xref: /freebsd/sys/netlink/netlink_linux.h (revision 1edb7116)
1 /*-
2  * SPDX-License-Identifier: BSD-2-Clause
3  *
4  * Copyright (c) 2022 Alexander V. Chernikov <melifaro@FreeBSD.org>
5  *
6  * Redistribution and use in source and binary forms, with or without
7  * modification, are permitted provided that the following conditions
8  * are met:
9  * 1. Redistributions of source code must retain the above copyright
10  *    notice, this list of conditions and the following disclaimer.
11  * 2. Redistributions in binary form must reproduce the above copyright
12  *    notice, this list of conditions and the following disclaimer in the
13  *    documentation and/or other materials provided with the distribution.
14  *
15  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
16  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18  * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
19  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25  * SUCH DAMAGE.
26  */
27 
28 #ifndef _NETLINK_LINUX_VAR_H_
29 #define _NETLINK_LINUX_VAR_H_
30 #ifdef _KERNEL
31 
32 /*
33  * The file contains headers for the bridge interface between
34  * linux[_common] module and the netlink module
35  */
36 struct nlpcb;
37 struct nl_pstate;
38 struct nl_writer;
39 
40 typedef bool msgs_to_linux_cb_t(struct nl_writer *nw, struct nlpcb *nlp);
41 typedef struct nlmsghdr *msg_from_linux_cb_t(int netlink_family, struct nlmsghdr *hdr,
42     struct nl_pstate *npt);
43 
44 struct linux_netlink_provider {
45 	msgs_to_linux_cb_t	*msgs_to_linux;
46 	msg_from_linux_cb_t	*msg_from_linux;
47 
48 };
49 
50 extern struct linux_netlink_provider *linux_netlink_p;
51 
52 #endif
53 #endif
54