ng_vlan.h

Go to the documentation of this file.

/*-
 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
 *
 * Copyright (c) 2003 IPNET Internet Communication Company
 * Copyright (c) 2011 - 2012 Rozhuk Ivan <rozhuk.im@gmail.com>
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 *
 * Author: Ruslan Ermilov <ru@FreeBSD.org>
 *
 * $FreeBSD$
 */
 
#ifndef _NETGRAPH_NG_VLAN_H_
#define _NETGRAPH_NG_VLAN_H_
 
/* Using "vlan" in addfilter and gettable messages. 2012.01 */
#define NG_VLAN_USE_OLD_VLAN_NAME 1
 
/* Node type name and magic cookie. */
#define NG_VLAN_NODE_TYPE       "vlan"
#define NGM_VLAN_COOKIE         1068486472
 
/* Hook names. */
#define NG_VLAN_HOOK_DOWNSTREAM "downstream"
#define NG_VLAN_HOOK_NOMATCH    "nomatch"
 
/* Netgraph commands. */
enum {
        NGM_VLAN_ADD_FILTER = 1,
        NGM_VLAN_DEL_FILTER,
        NGM_VLAN_GET_TABLE,
        NGM_VLAN_DEL_VID_FLT,
        NGM_VLAN_GET_DECAP,
        NGM_VLAN_SET_DECAP,
        NGM_VLAN_GET_ENCAP,
        NGM_VLAN_SET_ENCAP,
        NGM_VLAN_GET_ENCAP_PROTO,
        NGM_VLAN_SET_ENCAP_PROTO,
};
 
#define VLAN_ENCAP_FROM_FILTER  0x00000001
#define VLAN_ENCAP_FROM_NOMATCH 0x00000002
 
/* For NGM_VLAN_ADD_FILTER control message. */
struct ng_vlan_filter {
        char            hook_name[NG_HOOKSIZ];
#ifdef  NG_VLAN_USE_OLD_VLAN_NAME
        uint16_t        vlan;   /* VLAN - same as vid, oldname, deprecated. */
#endif
        uint16_t        vid;    /* VID - VLAN Identifier. */
        uint8_t         pcp;    /* PCP - Priority Code Point. */
        uint8_t         cfi;    /* CFI - Canonical Format Indicator. */
};
 
/* Keep this in sync with the above structure definition.  */
#ifdef  NG_VLAN_USE_OLD_VLAN_NAME
#define NG_VLAN_FILTER_FIELDS   {                               \
        { "hook",       &ng_parse_hookbuf_type  },              \
        { "vlan",       &ng_parse_uint16_type   },              \
        { "vid",        &ng_parse_uint16_type   },              \
        { "pcp",        &ng_parse_uint8_type    },              \
        { "cfi",        &ng_parse_uint8_type    },              \
        { NULL }                                                \
}
#else
#define NG_VLAN_FILTER_FIELDS   {                               \
        { "hook",       &ng_parse_hookbuf_type  },              \
        { "vid",        &ng_parse_uint16_type   },              \
        { "pcp",        &ng_parse_uint8_type    },              \
        { "cfi",        &ng_parse_uint8_type    },              \
        { NULL }                                                \
}
#endif
 
/* Structure returned by NGM_VLAN_GET_TABLE. */
struct ng_vlan_table {
        u_int32_t       n;
        struct ng_vlan_filter filter[];
};
 
/* Keep this in sync with the above structure definition. */
#define NG_VLAN_TABLE_FIELDS    {                               \
        { "n",          &ng_parse_uint32_type },                \
        { "filter",     &ng_vlan_table_array_type },            \
        { NULL }                                                \
}
 
#endif /* _NETGRAPH_NG_VLAN_H_ */