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// 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 {
switch typ {
case sysNET_RT_STATS, sysNET_RT_TABLE:
return false
default:
return true
}
}
// A 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.Uint32(m.raw[60:64])),
},
}
}
// A 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[24]),
MTU: int(nativeEndian.Uint32(m.raw[28:32])),
},
}
}
func probeRoutingStack() (int, map[int]parseFn) {
var p uintptr
nooff := &wireFormat{extOff: -1, bodyOff: -1}
return int(unsafe.Sizeof(p)), map[int]parseFn{
sysRTM_ADD: nooff.parseRouteMessage,
sysRTM_DELETE: nooff.parseRouteMessage,
sysRTM_CHANGE: nooff.parseRouteMessage,
sysRTM_GET: nooff.parseRouteMessage,
sysRTM_LOSING: nooff.parseRouteMessage,
sysRTM_REDIRECT: nooff.parseRouteMessage,
sysRTM_MISS: nooff.parseRouteMessage,
sysRTM_LOCK: nooff.parseRouteMessage,
sysRTM_RESOLVE: nooff.parseRouteMessage,
sysRTM_NEWADDR: nooff.parseInterfaceAddrMessage,
sysRTM_DELADDR: nooff.parseInterfaceAddrMessage,
sysRTM_IFINFO: nooff.parseInterfaceMessage,
sysRTM_IFANNOUNCE: nooff.parseInterfaceAnnounceMessage,
}
}
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