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dump_interface_vppcalls.go
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dump_interface_vppcalls.go
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// Copyright (c) 2019 Cisco and/or its affiliates.
//
// 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 vpp2001_379
import (
"bytes"
"encoding/hex"
"fmt"
"net"
"strings"
ifs "github.com/ligato/vpp-agent/api/models/vpp/interfaces"
ipsec "github.com/ligato/vpp-agent/api/models/vpp/ipsec"
vpp_bond "github.com/ligato/vpp-agent/plugins/vpp/binapi/vpp2001_379/bond"
vpp_dhcp "github.com/ligato/vpp-agent/plugins/vpp/binapi/vpp2001_379/dhcp"
vpp_gre "github.com/ligato/vpp-agent/plugins/vpp/binapi/vpp2001_379/gre"
vpp_ifs "github.com/ligato/vpp-agent/plugins/vpp/binapi/vpp2001_379/interfaces"
vpp_ip "github.com/ligato/vpp-agent/plugins/vpp/binapi/vpp2001_379/ip"
vpp_ipsec "github.com/ligato/vpp-agent/plugins/vpp/binapi/vpp2001_379/ipsec"
vpp_memif "github.com/ligato/vpp-agent/plugins/vpp/binapi/vpp2001_379/memif"
vpp_tapv2 "github.com/ligato/vpp-agent/plugins/vpp/binapi/vpp2001_379/tapv2"
vpp_vmxnet3 "github.com/ligato/vpp-agent/plugins/vpp/binapi/vpp2001_379/vmxnet3"
vpp_vxlan "github.com/ligato/vpp-agent/plugins/vpp/binapi/vpp2001_379/vxlan"
vpp_vxlangpe "github.com/ligato/vpp-agent/plugins/vpp/binapi/vpp2001_379/vxlan_gpe"
"github.com/ligato/vpp-agent/plugins/vpp/ifplugin/vppcalls"
)
const (
// allInterfaces defines unspecified interface index
allInterfaces = ^uint32(0)
)
const (
// Default VPP MTU value
defaultVPPMtu = 9216
// MAC length
macLength = 6
)
func getMtu(vppMtu uint16) uint32 {
// If default VPP MTU value is set, return 0 (it means MTU was not set in the NB config)
if vppMtu == defaultVPPMtu {
return 0
}
return uint32(vppMtu)
}
func (h *InterfaceVppHandler) DumpInterfacesByType(reqType ifs.Interface_Type) (map[uint32]*vppcalls.InterfaceDetails, error) {
// Dump all
ifs, err := h.DumpInterfaces()
if err != nil {
return nil, err
}
// Filter by type
for ifIdx, ifData := range ifs {
if ifData.Interface.Type != reqType {
delete(ifs, ifIdx)
}
}
return ifs, nil
}
func (h *InterfaceVppHandler) dumpInterfaces(ifIdxs ...uint32) (map[uint32]*vppcalls.InterfaceDetails, error) {
// map for the resulting interfaces
interfaces := make(map[uint32]*vppcalls.InterfaceDetails)
ifIdx := allInterfaces
if len(ifIdxs) > 0 {
ifIdx = ifIdxs[0]
}
// First, dump all interfaces to create initial data.
reqCtx := h.callsChannel.SendMultiRequest(&vpp_ifs.SwInterfaceDump{
SwIfIndex: vpp_ifs.InterfaceIndex(ifIdx),
})
for {
ifDetails := &vpp_ifs.SwInterfaceDetails{}
stop, err := reqCtx.ReceiveReply(ifDetails)
if stop {
break
}
if err != nil {
return nil, fmt.Errorf("failed to dump interface: %v", err)
}
ifaceName := strings.TrimRight(ifDetails.InterfaceName, "\x00")
physAddr := make(net.HardwareAddr, macLength)
copy(physAddr, ifDetails.L2Address[:])
details := &vppcalls.InterfaceDetails{
Interface: &ifs.Interface{
Name: strings.TrimRight(ifDetails.Tag, "\x00"),
// the type may be amended later by further dumps
Type: guessInterfaceType(ifaceName),
Enabled: isAdminStateUp(ifDetails.Flags),
PhysAddress: net.HardwareAddr(ifDetails.L2Address[:]).String(),
Mtu: getMtu(ifDetails.LinkMtu),
},
Meta: &vppcalls.InterfaceMeta{
SwIfIndex: uint32(ifDetails.SwIfIndex),
SupSwIfIndex: ifDetails.SupSwIfIndex,
L2Address: physAddr,
InternalName: ifaceName,
IsAdminStateUp: isAdminStateUp(ifDetails.Flags),
IsLinkStateUp: isLinkStateUp(ifDetails.Flags),
LinkDuplex: uint32(ifDetails.LinkDuplex),
LinkMTU: ifDetails.LinkMtu,
MTU: ifDetails.Mtu,
LinkSpeed: ifDetails.LinkSpeed,
SubID: ifDetails.SubID,
Tag: strings.TrimRight(ifDetails.Tag, "\x00"),
},
}
// sub interface
if ifDetails.SupSwIfIndex != uint32(ifDetails.SwIfIndex) {
details.Interface.Type = ifs.Interface_SUB_INTERFACE
details.Interface.Link = &ifs.Interface_Sub{
Sub: &ifs.SubInterface{
ParentName: interfaces[ifDetails.SupSwIfIndex].Interface.Name,
SubId: ifDetails.SubID,
