build: update github.com/vishvananda/netlink to 1.3.0
This includes a breaking change:
acdc658b86
route.Dst is now a zero IPNet instead of nil
Signed-off-by: Etienne Champetier <e.champetier@ateme.com>
This commit is contained in:
Etienne Champetier
507
vendor/github.com/vishvananda/netlink/socket_linux.go
generated
vendored
507
vendor/github.com/vishvananda/netlink/socket_linux.go
generated
vendored
@ -11,9 +11,11 @@ import (
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)
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const (
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sizeofSocketID = 0x30
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sizeofSocketRequest = sizeofSocketID + 0x8
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sizeofSocket = sizeofSocketID + 0x18
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sizeofSocketID = 0x30
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sizeofSocketRequest = sizeofSocketID + 0x8
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sizeofSocket = sizeofSocketID + 0x18
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sizeofUnixSocketRequest = 0x18 // 24 byte
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sizeofUnixSocket = 0x10 // 16 byte
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)
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type socketRequest struct {
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@ -54,10 +56,8 @@ func (r *socketRequest) Serialize() []byte {
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copy(b.Next(16), r.ID.Source)
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copy(b.Next(16), r.ID.Destination)
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} else {
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copy(b.Next(4), r.ID.Source.To4())
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b.Next(12)
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copy(b.Next(4), r.ID.Destination.To4())
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b.Next(12)
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copy(b.Next(16), r.ID.Source.To4())
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copy(b.Next(16), r.ID.Destination.To4())
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}
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native.PutUint32(b.Next(4), r.ID.Interface)
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native.PutUint32(b.Next(4), r.ID.Cookie[0])
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@ -67,6 +67,32 @@ func (r *socketRequest) Serialize() []byte {
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func (r *socketRequest) Len() int { return sizeofSocketRequest }
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// According to linux/include/uapi/linux/unix_diag.h
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type unixSocketRequest struct {
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Family uint8
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Protocol uint8
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pad uint16
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States uint32
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INode uint32
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Show uint32
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Cookie [2]uint32
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}
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func (r *unixSocketRequest) Serialize() []byte {
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b := writeBuffer{Bytes: make([]byte, sizeofUnixSocketRequest)}
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b.Write(r.Family)
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b.Write(r.Protocol)
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native.PutUint16(b.Next(2), r.pad)
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native.PutUint32(b.Next(4), r.States)
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native.PutUint32(b.Next(4), r.INode)
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native.PutUint32(b.Next(4), r.Show)
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native.PutUint32(b.Next(4), r.Cookie[0])
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native.PutUint32(b.Next(4), r.Cookie[1])
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return b.Bytes
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}
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func (r *unixSocketRequest) Len() int { return sizeofUnixSocketRequest }
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type readBuffer struct {
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Bytes []byte
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pos int
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@ -115,31 +141,126 @@ func (s *Socket) deserialize(b []byte) error {
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return nil
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}
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func (u *UnixSocket) deserialize(b []byte) error {
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if len(b) < sizeofUnixSocket {
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return fmt.Errorf("unix diag data short read (%d); want %d", len(b), sizeofUnixSocket)
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}
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rb := readBuffer{Bytes: b}
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u.Type = rb.Read()
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u.Family = rb.Read()
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u.State = rb.Read()
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u.pad = rb.Read()
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u.INode = native.Uint32(rb.Next(4))
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u.Cookie[0] = native.Uint32(rb.Next(4))
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u.Cookie[1] = native.Uint32(rb.Next(4))
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return nil
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}
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// SocketGet returns the Socket identified by its local and remote addresses.
