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 19 struct tap_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 28 int tap_nl_init(uint32_t nl_groups); 29 int tap_nl_final(int nlsk_fd); 30 int tap_nl_send(int nlsk_fd, struct nlmsghdr *nh); 31 int tap_nl_recv(int nlsk_fd, int (*callback)(struct nlmsghdr *, void *), 32 void *arg); 33 int tap_nl_recv_ack(int nlsk_fd); 34 void tap_nlattr_add(struct nlmsghdr *nh, unsigned short type, 35 unsigned int data_len, const void *data); 36 void tap_nlattr_add8(struct nlmsghdr *nh, unsigned short type, uint8_t data); 37 void tap_nlattr_add16(struct nlmsghdr *nh, unsigned short type, uint16_t data); 38 void tap_nlattr_add32(struct nlmsghdr *nh, unsigned short type, uint32_t data); 39 int tap_nlattr_nested_start(struct tap_nlmsg *msg, uint16_t type); 40 void tap_nlattr_nested_finish(struct tap_nlmsg *msg); 41 42 #endif /* _TAP_NETLINK_H_ */ 43