TagRwOption: getTagRwOption(ifDetails.VtrOp),
PushDot1Q: uintToBool(uint8(ifDetails.VtrPushDot1q)),
Tag1: ifDetails.VtrTag1,
Tag2: ifDetails.VtrTag2,
},
}
}
// Fill name for physical interfaces (they are mostly without tag)
switch details.Interface.Type {
case ifs.Interface_DPDK:
details.Interface.Name = ifaceName
case ifs.Interface_AF_PACKET:
details.Interface.Link = &ifs.Interface_Afpacket{
Afpacket: &ifs.AfpacketLink{
HostIfName: strings.TrimPrefix(ifaceName, "host-"),
},
}
}
interfaces[uint32(ifDetails.SwIfIndex)] = details
}
return interfaces, nil
}
func (h *InterfaceVppHandler) DumpInterfaces() (map[uint32]*vppcalls.InterfaceDetails, error) {
interfaces, err := h.dumpInterfaces()
if err != nil {
return nil, err
}
// Get DHCP clients
dhcpClients, err := h.DumpDhcpClients()
if err != nil {
return nil, fmt.Errorf("failed to dump interface DHCP clients: %v", err)
}
// Get IP addresses before VRF
err = h.dumpIPAddressDetails(interfaces, false, dhcpClients)
if err != nil {
return nil, err
}
err = h.dumpIPAddressDetails(interfaces, true, dhcpClients)
if err != nil {
return nil, err
}
// Get unnumbered interfaces
unnumbered, err := h.dumpUnnumberedDetails()
if err != nil {
return nil, fmt.Errorf("failed to dump unnumbered interfaces: %v", err)
}
// dump VXLAN details before VRFs (used by isIpv6Interface)
err = h.dumpVxlanDetails(interfaces)
if err != nil {
return nil, err
}
err = h.dumpVxLanGpeDetails(interfaces)
if err != nil {
return nil, err
}
// Get interface VRF for every IP family, fill DHCP if set and resolve unnumbered interface setup
for _, ifData := range interfaces {
// VRF is stored in metadata for both, IPv4 and IPv6. If the interface is an IPv6 interface (it contains at least
// one IPv6 address), appropriate VRF is stored also in modelled data
ipv4Vrf, err := h.GetInterfaceVrf(ifData.Meta.SwIfIndex)
if err != nil {
return nil, fmt.Errorf("interface dump: failed to get IPv4 VRF from interface %d: %v",
ifData.Meta.SwIfIndex, err)
}
ifData.Meta.VrfIPv4 = ipv4Vrf
ipv6Vrf, err := h.GetInterfaceVrfIPv6(ifData.Meta.SwIfIndex)
if err != nil {
return nil, fmt.Errorf("interface dump: failed to get IPv6 VRF from interface %d: %v",
ifData.Meta.SwIfIndex, err)
}
ifData.Meta.VrfIPv6 = ipv6Vrf
if isIPv6If, err := isIpv6Interface(ifData.Interface); err != nil {
return interfaces, err
} else if isIPv6If {
ifData.Interface.Vrf = ipv6Vrf
} else {
ifData.Interface.Vrf = ipv4Vrf
}
// DHCP
dhcpData, ok := dhcpClients[ifData.Meta.SwIfIndex]
if ok {
ifData.Interface.SetDhcpClient = true
ifData.Meta.Dhcp = dhcpData
}
// Unnumbered
ifWithIPIdx, ok := unnumbered[ifData.Meta.SwIfIndex]
if ok {
// Find unnumbered interface
var ifWithIPName string
ifWithIP, ok := interfaces[ifWithIPIdx]
if ok {
ifWithIPName = ifWithIP.Interface.Name
} else {
h.log.Debugf("cannot find name of the ip-interface for unnumbered %s", ifData.Interface.Name)
ifWithIPName = "<unknown>"
}
ifData.Interface.Unnumbered = &ifs.Interface_Unnumbered{
InterfaceWithIp: ifWithIPName,
}
}
}
err = h.dumpMemifDetails(interfaces)
if err != nil {
return nil, err
}
err = h.dumpTapDetails(interfaces)
if err != nil {
return nil, err
}
err = h.dumpIPSecTunnelDetails(interfaces)
if err != nil {
return nil, err
}
err = h.dumpVmxNet3Details(interfaces)
if err != nil {
return nil, err
}
err = h.dumpBondDetails(interfaces)
if err != nil {
return nil, err
}
err = h.dumpGreDetails(interfaces)
if err != nil {
return nil, err
}
// Rx-placement dump is last since it uses interface type-specific data
err = h.dumpRxPlacement(interfaces)
if err != nil {
return nil, err
}
return interfaces, nil
}
func (h *InterfaceVppHandler) DumpMemifSocketDetails() (map[string]uint32, error) {
memifSocketMap := make(map[string]uint32)
reqCtx := h.callsChannel.SendMultiRequest(&vpp_memif.MemifSocketFilenameDump{})
for {
socketDetails := &vpp_memif.MemifSocketFilenameDetails{}
stop, err := reqCtx.ReceiveReply(socketDetails)
if stop {
break // Break from the loop.
