FIB path dump: fix next-hop-table ID for recursive routes

[vpp.git] / src / vnet / fib / fib_path.c

diff --git a/src/vnet/fib/fib_path.c b/src/vnet/fib/fib_path.c
index fddb8ec..2912c6a 100644 (file)
--- a/src/vnet/fib/fib_path.c
+++ b/src/vnet/fib/fib_path.c
@@ -23,7 +23,7 @@
 #include <vnet/dpo/lookup_dpo.h>
 #include <vnet/dpo/interface_rx_dpo.h>
 #include <vnet/dpo/mpls_disposition.h>
-#include <vnet/dpo/l2_bridge_dpo.h>
+#include <vnet/dpo/dvr_dpo.h>
 #include <vnet/dpo/drop_dpo.h>
 
 #include <vnet/adj/adj.h>
@@ -80,7 +80,7 @@ typedef enum fib_path_type_t_ {
      */
     FIB_PATH_TYPE_INTF_RX,
     /**
-     * interface receive.
+     * Path resolves via a UDP encap object.
      */
     FIB_PATH_TYPE_UDP_ENCAP,
     /**
@@ -99,6 +99,10 @@ typedef enum fib_path_type_t_ {
      * bier-fmask. it's via a BIER f-mask.
      */
     FIB_PATH_TYPE_BIER_FMASK,
+    /**
+     * via a DVR.
+     */
+    FIB_PATH_TYPE_DVR,
     /**
      * Marker. Add new types before this one, then update it.
      */
@@ -123,6 +127,7 @@ typedef enum fib_path_type_t_ {
     [FIB_PATH_TYPE_BIER_IMP]          = "bier-imp",            \
     [FIB_PATH_TYPE_BIER_TABLE]        = "bier-table",          \
     [FIB_PATH_TYPE_BIER_FMASK]        = "bier-fmask",          \
+    [FIB_PATH_TYPE_DVR]               = "dvr",                 \
 }
 
 #define FOR_EACH_FIB_PATH_TYPE(_item)           \
@@ -345,6 +350,12 @@ typedef struct fib_path_t_ {
             */
            u32 fp_udp_encap_id;
        } udp_encap;
+       struct {
+           /**
+            * The interface
+            */
+           u32 fp_interface;
+       } dvr;
     };
     STRUCT_MARK(path_hash_end);
 
