Reorganize source tree to use single autotools instance

Change-Id: I7b51f88292e057c6443b12224486f2d0c9f8ae23
Signed-off-by: Damjan Marion <damarion@cisco.com>

1 files changed, 658 insertions, 0 deletions

diff --git a/src/vnet/interface.h b/src/vnet/interface.h
new file mode 100644
index 00000000000..d42e5fda84c
--- /dev/null
+++ b/src/vnet/interface.h
@@ -0,0 +1,658 @@
+/*
+ * Copyright (c) 2015 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.
+ */
+/*
+ * interface.h: VNET interfaces/sub-interfaces
+ *
+ * Copyright (c) 2008 Eliot Dresselhaus
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining
+ * a copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sublicense, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ *  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ *  EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ *  MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ *  NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+ *  LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+ *  OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ *  WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#ifndef included_vnet_interface_h
+#define included_vnet_interface_h
+
+#include <vnet/unix/pcap.h>
+#include <vnet/l3_types.h>
+
+struct vnet_main_t;
+struct vnet_hw_interface_t;
+struct vnet_sw_interface_t;
+struct ip46_address_t;
+
+/* Interface up/down callback. */
+typedef clib_error_t *(vnet_interface_function_t)
+  (struct vnet_main_t * vnm, u32 if_index, u32 flags);
+
+/* Sub-interface add/del callback. */
+typedef clib_error_t *(vnet_subif_add_del_function_t)
+  (struct vnet_main_t * vnm, u32 if_index,
+   struct vnet_sw_interface_t * template, int is_add);
+
+/* Interface set mac address callback. */
+typedef clib_error_t *(vnet_interface_set_mac_address_function_t)
+  (struct vnet_hw_interface_t * hi, char *address);
+
+typedef enum vnet_interface_function_priority_t_
+{
+  VNET_ITF_FUNC_PRIORITY_LOW,
+  VNET_ITF_FUNC_PRIORITY_HIGH,
+} vnet_interface_function_priority_t;
+#define VNET_ITF_FUNC_N_PRIO ((vnet_interface_function_priority_t)VNET_ITF_FUNC_PRIORITY_HIGH+1)
+
+typedef struct _vnet_interface_function_list_elt
+{
+  struct _vnet_interface_function_list_elt *next_interface_function;
+  clib_error_t *(*fp) (struct vnet_main_t * vnm, u32 if_index, u32 flags);
+} _vnet_interface_function_list_elt_t;
+
+#define _VNET_INTERFACE_FUNCTION_DECL(f,tag)                            \
+                                                                        \
+static void __vnet_interface_function_init_##tag##_##f (void)           \
+    __attribute__((__constructor__)) ;                                  \
+                                                                        \
+static void __vnet_interface_function_init_##tag##_##f (void)           \
+{                                                                       \
+ vnet_main_t * vnm = vnet_get_main();                                   \
+ static _vnet_interface_function_list_elt_t init_function;              \
+ init_function.next_interface_function =                                \
+   vnm->tag##_functions[VNET_ITF_FUNC_PRIORITY_LOW];                    \
+ vnm->tag##_functions[VNET_ITF_FUNC_PRIORITY_LOW] = &init_function;     \
+ init_function.fp = (void *) &f;                                        \
+}
+
+#define _VNET_INTERFACE_FUNCTION_DECL_PRIO(f,tag,p)                    \
+                                                                        \
+static void __vnet_interface_function_init_##tag##_##f (void)           \
+    __attribute__((__constructor__)) ;                                  \
+                                                                        \
+static void __vnet_interface_function_init_##tag##_##f (void)           \
+{                                                                       \
+ vnet_main_t * vnm = vnet_get_main();                                   \
+ static _vnet_interface_function_list_elt_t init_function;              \
+ init_function.next_interface_function = vnm->tag##_functions[p];       \
+ vnm->tag##_functions[p] = &init_function;                              \
+ init_function.fp = (void *) &f;                                        \
+}
+
+#define VNET_HW_INTERFACE_ADD_DEL_FUNCTION(f)			\
+  _VNET_INTERFACE_FUNCTION_DECL(f,hw_interface_add_del)
