4 * Copyright 2017 6WIND S.A.
5 * Copyright 2017 Mellanox.
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
11 * * Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * * Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in
15 * the documentation and/or other materials provided with the
17 * * Neither the name of 6WIND S.A. nor the names of its
18 * contributors may be used to endorse or promote products derived
19 * from this software without specific prior written permission.
21 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
22 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
23 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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25 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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31 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
34 #ifndef _TAP_NETLINK_H_
35 #define _TAP_NETLINK_H_
39 #include <linux/rtnetlink.h>
40 #include <linux/netlink.h>
51 struct nested_tail *nested_tails;
54 #define NLMSG_TAIL(nlh) (void *)((char *)(nlh) + NLMSG_ALIGN((nlh)->nlmsg_len))
56 int nl_init(uint32_t nl_groups);
57 int nl_final(int nlsk_fd);
58 int nl_send(int nlsk_fd, struct nlmsghdr *nh);
59 int nl_recv(int nlsk_fd, int (*callback)(struct nlmsghdr *, void *), void *arg);
60 int nl_recv_ack(int nlsk_fd);
61 void nlattr_add(struct nlmsghdr *nh, unsigned short type,
62 unsigned int data_len, const void *data);
63 void nlattr_add8(struct nlmsghdr *nh, unsigned short type, uint8_t data);
64 void nlattr_add16(struct nlmsghdr *nh, unsigned short type, uint16_t data);
65 void nlattr_add32(struct nlmsghdr *nh, unsigned short type, uint32_t data);
66 int nlattr_nested_start(struct nlmsg *msg, uint16_t type);
67 void nlattr_nested_finish(struct nlmsg *msg);
69 #endif /* _TAP_NETLINK_H_ */