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Merge pull request #375 from aaithal/complieOnNonLinuxPlatforms

Browse Source 
pkg/ns: refactored so that builds succeed on non-linux platforms
This commit is contained in:
Dan Williams 2017-02-27 11:46:22 -06:00 committed by GitHub
commit 94e02e0768
53 changed files with 2039 additions and 379 deletions
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54
Godeps/Godeps.json generated
View File

@ -1,7 +1,7 @@
{
"ImportPath": "github.com/containernetworking/cni",
"GoVersion": "go1.6",
"GodepVersion": "v75",
"GodepVersion": "v79",
"Packages": [
"./..."
],
@ -39,46 +39,6 @@
"Comment": "v1.2.0-29-g7f8ab55",
"Rev": "7f8ab55aaf3b86885aa55b762e803744d1674700"
},
{
"ImportPath": "github.com/onsi/ginkgo/ginkgo",
"Comment": "v1.2.0-29-g7f8ab55",
"Rev": "7f8ab55aaf3b86885aa55b762e803744d1674700"
},
{
"ImportPath": "github.com/onsi/ginkgo/ginkgo/convert",
"Comment": "v1.2.0-29-g7f8ab55",
"Rev": "7f8ab55aaf3b86885aa55b762e803744d1674700"
},
{
"ImportPath": "github.com/onsi/ginkgo/ginkgo/interrupthandler",
"Comment": "v1.2.0-29-g7f8ab55",
"Rev": "7f8ab55aaf3b86885aa55b762e803744d1674700"
},
{
"ImportPath": "github.com/onsi/ginkgo/ginkgo/nodot",
"Comment": "v1.2.0-29-g7f8ab55",
"Rev": "7f8ab55aaf3b86885aa55b762e803744d1674700"
},
{
"ImportPath": "github.com/onsi/ginkgo/ginkgo/testrunner",
"Comment": "v1.2.0-29-g7f8ab55",
"Rev": "7f8ab55aaf3b86885aa55b762e803744d1674700"
},
{
"ImportPath": "github.com/onsi/ginkgo/ginkgo/testsuite",
"Comment": "v1.2.0-29-g7f8ab55",
"Rev": "7f8ab55aaf3b86885aa55b762e803744d1674700"
},
{
"ImportPath": "github.com/onsi/ginkgo/ginkgo/watch",
"Comment": "v1.2.0-29-g7f8ab55",
"Rev": "7f8ab55aaf3b86885aa55b762e803744d1674700"
},
{
"ImportPath": "github.com/onsi/ginkgo/integration",
"Comment": "v1.2.0-29-g7f8ab55",
"Rev": "7f8ab55aaf3b86885aa55b762e803744d1674700"
},
{
"ImportPath": "github.com/onsi/ginkgo/internal/codelocation",
"Comment": "v1.2.0-29-g7f8ab55",
@ -216,19 +176,19 @@
},
{
"ImportPath": "github.com/vishvananda/netlink",
"Rev": "a1f8555521646b5a9800f39c5fd477597697135c"
"Rev": "fe3b5664d23a11b52ba59bece4ff29c52772a56b"
},
{
"ImportPath": "github.com/vishvananda/netlink/nl",
"Rev": "a1f8555521646b5a9800f39c5fd477597697135c"
},
{
"ImportPath": "golang.org/x/sys/unix",
"Rev": "076b546753157f758b316e59bcb51e6807c04057"
"Rev": "fe3b5664d23a11b52ba59bece4ff29c52772a56b"
},
{
"ImportPath": "github.com/vishvananda/netns",
"Rev": "8ba1072b58e0c2a240eb5f6120165c7776c3e7b8"
},
{
"ImportPath": "golang.org/x/sys/unix",
"Rev": "076b546753157f758b316e59bcb51e6807c04057"
}
]
}

20
pkg/ip/route.go
View File

@ -25,23 +25,3 @@ func AddDefaultRoute(gw net.IP, dev netlink.Link) error {
_, defNet, _ := net.ParseCIDR("0.0.0.0/0")
return AddRoute(defNet, gw, dev)
}
// AddRoute adds a universally-scoped route to a device.
func AddRoute(ipn *net.IPNet, gw net.IP, dev netlink.Link) error {
return netlink.RouteAdd(&netlink.Route{
LinkIndex: dev.Attrs().Index,
Scope: netlink.SCOPE_UNIVERSE,
Dst: ipn,
Gw: gw,
})
}
// AddHostRoute adds a host-scoped route to a device.
func AddHostRoute(ipn *net.IPNet, gw net.IP, dev netlink.Link) error {
return netlink.RouteAdd(&netlink.Route{
LinkIndex: dev.Attrs().Index,
Scope: netlink.SCOPE_HOST,
Dst: ipn,
Gw: gw,
})
}

41
pkg/ip/route_linux.go Normal file
View File

@ -0,0 +1,41 @@
// Copyright 2015-2017 CNI authors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package ip
import (
"net"
"github.com/vishvananda/netlink"
)
// AddRoute adds a universally-scoped route to a device.
func AddRoute(ipn *net.IPNet, gw net.IP, dev netlink.Link) error {
return netlink.RouteAdd(&netlink.Route{
LinkIndex: dev.Attrs().Index,
Scope: netlink.SCOPE_UNIVERSE,
Dst: ipn,
Gw: gw,
})
}
// AddHostRoute adds a host-scoped route to a device.
func AddHostRoute(ipn *net.IPNet, gw net.IP, dev netlink.Link) error {
return netlink.RouteAdd(&netlink.Route{
LinkIndex: dev.Attrs().Index,
Scope: netlink.SCOPE_HOST,
Dst: ipn,
Gw: gw,
})
}

34
pkg/ip/route_unspecified.go Normal file
View File

@ -0,0 +1,34 @@
// Copyright 2015-2017 CNI authors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// +build !linux
package ip
import (
"net"
"github.com/containernetworking/cni/pkg/types"
"github.com/vishvananda/netlink"
)
// AddRoute adds a universally-scoped route to a device.
func AddRoute(ipn *net.IPNet, gw net.IP, dev netlink.Link) error {
return types.NotImplementedError
}
// AddHostRoute adds a host-scoped route to a device.
func AddHostRoute(ipn *net.IPNet, gw net.IP, dev netlink.Link) error {
return types.NotImplementedError
}

131
pkg/ns/ns.go
View File

@ -15,15 +15,11 @@
package ns
import (
"crypto/rand"
"fmt"
"os"
"path"
"runtime"
"sync"
"syscall"
"golang.org/x/sys/unix"
)
type NetNS interface {
@ -65,18 +61,6 @@ type netNS struct {
// netNS implements the NetNS interface
var _ NetNS = &netNS{}
func getCurrentThreadNetNSPath() string {
// /proc/self/ns/net returns the namespace of the main thread, not
// of whatever thread this goroutine is running on. Make sure we
// use the thread's net namespace since the thread is switching around
return fmt.Sprintf("/proc/%d/task/%d/ns/net", os.Getpid(), unix.Gettid())
}
// Returns an object representing the current OS thread's network namespace
func GetCurrentNS() (NetNS, error) {
return GetNS(getCurrentThreadNetNSPath())
}
const (
// https://github.com/torvalds/linux/blob/master/include/uapi/linux/magic.h
NSFS_MAGIC = 0x6e736673
@ -125,82 +109,6 @@ func GetNS(nspath string) (NetNS, error) {
return &netNS{file: fd}, nil
}
// Creates a new persistent network namespace and returns an object
// representing that namespace, without switching to it
func NewNS() (NetNS, error) {
const nsRunDir = "/var/run/netns"
b := make([]byte, 16)
_, err := rand.Reader.Read(b)
if err != nil {
return nil, fmt.Errorf("failed to generate random netns name: %v", err)
}
err = os.MkdirAll(nsRunDir, 0755)
if err != nil {
return nil, err
}
// create an empty file at the mount point
nsName := fmt.Sprintf("cni-%x-%x-%x-%x-%x", b[0:4], b[4:6], b[6:8], b[8:10], b[10:])
nsPath := path.Join(nsRunDir, nsName)
mountPointFd, err := os.Create(nsPath)
if err != nil {
return nil, err
}
mountPointFd.Close()
// Ensure the mount point is cleaned up on errors; if the namespace
// was successfully mounted this will have no effect because the file
// is in-use
defer os.RemoveAll(nsPath)
var wg sync.WaitGroup
wg.Add(1)
// do namespace work in a dedicated goroutine, so that we can safely
// Lock/Unlock OSThread without upsetting the lock/unlock state of
// the caller of this function
var fd *os.File
go (func() {
defer wg.Done()
runtime.LockOSThread()
var origNS NetNS
origNS, err = GetNS(getCurrentThreadNetNSPath())
if err != nil {
return
}
defer origNS.Close()
// create a new netns on the current thread
err = unix.Unshare(unix.CLONE_NEWNET)
if err != nil {
return
}
defer origNS.Set()
// bind mount the new netns from the current thread onto the mount point
err = unix.Mount(getCurrentThreadNetNSPath(), nsPath, "none", unix.MS_BIND, "")
if err != nil {
return
}
fd, err = os.Open(nsPath)
if err != nil {
return
}
})()
wg.Wait()
if err != nil {
unix.Unmount(nsPath, unix.MNT_DETACH)
return nil, fmt.Errorf("failed to create namespace: %v", err)
}
return &netNS{file: fd, mounted: true}, nil
}
func (ns *netNS) Path() string {
return ns.file.Name()
}
@ -216,36 +124,13 @@ func (ns *netNS) errorIfClosed() error {
return nil
}
func (ns *netNS) Close() error {
if err := ns.errorIfClosed(); err != nil {
return err
}
if err := ns.file.Close(); err != nil {
return fmt.Errorf("Failed to close %q: %v", ns.file.Name(), err)
}
ns.closed = true
if ns.mounted {
if err := unix.Unmount(ns.file.Name(), unix.MNT_DETACH); err != nil {
return fmt.Errorf("Failed to unmount namespace %s: %v", ns.file.Name(), err)
}
if err := os.RemoveAll(ns.file.Name()); err != nil {
return fmt.Errorf("Failed to clean up namespace %s: %v", ns.file.Name(), err)
}
ns.mounted = false
}
return nil
}
func (ns *netNS) Do(toRun func(NetNS) error) error {
if err := ns.errorIfClosed(); err != nil {
return err
}
containedCall := func(hostNS NetNS) error {
threadNS, err := GetNS(getCurrentThreadNetNSPath())
threadNS, err := GetCurrentNS()
if err != nil {
return fmt.Errorf("failed to open current netns: %v", err)
}
@ -261,7 +146,7 @@ func (ns *netNS) Do(toRun func(NetNS) error) error {
}
// save a handle to current network namespace
hostNS, err := GetNS(getCurrentThreadNetNSPath())
hostNS, err := GetCurrentNS()
if err != nil {
return fmt.Errorf("Failed to open current namespace: %v", err)
}
@ -281,18 +166,6 @@ func (ns *netNS) Do(toRun func(NetNS) error) error {
return innerError
}
func (ns *netNS) Set() error {
if err := ns.errorIfClosed(); err != nil {
return err
}
if _, _, err := unix.Syscall(unix.SYS_SETNS, ns.Fd(), uintptr(unix.CLONE_NEWNET), 0); err != 0 {
return fmt.Errorf("Error switching to ns %v: %v", ns.file.Name(), err)
}
return nil
}
// WithNetNSPath executes the passed closure under the given network
// namespace, restoring the original namespace afterwards.
func WithNetNSPath(nspath string, toRun func(NetNS) error) error {

