// Copyright 2014 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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// +build freebsd,386 freebsd,arm
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package syscall
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import "unsafe"
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func (any *anyMessage) parseRouteMessage(b []byte) *RouteMessage {
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p := (*RouteMessage)(unsafe.Pointer(any))
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off := int(unsafe.Offsetof(p.Header.Rmx)) + SizeofRtMetrics
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if freebsdConfArch == "amd64" {
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off += SizeofRtMetrics // rt_metrics on amd64 is simply doubled
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}
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return &RouteMessage{Header: p.Header, Data: b[rsaAlignOf(off):any.Msglen]}
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}
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func (any *anyMessage) parseInterfaceMessage(b []byte) *InterfaceMessage {
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p := (*InterfaceMessage)(unsafe.Pointer(any))
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// FreeBSD 10 and beyond have a restructured mbuf
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// packet header view.
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// See https://svnweb.freebsd.org/base?view=revision&revision=254804.
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if supportsABI(1000000) {
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m := (*ifMsghdr)(unsafe.Pointer(any))
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p.Header.Data.Hwassist = uint32(m.Data.Hwassist)
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p.Header.Data.Epoch = m.Data.Epoch
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p.Header.Data.Lastchange = m.Data.Lastchange
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return &InterfaceMessage{Header: p.Header, Data: b[int(unsafe.Offsetof(p.Header.Data))+int(p.Header.Data.Datalen) : any.Msglen]}
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}
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return &InterfaceMessage{Header: p.Header, Data: b[int(unsafe.Offsetof(p.Header.Data))+int(p.Header.Data.Datalen) : any.Msglen]}
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}
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