}
if err != nil {
return memifSocketMap, fmt.Errorf("failed to dump memif socket filename details: %v", err)
}
filename := strings.SplitN(socketDetails.SocketFilename, "\x00", 2)[0]
memifSocketMap[filename] = socketDetails.SocketID
}
h.log.Debugf("Memif socket dump completed, found %d entries: %v", len(memifSocketMap), memifSocketMap)
return memifSocketMap, nil
}
// DumpDhcpClients returns a slice of DhcpMeta with all interfaces and other DHCP-related information available
func (h *InterfaceVppHandler) DumpDhcpClients() (map[uint32]*vppcalls.Dhcp, error) {
dhcpData := make(map[uint32]*vppcalls.Dhcp)
reqCtx := h.callsChannel.SendMultiRequest(&vpp_dhcp.DHCPClientDump{})
for {
dhcpDetails := &vpp_dhcp.DHCPClientDetails{}
last, err := reqCtx.ReceiveReply(dhcpDetails)
if last {
break
}
if err != nil {
return nil, err
}
client := dhcpDetails.Client
lease := dhcpDetails.Lease
// DHCP client data
dhcpClient := &vppcalls.Client{
SwIfIndex: uint32(client.SwIfIndex),
Hostname: strings.TrimRight(client.Hostname, "\x00"),
ID: string(bytes.SplitN(client.ID, []byte{0x00}, 2)[0]),
WantDhcpEvent: client.WantDHCPEvent,
SetBroadcastFlag: client.SetBroadcastFlag,
PID: client.PID,
}
// DHCP lease data
dhcpLease := &vppcalls.Lease{
SwIfIndex: uint32(lease.SwIfIndex),
State: uint8(lease.State),
Hostname: strings.TrimRight(lease.Hostname, "\x00"),
IsIPv6: lease.IsIPv6,
HostAddress: dhcpAddressToString(lease.HostAddress, uint32(lease.MaskWidth), lease.IsIPv6),
RouterAddress: dhcpAddressToString(lease.RouterAddress, uint32(lease.MaskWidth), lease.IsIPv6),
HostMac: net.HardwareAddr(lease.HostMac[:]).String(),
}
// DHCP metadata
dhcpData[uint32(client.SwIfIndex)] = &vppcalls.Dhcp{
Client: dhcpClient,
Lease: dhcpLease,
}
}
return dhcpData, nil
}
// DumpInterfaceStates dumps link and administrative state of every interface.
func (h *InterfaceVppHandler) DumpInterfaceStates(ifIdxs ...uint32) (map[uint32]*vppcalls.InterfaceState, error) {
// Dump all interface states if not specified.
if len(ifIdxs) == 0 {
ifIdxs = []uint32{allInterfaces}
}
ifStates := make(map[uint32]*vppcalls.InterfaceState)
for _, ifIdx := range ifIdxs {
reqCtx := h.callsChannel.SendMultiRequest(&vpp_ifs.SwInterfaceDump{
SwIfIndex: vpp_ifs.InterfaceIndex(ifIdx),
})
for {
ifDetails := &vpp_ifs.SwInterfaceDetails{}
stop, err := reqCtx.ReceiveReply(ifDetails)
if stop {
break // Break from the loop.
}
if err != nil {
return nil, fmt.Errorf("failed to dump interface states: %v", err)
}
physAddr := make(net.HardwareAddr, macLength)
copy(physAddr, ifDetails.L2Address[:])
ifaceState := vppcalls.InterfaceState{
SwIfIndex: uint32(ifDetails.SwIfIndex),
InternalName: strings.TrimRight(ifDetails.InterfaceName, "\x00"),
PhysAddress: physAddr,
AdminState: adminStateToInterfaceStatus(ifDetails.Flags),
LinkState: linkStateToInterfaceStatus(ifDetails.Flags),
LinkDuplex: toLinkDuplex(ifDetails.LinkDuplex),
LinkSpeed: toLinkSpeed(ifDetails.LinkSpeed),
LinkMTU: ifDetails.LinkMtu,
}
ifStates[uint32(ifDetails.SwIfIndex)] = &ifaceState
}
}
return ifStates, nil
}
func toLinkDuplex(duplex vpp_ifs.LinkDuplex) ifs.InterfaceState_Duplex {
switch duplex {
case 1:
return ifs.InterfaceState_HALF
case 2:
return ifs.InterfaceState_FULL
default:
return ifs.InterfaceState_UNKNOWN_DUPLEX
}
}
const megabit = 1000000 // one megabit in bytes
func toLinkSpeed(speed uint32) uint64 {
switch speed {
case 1:
return 10 * megabit // 10M
case 2:
return 100 * megabit // 100M
case 4:
return 1000 * megabit // 1G
case 8:
return 10000 * megabit // 10G
case 16:
return 40000 * megabit // 40G
case 32:
return 100000 * megabit // 100G
default:
return 0
}
}
// Returns true if given interface contains at least one IPv6 address. For VxLAN, source and destination
// addresses are also checked
func isIpv6Interface(iface *ifs.Interface) (bool, error) {
if iface.Type == ifs.Interface_VXLAN_TUNNEL && iface.GetVxlan() != nil {
if ipAddress := net.ParseIP(iface.GetVxlan().SrcAddress); ipAddress.To4() == nil {
return true, nil
}
if ipAddress := net.ParseIP(iface.GetVxlan().DstAddress); ipAddress.To4() == nil {
return true, nil
}
}
for _, ifAddress := range iface.IpAddresses {
if ipAddress, _, err := net.ParseCIDR(ifAddress); err != nil {
return false, err
} else if ipAddress.To4() == nil {
return true, nil
}
}
return false, nil
}
// dumpIPAddressDetails dumps IP address details of interfaces from VPP and fills them into the provided interface map.
