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-rw-r--r--src/vnet/fib/fib_entry_delegate.c149
1 files changed, 149 insertions, 0 deletions
diff --git a/src/vnet/fib/fib_entry_delegate.c b/src/vnet/fib/fib_entry_delegate.c
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index 00000000000..a0d45f970b3
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+++ b/src/vnet/fib/fib_entry_delegate.c
@@ -0,0 +1,149 @@
+/*
+ * Copyright (c) 2016 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/fib/fib_entry_delegate.h>
+#include <vnet/fib/fib_entry.h>
+
+static fib_entry_delegate_t *
+fib_entry_delegate_find_i (const fib_entry_t *fib_entry,
+ fib_entry_delegate_type_t type,
+ u32 *index)
+{
+ fib_entry_delegate_t *delegate;
+ int ii;
+
+ ii = 0;
+ vec_foreach(delegate, fib_entry->fe_delegates)
+ {
+ if (delegate->fd_type == type)
+ {
+ if (NULL != index)
+ *index = ii;
+
+ return (delegate);
+ }
+ else
+ {
+ ii++;
+ }
+ }
+
+ return (NULL);
+}
+
+fib_entry_delegate_t *
+fib_entry_delegate_get (const fib_entry_t *fib_entry,
+ fib_entry_delegate_type_t type)
+{
+ return (fib_entry_delegate_find_i(fib_entry, type, NULL));
+}
+
+void
+fib_entry_delegate_remove (fib_entry_t *fib_entry,
+ fib_entry_delegate_type_t type)
+{
+ fib_entry_delegate_t *fed;
+ u32 index = ~0;
+
+ fed = fib_entry_delegate_find_i(fib_entry, type, &index);
+
+ ASSERT(NULL != fed);
+
+ vec_del1(fib_entry->fe_delegates, index);
+}
+
+static int
+fib_entry_delegate_cmp_for_sort (void * v1,
+ void * v2)
+{
+ fib_entry_delegate_t *delegate1 = v1, *delegate2 = v2;
+
+ return (delegate1->fd_type - delegate2->fd_type);
+}
+
+static void
+fib_entry_delegate_init (fib_entry_t *fib_entry,
+ fib_entry_delegate_type_t type)
+
+{
+ fib_entry_delegate_t delegate = {
+ .fd_entry_index = fib_entry_get_index(fib_entry),
+ .fd_type = type,
+ };
+
+ vec_add1(fib_entry->fe_delegates, delegate);
+ vec_sort_with_function(fib_entry->fe_delegates,
+ fib_entry_delegate_cmp_for_sort);
+}
+
+fib_entry_delegate_t *
+fib_entry_delegate_find_or_add (fib_entry_t *fib_entry,
+ fib_entry_delegate_type_t fdt)
+{
+ fib_entry_delegate_t *delegate;
+
+ delegate = fib_entry_delegate_get(fib_entry, fdt);
+
+ if (NULL == delegate)
+ {
+ fib_entry_delegate_init(fib_entry, fdt);
+ }
+
+ return (fib_entry_delegate_get(fib_entry, fdt));
+}
+
+fib_entry_delegate_type_t
+fib_entry_chain_type_to_delegate_type (fib_forward_chain_type_t fct)
+{
+ switch (fct)
+ {
+ case FIB_FORW_CHAIN_TYPE_UNICAST_IP4:
+ return (FIB_ENTRY_DELEGATE_CHAIN_UNICAST_IP4);
+ case FIB_FORW_CHAIN_TYPE_UNICAST_IP6:
+ return (FIB_ENTRY_DELEGATE_CHAIN_UNICAST_IP6);
+ case FIB_FORW_CHAIN_TYPE_MPLS_EOS:
+ return (FIB_ENTRY_DELEGATE_CHAIN_MPLS_EOS);
+ case FIB_FORW_CHAIN_TYPE_MPLS_NON_EOS:
+ return (FIB_ENTRY_DELEGATE_CHAIN_MPLS_NON_EOS);
+ case FIB_FORW_CHAIN_TYPE_ETHERNET:
+ return (FIB_ENTRY_DELEGATE_CHAIN_ETHERNET);
+ }
+ ASSERT(0);
+ return (FIB_ENTRY_DELEGATE_CHAIN_UNICAST_IP4);
+}
+
+fib_forward_chain_type_t
+fib_entry_delegate_type_to_chain_type (fib_entry_delegate_type_t fdt)
+{
+ switch (fdt)
+ {
+ case FIB_ENTRY_DELEGATE_CHAIN_UNICAST_IP4:
+ return (FIB_FORW_CHAIN_TYPE_UNICAST_IP4);
+ case FIB_ENTRY_DELEGATE_CHAIN_UNICAST_IP6:
+ return (FIB_FORW_CHAIN_TYPE_UNICAST_IP6);
+ case FIB_ENTRY_DELEGATE_CHAIN_MPLS_EOS:
+ return (FIB_FORW_CHAIN_TYPE_MPLS_EOS);
+ case FIB_ENTRY_DELEGATE_CHAIN_MPLS_NON_EOS:
+ return (FIB_FORW_CHAIN_TYPE_MPLS_NON_EOS);
+ case FIB_ENTRY_DELEGATE_CHAIN_ETHERNET:
+ return (FIB_FORW_CHAIN_TYPE_ETHERNET);
+ case FIB_ENTRY_DELEGATE_COVERED:
+ case FIB_ENTRY_DELEGATE_ATTACHED_IMPORT:
+ case FIB_ENTRY_DELEGATE_ATTACHED_EXPORT:
+ break;
+ }
+ ASSERT(0);
+ return (FIB_FORW_CHAIN_TYPE_UNICAST_IP4);
+}