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package main
import (
"context"
"fmt"
"os"
"path/filepath"
"git.fd.io/govpp.git/api"
"github.com/edwarnicke/exechelper"
"github.com/edwarnicke/govpp/binapi/af_packet"
"github.com/edwarnicke/govpp/binapi/ethernet_types"
interfaces "github.com/edwarnicke/govpp/binapi/interface"
"github.com/edwarnicke/govpp/binapi/interface_types"
ip_types "github.com/edwarnicke/govpp/binapi/ip_types"
"github.com/edwarnicke/govpp/binapi/session"
"github.com/edwarnicke/govpp/binapi/tapv2"
"github.com/edwarnicke/govpp/binapi/vlib"
"github.com/edwarnicke/vpphelper"
)
var (
workDir, _ = os.Getwd()
)
type ConfFn func(context.Context, api.Connection) error
type Actions struct {
}
func configureProxyTcp(ifName0, ipAddr0, ifName1, ipAddr1 string) ConfFn {
return func(ctx context.Context,
vppConn api.Connection) error {
_, err := configureAfPacket(ctx, vppConn, ifName0, ipAddr0)
if err != nil {
fmt.Printf("failed to create af packet: %v", err)
return err
}
_, err = configureAfPacket(ctx, vppConn, ifName1, ipAddr1)
if err != nil {
fmt.Printf("failed to create af packet: %v", err)
return err
}
return nil
}
}
func (a *Actions) ConfigureVppProxy(args []string) *ActionResult {
ctx, cancel := newVppContext()
defer cancel()
con, vppErrCh := vpphelper.StartAndDialContext(ctx,
vpphelper.WithVppConfig(configTemplate),
vpphelper.WithRootDir(workDir))
exitOnErrCh(ctx, cancel, vppErrCh)
confFn := configureProxyTcp("vpp0", "10.0.0.2/24", "vpp1", "10.0.1.2/24")
err := confFn(ctx, con)
if err != nil {
return NewActionResult(err, ActionResultWithDesc("configuration failed"))
}
writeSyncFile(OkResult())
<-ctx.Done()
return nil
}
func (a *Actions) ConfigureEnvoyProxy(args []string) *ActionResult {
var startup Stanza
startup.
NewStanza("session").
Append("enable").
Append("use-app-socket-api").
Append("evt_qs_memfd_seg").
Append("event-queue-length 100000").Close()
ctx, cancel := newVppContext()
defer cancel()
con, vppErrCh := vpphelper.StartAndDialContext(ctx,
vpphelper.WithVppConfig(configTemplate+startup.ToString()),
vpphelper.WithRootDir(workDir))
exitOnErrCh(ctx, cancel, vppErrCh)
confFn := configureProxyTcp("vpp0", "10.0.0.2/24", "vpp1", "10.0.1.2/24")
err := confFn(ctx, con)
if err != nil {
return NewActionResult(err, ActionResultWithDesc("configuration failed"))
}
err0 := exechelper.Run("chmod 777 -R " + workDir)
if err0 != nil {
return NewActionResult(err, ActionResultWithDesc("setting permissions failed"))
}
writeSyncFile(OkResult())
<-ctx.Done()
return nil
}
func getArgs() string {
s := ""
for i := 2; i < len(os.Args); i++ {
s = s + " " + os.Args[i]
}
return s
}
func ApiCliInband(root, cmd string) *ActionResult {
ctx, _ := newVppContext()
con := vpphelper.DialContext(ctx, filepath.Join(root, "/var/run/vpp/api.sock"))
cliInband := vlib.CliInband{Cmd: cmd}
cliInbandReply, err := vlib.NewServiceClient(con).CliInband(ctx, &cliInband)
return NewActionResult(err, ActionResultWithStdout(cliInbandReply.Reply))
}
func (a *Actions) RunEchoSrvInternal(args []string) *ActionResult {
cmd := fmt.Sprintf("test echo server %s uri tcp://10.10.10.1/1234", getArgs())
return ApiCliInband(workDir, cmd)
}
