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