func (h *InterfaceVppHandler) dumpIPAddressDetails(ifs map[uint32]*vppcalls.InterfaceDetails, isIPv6 bool, dhcpClients map[uint32]*vppcalls.Dhcp) error {
// Dump IP addresses of each interface.
for idx := range ifs {
reqCtx := h.callsChannel.SendMultiRequest(&vpp_ip.IPAddressDump{
SwIfIndex: idx,
IsIPv6: boolToUint(isIPv6),
})
for {
ipDetails := &vpp_ip.IPAddressDetails{}
stop, err := reqCtx.ReceiveReply(ipDetails)
if stop {
break // Break from the loop.
}
if err != nil {
return fmt.Errorf("failed to dump interface %d IP address details: %v", idx, err)
}
h.processIPDetails(ifs, ipDetails, dhcpClients)
}
}
return nil
}
// processIPDetails processes ip.IPAddressDetails binary API message and fills the details into the provided interface map.
func (h *InterfaceVppHandler) processIPDetails(ifs map[uint32]*vppcalls.InterfaceDetails, ipDetails *vpp_ip.IPAddressDetails, dhcpClients map[uint32]*vppcalls.Dhcp) {
ifDetails, ifIdxExists := ifs[ipDetails.SwIfIndex]
if !ifIdxExists {
return
}
var ipAddr string
ipByte := make([]byte, 16)
copy(ipByte[:], ipDetails.Prefix.Address.Un.XXX_UnionData[:])
if ipDetails.Prefix.Address.Af == vpp_ip.ADDRESS_IP6 {
ipAddr = fmt.Sprintf("%s/%d", net.IP(ipByte).To16().String(), uint32(ipDetails.Prefix.Len))
} else {
ipAddr = fmt.Sprintf("%s/%d", net.IP(ipByte[:4]).To4().String(), uint32(ipDetails.Prefix.Len))
}
// skip IP addresses given by DHCP
if dhcpClient, hasDhcpClient := dhcpClients[ipDetails.SwIfIndex]; hasDhcpClient {
if dhcpClient.Lease != nil && dhcpClient.Lease.HostAddress == ipAddr {
return
}
}
ifDetails.Interface.IpAddresses = append(ifDetails.Interface.IpAddresses, ipAddr)
}
// dumpMemifDetails dumps memif interface details from VPP and fills them into the provided interface map.
func (h *InterfaceVppHandler) dumpMemifDetails(interfaces map[uint32]*vppcalls.InterfaceDetails) error {
// Dump all memif sockets
memifSocketMap, err := h.DumpMemifSocketDetails()
if err != nil {
return err
}
reqCtx := h.callsChannel.SendMultiRequest(&vpp_memif.MemifDump{})
for {
memifDetails := &vpp_memif.MemifDetails{}
stop, err := reqCtx.ReceiveReply(memifDetails)
if stop {
break // Break from the loop.
}
if err != nil {
return fmt.Errorf("failed to dump memif interface: %v", err)
}
_, ifIdxExists := interfaces[uint32(memifDetails.SwIfIndex)]
if !ifIdxExists {
continue
}
interfaces[uint32(memifDetails.SwIfIndex)].Interface.Link = &ifs.Interface_Memif{
Memif: &ifs.MemifLink{
Master: memifDetails.Role == 0,
Mode: memifModetoNB(memifDetails.Mode),
Id: memifDetails.ID,
//Secret: // TODO: Secret - not available in the binary API
SocketFilename: func(socketMap map[string]uint32) (filename string) {
for filename, id := range socketMap {
if memifDetails.SocketID == id {
return filename
}
}
// Socket for configured memif should exist
h.log.Warnf("Socket ID not found for memif %v", memifDetails.SwIfIndex)
return
}(memifSocketMap),
RingSize: memifDetails.RingSize,
BufferSize: uint32(memifDetails.BufferSize),
// TODO: RxQueues, TxQueues - not available in the binary API
//RxQueues:
//TxQueues:
},
}
interfaces[uint32(memifDetails.SwIfIndex)].Interface.Type = ifs.Interface_MEMIF
}
return nil
}
// dumpTapDetails dumps tap interface details from VPP and fills them into the provided interface map.
func (h *InterfaceVppHandler) dumpTapDetails(interfaces map[uint32]*vppcalls.InterfaceDetails) error {
// Original TAP v1 was DEPRECATED
// TAP v2
reqCtx := h.callsChannel.SendMultiRequest(&vpp_tapv2.SwInterfaceTapV2Dump{})
for {
tapDetails := &vpp_tapv2.SwInterfaceTapV2Details{}
stop, err := reqCtx.ReceiveReply(tapDetails)
if stop {
break // Break from the loop.