func (a *Actions) RunEchoClnInternal(args []string) *ActionResult {
cmd := fmt.Sprintf("test echo client %s uri tcp://10.10.10.1/1234", getArgs())
return ApiCliInband(workDir, cmd)
}
func configure2vethsTopo(ifName, interfaceAddress, namespaceId string, secret uint64, optionalHardwareAddress ...string) ConfFn {
return func(ctx context.Context,
vppConn api.Connection) error {
var swIfIndex interface_types.InterfaceIndex
var err error
if optionalHardwareAddress == nil {
swIfIndex, err = configureAfPacket(ctx, vppConn, ifName, interfaceAddress)
} else {
swIfIndex, err = configureAfPacket(ctx, vppConn, ifName, interfaceAddress, optionalHardwareAddress[0])
}
if err != nil {
fmt.Printf("failed to create af packet: %v", err)
}
_, er := session.NewServiceClient(vppConn).AppNamespaceAddDelV2(ctx, &session.AppNamespaceAddDelV2{
Secret: secret,
SwIfIndex: swIfIndex,
NamespaceID: namespaceId,
})
if er != nil {
fmt.Printf("add app namespace: %v", err)
return err
}
_, er1 := session.NewServiceClient(vppConn).SessionEnableDisable(ctx, &session.SessionEnableDisable{
IsEnable: true,
})
if er1 != nil {
fmt.Printf("session enable %v", err)
return err
}
return nil
}
}
func (a *Actions) Configure2Veths(args []string) *ActionResult {
var startup Stanza
startup.
NewStanza("session").
Append("enable").
Append("use-app-socket-api").Close()
ctx, cancel := newVppContext()
defer cancel()
vppConfig, err := deserializeVppConfig(args[2])
if err != nil {
return NewActionResult(err, ActionResultWithDesc("deserializing configuration failed"))
}
con, vppErrCh := vpphelper.StartAndDialContext(ctx,
vpphelper.WithVppConfig(vppConfig.getTemplate()+startup.ToString()),
vpphelper.WithRootDir(workDir))
exitOnErrCh(ctx, cancel, vppErrCh)
var fn func(context.Context, api.Connection) error
switch vppConfig.Variant {
case "srv":
fn = configure2vethsTopo("vppsrv", "10.10.10.1/24", "1", 1)
case "srv-with-preset-hw-addr":
fn = configure2vethsTopo("vppsrv", "10.10.10.1/24", "1", 1, "00:00:5e:00:53:01")
case "cln":
fallthrough
default:
fn = configure2vethsTopo("vppcln", "10.10.10.2/24", "2", 2)
}
err = fn(ctx, con)
if err != nil {
return NewActionResult(err, ActionResultWithDesc("configuration failed"))
}
writeSyncFile(OkResult())
<-ctx.Done()
return nil
}
func configureAfPacket(ctx context.Context, vppCon api.Connection,
name, interfaceAddress string, optionalHardwareAddress ...string) (interface_types.InterfaceIndex, error) {
var err error
ifaceClient := interfaces.NewServiceClient(vppCon)
afPacketCreate := af_packet.AfPacketCreateV2{
UseRandomHwAddr: true,
HostIfName: name,
NumRxQueues: 1,
}
if len(optionalHardwareAddress) > 0 {
afPacketCreate.HwAddr, err = ethernet_types.ParseMacAddress(optionalHardwareAddress[0])
if err != nil {
fmt.Printf("failed to parse mac address: %v", err)
return 0, err
}
afPacketCreate.UseRandomHwAddr = false
}
afPacketCreateRsp, err := af_packet.NewServiceClient(vppCon).AfPacketCreateV2(ctx, &afPacketCreate)
if err != nil {
fmt.Printf("failed to create af packet: %v", err)
return 0, err
}
_, err = ifaceClient.SwInterfaceSetFlags(ctx, &interfaces.SwInterfaceSetFlags{
SwIfIndex: afPacketCreateRsp.SwIfIndex,
Flags: interface_types.IF_STATUS_API_FLAG_ADMIN_UP,