149
pkg/ns/ns_linux.go Normal file
View File

@ -0,0 +1,149 @@
// Copyright 2015-2017 CNI authors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package ns
import (
"crypto/rand"
"fmt"
"os"
"path"
"runtime"
"sync"
"golang.org/x/sys/unix"
)
// Returns an object representing the current OS thread's network namespace
func GetCurrentNS() (NetNS, error) {
return GetNS(getCurrentThreadNetNSPath())
}
func getCurrentThreadNetNSPath() string {
// /proc/self/ns/net returns the namespace of the main thread, not
// of whatever thread this goroutine is running on. Make sure we
// use the thread's net namespace since the thread is switching around
return fmt.Sprintf("/proc/%d/task/%d/ns/net", os.Getpid(), unix.Gettid())
}
// Creates a new persistent network namespace and returns an object
// representing that namespace, without switching to it
func NewNS() (NetNS, error) {
const nsRunDir = "/var/run/netns"
b := make([]byte, 16)
_, err := rand.Reader.Read(b)
if err != nil {
return nil, fmt.Errorf("failed to generate random netns name: %v", err)
}
err = os.MkdirAll(nsRunDir, 0755)
if err != nil {
return nil, err
}
// create an empty file at the mount point
nsName := fmt.Sprintf("cni-%x-%x-%x-%x-%x", b[0:4], b[4:6], b[6:8], b[8:10], b[10:])
nsPath := path.Join(nsRunDir, nsName)
mountPointFd, err := os.Create(nsPath)
if err != nil {
return nil, err
}
mountPointFd.Close()
// Ensure the mount point is cleaned up on errors; if the namespace
// was successfully mounted this will have no effect because the file
// is in-use
defer os.RemoveAll(nsPath)
var wg sync.WaitGroup
wg.Add(1)
// do namespace work in a dedicated goroutine, so that we can safely
// Lock/Unlock OSThread without upsetting the lock/unlock state of
// the caller of this function
var fd *os.File
go (func() {
defer wg.Done()
runtime.LockOSThread()
var origNS NetNS
origNS, err = GetNS(getCurrentThreadNetNSPath())
if err != nil {
return
}
defer origNS.Close()
// create a new netns on the current thread
err = unix.Unshare(unix.CLONE_NEWNET)
if err != nil {
return
}
defer origNS.Set()
// bind mount the new netns from the current thread onto the mount point
err = unix.Mount(getCurrentThreadNetNSPath(), nsPath, "none", unix.MS_BIND, "")
if err != nil {
return
}
fd, err = os.Open(nsPath)
if err != nil {
return
}
})()
wg.Wait()
if err != nil {
unix.Unmount(nsPath, unix.MNT_DETACH)
return nil, fmt.Errorf("failed to create namespace: %v", err)
}
return &netNS{file: fd, mounted: true}, nil
}
func (ns *netNS) Close() error {
if err := ns.errorIfClosed(); err != nil {
return err
}
if err := ns.file.Close(); err != nil {
return fmt.Errorf("Failed to close %q: %v", ns.file.Name(), err)
}
ns.closed = true
if ns.mounted {
if err := unix.Unmount(ns.file.Name(), unix.MNT_DETACH); err != nil {
return fmt.Errorf("Failed to unmount namespace %s: %v", ns.file.Name(), err)
}
if err := os.RemoveAll(ns.file.Name()); err != nil {
return fmt.Errorf("Failed to clean up namespace %s: %v", ns.file.Name(), err)
}
ns.mounted = false
}
return nil
}
func (ns *netNS) Set() error {
if err := ns.errorIfClosed(); err != nil {
return err
}
if _, _, err := unix.Syscall(unix.SYS_SETNS, ns.Fd(), uintptr(unix.CLONE_NEWNET), 0); err != 0 {
return fmt.Errorf("Error switching to ns %v: %v", ns.file.Name(), err)
}
return nil
}

36
pkg/ns/ns_unspecified.go Normal file
View File

@ -0,0 +1,36 @@
// Copyright 2015-2017 CNI authors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// +build !linux
package ns
import "github.com/containernetworking/cni/pkg/types"
// Returns an object representing the current OS thread's network namespace
func GetCurrentNS() (NetNS, error) {
return nil, types.NotImplementedError
}
func NewNS() (NetNS, error) {
return nil, types.NotImplementedError
}
func (ns *netNS) Close() error {
return types.NotImplementedError
}
func (ns *netNS) Set() error {
return types.NotImplementedError
}

4
pkg/types/types.go
View File

@ -16,6 +16,7 @@ package types
import (
"encoding/json"
"errors"
"fmt"
"net"
"os"
@ -178,3 +179,6 @@ func prettyPrint(obj interface{}) error {
_, err = os.Stdout.Write(data)
return err
}
// NotImplementedError is used to indicate that a method is not implemented for the given platform
var NotImplementedError = errors.New("Not Implemented")

2
vendor/github.com/vishvananda/netlink/Makefile generated vendored
View File

@ -21,7 +21,7 @@ $(call testdirs,$(DIRS)):
sudo -E go test -test.parallel 4 -timeout 60s -v github.com/vishvananda/netlink/$@
$(call fmt,$(call testdirs,$(DIRS))):
! gofmt -l $(subst fmt-,,$@)/*.go | grep ''
! gofmt -l $(subst fmt-,,$@)/*.go | grep -q .
.PHONY: fmt
fmt: $(call fmt,$(call testdirs,$(DIRS)))

15
vendor/github.com/vishvananda/netlink/addr.go generated vendored
View File

@ -10,9 +10,11 @@ import (
// include a mask, so it stores the address as a net.IPNet.
type Addr struct {
*net.IPNet
Label string
Flags int
Scope int
Label string
Flags int
Scope int
Peer *net.IPNet
Broadcast net.IP
}
// String returns $ip/$netmask $label
@ -43,3 +45,10 @@ func (a Addr) Equal(x Addr) bool {
// ignore label for comparison
return a.IP.Equal(x.IP) && sizea == sizeb
}
func (a Addr) PeerEqual(x Addr) bool {
sizea, _ := a.Peer.Mask.Size()
sizeb, _ := x.Peer.Mask.Size()
// ignore label for comparison
return a.Peer.IP.Equal(x.Peer.IP) && sizea == sizeb
}

26
vendor/github.com/vishvananda/netlink/addr_linux.go generated vendored
View File

@ -56,17 +56,27 @@ func (h *Handle) addrHandle(link Link, addr *Addr, req *nl.NetlinkRequest) error
msg.Prefixlen = uint8(prefixlen)
req.AddData(msg)
var addrData []byte
var localAddrData []byte
if family == FAMILY_V4 {
addrData = addr.IP.To4()
localAddrData = addr.IP.To4()
} else {
addrData = addr.IP.To16()
localAddrData = addr.IP.To16()
}
localData := nl.NewRtAttr(syscall.IFA_LOCAL, addrData)
localData := nl.NewRtAttr(syscall.IFA_LOCAL, localAddrData)
req.AddData(localData)
var peerAddrData []byte
if addr.Peer != nil {
if family == FAMILY_V4 {
peerAddrData = addr.Peer.IP.To4()
} else {
peerAddrData = addr.Peer.IP.To16()
}
} else {
peerAddrData = localAddrData
}
addressData := nl.NewRtAttr(syscall.IFA_ADDRESS, addrData)
addressData := nl.NewRtAttr(syscall.IFA_ADDRESS, peerAddrData)
req.AddData(addressData)
if addr.Flags != 0 {
@ -80,6 +90,10 @@ func (h *Handle) addrHandle(link Link, addr *Addr, req *nl.NetlinkRequest) error
}
}
if addr.Broadcast != nil {
req.AddData(nl.NewRtAttr(syscall.IFA_BROADCAST, addr.Broadcast))
}
if addr.Label != "" {
labelData := nl.NewRtAttr(syscall.IFA_LABEL, nl.ZeroTerminated(addr.Label))
req.AddData(labelData)
@ -161,11 +175,13 @@ func parseAddr(m []byte) (addr Addr, family, index int, err error) {
IP: attr.Value,
Mask: net.CIDRMask(int(msg.Prefixlen), 8*len(attr.Value)),
}
addr.Peer = dst
case syscall.IFA_LOCAL:
local = &net.IPNet{
IP: attr.Value,
Mask: net.CIDRMask(int(msg.Prefixlen), 8*len(attr.Value)),
}
addr.IPNet = local
case syscall.IFA_LABEL:
addr.Label = string(attr.Value[:len(attr.Value)-1])
case IFA_FLAGS:

25
vendor/github.com/vishvananda/netlink/handle_linux.go generated vendored
View File

@ -1,7 +1,9 @@
package netlink
import (
"fmt"
"syscall"
"time"
"github.com/vishvananda/netlink/nl"
"github.com/vishvananda/netns"
@ -33,6 +35,29 @@ func NewHandle(nlFamilies ...int) (*Handle, error) {
return newHandle(netns.None(), netns.None(), nlFamilies...)
}
// SetSocketTimeout sets the send and receive timeout for each socket in the
// netlink handle. Although the socket timeout has granularity of one
// microsecond, the effective granularity is floored by the kernel timer tick,
// which default value is four milliseconds.
func (h *Handle) SetSocketTimeout(to time.Duration) error {
if to < time.Microsecond {
return fmt.Errorf("invalid timeout, minimul value is %s", time.Microsecond)
}
tv := syscall.NsecToTimeval(to.Nanoseconds())
for _, sh := range h.sockets {
fd := sh.Socket.GetFd()
err := syscall.SetsockoptTimeval(fd, syscall.SOL_SOCKET, syscall.SO_RCVTIMEO, &tv)
if err != nil {
return err
}
err = syscall.SetsockoptTimeval(fd, syscall.SOL_SOCKET, syscall.SO_SNDTIMEO, &tv)
if err != nil {
return err
}
}
return nil
}
// NewHandle returns a netlink handle on the network namespace
// specified by ns. If ns=netns.None(), current network namespace
// will be assumed

218
vendor/github.com/vishvananda/netlink/handle_unspecified.go generated vendored Normal file
View File

@ -0,0 +1,218 @@
// +build !linux
package netlink
import (
"net"
"time"
"github.com/vishvananda/netns"
)
type Handle struct{}
func NewHandle(nlFamilies ...int) (*Handle, error) {
return nil, ErrNotImplemented
}
func NewHandleAt(ns netns.NsHandle, nlFamilies ...int) (*Handle, error) {
return nil, ErrNotImplemented
}
func NewHandleAtFrom(newNs, curNs netns.NsHandle) (*Handle, error) {
return nil, ErrNotImplemented
}
func (h *Handle) Delete() {}
func (h *Handle) SupportsNetlinkFamily(nlFamily int) bool {
return false
}
func (h *Handle) SetSocketTimeout(to time.Duration) error {
return ErrNotImplemented
}
func (h *Handle) SetPromiscOn(link Link) error {
return ErrNotImplemented
}
func (h *Handle) SetPromiscOff(link Link) error {
return ErrNotImplemented
}
func (h *Handle) LinkSetUp(link Link) error {
return ErrNotImplemented
}
func (h *Handle) LinkSetDown(link Link) error {
return ErrNotImplemented
}
func (h *Handle) LinkSetMTU(link Link, mtu int) error {
return ErrNotImplemented
}
func (h *Handle) LinkSetName(link Link, name string) error {
return ErrNotImplemented
}
func (h *Handle) LinkSetAlias(link Link, name string) error {
return ErrNotImplemented
}
func (h *Handle) LinkSetHardwareAddr(link Link, hwaddr net.HardwareAddr) error {
return ErrNotImplemented
}
func (h *Handle) LinkSetVfHardwareAddr(link Link, vf int, hwaddr net.HardwareAddr) error {
return ErrNotImplemented
}
func (h *Handle) LinkSetVfVlan(link Link, vf, vlan int) error {
return ErrNotImplemented
}
func (h *Handle) LinkSetVfTxRate(link Link, vf, rate int) error {
return ErrNotImplemented
}
func (h *Handle) LinkSetMaster(link Link, master *Bridge) error {
return ErrNotImplemented
}
func (h *Handle) LinkSetNoMaster(link Link) error {
return ErrNotImplemented
}
func (h *Handle) LinkSetMasterByIndex(link Link, masterIndex int) error {
return ErrNotImplemented
}
func (h *Handle) LinkSetNsPid(link Link, nspid int) error {
return ErrNotImplemented
}
func (h *Handle) LinkSetNsFd(link Link, fd int) error {
return ErrNotImplemented
}
func (h *Handle) LinkAdd(link Link) error {
return ErrNotImplemented
}
func (h *Handle) LinkDel(link Link) error {
return ErrNotImplemented
}
func (h *Handle) LinkByName(name string) (Link, error) {
return nil, ErrNotImplemented
}
func (h *Handle) LinkByAlias(alias string) (Link, error) {
return nil, ErrNotImplemented
}
func (h *Handle) LinkByIndex(index int) (Link, error) {
return nil, ErrNotImplemented
}
func (h *Handle) LinkList() ([]Link, error) {
return nil, ErrNotImplemented
}
func (h *Handle) LinkSetHairpin(link Link, mode bool) error {
return ErrNotImplemented
}
func (h *Handle) LinkSetGuard(link Link, mode bool) error {
return ErrNotImplemented
}
func (h *Handle) LinkSetFastLeave(link Link, mode bool) error {
return ErrNotImplemented
}
func (h *Handle) LinkSetLearning(link Link, mode bool) error {
return ErrNotImplemented
}
func (h *Handle) LinkSetRootBlock(link Link, mode bool) error {
return ErrNotImplemented
}
func (h *Handle) LinkSetFlood(link Link, mode bool) error {
return ErrNotImplemented
}
func (h *Handle) setProtinfoAttr(link Link, mode bool, attr int) error {
return ErrNotImplemented
}
func (h *Handle) AddrAdd(link Link, addr *Addr) error {
return ErrNotImplemented
}
func (h *Handle) AddrDel(link Link, addr *Addr) error {
return ErrNotImplemented
}
func (h *Handle) AddrList(link Link, family int) ([]Addr, error) {
return nil, ErrNotImplemented
}
func (h *Handle) ClassDel(class Class) error {
return ErrNotImplemented
}
func (h *Handle) ClassChange(class Class) error {
return ErrNotImplemented
}
func (h *Handle) ClassReplace(class Class) error {
return ErrNotImplemented
}
func (h *Handle) ClassAdd(class Class) error {
return ErrNotImplemented
}
func (h *Handle) ClassList(link Link, parent uint32) ([]Class, error) {
return nil, ErrNotImplemented
}
func (h *Handle) FilterDel(filter Filter) error {
return ErrNotImplemented
}
func (h *Handle) FilterAdd(filter Filter) error {
return ErrNotImplemented
}
func (h *Handle) FilterList(link Link, parent uint32) ([]Filter, error) {
return nil, ErrNotImplemented
}
func (h *Handle) NeighAdd(neigh *Neigh) error {
return ErrNotImplemented
}
func (h *Handle) NeighSet(neigh *Neigh) error {
return ErrNotImplemented
}
func (h *Handle) NeighAppend(neigh *Neigh) error {
return ErrNotImplemented
}
func (h *Handle) NeighDel(neigh *Neigh) error {
return ErrNotImplemented
}
func (h *Handle) NeighList(linkIndex, family int) ([]Neigh, error) {
return nil, ErrNotImplemented
}
func (h *Handle) NeighProxyList(linkIndex, family int) ([]Neigh, error) {
return nil, ErrNotImplemented
}

