summaryrefslogtreecommitdiff
path: root/vendor/golang.org/x/net/route/sys_dragonfly.go
blob: 0c14bc2b4d46d1a67d3a9a044e64957c68c63acd (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
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
// Copyright 2016 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.

package route

import "unsafe"

func (typ RIBType) parseable() bool { return true }

// RouteMetrics represents route metrics.
type RouteMetrics struct {
	PathMTU int // path maximum transmission unit
}

// SysType implements the SysType method of Sys interface.
func (rmx *RouteMetrics) SysType() SysType { return SysMetrics }

// Sys implements the Sys method of Message interface.
func (m *RouteMessage) Sys() []Sys {
	return []Sys{
		&RouteMetrics{
			PathMTU: int(nativeEndian.Uint64(m.raw[m.extOff+8 : m.extOff+16])),
		},
	}
}

// InterfaceMetrics represents interface metrics.
type InterfaceMetrics struct {
	Type int // interface type
	MTU  int // maximum transmission unit
}

// SysType implements the SysType method of Sys interface.
func (imx *InterfaceMetrics) SysType() SysType { return SysMetrics }

// Sys implements the Sys method of Message interface.
func (m *InterfaceMessage) Sys() []Sys {
	return []Sys{
		&InterfaceMetrics{
			Type: int(m.raw[m.extOff]),
			MTU:  int(nativeEndian.Uint32(m.raw[m.extOff+8 : m.extOff+12])),
		},
	}
}

func probeRoutingStack() (int, map[int]*wireFormat) {
	var p uintptr
	rtm := &wireFormat{extOff: 40, bodyOff: sizeofRtMsghdrDragonFlyBSD4}
	rtm.parse = rtm.parseRouteMessage
	ifm := &wireFormat{extOff: 16, bodyOff: sizeofIfMsghdrDragonFlyBSD4}
	ifm.parse = ifm.parseInterfaceMessage
	ifam := &wireFormat{extOff: sizeofIfaMsghdrDragonFlyBSD4, bodyOff: sizeofIfaMsghdrDragonFlyBSD4}
	ifam.parse = ifam.parseInterfaceAddrMessage
	ifmam := &wireFormat{extOff: sizeofIfmaMsghdrDragonFlyBSD4, bodyOff: sizeofIfmaMsghdrDragonFlyBSD4}
	ifmam.parse = ifmam.parseInterfaceMulticastAddrMessage
	ifanm := &wireFormat{extOff: sizeofIfAnnouncemsghdrDragonFlyBSD4, bodyOff: sizeofIfAnnouncemsghdrDragonFlyBSD4}
	ifanm.parse = ifanm.parseInterfaceAnnounceMessage
	return int(unsafe.Sizeof(p)), map[int]*wireFormat{
		sysRTM_ADD:        rtm,
		sysRTM_DELETE:     rtm,
		sysRTM_CHANGE:     rtm,
		sysRTM_GET:        rtm,
		sysRTM_LOSING:     rtm,
		sysRTM_REDIRECT:   rtm,
		sysRTM_MISS:       rtm,
		sysRTM_LOCK:       rtm,
		sysRTM_RESOLVE:    rtm,
		sysRTM_NEWADDR:    ifam,
		sysRTM_DELADDR:    ifam,
		sysRTM_IFINFO:     ifm,
		sysRTM_NEWMADDR:   ifmam,
		sysRTM_DELMADDR:   ifmam,
		sysRTM_IFANNOUNCE: ifanm,
	}
}