+#define VNET_HW_INTERFACE_LINK_UP_DOWN_FUNCTION(f)		\
+  _VNET_INTERFACE_FUNCTION_DECL(f,hw_interface_link_up_down)
+#define VNET_HW_INTERFACE_LINK_UP_DOWN_FUNCTION_PRIO(f,p)        \
+  _VNET_INTERFACE_FUNCTION_DECL_PRIO(f,hw_interface_link_up_down,p)
+#define VNET_SW_INTERFACE_ADD_DEL_FUNCTION(f)			\
+  _VNET_INTERFACE_FUNCTION_DECL(f,sw_interface_add_del)
+#define VNET_SW_INTERFACE_ADMIN_UP_DOWN_FUNCTION(f)		\
+  _VNET_INTERFACE_FUNCTION_DECL(f,sw_interface_admin_up_down)
+#define VNET_SW_INTERFACE_ADMIN_UP_DOWN_FUNCTION_PRIO(f,p)     	\
+  _VNET_INTERFACE_FUNCTION_DECL_PRIO(f,sw_interface_admin_up_down, p)
+
+/* A class of hardware interface devices. */
+typedef struct _vnet_device_class
+{
+  /* Index into main vector. */
+  u32 index;
+
+  /* Device name (e.g. "FOOBAR 1234a"). */
+  char *name;
+
+  /* Function to call when hardware interface is added/deleted. */
+  vnet_interface_function_t *interface_add_del_function;
+
+  /* Function to bring device administratively up/down. */
+  vnet_interface_function_t *admin_up_down_function;
+
+  /* Function to call when sub-interface is added/deleted */
+  vnet_subif_add_del_function_t *subif_add_del_function;
+
+  /* Redistribute flag changes/existence of this interface class. */
+  u32 redistribute;
+
+  /* Transmit function. */
+  vlib_node_function_t *tx_function;
+
+  /* Error strings indexed by error code for this node. */
+  char **tx_function_error_strings;
+
+  /* Number of error codes used by this node. */
+  u32 tx_function_n_errors;
+
+  /* Renumber device name [only!] support, a control-plane kludge */
+  int (*name_renumber) (struct vnet_hw_interface_t * hi,
+			u32 new_dev_instance);
+
+  /* Format device instance as name. */
+  format_function_t *format_device_name;
+
+  /* Parse function for device name. */
+  unformat_function_t *unformat_device_name;
+
+  /* Format device verbosely for this class. */
+  format_function_t *format_device;
+
+  /* Trace buffer format for TX function. */
+  format_function_t *format_tx_trace;
+
+  /* Function to clear hardware counters for device. */
+  void (*clear_counters) (u32 dev_class_instance);
+
+    uword (*is_valid_class_for_interface) (struct vnet_main_t * vnm,
+					   u32 hw_if_index,
+					   u32 hw_class_index);
+
+  /* Called when hardware class of an interface changes. */
+  void (*hw_class_change) (struct vnet_main_t * vnm,
+			   u32 hw_if_index, u32 new_hw_class_index);
+
+  /* Called to redirect traffic from a specific interface instance */
+  void (*rx_redirect_to_node) (struct vnet_main_t * vnm,
+			       u32 hw_if_index, u32 node_index);
+
+  /* Link-list of all device classes set up by constructors created below */
+  struct _vnet_device_class *next_class_registration;
+
+  /* Splice vnet_interface_output_node into TX path */
+  u8 flatten_output_chains;
+
+  /* Function to set mac address. */
+  vnet_interface_set_mac_address_function_t *mac_addr_change_function;
+} vnet_device_class_t;
+
+#define VNET_DEVICE_CLASS(x,...)                                        \
+  __VA_ARGS__ vnet_device_class_t x;                                    \
+static void __vnet_add_device_class_registration_##x (void)             \
+    __attribute__((__constructor__)) ;                                  \
+static void __vnet_add_device_class_registration_##x (void)             \
+{                                                                       \
+    vnet_main_t * vnm = vnet_get_main();                                \
+    x.next_class_registration = vnm->device_class_registrations;        \
+    vnm->device_class_registrations = &x;                               \
+}                                                                       \
+__VA_ARGS__ vnet_device_class_t x
+
+#define VLIB_DEVICE_TX_FUNCTION_CLONE_TEMPLATE(arch, fn, tgt)		\
+  uword									\
+  __attribute__ ((flatten))						\
+  __attribute__ ((target (tgt)))					\
+  CLIB_CPU_OPTIMIZED							\
+  fn ## _ ## arch ( vlib_main_t * vm,					\
+                   vlib_node_runtime_t * node,				\
+                   vlib_frame_t * frame)				\
+  { return fn (vm, node, frame); }
+
+#define VLIB_DEVICE_TX_FUNCTION_MULTIARCH_CLONE(fn)			\
+  foreach_march_variant(VLIB_DEVICE_TX_FUNCTION_CLONE_TEMPLATE, fn)
+
+#if CLIB_DEBUG > 0
+#define VLIB_MULTIARCH_CLONE_AND_SELECT_FN(fn,...)