}
if err != nil {
return fmt.Errorf("failed to dump TAPv2 interface details: %v", err)
}
_, ifIdxExists := interfaces[tapDetails.SwIfIndex]
if !ifIdxExists {
continue
}
interfaces[tapDetails.SwIfIndex].Interface.Link = &ifs.Interface_Tap{
Tap: &ifs.TapLink{
Version: 2,
HostIfName: cleanString(tapDetails.HostIfName),
RxRingSize: uint32(tapDetails.RxRingSz),
TxRingSize: uint32(tapDetails.TxRingSz),
EnableGso: tapDetails.TapFlags&TapFlagGSO == TapFlagGSO,
},
}
interfaces[tapDetails.SwIfIndex].Interface.Type = ifs.Interface_TAP
}
return nil
}
// dumpVxlanDetails dumps VXLAN interface details from VPP and fills them into the provided interface map.
func (h *InterfaceVppHandler) dumpVxlanDetails(interfaces map[uint32]*vppcalls.InterfaceDetails) error {
reqCtx := h.callsChannel.SendMultiRequest(&vpp_vxlan.VxlanTunnelDump{
SwIfIndex: ^uint32(0),
})
for {
vxlanDetails := &vpp_vxlan.VxlanTunnelDetails{}
stop, err := reqCtx.ReceiveReply(vxlanDetails)
if stop {
break // Break from the loop.
}
if err != nil {
return fmt.Errorf("failed to dump VxLAN tunnel interface details: %v", err)
}
_, ifIdxExists := interfaces[vxlanDetails.SwIfIndex]
if !ifIdxExists {
continue
}
// Multicast interface
var multicastIfName string
_, exists := interfaces[vxlanDetails.McastSwIfIndex]
if exists {
multicastIfName = interfaces[vxlanDetails.McastSwIfIndex].Interface.Name
}
if vxlanDetails.IsIPv6 == 1 {
interfaces[vxlanDetails.SwIfIndex].Interface.Link = &ifs.Interface_Vxlan{
Vxlan: &ifs.VxlanLink{
Multicast: multicastIfName,
SrcAddress: net.IP(vxlanDetails.SrcAddress).To16().String(),
DstAddress: net.IP(vxlanDetails.DstAddress).To16().String(),
Vni: vxlanDetails.Vni,
},
}
} else {
interfaces[vxlanDetails.SwIfIndex].Interface.Link = &ifs.Interface_Vxlan{
Vxlan: &ifs.VxlanLink{
Multicast: multicastIfName,
SrcAddress: net.IP(vxlanDetails.SrcAddress[:4]).To4().String(),
DstAddress: net.IP(vxlanDetails.DstAddress[:4]).To4().String(),
Vni: vxlanDetails.Vni,
},
}
}
interfaces[vxlanDetails.SwIfIndex].Interface.Type = ifs.Interface_VXLAN_TUNNEL
}
return nil
}
// dumpVxlanDetails dumps VXLAN-GPE interface details from VPP and fills them into the provided interface map.
func (h *InterfaceVppHandler) dumpVxLanGpeDetails(interfaces map[uint32]*vppcalls.InterfaceDetails) error {
reqCtx := h.callsChannel.SendMultiRequest(&vpp_vxlangpe.VxlanGpeTunnelDump{SwIfIndex: ^uint32(0)})
for {
vxlanGpeDetails := &vpp_vxlangpe.VxlanGpeTunnelDetails{}
stop, err := reqCtx.ReceiveReply(vxlanGpeDetails)
if stop {
break // Break from the loop.