152
vendor/github.com/vishvananda/netlink/link.go generated vendored
View File

@ -35,6 +35,41 @@ type LinkAttrs struct {
Promisc int
Xdp *LinkXdp
EncapType string
Protinfo *Protinfo
OperState LinkOperState
}
// LinkOperState represents the values of the IFLA_OPERSTATE link
// attribute, which contains the RFC2863 state of the interface.
type LinkOperState uint8
const (
OperUnknown = iota // Status can't be determined.
OperNotPresent // Some component is missing.
OperDown // Down.
OperLowerLayerDown // Down due to state of lower layer.
OperTesting // In some test mode.
OperDormant // Not up but pending an external event.
OperUp // Up, ready to send packets.
)
func (s LinkOperState) String() string {
switch s {
case OperNotPresent:
return "not-present"
case OperDown:
return "down"
case OperLowerLayerDown:
return "lower-layer-down"
case OperTesting:
return "testing"
case OperDormant:
return "dormant"
case OperUp:
return "up"
default:
return "unknown"
}
}
// NewLinkAttrs returns LinkAttrs structure filled with default values
@ -44,10 +79,12 @@ func NewLinkAttrs() LinkAttrs {
}
}
type LinkStatistics LinkStatistics64
/*
Ref: struct rtnl_link_stats {...}
*/
type LinkStatistics struct {
type LinkStatistics32 struct {
RxPackets uint32
TxPackets uint32
RxBytes uint32
@ -73,6 +110,63 @@ type LinkStatistics struct {
TxCompressed uint32
}
func (s32 LinkStatistics32) to64() *LinkStatistics64 {
return &LinkStatistics64{
RxPackets: uint64(s32.RxPackets),
TxPackets: uint64(s32.TxPackets),
RxBytes: uint64(s32.RxBytes),
TxBytes: uint64(s32.TxBytes),
RxErrors: uint64(s32.RxErrors),
TxErrors: uint64(s32.TxErrors),
RxDropped: uint64(s32.RxDropped),
TxDropped: uint64(s32.TxDropped),
Multicast: uint64(s32.Multicast),
Collisions: uint64(s32.Collisions),
RxLengthErrors: uint64(s32.RxLengthErrors),
RxOverErrors: uint64(s32.RxOverErrors),
RxCrcErrors: uint64(s32.RxCrcErrors),
RxFrameErrors: uint64(s32.RxFrameErrors),
RxFifoErrors: uint64(s32.RxFifoErrors),
RxMissedErrors: uint64(s32.RxMissedErrors),
TxAbortedErrors: uint64(s32.TxAbortedErrors),
TxCarrierErrors: uint64(s32.TxCarrierErrors),
TxFifoErrors: uint64(s32.TxFifoErrors),
TxHeartbeatErrors: uint64(s32.TxHeartbeatErrors),
TxWindowErrors: uint64(s32.TxWindowErrors),
RxCompressed: uint64(s32.RxCompressed),
TxCompressed: uint64(s32.TxCompressed),
}
}
/*
Ref: struct rtnl_link_stats64 {...}
*/
type LinkStatistics64 struct {
RxPackets uint64
TxPackets uint64
RxBytes uint64
TxBytes uint64
RxErrors uint64
TxErrors uint64
RxDropped uint64
TxDropped uint64
Multicast uint64
Collisions uint64
RxLengthErrors uint64
RxOverErrors uint64
RxCrcErrors uint64
RxFrameErrors uint64
RxFifoErrors uint64
RxMissedErrors uint64
TxAbortedErrors uint64
TxCarrierErrors uint64
TxFifoErrors uint64
TxHeartbeatErrors uint64
TxWindowErrors uint64
RxCompressed uint64
TxCompressed uint64
}
type LinkXdp struct {
Fd int
Attached bool
@ -301,31 +395,31 @@ func StringToBondMode(s string) BondMode {
// Possible BondMode
const (
BOND_MODE_802_3AD BondMode = iota
BOND_MODE_BALANCE_RR
BOND_MODE_BALANCE_RR BondMode = iota
BOND_MODE_ACTIVE_BACKUP
BOND_MODE_BALANCE_XOR
BOND_MODE_BROADCAST
BOND_MODE_802_3AD
BOND_MODE_BALANCE_TLB
BOND_MODE_BALANCE_ALB
BOND_MODE_UNKNOWN
)
var bondModeToString = map[BondMode]string{
BOND_MODE_802_3AD: "802.3ad",
BOND_MODE_BALANCE_RR: "balance-rr",
BOND_MODE_ACTIVE_BACKUP: "active-backup",
BOND_MODE_BALANCE_XOR: "balance-xor",
BOND_MODE_BROADCAST: "broadcast",
BOND_MODE_802_3AD: "802.3ad",
BOND_MODE_BALANCE_TLB: "balance-tlb",
BOND_MODE_BALANCE_ALB: "balance-alb",
}
var StringToBondModeMap = map[string]BondMode{
"802.3ad": BOND_MODE_802_3AD,
"balance-rr": BOND_MODE_BALANCE_RR,
"active-backup": BOND_MODE_ACTIVE_BACKUP,
"balance-xor": BOND_MODE_BALANCE_XOR,
"broadcast": BOND_MODE_BROADCAST,
"802.3ad": BOND_MODE_802_3AD,
"balance-tlb": BOND_MODE_BALANCE_TLB,
"balance-alb": BOND_MODE_BALANCE_ALB,
}
@ -589,6 +683,54 @@ func (gretap *Gretap) Type() string {
return "gretap"
}
type Iptun struct {
LinkAttrs
Ttl uint8
Tos uint8
PMtuDisc uint8
Link uint32
Local net.IP
Remote net.IP
}
func (iptun *Iptun) Attrs() *LinkAttrs {
return &iptun.LinkAttrs
}
func (iptun *Iptun) Type() string {
return "ipip"
}
type Vti struct {
LinkAttrs
IKey uint32
OKey uint32
Link uint32
Local net.IP
Remote net.IP
}
func (vti *Vti) Attrs() *LinkAttrs {
return &vti.LinkAttrs
}
func (iptun *Vti) Type() string {
return "vti"
}
type Vrf struct {
LinkAttrs
Table uint32
}
func (vrf *Vrf) Attrs() *LinkAttrs {
return &vrf.LinkAttrs
}
func (vrf *Vrf) Type() string {
return "vrf"
}
// iproute2 supported devices;
// vlan | veth | vcan | dummy | ifb | macvlan | macvtap |
// bridge | bond | ipoib | ip6tnl | ipip | sit | vxlan |

214
vendor/github.com/vishvananda/netlink/link_linux.go generated vendored
View File

