FIB Interpose Source

[vpp.git] / src / vnet / dpo / dpo.h

diff --git a/src/vnet/dpo/dpo.h b/src/vnet/dpo/dpo.h
index 3290a5d..0eeca67 100644 (file)
--- a/src/vnet/dpo/dpo.h
+++ b/src/vnet/dpo/dpo.h
@@ -111,8 +111,8 @@ typedef enum dpo_type_t_ {
     DPO_LOOKUP,
     DPO_LISP_CP,
     DPO_CLASSIFY,
-    DPO_MPLS_LABEL,
-    DPO_MPLS_DISPOSITION,
+    DPO_MPLS_DISPOSITION_PIPE,
+    DPO_MPLS_DISPOSITION_UNIFORM,
     DPO_MFIB_ENTRY,
     DPO_INTERFACE_RX,
     DPO_INTERFACE_TX,
@@ -123,6 +123,7 @@ typedef enum dpo_type_t_ {
     DPO_BIER_IMP,
     DPO_BIER_DISP_TABLE,
     DPO_BIER_DISP_ENTRY,
+    DPO_IP6_LL,
     DPO_LAST,
 } __attribute__((packed)) dpo_type_t;
 
@@ -145,8 +146,8 @@ typedef enum dpo_type_t_ {
     [DPO_REPLICATE] = "dpo-replicate", \
     [DPO_LISP_CP] = "dpo-lisp-cp",     \
     [DPO_CLASSIFY] = "dpo-classify",   \
-    [DPO_MPLS_LABEL] = "dpo-mpls-label", \
-    [DPO_MPLS_DISPOSITION] = "dpo-mpls-diposition", \
+    [DPO_MPLS_DISPOSITION_PIPE] = "dpo-mpls-diposition-pipe", \
+    [DPO_MPLS_DISPOSITION_UNIFORM] = "dpo-mpls-diposition-uniform", \
     [DPO_MFIB_ENTRY] = "dpo-mfib-entry", \
     [DPO_INTERFACE_RX] = "dpo-interface-rx",   \
     [DPO_INTERFACE_TX] = "dpo-interface-tx",   \
@@ -157,6 +158,7 @@ typedef enum dpo_type_t_ {
     [DPO_BIER_IMP] = "bier-imposition",        \
     [DPO_BIER_DISP_ENTRY] = "bier-disp-entry", \
     [DPO_BIER_DISP_TABLE] = "bier-disp-table", \
+    [DPO_IP6_LL] = "ip6-link-local",   \
 }
 
 /**
@@ -222,6 +224,14 @@ extern void dpo_lock(dpo_id_t *dpo);
  */
 extern void dpo_unlock(dpo_id_t *dpo);
 
+/**
+ * @brief
+ *  Make an interpose DPO from an original
+ */
+extern void dpo_mk_interpose(const dpo_id_t *original,
+                             const dpo_id_t *parent,
+                             dpo_id_t *clone);
+
 /**
  * @brief Set/create a DPO ID
  * The DPO will be locked.
@@ -371,6 +381,18 @@ typedef u32* (*dpo_get_next_node_t)(const dpo_id_t *dpo);
  */
 typedef u32 (*dpo_get_urpf_t)(const dpo_id_t *dpo);
 
+/**
+ * @brief Called during FIB interposition when the originally
+ * registered DPO is used to 'clone' an instance for interposition
+ * at a particular location in the FIB graph.
+ * The parent is the next DPO in the chain that the clone will
+ * be used instead of. The clone may then choose to stack itself
+ * on the parent.
+ */
+typedef void (*dpo_mk_interpose_t)(const dpo_id_t *original,
+                                   const dpo_id_t *parent,
+                                   dpo_id_t *clone);
+
 /**
  * @brief A virtual function table regisitered for a DPO type
  */
@@ -403,6 +425,10 @@ typedef struct dpo_vft_t_
      * Get uRPF interface
      */
     dpo_get_urpf_t dv_get_urpf;
+    /**
+     * Signal on an interposed child that the parent has changed
+     */
+    dpo_mk_interpose_t dv_mk_interpose;
 } dpo_vft_t;
 
 
@@ -444,4 +470,29 @@ extern void dpo_register(dpo_type_t type,
 extern dpo_type_t dpo_register_new_type(const dpo_vft_t *vft,
                                        const char * const * const * nodes);
 
+/**
+ * @brief Return already stacked up next node index for a given
+ *        child_type/child_proto and parent_type/patent_proto.
+ *        The VLIB graph arc used is taken from the parent and child types
+ *        passed.
+ *
+ * @param child_type
+ *  Child DPO type.
+ *
+ * @param child_proto
+ *  Child DPO proto
+ *
+ * @param parent_type
+ *  Parent DPO type.
+ *
+ * @param parent_proto
+ *  Parent DPO proto
+ *
+ * @return The VLIB Graph node index
+ */
+extern u32
+dpo_get_next_node_by_type_and_proto (dpo_type_t   child_type,
+                                     dpo_proto_t  child_proto,
+                                     dpo_type_t   parent_type,
+                                     dpo_proto_t  parent_proto);
 #endif