blob: aed8682237a033f21387cf94d468edfad59b455e (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
|
// 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.
// +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]}
}
|
