xref: /freebsd/sys/netgraph/ng_vlan.h (revision 61e21613)
1 /*-
2  * SPDX-License-Identifier: BSD-2-Clause
3  *
4  * Copyright (c) 2003 IPNET Internet Communication Company
5  * Copyright (c) 2011 - 2012 Rozhuk Ivan <rozhuk.im@gmail.com>
6  * All rights reserved.
7  *
8  * Redistribution and use in source and binary forms, with or without
9  * modification, are permitted provided that the following conditions
10  * are met:
11  * 1. Redistributions of source code must retain the above copyright
12  *    notice, this list of conditions and the following disclaimer.
13  * 2. Redistributions in binary form must reproduce the above copyright
14  *    notice, this list of conditions and the following disclaimer in the
15  *    documentation and/or other materials provided with the distribution.
16  *
17  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
18  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
21  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27  * SUCH DAMAGE.
28  *
29  * Author: Ruslan Ermilov <ru@FreeBSD.org>
30  */
31 
32 #ifndef _NETGRAPH_NG_VLAN_H_
33 #define	_NETGRAPH_NG_VLAN_H_
34 
35 /* Using "vlan" in addfilter and gettable messages. 2012.01 */
36 #define	NG_VLAN_USE_OLD_VLAN_NAME 1
37 
38 /* Node type name and magic cookie. */
39 #define	NG_VLAN_NODE_TYPE	"vlan"
40 #define	NGM_VLAN_COOKIE		1068486472
41 
42 /* Hook names. */
43 #define	NG_VLAN_HOOK_DOWNSTREAM	"downstream"
44 #define	NG_VLAN_HOOK_NOMATCH	"nomatch"
45 
46 /* Netgraph commands. */
47 enum {
48 	NGM_VLAN_ADD_FILTER = 1,
49 	NGM_VLAN_DEL_FILTER,
50 	NGM_VLAN_GET_TABLE,
51 	NGM_VLAN_DEL_VID_FLT,
52 	NGM_VLAN_GET_DECAP,
53 	NGM_VLAN_SET_DECAP,
54 	NGM_VLAN_GET_ENCAP,
55 	NGM_VLAN_SET_ENCAP,
56 	NGM_VLAN_GET_ENCAP_PROTO,
57 	NGM_VLAN_SET_ENCAP_PROTO,
58 };
59 
60 #define	VLAN_ENCAP_FROM_FILTER	0x00000001
61 #define	VLAN_ENCAP_FROM_NOMATCH	0x00000002
62 
63 /* For NGM_VLAN_ADD_FILTER control message. */
64 struct ng_vlan_filter {
65 	char		hook_name[NG_HOOKSIZ];
66 #ifdef	NG_VLAN_USE_OLD_VLAN_NAME
67 	uint16_t	vlan;	/* VLAN - same as vid, oldname, deprecated. */
68 #endif
69 	uint16_t	vid;	/* VID - VLAN Identifier. */
70 	uint8_t		pcp;	/* PCP - Priority Code Point. */
71 	uint8_t		cfi;	/* CFI - Canonical Format Indicator. */
72 };
73 
74 /* Keep this in sync with the above structure definition.  */
75 #ifdef	NG_VLAN_USE_OLD_VLAN_NAME
76 #define	NG_VLAN_FILTER_FIELDS	{				\
77 	{ "hook",	&ng_parse_hookbuf_type	},		\
78 	{ "vlan",	&ng_parse_uint16_type	},		\
79 	{ "vid",	&ng_parse_uint16_type	},		\
80 	{ "pcp",	&ng_parse_uint8_type	},		\
81 	{ "cfi",	&ng_parse_uint8_type	},		\
82 	{ NULL }						\
83 }
84 #else
85 #define	NG_VLAN_FILTER_FIELDS	{				\
86 	{ "hook",	&ng_parse_hookbuf_type	},		\
87 	{ "vid",	&ng_parse_uint16_type	},		\
88 	{ "pcp",	&ng_parse_uint8_type	},		\
89 	{ "cfi",	&ng_parse_uint8_type	},		\
90 	{ NULL }						\
91 }
92 #endif
93 
94 /* Structure returned by NGM_VLAN_GET_TABLE. */
95 struct ng_vlan_table {
96 	u_int32_t	n;
97 	struct ng_vlan_filter filter[];
98 };
99 
100 /* Keep this in sync with the above structure definition. */
101 #define	NG_VLAN_TABLE_FIELDS	{				\
102 	{ "n",		&ng_parse_uint32_type },		\
103 	{ "filter",	&ng_vlan_table_array_type },		\
104 	{ NULL }						\
105 }
106 
107 #endif /* _NETGRAPH_NG_VLAN_H_ */
108