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lcpng_netlink.h
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lcpng_netlink.h
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/*
* Copyright (c) 2021 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.
*/
#include <vlib/vlib.h>
#include <plugins/lcpng/lcpng.h>
#include <netlink/msg.h>
#include <netlink/netlink.h>
#include <netlink/socket.h>
#include <netlink/route/link.h>
#include <netlink/route/route.h>
#include <netlink/route/neighbour.h>
#include <netlink/route/addr.h>
#include <netlink/route/link/vlan.h>
typedef enum nl_event_type_t_
{
NL_EVENT_READ,
NL_EVENT_READ_ERR,
} nl_event_type_t;
#define NL_RX_BUF_SIZE_DEF (1 << 27) /* 128 MB */
#define NL_TX_BUF_SIZE_DEF (1 << 18) /* 256 kB */
#define NL_BATCH_SIZE_DEF (1 << 11) /* 2048 */
#define NL_BATCH_DELAY_MS_DEF 50 /* 50 ms, max 20 batch/s */
#define NL_DBG(...) vlib_log_debug (lcp_nl_main.nl_logger, __VA_ARGS__);
#define NL_INFO(...) vlib_log_info (lcp_nl_main.nl_logger, __VA_ARGS__);
#define NL_NOTICE(...) vlib_log_notice (lcp_nl_main.nl_logger, __VA_ARGS__);
#define NL_WARN(...) vlib_log_warn (lcp_nl_main.nl_logger, __VA_ARGS__);
#define NL_ERROR(...) vlib_log_err (lcp_nl_main.nl_logger, __VA_ARGS__);
/* struct type to hold context on the netlink message being processed.
*/
typedef struct nl_msg_info
{
struct nl_msg *msg;
f64 ts;
} nl_msg_info_t;
typedef struct lcp_nl_netlink_namespace
{
struct nl_sock *sk_route;
nl_msg_info_t *nl_msg_queue;
uword clib_file_index; // clib file that holds the netlink socket for this
// namespace
u32 clib_file_lcp_refcnt; // number of interfaces watched in the this netlink
// namespace
u8 netns_name[LCP_NS_LEN]; // namespace name (can be empty, for 'self')
} lcp_nl_netlink_namespace_t;
typedef struct lcp_nl_main
{
vlib_log_class_t nl_logger;
/* TODO(pim): nl_ns should become a list, one for each unique namespace we
* created LCP pairs in.
*/
lcp_nl_netlink_namespace_t nl_ns;
u32 rx_buf_size;
u32 tx_buf_size;
u32 batch_size;
u32 batch_delay_ms;
} lcp_nl_main_t;
extern lcp_nl_main_t lcp_nl_main;
u8 *format_nl_object (u8 *s, va_list *args);
/* Functions from lcpng_nl_sync.c
*/
void lcp_nl_neigh_add (struct rtnl_neigh *rn);
void lcp_nl_neigh_del (struct rtnl_neigh *rn);
/*
* fd.io coding-style-patch-verification: ON
*
* Local Variables:
* eval: (c-set-style "gnu")
* End:
*/