})
if err != nil {
fmt.Printf("set interface state up failed: %v\n", err)
return 0, err
}
ipPrefix, err := ip_types.ParseAddressWithPrefix(interfaceAddress)
if err != nil {
fmt.Printf("parse ip address %v\n", err)
return 0, err
}
ipAddress := &interfaces.SwInterfaceAddDelAddress{
IsAdd: true,
SwIfIndex: afPacketCreateRsp.SwIfIndex,
Prefix: ipPrefix,
}
_, errx := ifaceClient.SwInterfaceAddDelAddress(ctx, ipAddress)
if errx != nil {
fmt.Printf("add ip address %v\n", err)
return 0, err
}
return afPacketCreateRsp.SwIfIndex, nil
}
func (a *Actions) ConfigureHttpTps(args []string) *ActionResult {
ctx, cancel := newVppContext()
defer cancel()
con, vppErrCh := vpphelper.StartAndDialContext(ctx,
vpphelper.WithVppConfig(configTemplate))
exitOnErrCh(ctx, cancel, vppErrCh)
confFn := configureProxyTcp("vpp0", "10.0.0.2/24", "vpp1", "10.0.1.2/24")
err := confFn(ctx, con)
if err != nil {
return NewActionResult(err, ActionResultWithDesc("configuration failed"))
}
_, err = session.NewServiceClient(con).SessionEnableDisable(ctx, &session.SessionEnableDisable{
IsEnable: true,
})
if err != nil {
return NewActionResult(err, ActionResultWithDesc("configuration failed"))
}
Vppcli("", "http tps uri tcp://0.0.0.0/8080")
writeSyncFile(OkResult())
<-ctx.Done()
return nil
}
func (a *Actions) ConfigureTap(args []string) *ActionResult {
var startup Stanza
startup.
NewStanza("session").
Append("enable").
Append("use-app-socket-api").Close()
ctx, cancel := newVppContext()
defer cancel()
con, vppErrCh := vpphelper.StartAndDialContext(ctx,
vpphelper.WithRootDir(workDir),
vpphelper.WithVppConfig(configTemplate+startup.ToString()))
exitOnErrCh(ctx, cancel, vppErrCh)
ifaceClient := interfaces.NewServiceClient(con)
pref, err := ip_types.ParseIP4Prefix("10.10.10.2/24")
if err != nil {
return NewActionResult(err, ActionResultWithDesc("failed to parse ip4 address"))
}
createTapReply, err := tapv2.NewServiceClient(con).TapCreateV2(ctx, &tapv2.TapCreateV2{
HostIfNameSet: true,
HostIfName: "tap0",
HostIP4PrefixSet: true,
HostIP4Prefix: ip_types.IP4AddressWithPrefix(pref),
})
if err != nil {
return NewActionResult(err, ActionResultWithDesc("failed to configure tap"))
}
ipPrefix, err := ip_types.ParseAddressWithPrefix("10.10.10.1/24")
if err != nil {
return NewActionResult(err, ActionResultWithDesc("parsing ip address failed"))
}
ipAddress := &interfaces.SwInterfaceAddDelAddress{
IsAdd: true,
SwIfIndex: createTapReply.SwIfIndex,
Prefix: ipPrefix,
}
_, errx := ifaceClient.SwInterfaceAddDelAddress(ctx, ipAddress)
if errx != nil {
return NewActionResult(err, ActionResultWithDesc("configuring ip address failed"))
}
_, err = ifaceClient.SwInterfaceSetFlags(ctx, &interfaces.SwInterfaceSetFlags{
SwIfIndex: createTapReply.SwIfIndex,
Flags: interface_types.IF_STATUS_API_FLAG_ADMIN_UP,
})
if err != nil {
return NewActionResult(err, ActionResultWithDesc("failed to set interface state"))
}
_, err = session.NewServiceClient(con).SessionEnableDisable(ctx, &session.SessionEnableDisable{
IsEnable: true,
})
if err != nil {
return NewActionResult(err, ActionResultWithDesc("configuration failed"))
}
writeSyncFile(OkResult())
<-ctx.Done()
return nil
}
|