@ -13,7 +13,11 @@ import (
"github.com/vishvananda/netns"
)
const SizeofLinkStats = 0x5c
const (
SizeofLinkStats32 = 0x5c
SizeofLinkStats64 = 0xd8
IFLA_STATS64 = 0x17 // syscall pkg does not contain this one
)
const (
TUNTAP_MODE_TUN TuntapMode = syscall.IFF_TUN
@ -25,7 +29,6 @@ const (
TUNTAP_ONE_QUEUE TuntapFlag = syscall.IFF_ONE_QUEUE
)
var native = nl.NativeEndian()
var lookupByDump = false
var macvlanModes = [...]uint32{
@ -298,6 +301,36 @@ func (h *Handle) LinkSetVfVlan(link Link, vf, vlan int) error {
return err
}
// LinkSetVfTxRate sets the tx rate of a vf for the link.
// Equivalent to: `ip link set $link vf $vf rate $rate`
func LinkSetVfTxRate(link Link, vf, rate int) error {
return pkgHandle.LinkSetVfTxRate(link, vf, rate)
}
// LinkSetVfTxRate sets the tx rate of a vf for the link.
// Equivalent to: `ip link set $link vf $vf rate $rate`
func (h *Handle) LinkSetVfTxRate(link Link, vf, rate int) error {
base := link.Attrs()
h.ensureIndex(base)
req := h.newNetlinkRequest(syscall.RTM_SETLINK, syscall.NLM_F_ACK)
msg := nl.NewIfInfomsg(syscall.AF_UNSPEC)
msg.Index = int32(base.Index)
req.AddData(msg)
data := nl.NewRtAttr(nl.IFLA_VFINFO_LIST, nil)
info := nl.NewRtAttrChild(data, nl.IFLA_VF_INFO, nil)
vfmsg := nl.VfTxRate{
Vf: uint32(vf),
Rate: uint32(rate),
}
nl.NewRtAttrChild(info, nl.IFLA_VF_TX_RATE, vfmsg.Serialize())
req.AddData(data)
_, err := req.Execute(syscall.NETLINK_ROUTE, 0)
return err
}
// LinkSetMaster sets the master of the link device.
// Equivalent to: `ip link set $link master $master`
func LinkSetMaster(link Link, master *Bridge) error {
@ -753,6 +786,12 @@ func (h *Handle) LinkAdd(link Link) error {
}
} else if gretap, ok := link.(*Gretap); ok {
addGretapAttrs(gretap, linkInfo)
} else if iptun, ok := link.(*Iptun); ok {
addIptunAttrs(iptun, linkInfo)
} else if vti, ok := link.(*Vti); ok {
addVtiAttrs(vti, linkInfo)
} else if vrf, ok := link.(*Vrf); ok {
addVrfAttrs(vrf, linkInfo)
}
req.AddData(linkInfo)
@ -919,7 +958,7 @@ func execGetLink(req *nl.NetlinkRequest) (Link, error) {
return nil, fmt.Errorf("Link not found")
case len(msgs) == 1:
return linkDeserialize(msgs[0])
return LinkDeserialize(nil, msgs[0])
default:
return nil, fmt.Errorf("More than one link found")
@ -928,7 +967,7 @@ func execGetLink(req *nl.NetlinkRequest) (Link, error) {
// linkDeserialize deserializes a raw message received from netlink into
// a link object.
func linkDeserialize(m []byte) (Link, error) {
func LinkDeserialize(hdr *syscall.NlMsghdr, m []byte) (Link, error) {
msg := nl.DeserializeIfInfomsg(m)
attrs, err := nl.ParseRouteAttr(m[msg.Len():])
@ -940,8 +979,12 @@ func linkDeserialize(m []byte) (Link, error) {
if msg.Flags&syscall.IFF_PROMISC != 0 {
base.Promisc = 1
}
var link Link
linkType := ""
var (
link Link
stats32 []byte
stats64 []byte
linkType string
)
for _, attr := range attrs {
switch attr.Attr.Type {
case syscall.IFLA_LINKINFO:
@ -976,6 +1019,12 @@ func linkDeserialize(m []byte) (Link, error) {
link = &Macvtap{}
case "gretap":
link = &Gretap{}
case "ipip":
link = &Iptun{}
case "vti":
link = &Vti{}
case "vrf":
link = &Vrf{}
default:
link = &GenericLink{LinkType: linkType}
}
@ -999,6 +1048,12 @@ func linkDeserialize(m []byte) (Link, error) {
parseMacvtapData(link, data)
case "gretap":
parseGretapData(link, data)
case "ipip":
parseIptunData(link, data)
case "vti":
parseVtiData(link, data)
case "vrf":
parseVrfData(link, data)
}
}
}
@ -1025,15 +1080,35 @@ func linkDeserialize(m []byte) (Link, error) {
case syscall.IFLA_IFALIAS:
base.Alias = string(attr.Value[:len(attr.Value)-1])
case syscall.IFLA_STATS:
base.Statistics = parseLinkStats(attr.Value[:])
stats32 = attr.Value[:]
case IFLA_STATS64:
stats64 = attr.Value[:]
case nl.IFLA_XDP:
xdp, err := parseLinkXdp(attr.Value[:])
if err != nil {
return nil, err
}
base.Xdp = xdp
case syscall.IFLA_PROTINFO | syscall.NLA_F_NESTED:
if hdr != nil && hdr.Type == syscall.RTM_NEWLINK &&
msg.Family == syscall.AF_BRIDGE {
attrs, err := nl.ParseRouteAttr(attr.Value[:])
if err != nil {
return nil, err
}
base.Protinfo = parseProtinfo(attrs)
}
case syscall.IFLA_OPERSTATE:
base.OperState = LinkOperState(uint8(attr.Value[0]))
}
}
if stats64 != nil {
base.Statistics = parseLinkStats64(stats64)
} else if stats32 != nil {
base.Statistics = parseLinkStats32(stats32)
}
// Links that don't have IFLA_INFO_KIND are hardware devices
if link == nil {
link = &Device{}
@ -1066,7 +1141,7 @@ func (h *Handle) LinkList() ([]Link, error) {
var res []Link
for _, m := range msgs {
link, err := linkDeserialize(m)
link, err := LinkDeserialize(nil, m)
if err != nil {
return nil, err
}
@ -1115,7 +1190,7 @@ func linkSubscribe(newNs, curNs netns.NsHandle, ch chan<- LinkUpdate, done <-cha
}
for _, m := range msgs {
ifmsg := nl.DeserializeIfInfomsg(m.Data)
link, err := linkDeserialize(m.Data)
link, err := LinkDeserialize(&m.Header, m.Data)
if err != nil {
return
}
@ -1367,26 +1442,6 @@ func linkFlags(rawFlags uint32) net.Flags {
return f
}
func htonl(val uint32) []byte {
bytes := make([]byte, 4)
binary.BigEndian.PutUint32(bytes, val)
return bytes
}
func htons(val uint16) []byte {
bytes := make([]byte, 2)
binary.BigEndian.PutUint16(bytes, val)
return bytes
}
func ntohl(buf []byte) uint32 {
return binary.BigEndian.Uint32(buf)
}
func ntohs(buf []byte) uint16 {
return binary.BigEndian.Uint16(buf)
}
func addGretapAttrs(gretap *Gretap, linkInfo *nl.RtAttr) {
data := nl.NewRtAttrChild(linkInfo, nl.IFLA_INFO_DATA, nil)
@ -1460,8 +1515,12 @@ func parseGretapData(link Link, data []syscall.NetlinkRouteAttr) {
}
}
func parseLinkStats(data []byte) *LinkStatistics {
return (*LinkStatistics)(unsafe.Pointer(&data[0:SizeofLinkStats][0]))
func parseLinkStats32(data []byte) *LinkStatistics {
return (*LinkStatistics)((*LinkStatistics32)(unsafe.Pointer(&data[0:SizeofLinkStats32][0])).to64())
}
func parseLinkStats64(data []byte) *LinkStatistics {
return (*LinkStatistics)((*LinkStatistics64)(unsafe.Pointer(&data[0:SizeofLinkStats64][0])))
}
func addXdpAttrs(xdp *LinkXdp, req *nl.NetlinkRequest) {
@ -1488,3 +1547,96 @@ func parseLinkXdp(data []byte) (*LinkXdp, error) {
}
return xdp, nil
}
func addIptunAttrs(iptun *Iptun, linkInfo *nl.RtAttr) {
data := nl.NewRtAttrChild(linkInfo, nl.IFLA_INFO_DATA, nil)
ip := iptun.Local.To4()
if ip != nil {
nl.NewRtAttrChild(data, nl.IFLA_IPTUN_LOCAL, []byte(ip))
}
ip = iptun.Remote.To4()
if ip != nil {
nl.NewRtAttrChild(data, nl.IFLA_IPTUN_REMOTE, []byte(ip))
}
if iptun.Link != 0 {
nl.NewRtAttrChild(data, nl.IFLA_IPTUN_LINK, nl.Uint32Attr(iptun.Link))
}
nl.NewRtAttrChild(data, nl.IFLA_IPTUN_PMTUDISC, nl.Uint8Attr(iptun.PMtuDisc))
nl.NewRtAttrChild(data, nl.IFLA_IPTUN_TTL, nl.Uint8Attr(iptun.Ttl))
nl.NewRtAttrChild(data, nl.IFLA_IPTUN_TOS, nl.Uint8Attr(iptun.Tos))
}
func parseIptunData(link Link, data []syscall.NetlinkRouteAttr) {
iptun := link.(*Iptun)
for _, datum := range data {
switch datum.Attr.Type {
case nl.IFLA_IPTUN_LOCAL:
iptun.Local = net.IP(datum.Value[0:4])
case nl.IFLA_IPTUN_REMOTE:
iptun.Remote = net.IP(datum.Value[0:4])
case nl.IFLA_IPTUN_TTL:
iptun.Ttl = uint8(datum.Value[0])
case nl.IFLA_IPTUN_TOS:
iptun.Tos = uint8(datum.Value[0])
case nl.IFLA_IPTUN_PMTUDISC:
iptun.PMtuDisc = uint8(datum.Value[0])
}
}
}
func addVtiAttrs(vti *Vti, linkInfo *nl.RtAttr) {
data := nl.NewRtAttrChild(linkInfo, nl.IFLA_INFO_DATA, nil)
ip := vti.Local.To4()
if ip != nil {
nl.NewRtAttrChild(data, nl.IFLA_VTI_LOCAL, []byte(ip))
}
ip = vti.Remote.To4()
if ip != nil {
nl.NewRtAttrChild(data, nl.IFLA_VTI_REMOTE, []byte(ip))
}
if vti.Link != 0 {
nl.NewRtAttrChild(data, nl.IFLA_VTI_LINK, nl.Uint32Attr(vti.Link))
}
nl.NewRtAttrChild(data, nl.IFLA_VTI_IKEY, htonl(vti.IKey))
nl.NewRtAttrChild(data, nl.IFLA_VTI_OKEY, htonl(vti.OKey))
}
func parseVtiData(link Link, data []syscall.NetlinkRouteAttr) {
vti := link.(*Vti)
for _, datum := range data {
switch datum.Attr.Type {
case nl.IFLA_VTI_LOCAL:
vti.Local = net.IP(datum.Value[0:4])
case nl.IFLA_VTI_REMOTE:
vti.Remote = net.IP(datum.Value[0:4])
case nl.IFLA_VTI_IKEY:
vti.IKey = ntohl(datum.Value[0:4])
case nl.IFLA_VTI_OKEY:
vti.OKey = ntohl(datum.Value[0:4])
}
}
}
func addVrfAttrs(vrf *Vrf, linkInfo *nl.RtAttr) {
data := nl.NewRtAttrChild(linkInfo, nl.IFLA_INFO_DATA, nil)
b := make([]byte, 4)
native.PutUint32(b, uint32(vrf.Table))
nl.NewRtAttrChild(data, nl.IFLA_VRF_TABLE, b)
}
func parseVrfData(link Link, data []syscall.NetlinkRouteAttr) {
vrf := link.(*Vrf)
for _, datum := range data {
switch datum.Attr.Type {
case nl.IFLA_VRF_TABLE:
vrf.Table = native.Uint32(datum.Value[0:4])
}
}
}

10
vendor/github.com/vishvananda/netlink/netlink.go generated vendored
View File

@ -8,7 +8,15 @@
// interface that is loosly modeled on the iproute2 cli.
package netlink
import "net"
import (
"errors"
"net"
)
var (
// ErrNotImplemented is returned when a requested feature is not implemented.
ErrNotImplemented = errors.New("not implemented")
)
// ParseIPNet parses a string in ip/net format and returns a net.IPNet.
// This is valuable because addresses in netlink are often IPNets and

7
vendor/github.com/vishvananda/netlink/netlink_linux.go generated vendored
View File

@ -4,7 +4,8 @@ import "github.com/vishvananda/netlink/nl"
// Family type definitions
const (
FAMILY_ALL = nl.FAMILY_ALL
FAMILY_V4 = nl.FAMILY_V4
FAMILY_V6 = nl.FAMILY_V6
FAMILY_ALL = nl.FAMILY_ALL
FAMILY_V4 = nl.FAMILY_V4
FAMILY_V6 = nl.FAMILY_V6
FAMILY_MPLS = nl.FAMILY_MPLS
)

108
vendor/github.com/vishvananda/netlink/netlink_unspecified.go generated vendored
View File

@ -2,43 +2,109 @@
package netlink
import (
"errors"
)
import "net"
var (
ErrNotImplemented = errors.New("not implemented")
)
func LinkSetUp(link *Link) error {
func LinkSetUp(link Link) error {
return ErrNotImplemented
}
func LinkSetDown(link *Link) error {
func LinkSetDown(link Link) error {
return ErrNotImplemented
}
func LinkSetMTU(link *Link, mtu int) error {
func LinkSetMTU(link Link, mtu int) error {
return ErrNotImplemented
}
func LinkSetMaster(link *Link, master *Link) error {
func LinkSetMaster(link Link, master *Link) error {
return ErrNotImplemented
}
func LinkSetNsPid(link *Link, nspid int) error {
func LinkSetNsPid(link Link, nspid int) error {
return ErrNotImplemented
}
func LinkSetNsFd(link *Link, fd int) error {
func LinkSetNsFd(link Link, fd int) error {
return ErrNotImplemented
}
func LinkAdd(link *Link) error {
func LinkSetName(link Link, name string) error {
return ErrNotImplemented
}
func LinkDel(link *Link) error {
func LinkSetAlias(link Link, name string) error {
return ErrNotImplemented
}
func LinkSetHardwareAddr(link Link, hwaddr net.HardwareAddr) error {
return ErrNotImplemented
}
func LinkSetVfHardwareAddr(link Link, vf int, hwaddr net.HardwareAddr) error {
return ErrNotImplemented
}
func LinkSetVfVlan(link Link, vf, vlan int) error {
return ErrNotImplemented
}
func LinkSetVfTxRate(link Link, vf, rate int) error {
return ErrNotImplemented
}
func LinkSetNoMaster(link Link) error {
return ErrNotImplemented
}
func LinkSetMasterByIndex(link Link, masterIndex int) error {
return ErrNotImplemented
}
func LinkSetXdpFd(link Link, fd int) error {
return ErrNotImplemented
}
func LinkByName(name string) (Link, error) {
return nil, ErrNotImplemented
}
func LinkByAlias(alias string) (Link, error) {
return nil, ErrNotImplemented
}
func LinkByIndex(index int) (Link, error) {
return nil, ErrNotImplemented
}
func LinkSetHairpin(link Link, mode bool) error {
return ErrNotImplemented
}
func LinkSetGuard(link Link, mode bool) error {
return ErrNotImplemented
}
func LinkSetFastLeave(link Link, mode bool) error {
return ErrNotImplemented
}
func LinkSetLearning(link Link, mode bool) error {
return ErrNotImplemented
}
func LinkSetRootBlock(link Link, mode bool) error {
return ErrNotImplemented
}
func LinkSetFlood(link Link, mode bool) error {
return ErrNotImplemented
}
func LinkAdd(link Link) error {
return ErrNotImplemented
}
func LinkDel(link Link) error {
return ErrNotImplemented
}
@ -70,15 +136,15 @@ func LinkList() ([]Link, error) {
return nil, ErrNotImplemented
}
func AddrAdd(link *Link, addr *Addr) error {
func AddrAdd(link Link, addr *Addr) error {
return ErrNotImplemented
}
func AddrDel(link *Link, addr *Addr) error {
func AddrDel(link Link, addr *Addr) error {
return ErrNotImplemented
}
func AddrList(link *Link, family int) ([]Addr, error) {
func AddrList(link Link, family int) ([]Addr, error) {
return nil, ErrNotImplemented
}
@ -90,7 +156,7 @@ func RouteDel(route *Route) error {
return ErrNotImplemented
}
func RouteList(link *Link, family int) ([]Route, error) {
func RouteList(link Link, family int) ([]Route, error) {
return nil, ErrNotImplemented
}
@ -141,3 +207,7 @@ func NeighList(linkIndex, family int) ([]Neigh, error) {
func NeighDeserialize(m []byte) (*Neigh, error) {
return nil, ErrNotImplemented
}
func SocketGet(local, remote net.Addr) (*Socket, error) {
return nil, ErrNotImplemented
}

34
vendor/github.com/vishvananda/netlink/nl/link_linux.go generated vendored
View File

@ -418,3 +418,37 @@ const (
IFLA_XDP_ATTACHED /* read-only bool indicating if prog is attached */
IFLA_XDP_MAX = IFLA_XDP_ATTACHED
)
const (
IFLA_IPTUN_UNSPEC = iota
IFLA_IPTUN_LINK
IFLA_IPTUN_LOCAL
IFLA_IPTUN_REMOTE
IFLA_IPTUN_TTL
IFLA_IPTUN_TOS
IFLA_IPTUN_ENCAP_LIMIT
IFLA_IPTUN_FLOWINFO
IFLA_IPTUN_FLAGS
IFLA_IPTUN_PROTO
IFLA_IPTUN_PMTUDISC
IFLA_IPTUN_6RD_PREFIX
IFLA_IPTUN_6RD_RELAY_PREFIX
IFLA_IPTUN_6RD_PREFIXLEN
IFLA_IPTUN_6RD_RELAY_PREFIXLEN
IFLA_IPTUN_MAX = IFLA_IPTUN_6RD_RELAY_PREFIXLEN
)
const (
IFLA_VTI_UNSPEC = iota
IFLA_VTI_LINK
IFLA_VTI_IKEY
IFLA_VTI_OKEY
IFLA_VTI_LOCAL
IFLA_VTI_REMOTE
IFLA_VTI_MAX = IFLA_VTI_REMOTE
)
const (
IFLA_VRF_UNSPEC = iota
IFLA_VRF_TABLE
)

36
vendor/github.com/vishvananda/netlink/nl/mpls_linux.go generated vendored Normal file
View File