}
if err != nil {
return fmt.Errorf("failed to dump VxLAN-GPE tunnel interface details: %v", err)
}
_, ifIdxExists := interfaces[vxlanGpeDetails.SwIfIndex]
if !ifIdxExists {
continue
}
// Multicast interface
var multicastIfName string
_, exists := interfaces[vxlanGpeDetails.McastSwIfIndex]
if exists {
multicastIfName = interfaces[vxlanGpeDetails.McastSwIfIndex].Interface.Name
}
vxLan := &ifs.VxlanLink{
Multicast: multicastIfName,
Vni: vxlanGpeDetails.Vni,
Gpe: &ifs.VxlanLink_Gpe{
DecapVrfId: vxlanGpeDetails.DecapVrfID,
Protocol: getVxLanGpeProtocol(vxlanGpeDetails.Protocol),
},
}
if vxlanGpeDetails.IsIPv6 == 1 {
vxLan.SrcAddress = net.IP(vxlanGpeDetails.Local).To16().String()
vxLan.DstAddress = net.IP(vxlanGpeDetails.Remote).To16().String()
} else {
vxLan.SrcAddress = net.IP(vxlanGpeDetails.Local[:4]).To4().String()
vxLan.DstAddress = net.IP(vxlanGpeDetails.Remote[:4]).To4().String()
}
interfaces[vxlanGpeDetails.SwIfIndex].Interface.Link = &ifs.Interface_Vxlan{Vxlan: vxLan}
interfaces[vxlanGpeDetails.SwIfIndex].Interface.Type = ifs.Interface_VXLAN_TUNNEL
}
return nil
}
// dumpIPSecTunnelDetails dumps IPSec tunnel interfaces from the VPP and fills them into the provided interface map.
func (h *InterfaceVppHandler) dumpIPSecTunnelDetails(interfaces map[uint32]*vppcalls.InterfaceDetails) error {
// tunnel interfaces are a part of security association dump
var tunnels []*vpp_ipsec.IpsecSaDetails
req := &vpp_ipsec.IpsecSaDump{
SaID: ^uint32(0),
}
requestCtx := h.callsChannel.SendMultiRequest(req)
for {
saDetails := &vpp_ipsec.IpsecSaDetails{}
stop, err := requestCtx.ReceiveReply(saDetails)
if stop {
break
}
if err != nil {
return err
}
// skip non-tunnel security associations
if saDetails.SwIfIndex != ^uint32(0) {
tunnels = append(tunnels, saDetails)
}
}
// every tunnel interface is returned in two API calls. To reconstruct the correct proto-modelled data,
// first appearance is cached, and when the second part arrives, data are completed and stored.
tunnelParts := make(map[uint32]*vpp_ipsec.IpsecSaDetails)
for _, tunnel := range tunnels {
// first appearance is stored in the map, the second one is used in configuration.
firstSaData, ok := tunnelParts[tunnel.SwIfIndex]
if !ok {
tunnelParts[tunnel.SwIfIndex] = tunnel
continue
}
local := firstSaData
remote := tunnel
// verify data for local & remote
if err := verifyIPSecTunnelDetails(local, remote); err != nil {
h.log.Warnf("IPSec SA dump for tunnel interface data does not match: %v", err)
continue
}
var localIP, remoteIP net.IP
if tunnel.Entry.TunnelDst.Af == vpp_ipsec.ADDRESS_IP6 {
localSrc := local.Entry.TunnelSrc.Un.GetIP6()
remoteSrc := remote.Entry.TunnelSrc.Un.GetIP6()
localIP, remoteIP = net.IP(localSrc[:]), net.IP(remoteSrc[:])
} else {
localSrc := local.Entry.TunnelSrc.Un.GetIP4()
remoteSrc := remote.Entry.TunnelSrc.Un.GetIP4()
localIP, remoteIP = net.IP(localSrc[:]), net.IP(remoteSrc[:])
}
ifDetails, ok := interfaces[tunnel.SwIfIndex]
if !ok {
h.log.Warnf("ipsec SA dump returned unrecognized swIfIndex: %v", tunnel.SwIfIndex)
continue
}
ifDetails.Interface.Type = ifs.Interface_IPSEC_TUNNEL
ifDetails.Interface.Link = &ifs.Interface_Ipsec{
Ipsec: &ifs.IPSecLink{
Esn: (tunnel.Entry.Flags & vpp_ipsec.IPSEC_API_SAD_FLAG_USE_ESN) != 0,
AntiReplay: (tunnel.Entry.Flags & vpp_ipsec.IPSEC_API_SAD_FLAG_USE_ANTI_REPLAY) != 0,
LocalIp: localIP.String(),
RemoteIp: remoteIP.String(),
LocalSpi: local.Entry.Spi,
RemoteSpi: remote.Entry.Spi,
CryptoAlg: ipsec.CryptoAlg(tunnel.Entry.CryptoAlgorithm),
LocalCryptoKey: hex.EncodeToString(local.Entry.CryptoKey.Data[:local.Entry.CryptoKey.Length]),
RemoteCryptoKey: hex.EncodeToString(remote.Entry.CryptoKey.Data[:remote.Entry.CryptoKey.Length]),
IntegAlg: ipsec.IntegAlg(tunnel.Entry.IntegrityAlgorithm),