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func (h *Handle) SocketGet(local, remote net.Addr) (*Socket, error) {
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var protocol uint8
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var localIP, remoteIP net.IP
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var localPort, remotePort uint16
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switch l := local.(type) {
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case *net.TCPAddr:
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r, ok := remote.(*net.TCPAddr)
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if !ok {
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return nil, ErrNotImplemented
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}
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localIP = l.IP
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localPort = uint16(l.Port)
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remoteIP = r.IP
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remotePort = uint16(r.Port)
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protocol = unix.IPPROTO_TCP
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case *net.UDPAddr:
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r, ok := remote.(*net.UDPAddr)
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if !ok {
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return nil, ErrNotImplemented
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}
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localIP = l.IP
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localPort = uint16(l.Port)
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remoteIP = r.IP
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remotePort = uint16(r.Port)
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protocol = unix.IPPROTO_UDP
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default:
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return nil, ErrNotImplemented
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}
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var family uint8
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if localIP.To4() != nil && remoteIP.To4() != nil {
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family = unix.AF_INET
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}
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if family == 0 && localIP.To16() != nil && remoteIP.To16() != nil {
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family = unix.AF_INET6
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}
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if family == 0 {
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return nil, ErrNotImplemented
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}
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req := h.newNetlinkRequest(nl.SOCK_DIAG_BY_FAMILY, unix.NLM_F_DUMP)
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req.AddData(&socketRequest{
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Family: family,
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Protocol: protocol,
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States: 0xffffffff,
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ID: SocketID{
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SourcePort: localPort,
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DestinationPort: remotePort,
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Source: localIP,
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Destination: remoteIP,
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Cookie: [2]uint32{nl.TCPDIAG_NOCOOKIE, nl.TCPDIAG_NOCOOKIE},
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},
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})
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msgs, err := req.Execute(unix.NETLINK_INET_DIAG, nl.SOCK_DIAG_BY_FAMILY)
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if err != nil {
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return nil, err
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}
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if len(msgs) == 0 {
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return nil, errors.New("no message nor error from netlink")
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}
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if len(msgs) > 2 {
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return nil, fmt.Errorf("multiple (%d) matching sockets", len(msgs))
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}
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sock := &Socket{}
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if err := sock.deserialize(msgs[0]); err != nil {
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return nil, err
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}
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return sock, nil
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}
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// SocketGet returns the Socket identified by its local and remote addresses.
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func SocketGet(local, remote net.Addr) (*Socket, error) {
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return pkgHandle.SocketGet(local, remote)
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}
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// SocketDestroy kills the Socket identified by its local and remote addresses.
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func (h *Handle) SocketDestroy(local, remote net.Addr) error {
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localTCP, ok := local.(*net.TCPAddr)
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if !ok {
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return nil, ErrNotImplemented
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return ErrNotImplemented
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}
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remoteTCP, ok := remote.(*net.TCPAddr)
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if !ok {
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return nil, ErrNotImplemented
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return ErrNotImplemented
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}
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localIP := localTCP.IP.To4()
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if localIP == nil {
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return nil, ErrNotImplemented
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return ErrNotImplemented
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}
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remoteIP := remoteTCP.IP.To4()
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if remoteIP == nil {
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return nil, ErrNotImplemented
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return ErrNotImplemented
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}
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s, err := nl.Subscribe(unix.NETLINK_INET_DIAG)
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if err != nil {
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return nil, err
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return err
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}
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defer s.Close()
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req := nl.NewNetlinkRequest(nl.SOCK_DIAG_BY_FAMILY, 0)
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req := h.newNetlinkRequest(nl.SOCK_DESTROY, unix.NLM_F_ACK)
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req.AddData(&socketRequest{
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Family: unix.AF_INET,
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Protocol: unix.IPPROTO_TCP,
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@ -151,47 +272,81 @@ func SocketGet(local, remote net.Addr) (*Socket, error) {
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Cookie: [2]uint32{nl.TCPDIAG_NOCOOKIE, nl.TCPDIAG_NOCOOKIE},
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},
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})
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s.Send(req)
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msgs, from, err := s.Receive()
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_, err = req.Execute(unix.NETLINK_INET_DIAG, 0)
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return err
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}
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// SocketDestroy kills the Socket identified by its local and remote addresses.
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func SocketDestroy(local, remote net.Addr) error {
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return pkgHandle.SocketDestroy(local, remote)
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}
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// SocketDiagTCPInfo requests INET_DIAG_INFO for TCP protocol for specified family type and return with extension TCP info.
