Source file src/pkg/syscall/route_freebsd_32bit.go

     1	// Copyright 2014 The Go Authors. All rights reserved.
     2	// Use of this source code is governed by a BSD-style
     3	// license that can be found in the LICENSE file.
     4	
     5	// +build freebsd,386 freebsd,arm
     6	
     7	package syscall
     8	
     9	import "unsafe"
    10	
    11	func (any *anyMessage) parseRouteMessage(b []byte) *RouteMessage {
    12		p := (*RouteMessage)(unsafe.Pointer(any))
    13		off := int(unsafe.Offsetof(p.Header.Rmx)) + SizeofRtMetrics
    14		if freebsdConfArch == "amd64" {
    15			off += SizeofRtMetrics // rt_metrics on amd64 is simply doubled
    16		}
    17		return &RouteMessage{Header: p.Header, Data: b[rsaAlignOf(off):any.Msglen]}
    18	}
    19	
    20	func (any *anyMessage) parseInterfaceMessage(b []byte) *InterfaceMessage {
    21		p := (*InterfaceMessage)(unsafe.Pointer(any))
    22		// FreeBSD 10 and beyond have a restructured mbuf
    23		// packet header view.
    24		// See https://svnweb.freebsd.org/base?view=revision&revision=254804.
    25		if supportsABI(1000000) {
    26			m := (*ifMsghdr)(unsafe.Pointer(any))
    27			p.Header.Data.Hwassist = uint32(m.Data.Hwassist)
    28			p.Header.Data.Epoch = m.Data.Epoch
    29			p.Header.Data.Lastchange = m.Data.Lastchange
    30			return &InterfaceMessage{Header: p.Header, Data: b[int(unsafe.Offsetof(p.Header.Data))+int(p.Header.Data.Datalen) : any.Msglen]}
    31		}
    32		return &InterfaceMessage{Header: p.Header, Data: b[int(unsafe.Offsetof(p.Header.Data))+int(p.Header.Data.Datalen) : any.Msglen]}
    33	}
    34	

View as plain text