LocalIntegKey: hex.EncodeToString(local.Entry.IntegrityKey.Data[:local.Entry.IntegrityKey.Length]),
RemoteIntegKey: hex.EncodeToString(remote.Entry.IntegrityKey.Data[:remote.Entry.IntegrityKey.Length]),
EnableUdpEncap: (tunnel.Entry.Flags & vpp_ipsec.IPSEC_API_SAD_FLAG_UDP_ENCAP) != 0,
},
}
}
return nil
}
func verifyIPSecTunnelDetails(local, remote *vpp_ipsec.IpsecSaDetails) error {
if local.SwIfIndex != remote.SwIfIndex {
return fmt.Errorf("swIfIndex data mismatch (local: %v, remote: %v)",
local.SwIfIndex, remote.SwIfIndex)
}
localIsTunnel, remoteIsTunnel := local.Entry.Flags&vpp_ipsec.IPSEC_API_SAD_FLAG_IS_TUNNEL, remote.Entry.Flags&vpp_ipsec.IPSEC_API_SAD_FLAG_IS_TUNNEL
if localIsTunnel != remoteIsTunnel {
return fmt.Errorf("tunnel data mismatch (local: %v, remote: %v)",
localIsTunnel, remoteIsTunnel)
}
localSrc, localDst := local.Entry.TunnelSrc.Un.XXX_UnionData, local.Entry.TunnelDst.Un.XXX_UnionData
remoteSrc, remoteDst := remote.Entry.TunnelSrc.Un.XXX_UnionData, remote.Entry.TunnelDst.Un.XXX_UnionData
if (local.Entry.Flags&vpp_ipsec.IPSEC_API_SAD_FLAG_IS_TUNNEL_V6) != (remote.Entry.Flags&vpp_ipsec.IPSEC_API_SAD_FLAG_IS_TUNNEL_V6) ||
!bytes.Equal(localSrc[:], remoteDst[:]) ||
!bytes.Equal(localDst[:], remoteSrc[:]) {
return fmt.Errorf("src/dst IP mismatch (local: %+v, remote: %+v)",
local.Entry, remote.Entry)
}
return nil
}
// dumpVmxNet3Details dumps VmxNet3 interface details from VPP and fills them into the provided interface map.
func (h *InterfaceVppHandler) dumpVmxNet3Details(interfaces map[uint32]*vppcalls.InterfaceDetails) error {
reqCtx := h.callsChannel.SendMultiRequest(&vpp_vmxnet3.Vmxnet3Dump{})
for {
vmxnet3Details := &vpp_vmxnet3.Vmxnet3Details{}
stop, err := reqCtx.ReceiveReply(vmxnet3Details)
if stop {
break // Break from the loop.
}
if err != nil {
return fmt.Errorf("failed to dump VmxNet3 tunnel interface details: %v", err)
}
_, ifIdxExists := interfaces[vmxnet3Details.SwIfIndex]
if !ifIdxExists {
continue
}
interfaces[vmxnet3Details.SwIfIndex].Interface.Link = &ifs.Interface_VmxNet3{
VmxNet3: &ifs.VmxNet3Link{
RxqSize: uint32(vmxnet3Details.RxCount),
TxqSize: uint32(vmxnet3Details.TxCount),
},
}
interfaces[vmxnet3Details.SwIfIndex].Interface.Type = ifs.Interface_VMXNET3_INTERFACE
interfaces[vmxnet3Details.SwIfIndex].Meta.Pci = vmxnet3Details.PciAddr
}
return nil
}
// dumpBondDetails dumps bond interface details from VPP and fills them into the provided interface map.
func (h *InterfaceVppHandler) dumpBondDetails(interfaces map[uint32]*vppcalls.InterfaceDetails) error {
bondIndexes := make([]uint32, 0)
reqCtx := h.callsChannel.SendMultiRequest(&vpp_bond.SwInterfaceBondDump{})
for {
bondDetails := &vpp_bond.SwInterfaceBondDetails{}
stop, err := reqCtx.ReceiveReply(bondDetails)
if err != nil {
return fmt.Errorf("failed to dump bond interface details: %v", err)
}
if stop {
break
}
_, ifIdxExists := interfaces[uint32(bondDetails.SwIfIndex)]
if !ifIdxExists {
continue
}
interfaces[uint32(bondDetails.SwIfIndex)].Interface.Link = &ifs.Interface_Bond{
Bond: &ifs.BondLink{
Id: bondDetails.ID,
Mode: getBondIfMode(bondDetails.Mode),
Lb: getBondLoadBalance(bondDetails.Lb),
},
}
interfaces[uint32(bondDetails.SwIfIndex)].Interface.Type = ifs.Interface_BOND_INTERFACE
bondIndexes = append(bondIndexes, uint32(bondDetails.SwIfIndex))
}
// get slave interfaces for bonds
for _, bondIdx := range bondIndexes {
var bondSlaves []*ifs.BondLink_BondedInterface
reqSlCtx := h.callsChannel.SendMultiRequest(&vpp_bond.SwInterfaceSlaveDump{
SwIfIndex: vpp_bond.InterfaceIndex(bondIdx),
})
for {
slaveDetails := &vpp_bond.SwInterfaceSlaveDetails{}
stop, err := reqSlCtx.ReceiveReply(slaveDetails)
if err != nil {
return fmt.Errorf("failed to dump bond slave details: %v", err)
}
if stop {
break
}
slaveIf, ifIdxExists := interfaces[uint32(slaveDetails.SwIfIndex)]