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func (h *Handle) SocketDiagTCPInfo(family uint8) ([]*InetDiagTCPInfoResp, error) {
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// Construct the request
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req := h.newNetlinkRequest(nl.SOCK_DIAG_BY_FAMILY, unix.NLM_F_DUMP)
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req.AddData(&socketRequest{
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Family: family,
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Protocol: unix.IPPROTO_TCP,
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Ext: (1 << (INET_DIAG_VEGASINFO - 1)) | (1 << (INET_DIAG_INFO - 1)),
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States: uint32(0xfff), // all states
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})
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// Do the query and parse the result
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var result []*InetDiagTCPInfoResp
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var err error
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err = req.ExecuteIter(unix.NETLINK_INET_DIAG, nl.SOCK_DIAG_BY_FAMILY, func(msg []byte) bool {
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sockInfo := &Socket{}
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if err = sockInfo.deserialize(msg); err != nil {
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return false
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}
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var attrs []syscall.NetlinkRouteAttr
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if attrs, err = nl.ParseRouteAttr(msg[sizeofSocket:]); err != nil {
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return false
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}
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var res *InetDiagTCPInfoResp
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if res, err = attrsToInetDiagTCPInfoResp(attrs, sockInfo); err != nil {
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return false
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}
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result = append(result, res)
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return true
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})
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if err != nil {
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return nil, err
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}
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if from.Pid != nl.PidKernel {
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return nil, fmt.Errorf("Wrong sender portid %d, expected %d", from.Pid, nl.PidKernel)
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}
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if len(msgs) == 0 {
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return nil, errors.New("no message nor error from netlink")
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}
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if len(msgs) > 2 {
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return nil, fmt.Errorf("multiple (%d) matching sockets", len(msgs))
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}
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sock := &Socket{}
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if err := sock.deserialize(msgs[0].Data); err != nil {
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return nil, err
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}
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return sock, nil
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return result, nil
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}
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// SocketDiagTCPInfo requests INET_DIAG_INFO for TCP protocol for specified family type and return with extension TCP info.
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func SocketDiagTCPInfo(family uint8) ([]*InetDiagTCPInfoResp, error) {
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var result []*InetDiagTCPInfoResp
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err := socketDiagTCPExecutor(family, func(m syscall.NetlinkMessage) error {
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return pkgHandle.SocketDiagTCPInfo(family)
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}
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// SocketDiagTCP requests INET_DIAG_INFO for TCP protocol for specified family type and return related socket.
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func (h *Handle) SocketDiagTCP(family uint8) ([]*Socket, error) {
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// Construct the request
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req := h.newNetlinkRequest(nl.SOCK_DIAG_BY_FAMILY, unix.NLM_F_DUMP)
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req.AddData(&socketRequest{
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Family: family,
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Protocol: unix.IPPROTO_TCP,
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Ext: (1 << (INET_DIAG_VEGASINFO - 1)) | (1 << (INET_DIAG_INFO - 1)),
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States: uint32(0xfff), // all states
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})
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// Do the query and parse the result
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var result []*Socket
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var err error
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err = req.ExecuteIter(unix.NETLINK_INET_DIAG, nl.SOCK_DIAG_BY_FAMILY, func(msg []byte) bool {
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sockInfo := &Socket{}
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if err := sockInfo.deserialize(m.Data); err != nil {
|
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return err
|
||||
if err = sockInfo.deserialize(msg); err != nil {
|
||||
return false
|
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}
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attrs, err := nl.ParseRouteAttr(m.Data[sizeofSocket:])
|
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if err != nil {
|
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return err
|
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}
|
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|
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res, err := attrsToInetDiagTCPInfoResp(attrs, sockInfo)
|
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if err != nil {
|
||||
return err
|
||||
}
|
||||
|
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result = append(result, res)
|
||||
return nil
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result = append(result, sockInfo)
|
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return true
|
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})
|
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if err != nil {
|
||||
return nil, err
|
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@ -201,14 +356,46 @@ func SocketDiagTCPInfo(family uint8) ([]*InetDiagTCPInfoResp, error) {
|
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// SocketDiagTCP requests INET_DIAG_INFO for TCP protocol for specified family type and return related socket.
|
||||
func SocketDiagTCP(family uint8) ([]*Socket, error) {
|
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var result []*Socket
|
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err := socketDiagTCPExecutor(family, func(m syscall.NetlinkMessage) error {
|
||||
return pkgHandle.SocketDiagTCP(family)
|
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}
|
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|
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// SocketDiagUDPInfo requests INET_DIAG_INFO for UDP protocol for specified family type and return with extension info.
