1 files changed, 106 insertions, 0 deletions
diff --git a/src/vnet/fib/mpls_fib.h b/src/vnet/fib/mpls_fib.h
new file mode 100644
index 00000000000..93ae4623016
--- /dev/null
+++ b/src/vnet/fib/mpls_fib.h
@@ -0,0 +1,106 @@
+/*
+ * mpls_fib.h: The Label/MPLS FIB
+ *
+ * Copyright (c) 2012 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 __MPLS_FIB_TABLE_H__
+#define __MPLS_FIB_TABLE_H__
+
+#include <vnet/vnet.h>
+#include <vnet/mpls/mpls.h>
+#include <vnet/fib/fib_types.h>
+#include <vnet/dpo/dpo.h>
+#include <vnet/mpls/mpls.h>
+#include <vnet/fib/fib_table.h>
+
+static inline mpls_fib_t*
+mpls_fib_get (fib_node_index_t index)
+{
+    if (!pool_is_free_index(mpls_main.fibs, index))
+	return (&(pool_elt_at_index(mpls_main.fibs, index)->mpls));
+    return (NULL);
+}
+
+extern u32 mpls_fib_table_find_or_create_and_lock(u32 table_id);
+extern u32 mpls_fib_table_create_and_lock(void);
+// extern mpls_fib_t * mpls_fib_find(u32 table_id);
+extern u32 mpls_fib_index_from_table_id(u32 table_id);
+
+extern u8 *format_mpls_fib_table_name(u8 * s, va_list * args);
+
+extern fib_node_index_t mpls_fib_table_entry_add_from_ip_fib_entry (
+    u32 table_id,
+    mpls_label_t label,
+    mpls_eos_bit_t eos,
+    fib_node_index_t fib_entry_index);
+
+
+extern fib_node_index_t mpls_fib_table_lookup(const mpls_fib_t *mf,
+					      mpls_label_t label,
+					      mpls_eos_bit_t eos);
+
+extern void mpls_fib_table_entry_remove(mpls_fib_t *mf,
+					mpls_label_t label,
+					mpls_eos_bit_t eos);
+extern void mpls_fib_table_entry_insert(mpls_fib_t *mf,
+					mpls_label_t label,
+					mpls_eos_bit_t eos,
+					fib_node_index_t fei);
+extern void mpls_fib_table_destroy(mpls_fib_t *mf);
+
+
+
+extern void mpls_fib_forwarding_table_update(mpls_fib_t *mf,
+					     mpls_label_t label,
+					     mpls_eos_bit_t eos,
+					     const dpo_id_t *dpo);
+extern void mpls_fib_forwarding_table_reset(mpls_fib_t *mf,
+					    mpls_label_t label,
+					    mpls_eos_bit_t eos);
+
+/**
+ * @brief
+ *  Lookup a label and EOS bit in the MPLS_FIB table to retrieve the
+ *  load-balance index to be used for packet forwarding.
+ */
+static inline index_t
+mpls_fib_table_forwarding_lookup (u32 mpls_fib_index,
+				  const mpls_unicast_header_t *hdr)
+{
+    mpls_label_t label;
+    mpls_fib_t *mf;
+    u32 key;
+
+    label = clib_net_to_host_u32(hdr->label_exp_s_ttl);
+    key = (vnet_mpls_uc_get_label(label) << 1) | vnet_mpls_uc_get_s(label);
+
+    mf = mpls_fib_get(mpls_fib_index);
+
+    return (mf->mf_lbs[key]);
+}
+
+static inline u32
+mpls_fib_table_get_index_for_sw_if_index (u32 sw_if_index)
+{
+    mpls_main_t *mm = &mpls_main;
+
+    ASSERT(vec_len(mm->fib_index_by_sw_if_index) > sw_if_index);
+
+    return (mm->fib_index_by_sw_if_index[sw_if_index]);
+}
+
+extern flow_hash_config_t mpls_fib_table_get_flow_hash_config(u32 fib_index);
+
+#endif