@ -0,0 +1,36 @@
package nl
import "encoding/binary"
const (
MPLS_LS_LABEL_SHIFT = 12
MPLS_LS_S_SHIFT = 8
)
func EncodeMPLSStack(labels ...int) []byte {
b := make([]byte, 4*len(labels))
for idx, label := range labels {
l := label << MPLS_LS_LABEL_SHIFT
if idx == len(labels)-1 {
l |= 1 << MPLS_LS_S_SHIFT
}
binary.BigEndian.PutUint32(b[idx*4:], uint32(l))
}
return b
}
func DecodeMPLSStack(buf []byte) []int {
if len(buf)%4 != 0 {
return nil
}
stack := make([]int, 0, len(buf)/4)
for len(buf) > 0 {
l := binary.BigEndian.Uint32(buf[:4])
buf = buf[4:]
stack = append(stack, int(l)>>MPLS_LS_LABEL_SHIFT)
if (l>>MPLS_LS_S_SHIFT)&1 > 0 {
break
}
}
return stack
}

14
vendor/github.com/vishvananda/netlink/nl/nl_linux.go generated vendored
View File

@ -17,9 +17,10 @@ import (
const (
// Family type definitions
FAMILY_ALL = syscall.AF_UNSPEC
FAMILY_V4 = syscall.AF_INET
FAMILY_V6 = syscall.AF_INET6
FAMILY_ALL = syscall.AF_UNSPEC
FAMILY_V4 = syscall.AF_INET
FAMILY_V6 = syscall.AF_INET6
FAMILY_MPLS = AF_MPLS
)
// SupportedNlFamilies contains the list of netlink families this netlink package supports
@ -656,6 +657,13 @@ func Uint32Attr(v uint32) []byte {
return bytes
}
func Uint64Attr(v uint64) []byte {
native := NativeEndian()
bytes := make([]byte, 8)
native.PutUint64(bytes, v)
return bytes
}
func ParseRouteAttr(b []byte) ([]syscall.NetlinkRouteAttr, error) {
var attrs []syscall.NetlinkRouteAttr
for len(b) >= syscall.SizeofRtAttr {

11
vendor/github.com/vishvananda/netlink/nl/nl_unspecified.go generated vendored Normal file
View File

@ -0,0 +1,11 @@
// +build !linux
package nl
import "encoding/binary"
var SupportedNlFamilies = []int{}
func NativeEndian() binary.ByteOrder {
return nil
}

30
vendor/github.com/vishvananda/netlink/nl/route_linux.go generated vendored
View File

@ -43,12 +43,38 @@ func (msg *RtMsg) Serialize() []byte {
type RtNexthop struct {
syscall.RtNexthop
Children []NetlinkRequestData
}
func DeserializeRtNexthop(b []byte) *RtNexthop {
return (*RtNexthop)(unsafe.Pointer(&b[0:syscall.SizeofRtNexthop][0]))
}
func (msg *RtNexthop) Serialize() []byte {
return (*(*[syscall.SizeofRtNexthop]byte)(unsafe.Pointer(msg)))[:]
func (msg *RtNexthop) Len() int {
if len(msg.Children) == 0 {
return syscall.SizeofRtNexthop
}
l := 0
for _, child := range msg.Children {
l += rtaAlignOf(child.Len())
}
l += syscall.SizeofRtNexthop
return rtaAlignOf(l)
}
func (msg *RtNexthop) Serialize() []byte {
length := msg.Len()
msg.RtNexthop.Len = uint16(length)
buf := make([]byte, length)
copy(buf, (*(*[syscall.SizeofRtNexthop]byte)(unsafe.Pointer(msg)))[:])
next := rtaAlignOf(syscall.SizeofRtNexthop)
if len(msg.Children) > 0 {
for _, child := range msg.Children {
childBuf := child.Serialize()
copy(buf[next:], childBuf)
next += rtaAlignOf(len(childBuf))
}
}
return buf
}

31
vendor/github.com/vishvananda/netlink/nl/syscall.go generated vendored
View File

@ -35,3 +35,34 @@ const (
FR_ACT_UNREACHABLE /* Drop with ENETUNREACH */
FR_ACT_PROHIBIT /* Drop with EACCES */
)
// socket diags related
const (
SOCK_DIAG_BY_FAMILY = 20 /* linux.sock_diag.h */
TCPDIAG_NOCOOKIE = 0xFFFFFFFF /* TCPDIAG_NOCOOKIE in net/ipv4/tcp_diag.h*/
)
const (
AF_MPLS = 28
)
const (
RTA_NEWDST = 0x13
RTA_ENCAP_TYPE = 0x15
RTA_ENCAP = 0x16
)
// RTA_ENCAP subtype
const (
MPLS_IPTUNNEL_UNSPEC = iota
MPLS_IPTUNNEL_DST
)
// light weight tunnel encap types
const (
LWTUNNEL_ENCAP_NONE = iota
LWTUNNEL_ENCAP_MPLS
LWTUNNEL_ENCAP_IP
LWTUNNEL_ENCAP_ILA
LWTUNNEL_ENCAP_IP6
)

72
vendor/github.com/vishvananda/netlink/nl/xfrm_linux.go generated vendored
View File

@ -11,34 +11,40 @@ const (
XFRM_INF = ^uint64(0)
)
type XfrmMsgType uint8
type XfrmMsg interface {
Type() XfrmMsgType
}
// Message Types
const (
XFRM_MSG_BASE = 0x10
XFRM_MSG_NEWSA = 0x10
XFRM_MSG_DELSA = 0x11
XFRM_MSG_GETSA = 0x12
XFRM_MSG_NEWPOLICY = 0x13
XFRM_MSG_DELPOLICY = 0x14
XFRM_MSG_GETPOLICY = 0x15
XFRM_MSG_ALLOCSPI = 0x16
XFRM_MSG_ACQUIRE = 0x17
XFRM_MSG_EXPIRE = 0x18
XFRM_MSG_UPDPOLICY = 0x19
XFRM_MSG_UPDSA = 0x1a
XFRM_MSG_POLEXPIRE = 0x1b
XFRM_MSG_FLUSHSA = 0x1c
XFRM_MSG_FLUSHPOLICY = 0x1d
XFRM_MSG_NEWAE = 0x1e
XFRM_MSG_GETAE = 0x1f
XFRM_MSG_REPORT = 0x20
XFRM_MSG_MIGRATE = 0x21
XFRM_MSG_NEWSADINFO = 0x22
XFRM_MSG_GETSADINFO = 0x23
XFRM_MSG_NEWSPDINFO = 0x24
XFRM_MSG_GETSPDINFO = 0x25
XFRM_MSG_MAPPING = 0x26
XFRM_MSG_MAX = 0x26
XFRM_NR_MSGTYPES = 0x17
XFRM_MSG_BASE XfrmMsgType = 0x10
XFRM_MSG_NEWSA = 0x10
XFRM_MSG_DELSA = 0x11
XFRM_MSG_GETSA = 0x12
XFRM_MSG_NEWPOLICY = 0x13
XFRM_MSG_DELPOLICY = 0x14
XFRM_MSG_GETPOLICY = 0x15
XFRM_MSG_ALLOCSPI = 0x16
XFRM_MSG_ACQUIRE = 0x17
XFRM_MSG_EXPIRE = 0x18
XFRM_MSG_UPDPOLICY = 0x19
XFRM_MSG_UPDSA = 0x1a
XFRM_MSG_POLEXPIRE = 0x1b
XFRM_MSG_FLUSHSA = 0x1c
XFRM_MSG_FLUSHPOLICY = 0x1d
XFRM_MSG_NEWAE = 0x1e
XFRM_MSG_GETAE = 0x1f
XFRM_MSG_REPORT = 0x20
XFRM_MSG_MIGRATE = 0x21
XFRM_MSG_NEWSADINFO = 0x22
XFRM_MSG_GETSADINFO = 0x23
XFRM_MSG_NEWSPDINFO = 0x24
XFRM_MSG_GETSPDINFO = 0x25
XFRM_MSG_MAPPING = 0x26
XFRM_MSG_MAX = 0x26
XFRM_NR_MSGTYPES = 0x17
)
// Attribute types
@ -81,6 +87,20 @@ const (
SizeofXfrmMark = 0x08
)
// Netlink groups
const (
XFRMNLGRP_NONE = 0x0
XFRMNLGRP_ACQUIRE = 0x1
XFRMNLGRP_EXPIRE = 0x2
XFRMNLGRP_SA = 0x3
XFRMNLGRP_POLICY = 0x4
XFRMNLGRP_AEVENTS = 0x5
XFRMNLGRP_REPORT = 0x6
XFRMNLGRP_MIGRATE = 0x7
XFRMNLGRP_MAPPING = 0x8
__XFRMNLGRP_MAX = 0x9
)
// typedef union {
// __be32 a4;
// __be32 a6[4];

32
vendor/github.com/vishvananda/netlink/nl/xfrm_monitor_linux.go generated vendored Normal file
View File

@ -0,0 +1,32 @@
package nl
import (
"unsafe"
)
const (
SizeofXfrmUserExpire = 0xe8
)
// struct xfrm_user_expire {
// struct xfrm_usersa_info state;
// __u8 hard;
// };
type XfrmUserExpire struct {
XfrmUsersaInfo XfrmUsersaInfo
Hard uint8
Pad [7]byte
}
func (msg *XfrmUserExpire) Len() int {
return SizeofXfrmUserExpire
}
func DeserializeXfrmUserExpire(b []byte) *XfrmUserExpire {
return (*XfrmUserExpire)(unsafe.Pointer(&b[0:SizeofXfrmUserExpire][0]))
}
func (msg *XfrmUserExpire) Serialize() []byte {
return (*(*[SizeofXfrmUserExpire]byte)(unsafe.Pointer(msg)))[:]
}

78
vendor/github.com/vishvananda/netlink/nl/xfrm_state_linux.go generated vendored
View File

@ -5,14 +5,27 @@ import (
)
const (
SizeofXfrmUsersaId = 0x18
SizeofXfrmStats = 0x0c
SizeofXfrmUsersaInfo = 0xe0
SizeofXfrmAlgo = 0x44
SizeofXfrmAlgoAuth = 0x48
SizeofXfrmAlgoAEAD = 0x48
SizeofXfrmEncapTmpl = 0x18
SizeofXfrmUsersaFlush = 0x8
SizeofXfrmUsersaId = 0x18
SizeofXfrmStats = 0x0c
SizeofXfrmUsersaInfo = 0xe0
SizeofXfrmUserSpiInfo = 0xe8
SizeofXfrmAlgo = 0x44
SizeofXfrmAlgoAuth = 0x48
SizeofXfrmAlgoAEAD = 0x48
SizeofXfrmEncapTmpl = 0x18
SizeofXfrmUsersaFlush = 0x8
SizeofXfrmReplayStateEsn = 0x18
)
const (
XFRM_STATE_NOECN = 1
XFRM_STATE_DECAP_DSCP = 2
XFRM_STATE_NOPMTUDISC = 4
XFRM_STATE_WILDRECV = 8
XFRM_STATE_ICMP = 16
XFRM_STATE_AF_UNSPEC = 32
XFRM_STATE_ALIGN4 = 64
XFRM_STATE_ESN = 128
)
// struct xfrm_usersa_id {
@ -120,6 +133,30 @@ func (msg *XfrmUsersaInfo) Serialize() []byte {
return (*(*[SizeofXfrmUsersaInfo]byte)(unsafe.Pointer(msg)))[:]
}
// struct xfrm_userspi_info {
// struct xfrm_usersa_info info;
// __u32 min;
// __u32 max;
// };
type XfrmUserSpiInfo struct {
XfrmUsersaInfo XfrmUsersaInfo
Min uint32
Max uint32
}
func (msg *XfrmUserSpiInfo) Len() int {
return SizeofXfrmUserSpiInfo
}
func DeserializeXfrmUserSpiInfo(b []byte) *XfrmUserSpiInfo {
return (*XfrmUserSpiInfo)(unsafe.Pointer(&b[0:SizeofXfrmUserSpiInfo][0]))
}
func (msg *XfrmUserSpiInfo) Serialize() []byte {
return (*(*[SizeofXfrmUserSpiInfo]byte)(unsafe.Pointer(msg)))[:]
}
// struct xfrm_algo {
// char alg_name[64];
// unsigned int alg_key_len; /* in bits */
@ -270,3 +307,28 @@ func DeserializeXfrmUsersaFlush(b []byte) *XfrmUsersaFlush {
func (msg *XfrmUsersaFlush) Serialize() []byte {
return (*(*[SizeofXfrmUsersaFlush]byte)(unsafe.Pointer(msg)))[:]
}
// struct xfrm_replay_state_esn {
// unsigned int bmp_len;
// __u32 oseq;
// __u32 seq;
// __u32 oseq_hi;
// __u32 seq_hi;
// __u32 replay_window;
// __u32 bmp[0];
// };
type XfrmReplayStateEsn struct {
BmpLen uint32
OSeq uint32
Seq uint32
OSeqHi uint32
SeqHi uint32
ReplayWindow uint32
Bmp []uint32
}
func (msg *XfrmReplayStateEsn) Serialize() []byte {
// We deliberately do not pass Bmp, as it gets set by the kernel.
return (*(*[SizeofXfrmReplayStateEsn]byte)(unsafe.Pointer(msg)))[:]
}

