65 lines
1.7 KiB
C
65 lines
1.7 KiB
C
/* netlink.h
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* netlink-related definitions shared between libwireshark and other parts
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*
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* Copyright 2018, Martin Kaiser
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*
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* Wireshark - Network traffic analyzer
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* By Gerald Combs <gerald@wireshark.org>
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* Copyright 1998 Gerald Combs
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*
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* SPDX-License-Identifier: GPL-2.0-or-later
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*/
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#ifndef _WS_NETLINK_H
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#define _WS_NETLINK_H
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#if defined(HAVE_LIBNL)
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/*
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* Pull in the include files where the kernel's nla_for_each_nested is defined.
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* This is to make sure that the kernel's definition will not overwrite our
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* version if msg.h or attr.h are included again explicitly after this file.
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*/
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DIAG_OFF_PEDANTIC
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#include <netlink/msg.h>
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DIAG_ON_PEDANTIC
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#include <netlink/attr.h>
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/*
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* And now for a steaming heap of suck.
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*
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* The nla_for_each_nested() macro defined by at least some versions of the
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* Linux kernel's headers doesn't do the casting required when compiling
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* with a C++ compiler or with -Wc++-compat, so we get warnings, and those
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* warnings are fatal when we compile this file.
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*
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* So we replace it with our own version, which does the requisite cast.
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*/
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/**
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* nla_for_each_nested - iterate over nested attributes
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* @pos: loop counter, set to current attribute
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* @nla: attribute containing the nested attributes
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* @rem: initialized to len, holds bytes currently remaining in stream
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*/
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#undef nla_for_each_nested
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#define nla_for_each_nested(pos, nla, rem) \
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nla_for_each_attr(pos, (struct nlattr *)nla_data(nla), nla_len(nla), rem)
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#endif /* HAVE_LIBNL */
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#endif /* _WS_NETLINK_H */
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/*
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* Editor modelines - https://www.wireshark.org/tools/modelines.html
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*
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* Local variables:
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* c-basic-offset: 4
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* tab-width: 8
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* indent-tabs-mode: nil
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* End:
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*
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* vi: set shiftwidth=4 tabstop=8 expandtab:
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* :indentSize=4:tabSize=8:noTabs=true:
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*/
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