cfd6422a52
This node is part of an A10-NSP (L2-BSA) development. Carrier networks tend to stack three or more tags for internal purposes and therefore hiding the service tags deep inside of the stack. When decomposing such an access network frame, the processing order is typically reversed: First distinguish by service, than by other means. This new netgragh node allows to bring the relevant VLAN in front (to the out-most position). This way other netgraph nodes (like ng_vlan) can operate on this specific type. Reviewed by: manpages (gbe), brueffer (manpages), kp Approved by: kp (mentor) MFC after: 1 month Relnotes: yes Sponsored by: IKS Service GmbH Differential Revision: https://reviews.freebsd.org/D22076
68 lines
2.3 KiB
C
68 lines
2.3 KiB
C
/*-
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* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
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*
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* Copyright (c) 2019-2021 IKS Service GmbH
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* Author: Lutz Donnerhacke <lutz@donnerhacke.de>
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*
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* $FreeBSD$
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*/
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#ifndef _NETGRAPH_NG_VLAN_ROTATE_H_
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#define _NETGRAPH_NG_VLAN_ROTATE_H_
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#define NG_VLANROTATE_NODE_TYPE "vlan_rotate"
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#define NGM_VLANROTATE_COOKIE 1568378766
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/* Hook names */
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#define NG_VLANROTATE_HOOK_ORDERED "ordered"
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#define NG_VLANROTATE_HOOK_ORIGINAL "original"
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#define NG_VLANROTATE_HOOK_EXCESSIVE "excessive"
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#define NG_VLANROTATE_HOOK_INCOMPLETE "incomplete"
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/* Limits */
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#define NG_VLANROTATE_MAX_VLANS 10
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/* Datastructures for netgraph commands */
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struct ng_vlanrotate_conf {
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int8_t rot;
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uint8_t min, max;
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};
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struct ng_vlanrotate_stat {
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uint64_t drops, excessive, incomplete;
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uint64_t histogram[NG_VLANROTATE_MAX_VLANS];
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};
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/* Netgraph commands understood by this node type */
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enum {
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NGM_VLANROTATE_GET_CONF = 1,
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NGM_VLANROTATE_SET_CONF,
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NGM_VLANROTATE_GET_STAT,
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NGM_VLANROTATE_CLR_STAT,
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NGM_VLANROTATE_GETCLR_STAT
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};
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#endif /* _NETGRAPH_NG_VLAN_ROTATE_H_ */
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