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c344eff910
This change exports interface capabilities using the standard Netlink attribute type, bitset, and switches `ifconfig(8)` to use it when displaying interface data. Bitset comes in two representations. The first one is "compact", where the bits are exported via two arrays - "mask" listing the "valid" bits and "values, providing the values for those bits. The second one is more verbose, listing each bit as a separate item, with its name, id and value. The latter option is handy when submitting update requests. The support for setting capabilities will be added in the upcoming diffs. Differential Revision: https://reviews.freebsd.org/D40331
58 lines
2.2 KiB
C
58 lines
2.2 KiB
C
/*-
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* SPDX-License-Identifier: BSD-2-Clause
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*
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* Copyright (c) 2023 Alexander V. Chernikov <melifaro@FreeBSD.org>
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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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/*
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* Generic netlink message header and attributes
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*/
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#ifndef _NETLINK_NETLINK_BITSET_H_
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#define _NETLINK_NETLINK_BITSET_H_
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#include <netlink/netlink.h>
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/* Bitset type nested attributes */
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enum {
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NLA_BITSET_UNSPEC,
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NLA_BITSET_NOMASK = 1, /* flag: mask of valid bits not provided */
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NLA_BITSET_SIZE = 2, /* u32: max valid bit # */
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NLA_BITSET_BITS = 3, /* nested: array of NLA_BITSET_BIT */
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NLA_BITSET_VALUE = 4, /* binary: array of bit values */
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NLA_BITSET_MASK = 5, /* binary: array of valid bits */
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__NLA_BITSET_MAX,
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};
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#define NLA_BITSET_MAX (__NLA_BITSET_MAX - 1)
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enum {
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NLA_BITSET_BIT_UNSPEC,
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NLA_BITSET_BIT_INDEX = 1, /* u32: index of the bit */
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NLA_BITSET_BIT_NAME = 2, /* string: bit description */
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NLA_BITSET_BIT_VALUE = 3, /* flag: provided if bit is set */
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__NLA_BITSET_BIT_MAX,
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};
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#define NLA_BITSET_BIT_MAX (__NLA_BITSET_BIT_MAX - 1)
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#endif
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