|
||||
func (h *Handle) SocketDiagUDPInfo(family uint8) ([]*InetDiagUDPInfoResp, error) {
|
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// Construct the request
|
||||
var extensions uint8
|
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extensions = 1 << (INET_DIAG_VEGASINFO - 1)
|
||||
extensions |= 1 << (INET_DIAG_INFO - 1)
|
||||
extensions |= 1 << (INET_DIAG_MEMINFO - 1)
|
||||
|
||||
req := h.newNetlinkRequest(nl.SOCK_DIAG_BY_FAMILY, unix.NLM_F_DUMP)
|
||||
req.AddData(&socketRequest{
|
||||
Family: family,
|
||||
Protocol: unix.IPPROTO_UDP,
|
||||
Ext: extensions,
|
||||
States: uint32(0xfff), // all states
|
||||
})
|
||||
|
||||
// Do the query and parse the result
|
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var result []*InetDiagUDPInfoResp
|
||||
var err error
|
||||
err = req.ExecuteIter(unix.NETLINK_INET_DIAG, nl.SOCK_DIAG_BY_FAMILY, func(msg []byte) bool {
|
||||
sockInfo := &Socket{}
|
||||
if err := sockInfo.deserialize(m.Data); err != nil {
|
||||
return err
|
||||
if err = sockInfo.deserialize(msg); err != nil {
|
||||
return false
|
||||
}
|
||||
result = append(result, sockInfo)
|
||||
return nil
|
||||
|
||||
var attrs []syscall.NetlinkRouteAttr
|
||||
if attrs, err = nl.ParseRouteAttr(msg[sizeofSocket:]); err != nil {
|
||||
return false
|
||||
}
|
||||
|
||||
var res *InetDiagUDPInfoResp
|
||||
if res, err = attrsToInetDiagUDPInfoResp(attrs, sockInfo); err != nil {
|
||||
return false
|
||||
}
|
||||
|
||||
result = append(result, res)
|
||||
return true
|
||||
})
|
||||
if err != nil {
|
||||
return nil, err
|
||||
@ -216,76 +403,188 @@ func SocketDiagTCP(family uint8) ([]*Socket, error) {
|
||||
return result, nil
|
||||
}
|
||||
|
||||
// socketDiagTCPExecutor requests INET_DIAG_INFO for TCP protocol for specified family type.
|
||||
func socketDiagTCPExecutor(family uint8, receiver func(syscall.NetlinkMessage) error) error {
|
||||
s, err := nl.Subscribe(unix.NETLINK_INET_DIAG)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
defer s.Close()
|
||||
// SocketDiagUDPInfo requests INET_DIAG_INFO for UDP protocol for specified family type and return with extension info.
|
||||
func SocketDiagUDPInfo(family uint8) ([]*InetDiagUDPInfoResp, error) {
|
||||
return pkgHandle.SocketDiagUDPInfo(family)
|
||||
}
|
||||
|
||||
req := nl.NewNetlinkRequest(nl.SOCK_DIAG_BY_FAMILY, unix.NLM_F_DUMP)
|
||||
// SocketDiagUDP requests INET_DIAG_INFO for UDP protocol for specified family type and return related socket.
|
||||
func (h *Handle) SocketDiagUDP(family uint8) ([]*Socket, error) {
|
||||
// Construct the request
|
||||
req := h.newNetlinkRequest(nl.SOCK_DIAG_BY_FAMILY, unix.NLM_F_DUMP)
|
||||
req.AddData(&socketRequest{
|
||||
Family: family,
|
||||
Protocol: unix.IPPROTO_TCP,
|
||||
Protocol: unix.IPPROTO_UDP,
|
||||
Ext: (1 << (INET_DIAG_VEGASINFO - 1)) | (1 << (INET_DIAG_INFO - 1)),
|
||||
States: uint32(0xfff), // All TCP states
|
||||
States: uint32(0xfff), // all states
|
||||
})
|
||||
s.Send(req)
|
||||
|
||||
loop:
|
||||
for {
|
||||
msgs, from, err := s.Receive()
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
if from.Pid != nl.PidKernel {
|
||||
return fmt.Errorf("Wrong sender portid %d, expected %d", from.Pid, nl.PidKernel)
|
||||
}
|
||||
if len(msgs) == 0 {
|
||||
return errors.New("no message nor error from netlink")
|
||||
}
|
||||
|
||||
for _, m := range msgs {
|
||||
switch m.Header.Type {
|
||||
case unix.NLMSG_DONE:
|
||||
break loop
|
||||
case unix.NLMSG_ERROR:
|
||||
error := int32(native.Uint32(m.Data[0:4]))
|
||||
return syscall.Errno(-error)
|
||||
}
|
||||
if err := receiver(m); err != nil {
|
||||
return err
|
||||
}
|
||||
// Do the query and parse the result
|
||||
var result []*Socket
|
||||
var err error
|
||||
err = req.ExecuteIter(unix.NETLINK_INET_DIAG, nl.SOCK_DIAG_BY_FAMILY, func(msg []byte) bool {
|
||||
sockInfo := &Socket{}
|
||||
if err = sockInfo.deserialize(msg); err != nil {
|
||||
return false
|
||||
}
|
||||
result = append(result, sockInfo)
|
||||
return true
|
||||
})
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
return nil
|
||||
return result, nil
|
||||
}
|
||||
|
||||
// SocketDiagUDP requests INET_DIAG_INFO for UDP protocol for specified family type and return related socket.
