Dump routes (VPP-500)

Change-Id: I86e7382395a8b6471a0deaf57163718d41b71b83
Signed-off-by: Steven <sluong@cisco.com>

5 files changed, 67 insertions, 2 deletions

diff --git a/vnet/vnet/fib/fib_entry.c b/vnet/vnet/fib/fib_entry.c
index 4080b7622d1..da2656e35aa 100644
--- a/vnet/vnet/fib/fib_entry.c
+++ b/vnet/vnet/fib/fib_entry.c
@@ -1479,6 +1479,16 @@ fib_entry_module_init (void)
 }
 
 void
+fib_entry_encode (fib_node_index_t fib_entry_index,
+		  fib_route_path_encode_t **api_rpaths)
+{
+    fib_entry_t *fib_entry;
+
+    fib_entry = fib_entry_get(fib_entry_index);
+    fib_path_list_walk(fib_entry->fe_parent, fib_path_encode, api_rpaths);
+}
+
+void
 fib_entry_get_prefix (fib_node_index_t fib_entry_index,
 		      fib_prefix_t *pfx)
 {
diff --git a/vnet/vnet/fib/fib_entry.h b/vnet/vnet/fib/fib_entry.h
index 39b2083ea9a..d62a94043b3 100644
--- a/vnet/vnet/fib/fib_entry.h
+++ b/vnet/vnet/fib/fib_entry.h
@@ -497,6 +497,8 @@ extern u32 fib_entry_get_resolving_interface_for_source(
     fib_node_index_t fib_entry_index,
     fib_source_t source);
 
+extern void fib_entry_encode(fib_node_index_t fib_entry_index,
+			     fib_route_path_encode_t **api_rpaths);
 extern void fib_entry_get_prefix(fib_node_index_t fib_entry_index,
 				 fib_prefix_t *pfx);
 extern u32 fib_entry_get_fib_index(fib_node_index_t fib_entry_index);
diff --git a/vnet/vnet/fib/fib_path.c b/vnet/vnet/fib/fib_path.c
index 9fe653dc8d0..98669317b92 100644
--- a/vnet/vnet/fib/fib_path.c
+++ b/vnet/vnet/fib/fib_path.c
@@ -1818,6 +1818,49 @@ fib_path_is_looped (fib_node_index_t path_index)
     return (path->fp_oper_flags & FIB_PATH_OPER_FLAG_RECURSIVE_LOOP);
 }
 
+int
+fib_path_encode (fib_node_index_t path_list_index,
+		 fib_node_index_t path_index,
+                 void *ctx)
+{
+    fib_route_path_encode_t **api_rpaths = ctx;
+    fib_route_path_encode_t *api_rpath;
+    fib_path_t *path;
+
+    path = fib_path_get(path_index);
+    if (!path)
+      return (0);
+    vec_add2(*api_rpaths, api_rpath, 1);
+    api_rpath->rpath.frp_weight = path->fp_weight;
+    api_rpath->rpath.frp_proto = path->fp_nh_proto;
+    api_rpath->rpath.frp_sw_if_index = ~0;
+    api_rpath->dpo = path->exclusive.fp_ex_dpo;
+    switch (path->fp_type)
+      {
+      case FIB_PATH_TYPE_RECEIVE:
+        api_rpath->rpath.frp_addr = path->receive.fp_addr;
+        api_rpath->rpath.frp_sw_if_index = path->receive.fp_interface;
+        break;
+      case FIB_PATH_TYPE_ATTACHED:
+        api_rpath->rpath.frp_sw_if_index = path->attached.fp_interface;
+        break;
+      case FIB_PATH_TYPE_ATTACHED_NEXT_HOP:
+        api_rpath->rpath.frp_sw_if_index = path->attached_next_hop.fp_interface;
+        api_rpath->rpath.frp_addr = path->attached_next_hop.fp_nh;
+        break;
+      case FIB_PATH_TYPE_SPECIAL:
+        break;
+      case FIB_PATH_TYPE_DEAG:
+        break;
+      case FIB_PATH_TYPE_RECURSIVE:
+        api_rpath->rpath.frp_addr = path->recursive.fp_nh;
+        break;
+      default:
+        break;
+      }
+    return (1);
+}
+
 void
 fib_path_module_init (void)
 {
diff --git a/vnet/vnet/fib/fib_path.h b/vnet/vnet/fib/fib_path.h
index 2c141a4150d..4151c578aed 100644
--- a/vnet/vnet/fib/fib_path.h
+++ b/vnet/vnet/fib/fib_path.h
@@ -150,7 +150,8 @@ extern u32 fib_path_get_resolving_interface(fib_node_index_t fib_entry_index);
 extern int fib_path_get_weight(fib_node_index_t path_index);
 
 extern void fib_path_module_init(void);
-
-extern void fib_path_module_init(void);
+extern int fib_path_encode(fib_node_index_t path_list_index,
+                           fib_node_index_t path_index,
+			   void *ctx);
 
 #endif
diff --git a/vnet/vnet/fib/fib_types.h b/vnet/vnet/fib/fib_types.h
index 1e70a2a98d8..83123a5127a 100644
--- a/vnet/vnet/fib/fib_types.h
+++ b/vnet/vnet/fib/fib_types.h
@@ -316,4 +316,13 @@ typedef struct fib_route_path_t_ {
     mpls_label_t frp_label;
 } fib_route_path_t;
 
+/**
+ * @brief 
+ * A representation of a fib path for fib_path_encode to convey the information to the caller
+ */
+typedef struct fib_route_path_encode_t_ {
+    fib_route_path_t rpath;
+    dpo_id_t dpo;
+} fib_route_path_encode_t;
+
 #endif