@@ -574,6 +585,14 @@ format_fib_path (u8 * s, va_list * args)
         s = format (s, "via %U", format_bier_imp,
                     path->bier_imp.fp_bier_imp, 0, BIER_SHOW_BRIEF);
         break;
+    case FIB_PATH_TYPE_DVR:
+        s = format (s, " %U",
+                    format_vnet_sw_interface_name,
+                    vnm,
+                    vnet_get_sw_interface(
+                        vnm,
+                        path->dvr.fp_interface));
+        break;
     case FIB_PATH_TYPE_RECEIVE:
     case FIB_PATH_TYPE_INTF_RX:
     case FIB_PATH_TYPE_SPECIAL:
@@ -688,6 +707,7 @@ fib_path_attached_get_adj (fib_path_t *path,
     else
     {
         return (adj_glean_add_or_lock(dpo_proto_to_fib(path->fp_nh_proto),
+                                      link,
                                       path->attached.fp_interface,
                                       NULL));
     }
@@ -881,12 +901,9 @@ fib_path_unresolve (fib_path_t *path)
         adj_unlock(path->fp_dpo.dpoi_index);
         break;
     case FIB_PATH_TYPE_ATTACHED:
-        if (DPO_PROTO_ETHERNET != path->fp_nh_proto)
-        {
-            adj_child_remove(path->fp_dpo.dpoi_index,
-                             path->fp_sibling);
-            adj_unlock(path->fp_dpo.dpoi_index);
-        }
+        adj_child_remove(path->fp_dpo.dpoi_index,
+                         path->fp_sibling);
+        adj_unlock(path->fp_dpo.dpoi_index);
         break;
     case FIB_PATH_TYPE_UDP_ENCAP:
        udp_encap_unlock_w_index(path->fp_dpo.dpoi_index);
@@ -898,6 +915,7 @@ fib_path_unresolve (fib_path_t *path)
     case FIB_PATH_TYPE_RECEIVE:
     case FIB_PATH_TYPE_INTF_RX:
     case FIB_PATH_TYPE_DEAG:
+    case FIB_PATH_TYPE_DVR:
         /*
          * these hold only the path's DPO, which is reset below.
          */
@@ -1101,6 +1119,7 @@ FIXME comment
         }
        break;
     case FIB_PATH_TYPE_ATTACHED:
+    case FIB_PATH_TYPE_DVR:
        /*
         * FIXME; this could schedule a lower priority walk, since attached
         * routes are not usually in ECMP configurations so the backwalk to
@@ -1299,6 +1318,11 @@ fib_path_create (fib_node_index_t pl_index,
        path->fp_type = FIB_PATH_TYPE_DEAG;
        path->deag.fp_tbl_id = rpath->frp_fib_index;
     }
+    else if (rpath->frp_flags & FIB_ROUTE_PATH_DVR)
+    {
+       path->fp_type = FIB_PATH_TYPE_DVR;
+       path->dvr.fp_interface = rpath->frp_sw_if_index;
+    }
     else if (~0 != rpath->frp_sw_if_index)
     {
         if (ip46_address_is_zero(&rpath->frp_addr))
@@ -1325,7 +1349,8 @@ fib_path_create (fib_node_index_t pl_index,
            {
                path->fp_type = FIB_PATH_TYPE_DEAG;
                path->deag.fp_tbl_id = rpath->frp_fib_index;
-           }           
+                path->deag.fp_rpf_id = ~0;
+           }
        }
        else
        {
@@ -1546,6 +1571,9 @@ fib_path_cmp_i (const fib_path_t *path1,
        case FIB_PATH_TYPE_UDP_ENCAP:
            res = (path1->udp_encap.fp_udp_encap_id - path2->udp_encap.fp_udp_encap_id);
            break;
+       case FIB_PATH_TYPE_DVR:
+           res = (path1->dvr.fp_interface - path2->dvr.fp_interface);
+           break;
        case FIB_PATH_TYPE_SPECIAL:
        case FIB_PATH_TYPE_RECEIVE:
        case FIB_PATH_TYPE_EXCLUSIVE:
@@ -1680,6 +1708,9 @@ fib_path_cmp_w_route_path (fib_node_index_t path_index,
                 res = (path->deag.fp_rpf_id - rpath->frp_rpf_id);
             }
             break;
+       case FIB_PATH_TYPE_DVR:
+           res = (path->dvr.fp_interface - rpath->frp_sw_if_index);
+           break;
        case FIB_PATH_TYPE_SPECIAL:
        case FIB_PATH_TYPE_RECEIVE:
        case FIB_PATH_TYPE_EXCLUSIVE:
@@ -1776,6 +1807,7 @@ fib_path_recursive_loop_detect (fib_node_index_t path_index,
     case FIB_PATH_TYPE_ATTACHED:
     case FIB_PATH_TYPE_SPECIAL:
     case FIB_PATH_TYPE_DEAG:
+    case FIB_PATH_TYPE_DVR:
     case FIB_PATH_TYPE_RECEIVE:
     case FIB_PATH_TYPE_INTF_RX:
     case FIB_PATH_TYPE_UDP_ENCAP:
@@ -1821,35 +1853,27 @@ fib_path_resolve (fib_node_index_t path_index)
        fib_path_attached_next_hop_set(path);
        break;
     case FIB_PATH_TYPE_ATTACHED:
-        if (DPO_PROTO_ETHERNET == path->fp_nh_proto)
+        /*
+         * path->attached.fp_interface
+         */
+        if (!vnet_sw_interface_is_admin_up(vnet_get_main(),
+                                           path->attached.fp_interface))
         {
-            l2_bridge_dpo_add_or_lock(path->attached.fp_interface,
-                                      &path->fp_dpo);
+            path->fp_oper_flags &= ~FIB_PATH_OPER_FLAG_RESOLVED;
         }
-        else
-        {
-            /*
-             * path->attached.fp_interface
-             */
-            if (!vnet_sw_interface_is_admin_up(vnet_get_main(),
-                                               path->attached.fp_interface))
-            {
-                path->fp_oper_flags &= ~FIB_PATH_OPER_FLAG_RESOLVED;
-            }
-            dpo_set(&path->fp_dpo,
-                    DPO_ADJACENCY,
-                    path->fp_nh_proto,
-                    fib_path_attached_get_adj(path,
-                                              dpo_proto_to_link(path->fp_nh_proto)));
+        dpo_set(&path->fp_dpo,
+                DPO_ADJACENCY,
+                path->fp_nh_proto,
+                fib_path_attached_get_adj(path,
+                                          dpo_proto_to_link(path->fp_nh_proto)));
 