|
||||
func SocketDiagUDP(family uint8) ([]*Socket, error) {
|
||||
return pkgHandle.SocketDiagUDP(family)
|
||||
}
|
||||
|
||||
// UnixSocketDiagInfo requests UNIX_DIAG_INFO for unix sockets and return with extension info.
|
||||
func (h *Handle) UnixSocketDiagInfo() ([]*UnixDiagInfoResp, error) {
|
||||
// Construct the request
|
||||
var extensions uint8
|
||||
extensions = 1 << UNIX_DIAG_NAME
|
||||
extensions |= 1 << UNIX_DIAG_PEER
|
||||
extensions |= 1 << UNIX_DIAG_RQLEN
|
||||
req := h.newNetlinkRequest(nl.SOCK_DIAG_BY_FAMILY, unix.NLM_F_DUMP)
|
||||
req.AddData(&unixSocketRequest{
|
||||
Family: unix.AF_UNIX,
|
||||
States: ^uint32(0), // all states
|
||||
Show: uint32(extensions),
|
||||
})
|
||||
|
||||
var result []*UnixDiagInfoResp
|
||||
var err error
|
||||
err = req.ExecuteIter(unix.NETLINK_INET_DIAG, nl.SOCK_DIAG_BY_FAMILY, func(msg []byte) bool {
|
||||
sockInfo := &UnixSocket{}
|
||||
if err = sockInfo.deserialize(msg); err != nil {
|
||||
return false
|
||||
}
|
||||
|
||||
// Diagnosis also delivers sockets with AF_INET family, filter those
|
||||
if sockInfo.Family != unix.AF_UNIX {
|
||||
return false
|
||||
}
|
||||
|
||||
var attrs []syscall.NetlinkRouteAttr
|
||||
if attrs, err = nl.ParseRouteAttr(msg[sizeofSocket:]); err != nil {
|
||||
return false
|
||||
}
|
||||
|
||||
var res *UnixDiagInfoResp
|
||||
if res, err = attrsToUnixDiagInfoResp(attrs, sockInfo); err != nil {
|
||||
return false
|
||||
}
|
||||
result = append(result, res)
|
||||
return true
|
||||
})
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
return result, nil
|
||||
}
|
||||
|
||||
// UnixSocketDiagInfo requests UNIX_DIAG_INFO for unix sockets and return with extension info.
|
||||
func UnixSocketDiagInfo() ([]*UnixDiagInfoResp, error) {
|
||||
return pkgHandle.UnixSocketDiagInfo()
|
||||
}
|
||||
|
||||
// UnixSocketDiag requests UNIX_DIAG_INFO for unix sockets.
|
||||
func (h *Handle) UnixSocketDiag() ([]*UnixSocket, error) {
|
||||
// Construct the request
|
||||
req := h.newNetlinkRequest(nl.SOCK_DIAG_BY_FAMILY, unix.NLM_F_DUMP)
|
||||
req.AddData(&unixSocketRequest{
|
||||
Family: unix.AF_UNIX,
|
||||
States: ^uint32(0), // all states
|
||||
})
|
||||
|
||||
var result []*UnixSocket
|
||||
var err error
|
||||
err = req.ExecuteIter(unix.NETLINK_INET_DIAG, nl.SOCK_DIAG_BY_FAMILY, func(msg []byte) bool {
|
||||
sockInfo := &UnixSocket{}
|
||||
if err = sockInfo.deserialize(msg); err != nil {
|
||||
return false
|
||||
}
|
||||
|
||||
// Diagnosis also delivers sockets with AF_INET family, filter those
|
||||
if sockInfo.Family == unix.AF_UNIX {
|
||||
result = append(result, sockInfo)
|
||||
}
|
||||
return true
|
||||
})
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
return result, nil
|
||||
}
|
||||
|
||||
// UnixSocketDiag requests UNIX_DIAG_INFO for unix sockets.