32
vendor/github.com/vishvananda/netlink/order.go generated vendored Normal file
View File

@ -0,0 +1,32 @@
package netlink
import (
"encoding/binary"
"github.com/vishvananda/netlink/nl"
)
var (
native = nl.NativeEndian()
networkOrder = binary.BigEndian
)
func htonl(val uint32) []byte {
bytes := make([]byte, 4)
binary.BigEndian.PutUint32(bytes, val)
return bytes
}
func htons(val uint16) []byte {
bytes := make([]byte, 2)
binary.BigEndian.PutUint16(bytes, val)
return bytes
}
func ntohl(buf []byte) uint32 {
return binary.BigEndian.Uint32(buf)
}
func ntohs(buf []byte) uint16 {
return binary.BigEndian.Uint16(buf)
}

5
vendor/github.com/vishvananda/netlink/protinfo.go generated vendored
View File

@ -46,8 +46,5 @@ func boolToByte(x bool) []byte {
}
func byteToBool(x byte) bool {
if uint8(x) != 0 {
return true
}
return false
return uint8(x) != 0
}

40
vendor/github.com/vishvananda/netlink/protinfo_linux.go generated vendored
View File

@ -40,25 +40,31 @@ func (h *Handle) LinkGetProtinfo(link Link) (Protinfo, error) {
if err != nil {
return pi, err
}
var pi Protinfo
for _, info := range infos {
switch info.Attr.Type {
case nl.IFLA_BRPORT_MODE:
pi.Hairpin = byteToBool(info.Value[0])
case nl.IFLA_BRPORT_GUARD:
pi.Guard = byteToBool(info.Value[0])
case nl.IFLA_BRPORT_FAST_LEAVE:
pi.FastLeave = byteToBool(info.Value[0])
case nl.IFLA_BRPORT_PROTECT:
pi.RootBlock = byteToBool(info.Value[0])
case nl.IFLA_BRPORT_LEARNING:
pi.Learning = byteToBool(info.Value[0])
case nl.IFLA_BRPORT_UNICAST_FLOOD:
pi.Flood = byteToBool(info.Value[0])
}
}
pi = *parseProtinfo(infos)
return pi, nil
}
}
return pi, fmt.Errorf("Device with index %d not found", base.Index)
}
func parseProtinfo(infos []syscall.NetlinkRouteAttr) *Protinfo {
var pi Protinfo
for _, info := range infos {
switch info.Attr.Type {
case nl.IFLA_BRPORT_MODE:
pi.Hairpin = byteToBool(info.Value[0])
case nl.IFLA_BRPORT_GUARD:
pi.Guard = byteToBool(info.Value[0])
case nl.IFLA_BRPORT_FAST_LEAVE:
pi.FastLeave = byteToBool(info.Value[0])
case nl.IFLA_BRPORT_PROTECT:
pi.RootBlock = byteToBool(info.Value[0])
case nl.IFLA_BRPORT_LEARNING:
pi.Learning = byteToBool(info.Value[0])
case nl.IFLA_BRPORT_UNICAST_FLOOD:
pi.Flood = byteToBool(info.Value[0])
}
}
return &pi
}

9
vendor/github.com/vishvananda/netlink/qdisc.go generated vendored
View File

@ -187,10 +187,11 @@ func (qdisc *Netem) Type() string {
// Tbf is a classless qdisc that rate limits based on tokens
type Tbf struct {
QdiscAttrs
// TODO: handle 64bit rate properly
Rate uint64
Limit uint32
Buffer uint32
Rate uint64
Limit uint32
Buffer uint32
Peakrate uint64
Minburst uint32
// TODO: handle other settings
}

18
vendor/github.com/vishvananda/netlink/qdisc_linux.go generated vendored
View File

@ -168,11 +168,20 @@ func qdiscPayload(req *nl.NetlinkRequest, qdisc Qdisc) error {
options = nl.NewRtAttr(nl.TCA_OPTIONS, tcmap.Serialize())
} else if tbf, ok := qdisc.(*Tbf); ok {
opt := nl.TcTbfQopt{}
// TODO: handle rate > uint32
opt.Rate.Rate = uint32(tbf.Rate)
opt.Peakrate.Rate = uint32(tbf.Peakrate)
opt.Limit = tbf.Limit
opt.Buffer = tbf.Buffer
nl.NewRtAttrChild(options, nl.TCA_TBF_PARMS, opt.Serialize())
if tbf.Rate >= uint64(1<<32) {
nl.NewRtAttrChild(options, nl.TCA_TBF_RATE64, nl.Uint64Attr(tbf.Rate))
}
if tbf.Peakrate >= uint64(1<<32) {
nl.NewRtAttrChild(options, nl.TCA_TBF_PRATE64, nl.Uint64Attr(tbf.Peakrate))
}
if tbf.Peakrate > 0 {
nl.NewRtAttrChild(options, nl.TCA_TBF_PBURST, nl.Uint32Attr(tbf.Minburst))
}
} else if htb, ok := qdisc.(*Htb); ok {
opt := nl.TcHtbGlob{}
opt.Version = htb.Version
@ -418,10 +427,15 @@ func parseTbfData(qdisc Qdisc, data []syscall.NetlinkRouteAttr) error {
case nl.TCA_TBF_PARMS:
opt := nl.DeserializeTcTbfQopt(datum.Value)
tbf.Rate = uint64(opt.Rate.Rate)
tbf.Peakrate = uint64(opt.Peakrate.Rate)
tbf.Limit = opt.Limit
tbf.Buffer = opt.Buffer
case nl.TCA_TBF_RATE64:
tbf.Rate = native.Uint64(datum.Value[0:4])
tbf.Rate = native.Uint64(datum.Value[0:8])
case nl.TCA_TBF_PRATE64:
tbf.Peakrate = native.Uint64(datum.Value[0:8])
case nl.TCA_TBF_PBURST:
tbf.Minburst = native.Uint32(datum.Value[0:4])
}
}
return nil

62
vendor/github.com/vishvananda/netlink/route.go generated vendored
View File

@ -3,6 +3,7 @@ package netlink
import (
"fmt"
"net"
"strings"
)
// Scope is an enum representing a route scope.
@ -10,6 +11,20 @@ type Scope uint8
type NextHopFlag int
type Destination interface {
Family() int
Decode([]byte) error
Encode() ([]byte, error)
String() string
}
type Encap interface {
Type() int
Decode([]byte) error
Encode() ([]byte, error)
String() string
}
// Route represents a netlink route.
type Route struct {
LinkIndex int
@ -25,15 +40,36 @@ type Route struct {
Type int
Tos int
Flags int
MPLSDst *int
NewDst Destination
Encap Encap
}
func (r Route) String() string {
if len(r.MultiPath) > 0 {
return fmt.Sprintf("{Dst: %s Src: %s Gw: %s Flags: %s Table: %d}", r.Dst,
r.Src, r.MultiPath, r.ListFlags(), r.Table)
elems := []string{}
if len(r.MultiPath) == 0 {
elems = append(elems, fmt.Sprintf("Ifindex: %d", r.LinkIndex))
}
return fmt.Sprintf("{Ifindex: %d Dst: %s Src: %s Gw: %s Flags: %s Table: %d}", r.LinkIndex, r.Dst,
r.Src, r.Gw, r.ListFlags(), r.Table)
if r.MPLSDst != nil {
elems = append(elems, fmt.Sprintf("Dst: %d", r.MPLSDst))
} else {
elems = append(elems, fmt.Sprintf("Dst: %s", r.Dst))
}
if r.NewDst != nil {
elems = append(elems, fmt.Sprintf("NewDst: %s", r.NewDst))
}
if r.Encap != nil {
elems = append(elems, fmt.Sprintf("Encap: %s", r.Encap))
}
elems = append(elems, fmt.Sprintf("Src: %s", r.Src))
if len(r.MultiPath) > 0 {
elems = append(elems, fmt.Sprintf("Gw: %s", r.MultiPath))
} else {
elems = append(elems, fmt.Sprintf("Gw: %s", r.Gw))
}
elems = append(elems, fmt.Sprintf("Flags: %s", r.ListFlags()))
elems = append(elems, fmt.Sprintf("Table: %d", r.Table))
return fmt.Sprintf("{%s}", strings.Join(elems, " "))
}
func (r *Route) SetFlag(flag NextHopFlag) {
@ -59,8 +95,22 @@ type NexthopInfo struct {
LinkIndex int
Hops int
Gw net.IP
Flags int
NewDst Destination
Encap Encap
}
func (n *NexthopInfo) String() string {
return fmt.Sprintf("{Ifindex: %d Weight: %d, Gw: %s}", n.LinkIndex, n.Hops+1, n.Gw)
elems := []string{}
elems = append(elems, fmt.Sprintf("Ifindex: %d", n.LinkIndex))
if n.NewDst != nil {
elems = append(elems, fmt.Sprintf("NewDst: %s", n.NewDst))
}
if n.Encap != nil {
elems = append(elems, fmt.Sprintf("Encap: %s", n.Encap))
}
elems = append(elems, fmt.Sprintf("Weight: %d", n.Hops+1))
elems = append(elems, fmt.Sprintf("Gw: %d", n.Gw))
elems = append(elems, fmt.Sprintf("Flags: %s", n.ListFlags()))
return fmt.Sprintf("{%s}", strings.Join(elems, " "))
}

257
vendor/github.com/vishvananda/netlink/route_linux.go generated vendored
View File

