/* * Copyright (c) 2015-2017 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 #include #include #include #include builtin_proxy_main_t builtin_proxy_main; static void delete_proxy_session (stream_session_t * s, int is_active_open) { builtin_proxy_main_t *bpm = &builtin_proxy_main; proxy_session_t *ps = 0; vnet_disconnect_args_t _a, *a = &_a; stream_session_t *active_open_session = 0; stream_session_t *server_session = 0; uword *p; u64 handle; handle = stream_session_handle (s); clib_spinlock_lock_if_init (&bpm->sessions_lock); if (is_active_open) { active_open_session = s; p = hash_get (bpm->proxy_session_by_active_open_handle, handle); if (p == 0) { clib_warning ("proxy session for %s handle %lld (%llx) AWOL", is_active_open ? "active open" : "server", handle, handle); } else { ps = pool_elt_at_index (bpm->sessions, p[0]); if (ps->vpp_server_handle != ~0) server_session = stream_session_get_from_handle (ps->vpp_server_handle); else server_session = 0; } } else { server_session = s; p = hash_get (bpm->proxy_session_by_server_handle, handle); if (p == 0) { clib_warning ("proxy session for %s handle %lld (%llx) AWOL", is_active_open ? "active open" : "server", handle, handle); } else { ps = pool_elt_at_index (bpm->sessions, p[0]); if (ps->vpp_server_handle != ~0) active_open_session = stream_session_get_from_handle (ps->vpp_server_handle); else active_open_session = 0; } } if (ps) { if (CLIB_DEBUG > 0) memset (ps, 0xFE, sizeof (*ps)); pool_put (bpm->sessions, ps); } clib_spinlock_unlock_if_init (&bpm->sessions_lock); if (active_open_session) { a->handle = stream_session_handle (active_open_session); a->app_index = bpm->active_open_app_index; hash_unset (bpm->proxy_session_by_active_open_handle, stream_session_handle (active_open_session)); vnet_disconnect_session (a); } if (server_session) { a->handle = stream_session_handle (server_session); a->app_index = bpm->server_app_index; hash_unset (bpm->proxy_session_by_server_handle, stream_session_handle (server_session)); vnet_disconnect_session (a); } } static int server_accept_callback (stream_session_t * s) { builtin_proxy_main_t *bpm = &builtin_proxy_main; s->session_state = SESSION_STATE_READY; clib_spinlock_lock_if_init (&bpm->sessions_lock); return 0; } static void server_disconnect_callback (stream_session_t * s) { delete_proxy_session (s, 0 /* is_active_open */ ); } static void server_reset_callback (stream_session_t * s) { clib_warning ("Reset session %U", format_stream_session, s, 2); delete_proxy_session (s, 0 /* is_active_open */ ); } static int server_connected_callback (u32 app_index, u32 api_context, stream_session_t * s, u8 is_fail) { clib_warning ("called..."); return -1; } static int server_add_segment_callback (u32 client_index, const u8 * seg_name, u32 seg_size) { clib_warning ("called..."); return -1; } static int server_redirect_connect_callback (u32 client_index, void *mp) { clib_warning ("called..."); return -1; } static int server_rx_callback (stream_session_t * s) { u32 max_dequeue; int actual_transfer __attribute__ ((unused)); svm_fifo_t *tx_fifo, *rx_fifo; builtin_proxy_main_t *bpm = &builtin_proxy_main; u32 thread_index = vlib_get_thread_index (); vnet_connect_args_t _a, *a = &_a; proxy_session_t *ps; int proxy_index; uword *p; svm_fifo_t *active_open_tx_fifo; session_fifo_event_t evt; ASSERT (s->thread_index == thread_index); clib_spinlock_lock_if_init (&bpm->sessions_lock); p = hash_get (bpm->proxy_session_by_server_handle, stream_session_handle (s)); if (PREDICT_TRUE (p != 0)) { clib_spinlock_unlock_if_init (&bpm->sessions_lock); active_open_tx_fifo = s->server_rx_fifo; /* * Send event for active open tx fifo */ if (svm_fifo_set_event (active_open_tx_fifo)) { evt.fifo = active_open_tx_fifo; evt.event_type = FIFO_EVENT_APP_TX; if (unix_shared_memory_queue_add (bpm->active_open_event_queue[thread_index], (u8 *) & evt, 0 /* do wait for mutex */ )) clib_warning ("failed to enqueue tx evt"); } } else { rx_fifo = s->server_rx_fifo; tx_fifo = s->server_tx_fifo; ASSERT (rx_fifo->master_thread_index == thread_index); ASSERT (tx_fifo->master_thread_index == thread_index); max_dequeue = svm_fifo_max_dequeue (s->server_rx_fifo); if (PREDICT_FALSE (max_dequeue == 0)) return 0; actual_transfer = svm_fifo_peek (rx_fifo, 0 /* relative_offset */ , max_dequeue, bpm->rx_buf[thread_index]); /* $$$ your message in this space: parse url, etc. */ memset (a, 0, sizeof (*a)); clib_spinlock_lock_if_init (&bpm->sessions_lock); pool_get (bpm->sessions, ps); memset (ps, 0, sizeof (*ps)); ps->server_rx_fifo = rx_fifo; ps->server_tx_fifo = tx_fifo; ps->vpp_server_handle = stream_session_handle (s); proxy_index = ps - bpm->sessions; hash_set (bpm->proxy_session_by_server_handle, ps->vpp_server_handle, proxy_index); clib_spinlock_unlock_if_init (&bpm->sessions_lock); a->uri = "tcp://6.0.2.2/23"; a->api_context = proxy_index; a->app_index = bpm->active_open_app_index; a->mp = 0; vnet_connect_uri (a); } return 0; } static session_cb_vft_t bui
/*
 * Copyright (c) 2015 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