xref: /freebsd/sys/netlink/netlink_linux.h (revision 7ef62cebc2f965b0f640263e179276928885e33d)
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 
31 /*
32  * The file contains headers for the bridge interface between
33  * linux[_common] module and the netlink module
34  */
35 struct nlpcb;
36 struct nl_pstate;
37 
38 typedef struct mbuf *mbufs_to_linux_cb_t(int netlink_family, struct mbuf *m,
39     struct nlpcb *nlp);
40 typedef struct mbuf *msgs_to_linux_cb_t(int netlink_family, char *buf, int data_length,
41     struct nlpcb *nlp);
42 typedef struct nlmsghdr *msg_from_linux_cb_t(int netlink_family, struct nlmsghdr *hdr,
43     struct nl_pstate *npt);
44 
45 struct linux_netlink_provider {
46 	mbufs_to_linux_cb_t	*mbufs_to_linux;
47 	msgs_to_linux_cb_t	*msgs_to_linux;
48 	msg_from_linux_cb_t	*msg_from_linux;
49 
50 };
51 
52 extern struct linux_netlink_provider *linux_netlink_p;
53 
54 #endif
55