@ -3,6 +3,7 @@ package netlink
import (
"fmt"
"net"
"strings"
"syscall"
"github.com/vishvananda/netlink/nl"
@ -42,16 +43,92 @@ var testFlags = []flagString{
{f: FLAG_PERVASIVE, s: "pervasive"},
}
func (r *Route) ListFlags() []string {
func listFlags(flag int) []string {
var flags []string
for _, tf := range testFlags {
if r.Flags&int(tf.f) != 0 {
if flag&int(tf.f) != 0 {
flags = append(flags, tf.s)
}
}
return flags
}
func (r *Route) ListFlags() []string {
return listFlags(r.Flags)
}
func (n *NexthopInfo) ListFlags() []string {
return listFlags(n.Flags)
}
type MPLSDestination struct {
Labels []int
}
func (d *MPLSDestination) Family() int {
return nl.FAMILY_MPLS
}
func (d *MPLSDestination) Decode(buf []byte) error {
d.Labels = nl.DecodeMPLSStack(buf)
return nil
}
func (d *MPLSDestination) Encode() ([]byte, error) {
return nl.EncodeMPLSStack(d.Labels...), nil
}
func (d *MPLSDestination) String() string {
s := make([]string, 0, len(d.Labels))
for _, l := range d.Labels {
s = append(s, fmt.Sprintf("%d", l))
}
return strings.Join(s, "/")
}
type MPLSEncap struct {
Labels []int
}
func (e *MPLSEncap) Type() int {
return nl.LWTUNNEL_ENCAP_MPLS
}
func (e *MPLSEncap) Decode(buf []byte) error {
if len(buf) < 4 {
return fmt.Errorf("Lack of bytes")
}
native := nl.NativeEndian()
l := native.Uint16(buf)
if len(buf) < int(l) {
return fmt.Errorf("Lack of bytes")
}
buf = buf[:l]
typ := native.Uint16(buf[2:])
if typ != nl.MPLS_IPTUNNEL_DST {
return fmt.Errorf("Unknown MPLS Encap Type: %d", typ)
}
e.Labels = nl.DecodeMPLSStack(buf[4:])
return nil
}
func (e *MPLSEncap) Encode() ([]byte, error) {
s := nl.EncodeMPLSStack(e.Labels...)
native := nl.NativeEndian()
hdr := make([]byte, 4)
native.PutUint16(hdr, uint16(len(s)+4))
native.PutUint16(hdr[2:], nl.MPLS_IPTUNNEL_DST)
return append(hdr, s...), nil
}
func (e *MPLSEncap) String() string {
s := make([]string, 0, len(e.Labels))
for _, l := range e.Labels {
s = append(s, fmt.Sprintf("%d", l))
}
return strings.Join(s, "/")
}
// RouteAdd will add a route to the system.
// Equivalent to: `ip route add $route`
func RouteAdd(route *Route) error {
@ -61,7 +138,22 @@ func RouteAdd(route *Route) error {
// RouteAdd will add a route to the system.
// Equivalent to: `ip route add $route`
func (h *Handle) RouteAdd(route *Route) error {
req := h.newNetlinkRequest(syscall.RTM_NEWROUTE, syscall.NLM_F_CREATE|syscall.NLM_F_EXCL|syscall.NLM_F_ACK)
flags := syscall.NLM_F_CREATE | syscall.NLM_F_EXCL | syscall.NLM_F_ACK
req := h.newNetlinkRequest(syscall.RTM_NEWROUTE, flags)
return h.routeHandle(route, req, nl.NewRtMsg())
}
// RouteReplace will add a route to the system.
// Equivalent to: `ip route replace $route`
func RouteReplace(route *Route) error {
return pkgHandle.RouteReplace(route)
}
// RouteReplace will add a route to the system.
// Equivalent to: `ip route replace $route`
func (h *Handle) RouteReplace(route *Route) error {
flags := syscall.NLM_F_CREATE | syscall.NLM_F_REPLACE | syscall.NLM_F_ACK
req := h.newNetlinkRequest(syscall.RTM_NEWROUTE, flags)
return h.routeHandle(route, req, nl.NewRtMsg())
}
@ -79,7 +171,7 @@ func (h *Handle) RouteDel(route *Route) error {
}
func (h *Handle) routeHandle(route *Route, req *nl.NetlinkRequest, msg *nl.RtMsg) error {
if (route.Dst == nil || route.Dst.IP == nil) && route.Src == nil && route.Gw == nil {
if (route.Dst == nil || route.Dst.IP == nil) && route.Src == nil && route.Gw == nil && route.MPLSDst == nil {
return fmt.Errorf("one of Dst.IP, Src, or Gw must not be nil")
}
@ -98,6 +190,33 @@ func (h *Handle) routeHandle(route *Route, req *nl.NetlinkRequest, msg *nl.RtMsg
dstData = route.Dst.IP.To16()
}
rtAttrs = append(rtAttrs, nl.NewRtAttr(syscall.RTA_DST, dstData))
} else if route.MPLSDst != nil {
family = nl.FAMILY_MPLS
msg.Dst_len = uint8(20)
msg.Type = syscall.RTN_UNICAST
rtAttrs = append(rtAttrs, nl.NewRtAttr(syscall.RTA_DST, nl.EncodeMPLSStack(*route.MPLSDst)))
}
if route.NewDst != nil {
if family != -1 && family != route.NewDst.Family() {
return fmt.Errorf("new destination and destination are not the same address family")
}
buf, err := route.NewDst.Encode()
if err != nil {
return err
}
rtAttrs = append(rtAttrs, nl.NewRtAttr(nl.RTA_NEWDST, buf))
}
if route.Encap != nil {
buf := make([]byte, 2)
native.PutUint16(buf, uint16(route.Encap.Type()))
rtAttrs = append(rtAttrs, nl.NewRtAttr(nl.RTA_ENCAP_TYPE, buf))
buf, err := route.Encap.Encode()
if err != nil {
return err
}
rtAttrs = append(rtAttrs, nl.NewRtAttr(nl.RTA_ENCAP, buf))
}
if route.Src != nil {
@ -138,26 +257,43 @@ func (h *Handle) routeHandle(route *Route, req *nl.NetlinkRequest, msg *nl.RtMsg
RtNexthop: syscall.RtNexthop{
Hops: uint8(nh.Hops),
Ifindex: int32(nh.LinkIndex),
Len: uint16(syscall.SizeofRtNexthop),
Flags: uint8(nh.Flags),
},
}
var gwData []byte
children := []nl.NetlinkRequestData{}
if nh.Gw != nil {
gwFamily := nl.GetIPFamily(nh.Gw)
if family != -1 && family != gwFamily {
return fmt.Errorf("gateway, source, and destination ip are not the same IP family")
}
var gw *nl.RtAttr
if gwFamily == FAMILY_V4 {
gw = nl.NewRtAttr(syscall.RTA_GATEWAY, []byte(nh.Gw.To4()))
children = append(children, nl.NewRtAttr(syscall.RTA_GATEWAY, []byte(nh.Gw.To4())))
} else {
gw = nl.NewRtAttr(syscall.RTA_GATEWAY, []byte(nh.Gw.To16()))
children = append(children, nl.NewRtAttr(syscall.RTA_GATEWAY, []byte(nh.Gw.To16())))
}
gwData = gw.Serialize()
rtnh.Len += uint16(len(gwData))
}
if nh.NewDst != nil {
if family != -1 && family != nh.NewDst.Family() {
return fmt.Errorf("new destination and destination are not the same address family")
}
buf, err := nh.NewDst.Encode()
if err != nil {
return err
}
children = append(children, nl.NewRtAttr(nl.RTA_NEWDST, buf))
}
if nh.Encap != nil {
buf := make([]byte, 2)
native.PutUint16(buf, uint16(nh.Encap.Type()))
rtAttrs = append(rtAttrs, nl.NewRtAttr(nl.RTA_ENCAP_TYPE, buf))
buf, err := nh.Encap.Encode()
if err != nil {
return err
}
children = append(children, nl.NewRtAttr(nl.RTA_ENCAP, buf))
}
rtnh.Children = children
buf = append(buf, rtnh.Serialize()...)
buf = append(buf, gwData...)
}
rtAttrs = append(rtAttrs, nl.NewRtAttr(syscall.RTA_MULTIPATH, buf))
}
@ -283,14 +419,22 @@ func (h *Handle) RouteListFiltered(family int, filter *Route, filterMask uint64)
continue
case filterMask&RT_FILTER_SRC != 0 && !route.Src.Equal(filter.Src):
continue
case filterMask&RT_FILTER_DST != 0 && filter.Dst != nil:
if route.Dst == nil {
continue
}
aMaskLen, aMaskBits := route.Dst.Mask.Size()
bMaskLen, bMaskBits := filter.Dst.Mask.Size()
if !(route.Dst.IP.Equal(filter.Dst.IP) && aMaskLen == bMaskLen && aMaskBits == bMaskBits) {
continue
case filterMask&RT_FILTER_DST != 0:
if filter.MPLSDst == nil || route.MPLSDst == nil || (*filter.MPLSDst) != (*route.MPLSDst) {
if filter.Dst == nil {
if route.Dst != nil {
continue
}
} else {
if route.Dst == nil {
continue
}
aMaskLen, aMaskBits := route.Dst.Mask.Size()
bMaskLen, bMaskBits := filter.Dst.Mask.Size()
if !(route.Dst.IP.Equal(filter.Dst.IP) && aMaskLen == bMaskLen && aMaskBits == bMaskBits) {
continue
}
}
}
}
}
@ -316,6 +460,7 @@ func deserializeRoute(m []byte) (Route, error) {
}
native := nl.NativeEndian()
var encap, encapType syscall.NetlinkRouteAttr
for _, attr := range attrs {
switch attr.Attr.Type {
case syscall.RTA_GATEWAY:
@ -323,9 +468,17 @@ func deserializeRoute(m []byte) (Route, error) {
case syscall.RTA_PREFSRC:
route.Src = net.IP(attr.Value)
case syscall.RTA_DST:
route.Dst = &net.IPNet{
IP: attr.Value,
Mask: net.CIDRMask(int(msg.Dst_len), 8*len(attr.Value)),
if msg.Family == nl.FAMILY_MPLS {
stack := nl.DecodeMPLSStack(attr.Value)
if len(stack) == 0 || len(stack) > 1 {
return route, fmt.Errorf("invalid MPLS RTA_DST")
}
route.MPLSDst = &stack[0]
} else {
route.Dst = &net.IPNet{
IP: attr.Value,
Mask: net.CIDRMask(int(msg.Dst_len), 8*len(attr.Value)),
}
}
case syscall.RTA_OIF:
route.LinkIndex = int(native.Uint32(attr.Value[0:4]))
@ -347,17 +500,47 @@ func deserializeRoute(m []byte) (Route, error) {
info := &NexthopInfo{
LinkIndex: int(nh.RtNexthop.Ifindex),
Hops: int(nh.RtNexthop.Hops),
Flags: int(nh.RtNexthop.Flags),
}
attrs, err := nl.ParseRouteAttr(value[syscall.SizeofRtNexthop:int(nh.RtNexthop.Len)])
if err != nil {
return nil, nil, err
}
var encap, encapType syscall.NetlinkRouteAttr
for _, attr := range attrs {
switch attr.Attr.Type {
case syscall.RTA_GATEWAY:
info.Gw = net.IP(attr.Value)
case nl.RTA_NEWDST:
var d Destination
switch msg.Family {
case nl.FAMILY_MPLS:
d = &MPLSDestination{}
}
if err := d.Decode(attr.Value); err != nil {
return nil, nil, err
}
info.NewDst = d
case nl.RTA_ENCAP_TYPE:
encapType = attr
case nl.RTA_ENCAP:
encap = attr
}
}
if len(encap.Value) != 0 && len(encapType.Value) != 0 {
typ := int(native.Uint16(encapType.Value[0:2]))
var e Encap
switch typ {
case nl.LWTUNNEL_ENCAP_MPLS:
e = &MPLSEncap{}
if err := e.Decode(encap.Value); err != nil {
return nil, nil, err
}
}
info.Encap = e
}
return info, value[int(nh.RtNexthop.Len):], nil
}
rest := attr.Value
@ -369,8 +552,36 @@ func deserializeRoute(m []byte) (Route, error) {
route.MultiPath = append(route.MultiPath, info)
rest = buf
}
case nl.RTA_NEWDST:
var d Destination
switch msg.Family {
case nl.FAMILY_MPLS:
d = &MPLSDestination{}
}
if err := d.Decode(attr.Value); err != nil {
return route, err
}
route.NewDst = d
case nl.RTA_ENCAP_TYPE:
encapType = attr
case nl.RTA_ENCAP:
encap = attr
}
}
if len(encap.Value) != 0 && len(encapType.Value) != 0 {
typ := int(native.Uint16(encapType.Value[0:2]))
var e Encap
switch typ {
case nl.LWTUNNEL_ENCAP_MPLS:
e = &MPLSEncap{}
if err := e.Decode(encap.Value); err != nil {
return route, err
}
}
route.Encap = e
}
return route, nil
}

4
vendor/github.com/vishvananda/netlink/route_unspecified.go generated vendored
View File

@ -5,3 +5,7 @@ package netlink
func (r *Route) ListFlags() []string {
return []string{}
}
func (n *NexthopInfo) ListFlags() []string {
return []string{}
}

27
vendor/github.com/vishvananda/netlink/socket.go generated vendored Normal file
View File

@ -0,0 +1,27 @@
package netlink
import "net"
// SocketID identifies a single socket.
type SocketID struct {
SourcePort uint16
DestinationPort uint16
Source net.IP
Destination net.IP
Interface uint32
Cookie [2]uint32
}
// Socket represents a netlink socket.
type Socket struct {
Family uint8
State uint8
Timer uint8
Retrans uint8
ID SocketID
Expires uint32
RQueue uint32
WQueue uint32
UID uint32
INode uint32
}

159
vendor/github.com/vishvananda/netlink/socket_linux.go generated vendored Normal file
View File

@ -0,0 +1,159 @@
package netlink
import (
"errors"
"fmt"
"net"
"syscall"
"github.com/vishvananda/netlink/nl"
)
const (
sizeofSocketID = 0x30
sizeofSocketRequest = sizeofSocketID + 0x8
sizeofSocket = sizeofSocketID + 0x18
)
type socketRequest struct {
Family uint8
Protocol uint8
Ext uint8
pad uint8
States uint32
ID SocketID
}
type writeBuffer struct {
Bytes []byte
pos int
}
func (b *writeBuffer) Write(c byte) {
b.Bytes[b.pos] = c
b.pos++
}
func (b *writeBuffer) Next(n int) []byte {
s := b.Bytes[b.pos : b.pos+n]
b.pos += n
return s
}
func (r *socketRequest) Serialize() []byte {
b := writeBuffer{Bytes: make([]byte, sizeofSocketRequest)}
b.Write(r.Family)
b.Write(r.Protocol)
b.Write(r.Ext)
b.Write(r.pad)
native.PutUint32(b.Next(4), r.States)
networkOrder.PutUint16(b.Next(2), r.ID.SourcePort)
networkOrder.PutUint16(b.Next(2), r.ID.DestinationPort)
copy(b.Next(4), r.ID.Source.To4())
b.Next(12)
copy(b.Next(4), r.ID.Destination.To4())
b.Next(12)
native.PutUint32(b.Next(4), r.ID.Interface)
native.PutUint32(b.Next(4), r.ID.Cookie[0])
native.PutUint32(b.Next(4), r.ID.Cookie[1])
return b.Bytes
}
func (r *socketRequest) Len() int { return sizeofSocketRequest }
type readBuffer struct {
Bytes []byte
pos int
}
func (b *readBuffer) Read() byte {
c := b.Bytes[b.pos]
b.pos++
return c
}
func (b *readBuffer) Next(n int) []byte {
s := b.Bytes[b.pos : b.pos+n]
b.pos += n
return s
}
func (s *Socket) deserialize(b []byte) error {
if len(b) < sizeofSocket {
return fmt.Errorf("socket data short read (%d); want %d", len(b), sizeofSocket)
}
rb := readBuffer{Bytes: b}
s.Family = rb.Read()
s.State = rb.Read()
s.Timer = rb.Read()
s.Retrans = rb.Read()
s.ID.SourcePort = networkOrder.Uint16(rb.Next(2))
s.ID.DestinationPort = networkOrder.Uint16(rb.Next(2))
s.ID.Source = net.IPv4(rb.Read(), rb.Read(), rb.Read(), rb.Read())
rb.Next(12)
s.ID.Destination = net.IPv4(rb.Read(), rb.Read(), rb.Read(), rb.Read())
rb.Next(12)
s.ID.Interface = native.Uint32(rb.Next(4))
s.ID.Cookie[0] = native.Uint32(rb.Next(4))
s.ID.Cookie[1] = native.Uint32(rb.Next(4))
s.Expires = native.Uint32(rb.Next(4))
s.RQueue = native.Uint32(rb.Next(4))
s.WQueue = native.Uint32(rb.Next(4))
s.UID = native.Uint32(rb.Next(4))
s.INode = native.Uint32(rb.Next(4))
return nil
}
// SocketGet returns the Socket identified by its local and remote addresses.
func SocketGet(local, remote net.Addr) (*Socket, error) {
localTCP, ok := local.(*net.TCPAddr)
if !ok {
return nil, ErrNotImplemented
}
remoteTCP, ok := remote.(*net.TCPAddr)
if !ok {
return nil, ErrNotImplemented
}
localIP := localTCP.IP.To4()
if localIP == nil {
return nil, ErrNotImplemented
}
remoteIP := remoteTCP.IP.To4()
if remoteIP == nil {
return nil, ErrNotImplemented
}
s, err := nl.Subscribe(syscall.NETLINK_INET_DIAG)
if err != nil {
return nil, err
}
defer s.Close()
req := nl.NewNetlinkRequest(nl.SOCK_DIAG_BY_FAMILY, 0)
req.AddData(&socketRequest{
Family: syscall.AF_INET,
Protocol: syscall.IPPROTO_TCP,
ID: SocketID{
SourcePort: uint16(localTCP.Port),
DestinationPort: uint16(remoteTCP.Port),
Source: localIP,
Destination: remoteIP,
Cookie: [2]uint32{nl.TCPDIAG_NOCOOKIE, nl.TCPDIAG_NOCOOKIE},
},
})
s.Send(req)
msgs, err := s.Receive()
if err != nil {
return nil, err
}
if len(msgs) == 0 {
return nil, errors.New("no message nor error from netlink")
}
if len(msgs) > 2 {
return nil, fmt.Errorf("multiple (%d) matching sockets", len(msgs))
}
sock := &Socket{}
if err := sock.deserialize(msgs[0].Data); err != nil {
return nil, err
}
return sock, nil
}