+#define VLIB_DEVICE_TX_FUNCTION_MULTIARCH(dev, fn)
+#else
+#define VLIB_DEVICE_TX_FUNCTION_MULTIARCH(dev, fn)			\
+  VLIB_DEVICE_TX_FUNCTION_MULTIARCH_CLONE(fn)				\
+  CLIB_MULTIARCH_SELECT_FN(fn, static inline)				\
+  static void __attribute__((__constructor__))				\
+  __vlib_device_tx_function_multiarch_select_##dev (void)		\
+  { dev.tx_function = fn ## _multiarch_select(); }
+#endif
+
+/**
+ * Link Type: A description of the protocol of packets on the link.
+ * On an ethernet link this maps directly into the ethertype. On a GRE tunnel
+ * it maps to the GRE-proto, etc for other lnk types.
+ */
+typedef enum vnet_link_t_
+{
+#if CLIB_DEBUG > 0
+  VNET_LINK_IP4 = 1,
+#else
+  VNET_LINK_IP4 = 0,
+#endif
+  VNET_LINK_IP6,
+  VNET_LINK_MPLS,
+  VNET_LINK_ETHERNET,
+  VNET_LINK_ARP,
+} __attribute__ ((packed)) vnet_link_t;
+
+#define VNET_LINKS {                   \
+    [VNET_LINK_ETHERNET] = "ethernet", \
+    [VNET_LINK_IP4] = "ipv4",          \
+    [VNET_LINK_IP6] = "ipv6",          \
+    [VNET_LINK_MPLS] = "mpls",         \
+    [VNET_LINK_ARP] = "arp",	       \
+}
+
+/**
+ * @brief Number of link types. Not part of the enum so it does not have to be included in
+ * switch statements
+ */
+#define VNET_LINK_NUM (VNET_LINK_ARP+1)
+
+/**
+ * @brief Convert a link to to an Ethertype
+ */
+extern vnet_l3_packet_type_t vnet_link_to_l3_proto (vnet_link_t link);
+
+/**
+ * @brief Attributes assignable to a HW interface Class.
+ */
+typedef enum vnet_hw_interface_class_flags_t_
+{
+  /**
+   * @brief a point 2 point interface
+   */
+  VNET_HW_INTERFACE_CLASS_FLAG_P2P = (1 << 0),
+} vnet_hw_interface_class_flags_t;
+
+/* Layer-2 (e.g. Ethernet) interface class. */
+typedef struct _vnet_hw_interface_class
+{
+  /* Index into main vector. */
+  u32 index;
+
+  /* Class name (e.g. "Ethernet"). */
+  char *name;
+
+  /* Flags */
+  vnet_hw_interface_class_flags_t flags;
+
+  /* Function to call when hardware interface is added/deleted. */
+  vnet_interface_function_t *interface_add_del_function;
+
+  /* Function to bring interface administratively up/down. */
+  vnet_interface_function_t *admin_up_down_function;
+
+  /* Function to call when link state changes. */
+  vnet_interface_function_t *link_up_down_function;
+
+  /* Function to call when link MAC changes. */
+  vnet_interface_set_mac_address_function_t *mac_addr_change_function;
+
+  /* Format function to display interface name. */
+  format_function_t *format_interface_name;
+
+  /* Format function to display interface address. */
+  format_function_t *format_address;
+
+  /* Format packet header for this interface class. */
+  format_function_t *format_header;
+
+  /* Format device verbosely for this class. */
+  format_function_t *format_device;
+
+  /* Parser for hardware (e.g. ethernet) address. */
+  unformat_function_t *unformat_hw_address;
+
+  /* Parser for packet header for e.g. rewrite string. */
+  unformat_function_t *unformat_header;
+
+  /* Builds a rewrite string for the interface to the destination
+   * for the payload/link type. */
+  u8 *(*build_rewrite) (struct vnet_main_t * vnm,
+			u32 sw_if_index,
+			vnet_link_t link_type, const void *dst_hw_address);
+
+  /* Update an adjacecny added by FIB (as opposed to via the
+   * neighbour resolution protocol). */
+  void (*update_adjacency) (struct vnet_main_t * vnm,
+			    u32 sw_if_index, u32 adj_index);
+
+    uword (*is_valid_class_for_interface) (struct vnet_main_t * vnm,
+					   u32 hw_if_index,
+					   u32 hw_class_index);
+
+  /* Called when hw interface class is changed and old hardware instance
+     may want to be deleted. */
+  void (*hw_class_change) (struct vnet_main_t * vnm, u32 hw_if_index,
+			   u32 old_class_index, u32 new_class_index);
+
+  /* List of hw interface classes, built by constructors */