-            /*
-             * become a child of the adjacency so we receive updates
-             * when the interface state changes
-             */
-            path->fp_sibling = adj_child_add(path->fp_dpo.dpoi_index,
-                                             FIB_NODE_TYPE_PATH,
-                                             fib_path_get_index(path));
-        }
+        /*
+         * become a child of the adjacency so we receive updates
+         * when the interface state changes
+         */
+        path->fp_sibling = adj_child_add(path->fp_dpo.dpoi_index,
+                                         FIB_NODE_TYPE_PATH,
+                                         fib_path_get_index(path));
        break;
     case FIB_PATH_TYPE_RECURSIVE:
     {
@@ -1975,6 +1999,11 @@ fib_path_resolve (fib_node_index_t path_index)
         }
         break;
     }
+    case FIB_PATH_TYPE_DVR:
+        dvr_dpo_add_or_lock(path->attached.fp_interface,
+                            path->fp_nh_proto,
+                            &path->fp_dpo);
+        break;
     case FIB_PATH_TYPE_RECEIVE:
        /*
         * Resolve via a receive DPO.
@@ -2031,6 +2060,8 @@ fib_path_get_resolving_interface (fib_node_index_t path_index)
             return (fib_entry_get_resolving_interface(path->fp_via_fib));
         }
         break;
+    case FIB_PATH_TYPE_DVR:
+       return (path->dvr.fp_interface);
     case FIB_PATH_TYPE_INTF_RX:
     case FIB_PATH_TYPE_UDP_ENCAP:
     case FIB_PATH_TYPE_SPECIAL:
@@ -2041,7 +2072,7 @@ fib_path_get_resolving_interface (fib_node_index_t path_index)
     case FIB_PATH_TYPE_BIER_IMP:
        break;
     }
-    return (~0);
+    return (dpo_get_urpf(&path->fp_dpo));
 }
 
 index_t
@@ -2059,6 +2090,7 @@ fib_path_get_resolving_index (fib_node_index_t path_index)
     case FIB_PATH_TYPE_INTF_RX:
     case FIB_PATH_TYPE_SPECIAL:
     case FIB_PATH_TYPE_DEAG:
+    case FIB_PATH_TYPE_DVR:
     case FIB_PATH_TYPE_EXCLUSIVE:
         break;
     case FIB_PATH_TYPE_UDP_ENCAP:
@@ -2187,6 +2219,9 @@ fib_path_contribute_urpf (fib_node_index_t path_index,
        }
        break;
     }
+    case FIB_PATH_TYPE_DVR:
+       fib_urpf_list_append(urpf, path->dvr.fp_interface);
+       break;
     case FIB_PATH_TYPE_DEAG:
     case FIB_PATH_TYPE_RECEIVE:
     case FIB_PATH_TYPE_INTF_RX:
@@ -2204,6 +2239,7 @@ fib_path_contribute_urpf (fib_node_index_t path_index,
 void
 fib_path_stack_mpls_disp (fib_node_index_t path_index,
                           dpo_proto_t payload_proto,
+                          fib_mpls_lsp_mode_t mode,
                           dpo_id_t *dpo)
 {
     fib_path_t *path;
@@ -2219,10 +2255,8 @@ fib_path_stack_mpls_disp (fib_node_index_t path_index,
         dpo_id_t tmp = DPO_INVALID;
 
         dpo_copy(&tmp, dpo);
-        dpo_set(dpo,
-                DPO_MPLS_DISPOSITION,
-                payload_proto,
-                mpls_disp_dpo_create(payload_proto, ~0, &tmp));
+
+        mpls_disp_dpo_create(payload_proto, ~0, mode, &tmp, dpo);
         dpo_reset(&tmp);
         break;
     }                
@@ -2231,12 +2265,10 @@ fib_path_stack_mpls_disp (fib_node_index_t path_index,
         dpo_id_t tmp = DPO_INVALID;
 
