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authorFlorin Coras <fcoras@cisco.com>2017-07-16 17:12:15 -0700
committerDave Barach <openvpp@barachs.net>2017-07-25 11:17:20 +0000
commit04e5344a358a9ad42d896486d2d226149fd326f4 (patch)
tree74727757d79e1e711f3a8c67016ba2b04eea6c91 /src/vnet/session/transport_interface.c
parentf8d84901e4f82c54545030a881da9aded659baf9 (diff)
Cleanup/refactor session layer code
Change-Id: Ica99e8cb919fca6b069c37c969d60e8ccc2c6bf9 Signed-off-by: Florin Coras <fcoras@cisco.com>
Diffstat (limited to 'src/vnet/session/transport_interface.c')
-rw-r--r--src/vnet/session/transport_interface.c106
1 files changed, 106 insertions, 0 deletions
diff --git a/src/vnet/session/transport_interface.c b/src/vnet/session/transport_interface.c
new file mode 100644
index 00000000..eb12aa69
--- /dev/null
+++ b/src/vnet/session/transport_interface.c
@@ -0,0 +1,106 @@
+/*
+ * 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.
+ */
+
+#include <vnet/session/transport_interface.h>
+#include <vnet/session/session.h>
+
+/**
+ * Per-type vector of transport protocol virtual function tables
+ */
+transport_proto_vft_t *tp_vfts;
+
+u32
+transport_endpoint_lookup (transport_endpoint_table_t * ht,
+ ip46_address_t * ip, u16 port)
+{
+ clib_bihash_kv_24_8_t kv;
+ int rv;
+
+ kv.key[0] = ip->as_u64[0];
+ kv.key[1] = ip->as_u64[1];
+ kv.key[2] = port;
+
+ rv = clib_bihash_search_inline_24_8 (ht, &kv);
+ if (rv == 0)
+ return kv.value;
+
+ return TRANSPORT_ENDPOINT_INVALID_INDEX;
+}
+
+void
+transport_endpoint_table_add (transport_endpoint_table_t * ht,
+ transport_endpoint_t * te, u32 value)
+{
+ clib_bihash_kv_24_8_t kv;
+
+ kv.key[0] = te->ip.as_u64[0];
+ kv.key[1] = te->ip.as_u64[1];
+ kv.key[2] = te->port;
+ kv.value = value;
+
+ clib_bihash_add_del_24_8 (ht, &kv, 1);
+}
+
+void
+transport_endpoint_table_del (transport_endpoint_table_t * ht,
+ transport_endpoint_t * te)
+{
+ clib_bihash_kv_24_8_t kv;
+
+ kv.key[0] = te->ip.as_u64[0];
+ kv.key[1] = te->ip.as_u64[1];
+ kv.key[2] = te->port;
+
+ clib_bihash_add_del_24_8 (ht, &kv, 0);
+}
+
+/**
+ * Register transport virtual function table.
+ *
+ * @param type - session type (not protocol type)
+ * @param vft - virtual function table
+ */
+void
+session_register_transport (u8 session_type,
+ const transport_proto_vft_t * vft)
+{
+ vec_validate (tp_vfts, session_type);
+ tp_vfts[session_type] = *vft;
+
+ /* If an offset function is provided, then peek instead of dequeue */
+ session_manager_set_transport_rx_fn (session_type,
+ vft->tx_fifo_offset != 0);
+}
+
+/**
+ * Get transport virtual function table
+ *
+ * @param type - session type (not protocol type)
+ */
+transport_proto_vft_t *
+session_get_transport_vft (u8 session_type)
+{
+ if (session_type >= vec_len (tp_vfts))
+ return 0;
+ return &tp_vfts[session_type];
+}
+
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */