initial commit

vendor/golang.org/x/net/route/sys_openbsd.go

@@ -0,0 +1,72 @@
+// 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,
+	}
+}