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|
/*
* 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;
typedef enum
{
VNET_HW_INTERFACE_RX_MODE_UNKNOWN,
VNET_HW_INTERFACE_RX_MODE_POLLING,
VNET_HW_INTERFACE_RX_MODE_INTERRUPT,
VNET_HW_INTERFACE_RX_MODE_ADAPTIVE,
VNET_HW_INTERFACE_RX_MODE_DEFAULT,
VNET_HW_INTERFACE_NUM_RX_MODES,
} vnet_hw_interface_rx_mode;
/* 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);
/* Interface set rx mode callback. */
typedef clib_error_t *(vnet_interface_set_rx_mode_function_t)
(struct vnet_main_t * vnm, u32 if_index, u32 queue_id,
vnet_hw_interface_rx_mode mode);
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;
/* Function to call interface rx mode is changed */
vnet_interface_set_rx_mode_function_t *rx_mode_change_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;
/* 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,
VNET_LINK_NSH,
} __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", \
[VNET_LINK_NSH] = "nsh", \
}
/**
* @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_NSH+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)
/* rx mode flags */
#define VNET_HW_INTERFACE_FLAG_SUPPORTS_INT_MODE (1 << 10)
/* tx checksum offload */
#define VNET_HW_INTERFACE_FLAG_SUPPORTS_TX_L4_CKSUM_OFFLOAD (1 << 11)
/* 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)
/* Input node */
u32 input_node_index;
/* input node cpu index by queue */
u32 *input_node_thread_index_by_queue;
/* vnet_hw_interface_rx_mode by queue */
u8 *rx_mode_by_queue;
vnet_hw_interface_rx_mode default_rx_mode;
/* device input device_and_queue runtime index */
uword *dq_runtime_index_by_queue;
} 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_P2P,
} 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 struct
{
/*
* Subinterface ID. A number 0-N to uniquely identify
* this subinterface under the main interface
*/
u32 id;
u32 pool_index;
u8 client_mac[6];
} vnet_p2p_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)
/* Interface does not appear in CLI/API */
#define VNET_SW_INTERFACE_FLAG_HIDDEN (1 << 5)
/* Interface in ERROR state */
#define VNET_SW_INTERFACE_FLAG_ERROR (1 << 6)
/* 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_SW_INTERFACE_TYPE_P2P. */
vnet_p2p_sub_interface_t p2p;
};
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:
*/
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