|
||||
func UnixSocketDiag() ([]*UnixSocket, error) {
|
||||
return pkgHandle.UnixSocketDiag()
|
||||
}
|
||||
|
||||
func attrsToInetDiagTCPInfoResp(attrs []syscall.NetlinkRouteAttr, sockInfo *Socket) (*InetDiagTCPInfoResp, error) {
|
||||
var tcpInfo *TCPInfo
|
||||
var tcpBBRInfo *TCPBBRInfo
|
||||
info := &InetDiagTCPInfoResp{
|
||||
InetDiagMsg: sockInfo,
|
||||
}
|
||||
for _, a := range attrs {
|
||||
if a.Attr.Type == INET_DIAG_INFO {
|
||||
tcpInfo = &TCPInfo{}
|
||||
if err := tcpInfo.deserialize(a.Value); err != nil {
|
||||
switch a.Attr.Type {
|
||||
case INET_DIAG_INFO:
|
||||
info.TCPInfo = &TCPInfo{}
|
||||
if err := info.TCPInfo.deserialize(a.Value); err != nil {
|
||||
return nil, err
|
||||
}
|
||||
continue
|
||||
}
|
||||
|
||||
if a.Attr.Type == INET_DIAG_BBRINFO {
|
||||
tcpBBRInfo = &TCPBBRInfo{}
|
||||
if err := tcpBBRInfo.deserialize(a.Value); err != nil {
|
||||
case INET_DIAG_BBRINFO:
|
||||
info.TCPBBRInfo = &TCPBBRInfo{}
|
||||
if err := info.TCPBBRInfo.deserialize(a.Value); err != nil {
|
||||
return nil, err
|
||||
}
|
||||
continue
|
||||
}
|
||||
}
|
||||
|
||||
return &InetDiagTCPInfoResp{
|
||||
InetDiagMsg: sockInfo,
|
||||
TCPInfo: tcpInfo,
|
||||
TCPBBRInfo: tcpBBRInfo,
|
||||
}, nil
|
||||
return info, nil
|
||||
}
|
||||
|
||||
func attrsToInetDiagUDPInfoResp(attrs []syscall.NetlinkRouteAttr, sockInfo *Socket) (*InetDiagUDPInfoResp, error) {
|
||||
info := &InetDiagUDPInfoResp{
|
||||
InetDiagMsg: sockInfo,
|
||||
}
|
||||
for _, a := range attrs {
|
||||
switch a.Attr.Type {
|
||||
case INET_DIAG_MEMINFO:
|
||||
info.Memory = &MemInfo{}
|
||||
if err := info.Memory.deserialize(a.Value); err != nil {
|
||||
return nil, err
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
return info, nil
|
||||
}
|
||||
|
||||
func attrsToUnixDiagInfoResp(attrs []syscall.NetlinkRouteAttr, sockInfo *UnixSocket) (*UnixDiagInfoResp, error) {
|
||||
info := &UnixDiagInfoResp{
|
||||
DiagMsg: sockInfo,
|
||||
}
|
||||
for _, a := range attrs {
|
||||
switch a.Attr.Type {
|
||||
case UNIX_DIAG_NAME:
|
||||
name := string(a.Value[:a.Attr.Len])
|
||||
info.Name = &name
|
||||
case UNIX_DIAG_PEER:
|
||||
peer := native.Uint32(a.Value)
|
||||
info.Peer = &peer
|
||||
case UNIX_DIAG_RQLEN:
|
||||
info.Queue = &QueueInfo{
|
||||
RQueue: native.Uint32(a.Value[:4]),
|
||||
WQueue: native.Uint32(a.Value[4:]),
|
||||
}
|
||||
// default:
|
||||
// fmt.Println("unknown unix attribute type", a.Attr.Type, "with data", a.Value)
|
||||
}
|
||||
}
|
||||
|
||||
return info, nil
|
||||
}
|
||||
|
||||
Reference in New Issue
Block a user