+  struct _vnet_hw_interface_class *next_class_registration;
+
+} vnet_hw_interface_class_t;
+
+/**
+ * @brief Return a complete, zero-length (aka dummy) rewrite
+ */
+extern u8 *default_build_rewrite (struct vnet_main_t *vnm,
+				  u32 sw_if_index,
+				  vnet_link_t link_type,
+				  const void *dst_hw_address);
+
+/**
+ * @brief Default adjacency update function
+ */
+extern void default_update_adjacency (struct vnet_main_t *vnm,
+				      u32 sw_if_index, u32 adj_index);
+
+#define VNET_HW_INTERFACE_CLASS(x,...)                                  \
+  __VA_ARGS__ vnet_hw_interface_class_t x;                              \
+static void __vnet_add_hw_interface_class_registration_##x (void)       \
+    __attribute__((__constructor__)) ;                                  \
+static void __vnet_add_hw_interface_class_registration_##x (void)       \
+{                                                                       \
+    vnet_main_t * vnm = vnet_get_main();                                \
+    x.next_class_registration = vnm->hw_interface_class_registrations;  \
+    vnm->hw_interface_class_registrations = &x;                         \
+}                                                                       \
+__VA_ARGS__ vnet_hw_interface_class_t x
+
+/* Hardware-interface.  This corresponds to a physical wire
+   that packets flow over. */
+typedef struct vnet_hw_interface_t
+{
+  /* Interface name. */
+  u8 *name;
+
+  u32 flags;
+  /* Hardware link state is up. */
+#define VNET_HW_INTERFACE_FLAG_LINK_UP		(1 << 0)
+  /* Hardware duplex state */
+#define VNET_HW_INTERFACE_FLAG_DUPLEX_SHIFT	1
+#define VNET_HW_INTERFACE_FLAG_HALF_DUPLEX	(1 << 1)
+#define VNET_HW_INTERFACE_FLAG_FULL_DUPLEX	(1 << 2)
+#define VNET_HW_INTERFACE_FLAG_DUPLEX_MASK	\
+  (VNET_HW_INTERFACE_FLAG_HALF_DUPLEX |		\
+   VNET_HW_INTERFACE_FLAG_FULL_DUPLEX)
+
+  /* Hardware link speed */
+#define VNET_HW_INTERFACE_FLAG_SPEED_SHIFT	3
+#define VNET_HW_INTERFACE_FLAG_SPEED_10M	(1 << 3)
+#define VNET_HW_INTERFACE_FLAG_SPEED_100M	(1 << 4)
+#define VNET_HW_INTERFACE_FLAG_SPEED_1G		(1 << 5)
+#define VNET_HW_INTERFACE_FLAG_SPEED_10G	(1 << 6)
+#define VNET_HW_INTERFACE_FLAG_SPEED_40G	(1 << 7)
+#define VNET_HW_INTERFACE_FLAG_SPEED_100G	(1 << 8)
+#define VNET_HW_INTERFACE_FLAG_SPEED_MASK	\
+  (VNET_HW_INTERFACE_FLAG_SPEED_10M |		\
+   VNET_HW_INTERFACE_FLAG_SPEED_100M |		\
+   VNET_HW_INTERFACE_FLAG_SPEED_1G |		\
+   VNET_HW_INTERFACE_FLAG_SPEED_10G |		\
+   VNET_HW_INTERFACE_FLAG_SPEED_40G |		\
+   VNET_HW_INTERFACE_FLAG_SPEED_100G)
+
+  /* l2output node flags */
+#define VNET_HW_INTERFACE_FLAG_L2OUTPUT_SHIFT	9
+#define VNET_HW_INTERFACE_FLAG_L2OUTPUT_MAPPED	(1 << 9)
+
+  /* Hardware address as vector.  Zero (e.g. zero-length vector) if no
+     address for this class (e.g. PPP). */
+  u8 *hw_address;
+
+  /* Interface is up as far as software is concerned. */
+  /* NAME.{output,tx} nodes for this interface. */
+  u32 output_node_index, tx_node_index;
+
+  /* (dev_class, dev_instance) uniquely identifies hw interface. */
+  u32 dev_class_index;
+  u32 dev_instance;
+
+  /* (hw_class, hw_instance) uniquely identifies hw interface. */
+  u32 hw_class_index;
+  u32 hw_instance;
+
+  /* Hardware index for this hardware interface. */
+  u32 hw_if_index;
+
+  /* Software index for this hardware interface. */
+  u32 sw_if_index;
+
+  /* Maximum transmit rate for this interface in bits/sec. */
+  f64 max_rate_bits_per_sec;
+
+  /* Smallest packet size supported by this interface. */
+  u32 min_supported_packet_bytes;
+
+  /* Largest packet size supported by this interface. */
+  u32 max_supported_packet_bytes;
+
+  /* Smallest packet size for this interface. */
+  u32 min_packet_bytes;
+
+  /* Largest packet size for this interface. */
+  u32 max_packet_bytes;
+
+  /* Number of extra bytes that go on the wire.