if !ifIdxExists {
continue
}
bondSlaves = append(bondSlaves, &ifs.BondLink_BondedInterface{
Name: slaveIf.Interface.Name,
IsPassive: slaveDetails.IsPassive,
IsLongTimeout: slaveDetails.IsLongTimeout,
})
interfaces[bondIdx].Interface.GetBond().BondedInterfaces = bondSlaves
}
}
return nil
}
func (h *InterfaceVppHandler) dumpGreDetails(interfaces map[uint32]*vppcalls.InterfaceDetails) error {
msg := &vpp_gre.GreTunnelDump{SwIfIndex: vpp_gre.InterfaceIndex(^uint32(0))}
reqCtx := h.callsChannel.SendMultiRequest(msg)
for {
greDetails := &vpp_gre.GreTunnelDetails{}
stop, err := reqCtx.ReceiveReply(greDetails)
if stop {
break
}
if err != nil {
return fmt.Errorf("failed to dump span: %v", err)
}
tunnel := greDetails.Tunnel
swIfIndex := uint32(tunnel.SwIfIndex)
var srcAddr, dstAddr net.IP
if tunnel.Src.Af == vpp_gre.ADDRESS_IP4 {
srcAddrArr := tunnel.Src.Un.GetIP4()
srcAddr = net.IP(srcAddrArr[:])
} else {
srcAddrArr := tunnel.Src.Un.GetIP6()
srcAddr = net.IP(srcAddrArr[:])
}
if tunnel.Dst.Af == vpp_gre.ADDRESS_IP4 {
dstAddrArr := tunnel.Dst.Un.GetIP4()
dstAddr = net.IP(dstAddrArr[:])
} else {
dstAddrArr := tunnel.Dst.Un.GetIP6()
dstAddr = net.IP(dstAddrArr[:])
}
interfaces[swIfIndex].Interface.Link = &ifs.Interface_Gre{
Gre: &ifs.GreLink{
TunnelType: getGreTunnelType(tunnel.Type),
SrcAddr: srcAddr.String(),
DstAddr: dstAddr.String(),
OuterFibId: tunnel.OuterFibID,
SessionId: uint32(tunnel.SessionID),
},
}
interfaces[swIfIndex].Interface.Type = ifs.Interface_GRE_TUNNEL
}
return nil
}
// dumpUnnumberedDetails returns a map of unnumbered interface indexes, every with interface index of element with IP
func (h *InterfaceVppHandler) dumpUnnumberedDetails() (map[uint32]uint32, error) {
unIfMap := make(map[uint32]uint32) // unnumbered/ip-interface
reqCtx := h.callsChannel.SendMultiRequest(&vpp_ip.IPUnnumberedDump{
SwIfIndex: ^uint32(0),
})
for {
unDetails := &vpp_ip.IPUnnumberedDetails{}
last, err := reqCtx.ReceiveReply(unDetails)
if last {
break
}
if err != nil {
return nil, err
}
unIfMap[unDetails.SwIfIndex] = unDetails.IPSwIfIndex
}
return unIfMap, nil
}
func (h *InterfaceVppHandler) dumpRxPlacement(interfaces map[uint32]*vppcalls.InterfaceDetails) error {
reqCtx := h.callsChannel.SendMultiRequest(&vpp_ifs.SwInterfaceRxPlacementDump{
SwIfIndex: vpp_ifs.InterfaceIndex(^uint32(0)),
})
for {
rxDetails := &vpp_ifs.SwInterfaceRxPlacementDetails{}
stop, err := reqCtx.ReceiveReply(rxDetails)
if err != nil {
return fmt.Errorf("failed to dump rx-placement details: %v", err)
}
if stop {
break
}
ifData, ok := interfaces[uint32(rxDetails.SwIfIndex)]
if !ok {
h.log.Warnf("Received rx-placement data for unknown interface with index %d", rxDetails.SwIfIndex)
continue
}
ifData.Interface.RxModes = append(ifData.Interface.RxModes,
&ifs.Interface_RxMode{
Queue: rxDetails.QueueID,
Mode: getRxModeType(rxDetails.Mode),
})
var worker uint32
if rxDetails.WorkerID > 0 {
worker = rxDetails.WorkerID - 1
}
ifData.Interface.RxPlacements = append(ifData.Interface.RxPlacements,
&ifs.Interface_RxPlacement{
Queue: rxDetails.QueueID,
Worker: worker,
MainThread: rxDetails.WorkerID == 0,
})
}
return nil
}
func dhcpAddressToString(address vpp_dhcp.Address, maskWidth uint32, isIPv6 bool) string {
dhcpIPByte := make([]byte, 16)
copy(dhcpIPByte[:], address.Un.XXX_UnionData[:])
if isIPv6 {
return fmt.Sprintf("%s/%d", net.IP(dhcpIPByte).To16().String(), maskWidth)
}
return fmt.Sprintf("%s/%d", net.IP(dhcpIPByte[:4]).To4().String(), maskWidth)
}
// guessInterfaceType attempts to guess the correct interface type from its internal name (as given by VPP).
// This is required mainly for those interface types, that do not provide dump binary API,
// such as loopback of af_packet.
func guessInterfaceType(ifName string) ifs.Interface_Type {
switch {