; + clib_error_t *err; + clib_socket_t *cs; + u8 *dir = 0; + int rv = 0; + + vec_add (dir, vlib_unix_get_runtime_dir (), + strlen (vlib_unix_get_runtime_dir ())); + vec_add (dir, (u8 *) subdir, strlen (subdir)); + + err = vlib_unix_recursive_mkdir ((char *) dir); + if (err) + { + clib_error_report (err); + rv = -1; + goto error; + } + + app_ns->sock_name = format (0, "%v%v%c", dir, app_ns->ns_id, 0); + + /* + * Create and initialize socket to listen on + */ + cs = appns_sapi_alloc_socket (app_ns); + cs->config = (char *) app_ns->sock_name; + cs->flags = CLIB_SOCKET_F_IS_SERVER | + CLIB_SOCKET_F_ALLOW_GROUP_WRITE | + CLIB_SOCKET_F_SEQPACKET | CLIB_SOCKET_F_PASSCRED; + + if ((err = clib_socket_init (cs))) + { + clib_error_report (err); + rv = -1; + goto error; + } + + if (stat ((char *) app_ns->sock_name, &file_stat) == -1) + { + rv = -1; + goto error; + } + + /* + * Start polling it + */ + cf.read_function = sapi_sock_accept_ready; + cf.file_descriptor = cs->fd; + /* File points to namespace */ + handle = (app_ns_api_handle_t *) & cf.private_data; + handle->aah_app_ns_index = app_namespace_index (app_ns); + handle->aah_sock_index = appns_sapi_socket_index (app_ns, cs); + cf.description = format (0, "app sock listener: %s", app_ns->sock_name); + + /* Socket points to clib file index */ + handle = (app_ns_api_handle_t *) & cs->private_data; + handle->aah_file_index = clib_file_add (&file_main, &cf); + handle->aah_app_wrk_index = APP_INVALID_INDEX; + +error: + vec_free (dir); + return rv; +} + /* * fd.io coding-style-patch-verification: ON *