+     Packet length on wire
+     = max (length + per_packet_overhead_bytes, min_packet_bytes). */
+  u32 per_packet_overhead_bytes;
+
+  /* Receive and transmit layer 3 packet size limits (MRU/MTU). */
+  u32 max_l3_packet_bytes[VLIB_N_RX_TX];
+
+  /* Hash table mapping sub interface id to sw_if_index. */
+  uword *sub_interface_sw_if_index_by_id;
+
+  /* Count of number of L2 subinterfaces */
+  u32 l2_if_count;
+
+  /* Bonded interface info -
+     0       - not a bonded interface nor a slave
+     ~0      - slave to a bonded interface
+     others  - A bonded interface with a pointer to bitmap for all slaves */
+  uword *bond_info;
+#define VNET_HW_INTERFACE_BOND_INFO_NONE ((uword *) 0)
+#define VNET_HW_INTERFACE_BOND_INFO_SLAVE ((uword *) ~0)
+
+} vnet_hw_interface_t;
+
+extern vnet_device_class_t vnet_local_interface_device_class;
+
+typedef enum
+{
+  /* A hw interface. */
+  VNET_SW_INTERFACE_TYPE_HARDWARE,
+
+  /* A sub-interface. */
+  VNET_SW_INTERFACE_TYPE_SUB,
+} vnet_sw_interface_type_t;
+
+typedef struct
+{
+  /*
+   * Subinterface ID. A number 0-N to uniquely identify
+   * this subinterface under the main (parent?) interface
+   */
+  u32 id;
+
+  /* Classification data. Used to associate packet header with subinterface. */
+  struct
+  {
+    u16 outer_vlan_id;
+    u16 inner_vlan_id;
+    union
+    {
+      u16 raw_flags;
+      struct
+      {
+	u16 no_tags:1;
+	u16 one_tag:1;
+	u16 two_tags:1;
+	u16 dot1ad:1;		/* 0 = dot1q, 1=dot1ad */
+	u16 exact_match:1;
+	u16 default_sub:1;
+	u16 outer_vlan_id_any:1;
+	u16 inner_vlan_id_any:1;
+      } flags;
+    };
+  } eth;
+} vnet_sub_interface_t;
+
+typedef enum
+{
+  /* Always flood */
+  VNET_FLOOD_CLASS_NORMAL,
+  VNET_FLOOD_CLASS_TUNNEL_MASTER,
+  /* Does not flood when tunnel master is in the same L2 BD */
+  VNET_FLOOD_CLASS_TUNNEL_NORMAL
+} vnet_flood_class_t;
+
+/* Software-interface.  This corresponds to a Ethernet VLAN, ATM vc, a
+   tunnel, etc.  Configuration (e.g. IP address) gets attached to
+   software interface. */
+typedef struct
+{
+  vnet_sw_interface_type_t type:16;
+
+  u16 flags;
+  /* Interface is "up" meaning adminstratively up.
+     Up in the sense of link state being up is maintained by hardware interface. */
+#define VNET_SW_INTERFACE_FLAG_ADMIN_UP (1 << 0)
+
+  /* Interface is disabled for forwarding: punt all traffic to slow-path. */
+#define VNET_SW_INTERFACE_FLAG_PUNT (1 << 1)
+
+#define VNET_SW_INTERFACE_FLAG_PROXY_ARP (1 << 2)
+
+#define VNET_SW_INTERFACE_FLAG_UNNUMBERED (1 << 3)
+
+#define VNET_SW_INTERFACE_FLAG_BOND_SLAVE (1 << 4)
+
+  /* Index for this interface. */
+  u32 sw_if_index;
+
+  /* Software interface index of super-interface;
+     equal to sw_if_index if this interface is not a
+     sub-interface. */
+  u32 sup_sw_if_index;
+
+  /* this swif is unnumbered, use addresses on unnumbered_sw_if_index... */
+  u32 unnumbered_sw_if_index;
+
+  u32 link_speed;
+
+  union
+  {
+    /* VNET_SW_INTERFACE_TYPE_HARDWARE. */
+    u32 hw_if_index;
+
+    /* VNET_SW_INTERFACE_TYPE_SUB. */
+    vnet_sub_interface_t sub;
+  };
+
+  vnet_flood_class_t flood_class;
+} vnet_sw_interface_t;
+
+typedef enum
+{
+  /* Simple counters. */
+  VNET_INTERFACE_COUNTER_DROP = 0,
+  VNET_INTERFACE_COUNTER_PUNT = 1,
+  VNET_INTERFACE_COUNTER_IP4 = 2,
+  VNET_INTERFACE_COUNTER_IP6 = 3,
+  VNET_INTERFACE_COUNTER_RX_NO_BUF = 4,
+  VNET_INTERFACE_COUNTER_RX_MISS = 5,
+  VNET_INTERFACE_COUNTER_RX_ERROR = 6,
+  VNET_INTERFACE_COUNTER_TX_ERROR = 7,
+  VNET_INTERFACE_COUNTER_MPLS = 8,
+  VNET_N_SIMPLE_INTERFACE_COUNTER = 9,
+  /* Combined counters. */
+  VNET_INTERFACE_COUNTER_RX = 0,
+  VNET_INTERFACE_COUNTER_TX = 1,
+  VNET_N_COMBINED_INTERFACE_COUNTER = 2,
+} vnet_interface_counter_type_t;
+
+typedef struct
+{
+  u32 output_node_index;
+  u32 tx_node_index;
+} vnet_hw_interface_nodes_t;
+
+typedef struct
+{
+  /* Hardware interfaces. */
+  vnet_hw_interface_t *hw_interfaces;
+
+  /* Hash table mapping HW interface name to index. */
+  uword *hw_interface_by_name;
+
+  /* Vectors if hardware interface classes and device classes. */
+  vnet_hw_interface_class_t *hw_interface_classes;
+  vnet_device_class_t *device_classes;
+
+  /* Hash table mapping name to hw interface/device class. */
+  uword *hw_interface_class_by_name;
+  uword *device_class_by_name;
+
+  /* Software interfaces. */
+  vnet_sw_interface_t *sw_interfaces;
+
+  /* Hash table mapping sub intfc sw_if_index by sup sw_if_index and sub id */
+  uword *sw_if_index_by_sup_and_sub;
+
+  /* Software interface counters both simple and combined
+     packet and byte counters. */
+  volatile u32 *sw_if_counter_lock;
+  vlib_simple_counter_main_t *sw_if_counters;
+  vlib_combined_counter_main_t *combined_sw_if_counters;
+
+  vnet_hw_interface_nodes_t *deleted_hw_interface_nodes;
+
+  /* pcap drop tracing */
+  int drop_pcap_enable;
+  pcap_main_t pcap_main;
+  u8 *pcap_filename;
+  u32 pcap_sw_if_index;
+  u32 pcap_pkts_to_capture;
+  uword *pcap_drop_filter_hash;
+
+  /* feature_arc_index */
+  u8 output_feature_arc_index;
+} vnet_interface_main_t;
+
+static inline void
+vnet_interface_counter_lock (vnet_interface_main_t * im)
+{
+  if (im->sw_if_counter_lock)
+    while (__sync_lock_test_and_set (im->sw_if_counter_lock, 1))
+      /* zzzz */ ;
+}
+
+static inline void
+vnet_interface_counter_unlock (vnet_interface_main_t * im)
+{
+  if (im->sw_if_counter_lock)
+    *im->sw_if_counter_lock = 0;
+}
+
+void vnet_pcap_drop_trace_filter_add_del (u32 error_index, int is_add);
+
+int vnet_interface_name_renumber (u32 sw_if_index, u32 new_show_dev_instance);
+
+#endif /* included_vnet_interface_h */
+
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */