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authorDave Barach <dave@barachs.net>2017-02-28 15:15:56 -0500
committerDamjan Marion <dmarion.lists@gmail.com>2017-03-01 20:25:48 +0000
commit68b0fb0c620c7451ef1a6380c43c39de6614db51 (patch)
treef4188fa09723152f3ebfcebbbe4cacad903e0cf1 /src/vnet/session/application.h
parentf869028740aaebeb0375077d4d84fa07a17fff1a (diff)
VPP-598: tcp stack initial commit
Change-Id: I49e5ce0aae6e4ff634024387ceaf7dbc432a0351 Signed-off-by: Dave Barach <dave@barachs.net> Signed-off-by: Florin Coras <fcoras@cisco.com>
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1 files changed, 120 insertions, 0 deletions
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+/*
+ * Copyright (c) 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.
+ */
+
+#ifndef SRC_VNET_SESSION_APPLICATION_H_
+#define SRC_VNET_SESSION_APPLICATION_H_
+
+#include <vnet/vnet.h>
+#include <vnet/session/session.h>
+
+typedef enum
+{
+ APP_SERVER,
+ APP_CLIENT
+} application_type_t;
+
+typedef struct _stream_session_cb_vft
+{
+ /** Notify server of new segment */
+ int (*add_segment_callback) (u32 api_client_index, const u8 * seg_name,
+ u32 seg_size);
+
+ /** Notify server of newly accepted session */
+ int (*session_accept_callback) (stream_session_t * new_session);
+
+ /* Connection request callback */
+ int (*session_connected_callback) (u32 api_client_index,
+ stream_session_t * s, u8 code);
+
+ /** Notify app that session is closing */
+ void (*session_disconnect_callback) (stream_session_t * s);
+
+ /** Notify app that session was reset */
+ void (*session_reset_callback) (stream_session_t * s);
+
+ /* Direct RX callback, for built-in servers */
+ int (*builtin_server_rx_callback) (stream_session_t * session);
+
+ /* Redirect connection to local server */
+ int (*redirect_connect_callback) (u32 api_client_index, void *mp);
+} session_cb_vft_t;
+
+typedef struct _application
+{
+ /** Index in server pool */
+ u32 index;
+
+ /** Flags */
+ u32 flags;
+
+ /** Binary API connection index, ~0 if internal */
+ u32 api_client_index;
+
+ /* */
+ u32 api_context;
+
+ /** Application listens for events on this svm queue */
+ unix_shared_memory_queue_t *event_queue;
+
+ /** Stream session type */
+ u8 session_type;
+
+ /* Stream server mode: accept or connect */
+ u8 mode;
+
+ u32 session_manager_index;
+
+ /*
+ * Bind/Listen specific
+ */
+
+ /** Accept cookie, for multiple session flavors ($$$ maybe) */
+ u32 accept_cookie;
+
+ /** Index of the listen session or connect session */
+ u32 session_index;
+
+ /** Session thread index for client connect sessions */
+ u32 thread_index;
+
+ /*
+ * Callbacks: shoulder-taps for the server/client
+ */
+ session_cb_vft_t cb_fns;
+} application_t;
+
+application_t *application_new (application_type_t type, session_type_t sst,
+ u32 api_client_index, u32 flags,
+ session_cb_vft_t * cb_fns);
+void application_del (application_t * app);
+application_t *application_get (u32 index);
+application_t *application_lookup (u32 api_client_index);
+u32 application_get_index (application_t * app);
+
+int
+application_server_init (application_t * server, u32 segment_size,
+ u32 add_segment_size, u32 rx_fifo_size,
+ u32 tx_fifo_size, u8 ** segment_name);
+int application_api_queue_is_full (application_t * app);
+
+#endif /* SRC_VNET_SESSION_APPLICATION_H_ */
+
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */