LXR dpdk/drivers/net/tap/tap

   1/* SPDX-License-Identifier: BSD-3-Clause
   2 * Copyright 2017 6WIND S.A.
   3 * Copyright 2017 Mellanox Technologies, Ltd
   4 */
   5
   6#ifndef _TAP_NETLINK_H_
   7#define _TAP_NETLINK_H_
   8
   9#include <ctype.h>
  10#include <inttypes.h>
  11#include <linux/rtnetlink.h>
  12#include <linux/netlink.h>
  13#include <stdio.h>
  14
  15#include <rte_log.h>
  16
  17#define NLMSG_BUF 512
  18
  19struct nlmsg {
  20        struct nlmsghdr nh;
  21        struct tcmsg t;
  22        char buf[NLMSG_BUF];
  23        struct nested_tail *nested_tails;
  24};
  25
  26#define NLMSG_TAIL(nlh) (void *)((char *)(nlh) + NLMSG_ALIGN((nlh)->nlmsg_len))
  27
  28int tap_nl_init(uint32_t nl_groups);
  29int tap_nl_final(int nlsk_fd);
  30int tap_nl_send(int nlsk_fd, struct nlmsghdr *nh);
  31int tap_nl_recv(int nlsk_fd, int (*callback)(struct nlmsghdr *, void *),
  32                void *arg);
  33int tap_nl_recv_ack(int nlsk_fd);
  34void tap_nlattr_add(struct nlmsghdr *nh, unsigned short type,
  35                    unsigned int data_len, const void *data);
  36void tap_nlattr_add8(struct nlmsghdr *nh, unsigned short type, uint8_t data);
  37void tap_nlattr_add16(struct nlmsghdr *nh, unsigned short type, uint16_t data);
  38void tap_nlattr_add32(struct nlmsghdr *nh, unsigned short type, uint32_t data);
  39int tap_nlattr_nested_start(struct nlmsg *msg, uint16_t type);
  40void tap_nlattr_nested_finish(struct nlmsg *msg);
  41
  42#endif /* _TAP_NETLINK_H_ */
  43