         dpo_copy(&tmp, dpo);
-        dpo_set(dpo,
-                DPO_MPLS_DISPOSITION,
-                payload_proto,
-                mpls_disp_dpo_create(payload_proto,
-                                     path->deag.fp_rpf_id,
-                                     &tmp));
+
+        mpls_disp_dpo_create(payload_proto,
+                             path->deag.fp_rpf_id,
+                             mode, &tmp, dpo);
         dpo_reset(&tmp);
         break;
     }
@@ -2250,6 +2282,7 @@ fib_path_stack_mpls_disp (fib_node_index_t path_index,
     case FIB_PATH_TYPE_BIER_FMASK:
     case FIB_PATH_TYPE_BIER_TABLE:
     case FIB_PATH_TYPE_BIER_IMP:
+    case FIB_PATH_TYPE_DVR:
         break;
     }
 }
@@ -2290,6 +2323,8 @@ fib_path_contribute_forwarding (fib_node_index_t path_index,
            case FIB_FORW_CHAIN_TYPE_MPLS_NON_EOS:
            case FIB_FORW_CHAIN_TYPE_ETHERNET:
            case FIB_FORW_CHAIN_TYPE_NSH:
+           case FIB_FORW_CHAIN_TYPE_MCAST_IP4:
+           case FIB_FORW_CHAIN_TYPE_MCAST_IP6:
            {
                adj_index_t ai;
 
@@ -2305,8 +2340,6 @@ fib_path_contribute_forwarding (fib_node_index_t path_index,
 
                break;
            }
-           case FIB_FORW_CHAIN_TYPE_MCAST_IP4:
-           case FIB_FORW_CHAIN_TYPE_MCAST_IP6:
            case FIB_FORW_CHAIN_TYPE_BIER:
                break;
            }
@@ -2400,11 +2433,6 @@ fib_path_contribute_forwarding (fib_node_index_t path_index,
            dpo_copy(dpo, &path->exclusive.fp_ex_dpo);
            break;
         case FIB_PATH_TYPE_ATTACHED:
-            if (DPO_PROTO_ETHERNET == path->fp_nh_proto)
-            {
-                dpo_copy(dpo, &path->fp_dpo);
-                break;
-            }
            switch (fct)
            {
            case FIB_FORW_CHAIN_TYPE_MPLS_NON_EOS:
@@ -2462,6 +2490,7 @@ fib_path_contribute_forwarding (fib_node_index_t path_index,
             break;
         case FIB_PATH_TYPE_RECEIVE:
         case FIB_PATH_TYPE_SPECIAL:
+        case FIB_PATH_TYPE_DVR:
             dpo_copy(dpo, &path->fp_dpo);
             break;
        }
@@ -2564,6 +2593,7 @@ fib_path_encode (fib_node_index_t path_list_index,
     api_rpath->rpath.frp_preference = path->fp_preference;
     api_rpath->rpath.frp_proto = path->fp_nh_proto;
     api_rpath->rpath.frp_sw_if_index = ~0;
+    api_rpath->rpath.frp_fib_index = 0;
     api_rpath->dpo = path->fp_dpo;
 
     switch (path->fp_type)
@@ -2589,7 +2619,16 @@ fib_path_encode (fib_node_index_t path_list_index,
         break;
       case FIB_PATH_TYPE_RECURSIVE:
         api_rpath->rpath.frp_addr = path->recursive.fp_nh.fp_ip;
+        api_rpath->rpath.frp_fib_index = path->recursive.fp_tbl_id;
         break;
+      case FIB_PATH_TYPE_DVR:
+          api_rpath->rpath.frp_sw_if_index = path->dvr.fp_interface;
+          api_rpath->rpath.frp_flags |= FIB_ROUTE_PATH_DVR;
+          break;
+      case FIB_PATH_TYPE_UDP_ENCAP:
+          api_rpath->rpath.frp_udp_encap_id = path->udp_encap.fp_udp_encap_id;
+          api_rpath->rpath.frp_flags |= FIB_ROUTE_PATH_UDP_ENCAP;
+          break;
       default:
         break;
       }