From 621e49bb465f500cc46d47e39e828cf76d6381d7 Mon Sep 17 00:00:00 2001 From: Dimitri Sokolyuk Date: Tue, 24 Jul 2018 14:35:44 +0200 Subject: update vendor --- vendor/golang.org/x/net/route/sys_freebsd.go | 155 +++++++++++++++++++++++++++ 1 file changed, 155 insertions(+) create mode 100644 vendor/golang.org/x/net/route/sys_freebsd.go (limited to 'vendor/golang.org/x/net/route/sys_freebsd.go') diff --git a/vendor/golang.org/x/net/route/sys_freebsd.go b/vendor/golang.org/x/net/route/sys_freebsd.go new file mode 100644 index 0000000..89ba1c4 --- /dev/null +++ b/vendor/golang.org/x/net/route/sys_freebsd.go @@ -0,0 +1,155 @@ +// 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 ( + "syscall" + "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 { + if kernelAlign == 8 { + return []Sys{ + &RouteMetrics{ + PathMTU: int(nativeEndian.Uint64(m.raw[m.extOff+8 : m.extOff+16])), + }, + } + } + return []Sys{ + &RouteMetrics{ + PathMTU: int(nativeEndian.Uint32(m.raw[m.extOff+4 : m.extOff+8])), + }, + } +} + +// 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 + wordSize := int(unsafe.Sizeof(p)) + align := int(unsafe.Sizeof(p)) + // In the case of kern.supported_archs="amd64 i386", we need + // to know the underlying kernel's architecture because the + // alignment for routing facilities are set at the build time + // of the kernel. + conf, _ := syscall.Sysctl("kern.conftxt") + for i, j := 0, 0; j < len(conf); j++ { + if conf[j] != '\n' { + continue + } + s := conf[i:j] + i = j + 1 + if len(s) > len("machine") && s[:len("machine")] == "machine" { + s = s[len("machine"):] + for k := 0; k < len(s); k++ { + if s[k] == ' ' || s[k] == '\t' { + s = s[1:] + } + break + } + if s == "amd64" { + align = 8 + } + break + } + } + var rtm, ifm, ifam, ifmam, ifanm *wireFormat + if align != wordSize { // 386 emulation on amd64 + rtm = &wireFormat{extOff: sizeofRtMsghdrFreeBSD10Emu - sizeofRtMetricsFreeBSD10Emu, bodyOff: sizeofRtMsghdrFreeBSD10Emu} + ifm = &wireFormat{extOff: 16} + ifam = &wireFormat{extOff: sizeofIfaMsghdrFreeBSD10Emu, bodyOff: sizeofIfaMsghdrFreeBSD10Emu} + ifmam = &wireFormat{extOff: sizeofIfmaMsghdrFreeBSD10Emu, bodyOff: sizeofIfmaMsghdrFreeBSD10Emu} + ifanm = &wireFormat{extOff: sizeofIfAnnouncemsghdrFreeBSD10Emu, bodyOff: sizeofIfAnnouncemsghdrFreeBSD10Emu} + } else { + rtm = &wireFormat{extOff: sizeofRtMsghdrFreeBSD10 - sizeofRtMetricsFreeBSD10, bodyOff: sizeofRtMsghdrFreeBSD10} + ifm = &wireFormat{extOff: 16} + ifam = &wireFormat{extOff: sizeofIfaMsghdrFreeBSD10, bodyOff: sizeofIfaMsghdrFreeBSD10} + ifmam = &wireFormat{extOff: sizeofIfmaMsghdrFreeBSD10, bodyOff: sizeofIfmaMsghdrFreeBSD10} + ifanm = &wireFormat{extOff: sizeofIfAnnouncemsghdrFreeBSD10, bodyOff: sizeofIfAnnouncemsghdrFreeBSD10} + } + rel, _ := syscall.SysctlUint32("kern.osreldate") + switch { + case rel < 800000: + if align != wordSize { // 386 emulation on amd64 + ifm.bodyOff = sizeofIfMsghdrFreeBSD7Emu + } else { + ifm.bodyOff = sizeofIfMsghdrFreeBSD7 + } + case 800000 <= rel && rel < 900000: + if align != wordSize { // 386 emulation on amd64 + ifm.bodyOff = sizeofIfMsghdrFreeBSD8Emu + } else { + ifm.bodyOff = sizeofIfMsghdrFreeBSD8 + } + case 900000 <= rel && rel < 1000000: + if align != wordSize { // 386 emulation on amd64 + ifm.bodyOff = sizeofIfMsghdrFreeBSD9Emu + } else { + ifm.bodyOff = sizeofIfMsghdrFreeBSD9 + } + case 1000000 <= rel && rel < 1100000: + if align != wordSize { // 386 emulation on amd64 + ifm.bodyOff = sizeofIfMsghdrFreeBSD10Emu + } else { + ifm.bodyOff = sizeofIfMsghdrFreeBSD10 + } + default: + if align != wordSize { // 386 emulation on amd64 + ifm.bodyOff = sizeofIfMsghdrFreeBSD11Emu + } else { + ifm.bodyOff = sizeofIfMsghdrFreeBSD11 + } + } + rtm.parse = rtm.parseRouteMessage + ifm.parse = ifm.parseInterfaceMessage + ifam.parse = ifam.parseInterfaceAddrMessage + ifmam.parse = ifmam.parseInterfaceMulticastAddrMessage + ifanm.parse = ifanm.parseInterfaceAnnounceMessage + return align, 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, + } +} -- cgit v1.2.3