sys_netbsd.mx raw

   1  // Copyright 2016 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  package routebsd
   6  
   7  import "syscall"
   8  
   9  // MTU returns the interface MTU.
  10  func (m *InterfaceMessage) MTU() int {
  11  	return int(nativeEndian.Uint32(m.raw[m.extOff+8 : m.extOff+12]))
  12  }
  13  
  14  func probeRoutingStack() (int, map[int]*wireFormat) {
  15  	ifm := &wireFormat{extOff: 16, bodyOff: syscall.SizeofIfMsghdr}
  16  	ifm.parse = ifm.parseInterfaceMessage
  17  	ifam := &wireFormat{extOff: syscall.SizeofIfaMsghdr, bodyOff: syscall.SizeofIfaMsghdr}
  18  	ifam.parse = ifam.parseInterfaceAddrMessage
  19  	// NetBSD 6 and above kernels require 64-bit aligned access to
  20  	// routing facilities.
  21  	return 8, map[int]*wireFormat{
  22  		syscall.RTM_NEWADDR: ifam,
  23  		syscall.RTM_DELADDR: ifam,
  24  		syscall.RTM_IFINFO:  ifm,
  25  	}
  26  }
  27