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/*
* Copyright 2016 Intel Corporation
*
* 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.
*/
#ifndef _TAP_INJECT_H
#define _TAP_INJECT_H
#include <vnet/ip/ip.h>
#include <vnet/plugin/plugin.h>
#ifndef ETHER_ADDR_LEN
#define ETHER_ADDR_LEN 6
#endif
typedef struct
{
/*
* tap-inject can be enabled or disabled in config file or during runtime.
* When disabled in config, it is not possible to enable during runtime.
*
* When the netlink-only option is used, netlink configuration is monitored
* and mirrored to the data plane but no traffic is passed between the host
* and the data plane.
*/
#define TAP_INJECT_F_CONFIG_ENABLE (1U << 0)
#define TAP_INJECT_F_CONFIG_DISABLE (1U << 1)
#define TAP_INJECT_F_CONFIG_NETLINK (1U << 2)
#define TAP_INJECT_F_ENABLED (1U << 3)
u32 flags;
u32 *sw_if_index_to_tap_fd;
u32 *sw_if_index_to_tap_if_index;
u32 *tap_fd_to_sw_if_index;
u32 *tap_if_index_to_sw_if_index;
u32 *interfaces_to_enable;
u32 *interfaces_to_disable;
u32 *rx_file_descriptors;
u32 rx_node_index;
u32 tx_node_index;
u32 neighbor_node_index;
u32 *rx_buffers;
} tap_inject_main_t;
tap_inject_main_t *tap_inject_get_main (void);
void tap_inject_insert_tap (u32 sw_if_index, u32 tap_fd, u32 tap_if_index);
void tap_inject_delete_tap (u32 sw_if_index);
u32 tap_inject_lookup_tap_fd (u32 sw_if_index);
u32 tap_inject_lookup_sw_if_index_from_tap_fd (u32 tap_fd);
u32 tap_inject_lookup_sw_if_index_from_tap_if_index (u32 tap_if_index);
static inline int
tap_inject_is_enabled (void)
{
tap_inject_main_t *im = tap_inject_get_main ();
return !!(im->flags & TAP_INJECT_F_ENABLED);
}
static inline int
tap_inject_is_config_enabled (void)
{
tap_inject_main_t *im = tap_inject_get_main ();
return !!(im->flags & TAP_INJECT_F_CONFIG_ENABLE);
}
static inline int
tap_inject_is_config_disabled (void)
{
tap_inject_main_t *im = tap_inject_get_main ();
return !!(im->flags & TAP_INJECT_F_CONFIG_DISABLE);
}
/* Netlink */
void tap_inject_enable_netlink (void);
/* Tap */
clib_error_t *tap_inject_tap_connect (vnet_hw_interface_t *hw);
clib_error_t *tap_inject_tap_disconnect (u32 sw_if_index);
u8 *format_tap_inject_tap_name (u8 *s, va_list *args);
#endif /* _TAP_INJECT_H */
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