98
vendor/github.com/vishvananda/netlink/xfrm_monitor_linux.go generated vendored Normal file
View File

@ -0,0 +1,98 @@
package netlink
import (
"fmt"
"syscall"
"github.com/vishvananda/netns"
"github.com/vishvananda/netlink/nl"
)
type XfrmMsg interface {
Type() nl.XfrmMsgType
}
type XfrmMsgExpire struct {
XfrmState *XfrmState
Hard bool
}
func (ue *XfrmMsgExpire) Type() nl.XfrmMsgType {
return nl.XFRM_MSG_EXPIRE
}
func parseXfrmMsgExpire(b []byte) *XfrmMsgExpire {
var e XfrmMsgExpire
msg := nl.DeserializeXfrmUserExpire(b)
e.XfrmState = xfrmStateFromXfrmUsersaInfo(&msg.XfrmUsersaInfo)
e.Hard = msg.Hard == 1
return &e
}
func XfrmMonitor(ch chan<- XfrmMsg, done <-chan struct{}, errorChan chan<- error,
types ...nl.XfrmMsgType) error {
groups, err := xfrmMcastGroups(types)
if err != nil {
return nil
}
s, err := nl.SubscribeAt(netns.None(), netns.None(), syscall.NETLINK_XFRM, groups...)
if err != nil {
return err
}
if done != nil {
go func() {
<-done
s.Close()
}()
}
go func() {
defer close(ch)
for {
msgs, err := s.Receive()
if err != nil {
errorChan <- err
return
}
for _, m := range msgs {
switch m.Header.Type {
case nl.XFRM_MSG_EXPIRE:
ch <- parseXfrmMsgExpire(m.Data)
default:
errorChan <- fmt.Errorf("unsupported msg type: %x", m.Header.Type)
}
}
}
}()
return nil
}
func xfrmMcastGroups(types []nl.XfrmMsgType) ([]uint, error) {
groups := make([]uint, 0)
if len(types) == 0 {
return nil, fmt.Errorf("no xfrm msg type specified")
}
for _, t := range types {
var group uint
switch t {
case nl.XFRM_MSG_EXPIRE:
group = nl.XFRMNLGRP_EXPIRE
default:
return nil, fmt.Errorf("unsupported group: %x", t)
}
groups = append(groups, group)
}
return groups, nil
}

5
vendor/github.com/vishvananda/netlink/xfrm_state.go generated vendored
View File

@ -83,11 +83,12 @@ type XfrmState struct {
Crypt *XfrmStateAlgo
Aead *XfrmStateAlgo
Encap *XfrmStateEncap
ESN bool
}
func (sa XfrmState) String() string {
return fmt.Sprintf("Dst: %v, Src: %v, Proto: %s, Mode: %s, SPI: 0x%x, ReqID: 0x%x, ReplayWindow: %d, Mark: %v, Auth: %v, Crypt: %v, Aead: %v,Encap: %v",
sa.Dst, sa.Src, sa.Proto, sa.Mode, sa.Spi, sa.Reqid, sa.ReplayWindow, sa.Mark, sa.Auth, sa.Crypt, sa.Aead, sa.Encap)
return fmt.Sprintf("Dst: %v, Src: %v, Proto: %s, Mode: %s, SPI: 0x%x, ReqID: 0x%x, ReplayWindow: %d, Mark: %v, Auth: %v, Crypt: %v, Aead: %v, Encap: %v, ESN: %t",
sa.Dst, sa.Src, sa.Proto, sa.Mode, sa.Spi, sa.Reqid, sa.ReplayWindow, sa.Mark, sa.Auth, sa.Crypt, sa.Aead, sa.Encap, sa.ESN)
}
func (sa XfrmState) Print(stats bool) string {
if !stats {

112
vendor/github.com/vishvananda/netlink/xfrm_state_linux.go generated vendored
View File

@ -60,6 +60,21 @@ func writeMark(m *XfrmMark) []byte {
return mark.Serialize()
}
func writeReplayEsn(replayWindow int) []byte {
replayEsn := &nl.XfrmReplayStateEsn{
OSeq: 0,
Seq: 0,
OSeqHi: 0,
SeqHi: 0,
ReplayWindow: uint32(replayWindow),
}
// taken from iproute2/ip/xfrm_state.c:
replayEsn.BmpLen = uint32((replayWindow + (4 * 8) - 1) / (4 * 8))
return replayEsn.Serialize()
}
// XfrmStateAdd will add an xfrm state to the system.
// Equivalent to: `ip xfrm state add $state`
func XfrmStateAdd(state *XfrmState) error {
@ -72,6 +87,12 @@ func (h *Handle) XfrmStateAdd(state *XfrmState) error {
return h.xfrmStateAddOrUpdate(state, nl.XFRM_MSG_NEWSA)
}
// XfrmStateAllocSpi will allocate an xfrm state in the system.
// Equivalent to: `ip xfrm state allocspi`
func XfrmStateAllocSpi(state *XfrmState) (*XfrmState, error) {
return pkgHandle.xfrmStateAllocSpi(state)
}
// XfrmStateUpdate will update an xfrm state to the system.
// Equivalent to: `ip xfrm state update $state`
func XfrmStateUpdate(state *XfrmState) error {
@ -85,21 +106,23 @@ func (h *Handle) XfrmStateUpdate(state *XfrmState) error {
}
func (h *Handle) xfrmStateAddOrUpdate(state *XfrmState, nlProto int) error {
// A state with spi 0 can't be deleted so don't allow it to be set
if state.Spi == 0 {
return fmt.Errorf("Spi must be set when adding xfrm state.")
}
req := h.newNetlinkRequest(nlProto, syscall.NLM_F_CREATE|syscall.NLM_F_EXCL|syscall.NLM_F_ACK)
msg := &nl.XfrmUsersaInfo{}
msg.Family = uint16(nl.GetIPFamily(state.Dst))
msg.Id.Daddr.FromIP(state.Dst)
msg.Saddr.FromIP(state.Src)
msg.Id.Proto = uint8(state.Proto)
msg.Mode = uint8(state.Mode)
msg.Id.Spi = nl.Swap32(uint32(state.Spi))
msg.Reqid = uint32(state.Reqid)
msg.ReplayWindow = uint8(state.ReplayWindow)
msg := xfrmUsersaInfoFromXfrmState(state)
if state.ESN {
if state.ReplayWindow == 0 {
return fmt.Errorf("ESN flag set without ReplayWindow")
}
msg.Flags |= nl.XFRM_STATE_ESN
msg.ReplayWindow = 0
}
limitsToLft(state.Limits, &msg.Lft)
req.AddData(msg)
@ -129,11 +152,44 @@ func (h *Handle) xfrmStateAddOrUpdate(state *XfrmState, nlProto int) error {
out := nl.NewRtAttr(nl.XFRMA_MARK, writeMark(state.Mark))
req.AddData(out)
}
if state.ESN {
out := nl.NewRtAttr(nl.XFRMA_REPLAY_ESN_VAL, writeReplayEsn(state.ReplayWindow))
req.AddData(out)
}
_, err := req.Execute(syscall.NETLINK_XFRM, 0)
return err
}
func (h *Handle) xfrmStateAllocSpi(state *XfrmState) (*XfrmState, error) {
req := h.newNetlinkRequest(nl.XFRM_MSG_ALLOCSPI,
syscall.NLM_F_CREATE|syscall.NLM_F_EXCL|syscall.NLM_F_ACK)
msg := &nl.XfrmUserSpiInfo{}
msg.XfrmUsersaInfo = *(xfrmUsersaInfoFromXfrmState(state))
// 1-255 is reserved by IANA for future use
msg.Min = 0x100
msg.Max = 0xffffffff
req.AddData(msg)
if state.Mark != nil {
out := nl.NewRtAttr(nl.XFRMA_MARK, writeMark(state.Mark))
req.AddData(out)
}
msgs, err := req.Execute(syscall.NETLINK_XFRM, 0)
if err != nil {
return nil, err
}
s, err := parseXfrmState(msgs[0], FAMILY_ALL)
if err != nil {
return nil, err
}
return s, err
}
// XfrmStateDel will delete an xfrm state from the system. Note that
// the Algos are ignored when matching the state to delete.
// Equivalent to: `ip xfrm state del $state`
@ -241,14 +297,7 @@ func (h *Handle) xfrmStateGetOrDelete(state *XfrmState, nlProto int) (*XfrmState
var familyError = fmt.Errorf("family error")
func parseXfrmState(m []byte, family int) (*XfrmState, error) {
msg := nl.DeserializeXfrmUsersaInfo(m)
// This is mainly for the state dump
if family != FAMILY_ALL && family != int(msg.Family) {
return nil, familyError
}
func xfrmStateFromXfrmUsersaInfo(msg *nl.XfrmUsersaInfo) *XfrmState {
var state XfrmState
state.Dst = msg.Id.Daddr.ToIP()
@ -260,6 +309,19 @@ func parseXfrmState(m []byte, family int) (*XfrmState, error) {
state.ReplayWindow = int(msg.ReplayWindow)
lftToLimits(&msg.Lft, &state.Limits)
return &state
}
func parseXfrmState(m []byte, family int) (*XfrmState, error) {
msg := nl.DeserializeXfrmUsersaInfo(m)
// This is mainly for the state dump
if family != FAMILY_ALL && family != int(msg.Family) {
return nil, familyError
}
state := xfrmStateFromXfrmUsersaInfo(msg)
attrs, err := nl.ParseRouteAttr(m[nl.SizeofXfrmUsersaInfo:])
if err != nil {
return nil, err
@ -310,7 +372,7 @@ func parseXfrmState(m []byte, family int) (*XfrmState, error) {
}
}
return &state, nil
return state, nil
}
// XfrmStateFlush will flush the xfrm state on the system.
@ -366,3 +428,17 @@ func limitsToLft(lmts XfrmStateLimits, lft *nl.XfrmLifetimeCfg) {
func lftToLimits(lft *nl.XfrmLifetimeCfg, lmts *XfrmStateLimits) {
*lmts = *(*XfrmStateLimits)(unsafe.Pointer(lft))
}
func xfrmUsersaInfoFromXfrmState(state *XfrmState) *nl.XfrmUsersaInfo {
msg := &nl.XfrmUsersaInfo{}
msg.Family = uint16(nl.GetIPFamily(state.Dst))
msg.Id.Daddr.FromIP(state.Dst)
msg.Saddr.FromIP(state.Src)
msg.Id.Proto = uint8(state.Proto)
msg.Mode = uint8(state.Mode)
msg.Id.Spi = nl.Swap32(uint32(state.Spi))
msg.Reqid = uint32(state.Reqid)
msg.ReplayWindow = uint8(state.ReplayWindow)
return msg
}

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@ -0,0 +1,3 @@
# This source code refers to The Go Authors for copyright purposes.
# The master list of authors is in the main Go distribution,
# visible at http://tip.golang.org/AUTHORS.

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# This source code was written by the Go contributors.
# The master list of contributors is in the main Go distribution,
# visible at http://tip.golang.org/CONTRIBUTORS.

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