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Update ipvs library to the new repo and upgrade library version

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This commit is contained in:
Ricardo Pchevuzinske Katz
2020-03-26 11:20:01 -03:00
parent f8e62e33c9
commit 5c48f209a5
71 changed files with 4060 additions and 811 deletions
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145
vendor/github.com/vishvananda/netlink/class_linux.go generated vendored
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@@ -1,14 +1,34 @@
package netlink
import (
"bytes"
"encoding/binary"
"encoding/hex"
"errors"
"fmt"
"syscall"
"github.com/vishvananda/netlink/nl"
"golang.org/x/sys/unix"
)
// NOTE: function is in here because it uses other linux functions
// Internal tc_stats representation in Go struct.
// This is for internal uses only to deserialize the payload of rtattr.
// After the deserialization, this should be converted into the canonical stats
// struct, ClassStatistics, in case of statistics of a class.
// Ref: struct tc_stats { ... }
type tcStats struct {
Bytes uint64 // Number of enqueued bytes
Packets uint32 // Number of enqueued packets
Drops uint32 // Packets dropped because of lack of resources
Overlimits uint32 // Number of throttle events when this flow goes out of allocated bandwidth
Bps uint32 // Current flow byte rate
Pps uint32 // Current flow packet rate
Qlen uint32
Backlog uint32
}
// NewHtbClass NOTE: function is in here because it uses other linux functions
func NewHtbClass(attrs ClassAttrs, cattrs HtbClassAttrs) *HtbClass {
mtu := 1600
rate := cattrs.Rate / 8
@@ -126,7 +146,9 @@ func classPayload(req *nl.NetlinkRequest, class Class) error {
req.AddData(nl.NewRtAttr(nl.TCA_KIND, nl.ZeroTerminated(class.Type())))
options := nl.NewRtAttr(nl.TCA_OPTIONS, nil)
if htb, ok := class.(*HtbClass); ok {
switch class.Type() {
case "htb":
htb := class.(*HtbClass)
opt := nl.TcHtbCopt{}
opt.Buffer = htb.Buffer
opt.Cbuffer = htb.Cbuffer
@@ -151,9 +173,18 @@ func classPayload(req *nl.NetlinkRequest, class Class) error {
return errors.New("HTB: failed to calculate ceil rate table")
}
opt.Ceil = tcceil
nl.NewRtAttrChild(options, nl.TCA_HTB_PARMS, opt.Serialize())
nl.NewRtAttrChild(options, nl.TCA_HTB_RTAB, SerializeRtab(rtab))
nl.NewRtAttrChild(options, nl.TCA_HTB_CTAB, SerializeRtab(ctab))
options.AddRtAttr(nl.TCA_HTB_PARMS, opt.Serialize())
options.AddRtAttr(nl.TCA_HTB_RTAB, SerializeRtab(rtab))
options.AddRtAttr(nl.TCA_HTB_CTAB, SerializeRtab(ctab))
case "hfsc":
hfsc := class.(*HfscClass)
opt := nl.HfscCopt{}
opt.Rsc.Set(hfsc.Rsc.Attrs())
opt.Fsc.Set(hfsc.Fsc.Attrs())
opt.Usc.Set(hfsc.Usc.Attrs())
options.AddRtAttr(nl.TCA_HFSC_RSC, nl.SerializeHfscCurve(&opt.Rsc))
options.AddRtAttr(nl.TCA_HFSC_FSC, nl.SerializeHfscCurve(&opt.Fsc))
options.AddRtAttr(nl.TCA_HFSC_USC, nl.SerializeHfscCurve(&opt.Usc))
}
req.AddData(options)
return nil
@@ -197,9 +228,10 @@ func (h *Handle) ClassList(link Link, parent uint32) ([]Class, error) {
}
base := ClassAttrs{
LinkIndex: int(msg.Ifindex),
Handle: msg.Handle,
Parent: msg.Parent,
LinkIndex: int(msg.Ifindex),
Handle: msg.Handle,
Parent: msg.Parent,
Statistics: nil,
}
var class Class
@@ -211,6 +243,8 @@ func (h *Handle) ClassList(link Link, parent uint32) ([]Class, error) {
switch classType {
case "htb":
class = &HtbClass{}
case "hfsc":
class = &HfscClass{}
default:
class = &GenericClass{ClassType: classType}
}
@@ -225,6 +259,26 @@ func (h *Handle) ClassList(link Link, parent uint32) ([]Class, error) {
if err != nil {
return nil, err
}
case "hfsc":
data, err := nl.ParseRouteAttr(attr.Value)
if err != nil {
return nil, err
}
_, err = parseHfscClassData(class, data)
if err != nil {
return nil, err
}
}
// For backward compatibility.
case nl.TCA_STATS:
base.Statistics, err = parseTcStats(attr.Value)
if err != nil {
return nil, err
}
case nl.TCA_STATS2:
base.Statistics, err = parseTcStats2(attr.Value)
if err != nil {
return nil, err
}
}
}
@@ -253,3 +307,78 @@ func parseHtbClassData(class Class, data []syscall.NetlinkRouteAttr) (bool, erro
}
return detailed, nil
}
func parseHfscClassData(class Class, data []syscall.NetlinkRouteAttr) (bool, error) {
hfsc := class.(*HfscClass)
detailed := false
for _, datum := range data {
m1, d, m2 := nl.DeserializeHfscCurve(datum.Value).Attrs()
switch datum.Attr.Type {
case nl.TCA_HFSC_RSC:
hfsc.Rsc = ServiceCurve{m1: m1, d: d, m2: m2}
case nl.TCA_HFSC_FSC:
hfsc.Fsc = ServiceCurve{m1: m1, d: d, m2: m2}
case nl.TCA_HFSC_USC:
hfsc.Usc = ServiceCurve{m1: m1, d: d, m2: m2}
}
}
return detailed, nil
}
func parseTcStats(data []byte) (*ClassStatistics, error) {
buf := &bytes.Buffer{}
buf.Write(data)
native := nl.NativeEndian()
tcStats := &tcStats{}
if err := binary.Read(buf, native, tcStats); err != nil {
return nil, err
}
stats := NewClassStatistics()
stats.Basic.Bytes = tcStats.Bytes
stats.Basic.Packets = tcStats.Packets
stats.Queue.Qlen = tcStats.Qlen
stats.Queue.Backlog = tcStats.Backlog
stats.Queue.Drops = tcStats.Drops
stats.Queue.Overlimits = tcStats.Overlimits
stats.RateEst.Bps = tcStats.Bps
stats.RateEst.Pps = tcStats.Pps
return stats, nil
}
func parseGnetStats(data []byte, gnetStats interface{}) error {
buf := &bytes.Buffer{}
buf.Write(data)
native := nl.NativeEndian()
return binary.Read(buf, native, gnetStats)
}
func parseTcStats2(data []byte) (*ClassStatistics, error) {
rtAttrs, err := nl.ParseRouteAttr(data)
if err != nil {
return nil, err
}
stats := NewClassStatistics()
for _, datum := range rtAttrs {
switch datum.Attr.Type {
case nl.TCA_STATS_BASIC:
if err := parseGnetStats(datum.Value, stats.Basic); err != nil {
return nil, fmt.Errorf("Failed to parse ClassStatistics.Basic with: %v\n%s",
err, hex.Dump(datum.Value))
}
case nl.TCA_STATS_QUEUE:
if err := parseGnetStats(datum.Value, stats.Queue); err != nil {
return nil, fmt.Errorf("Failed to parse ClassStatistics.Queue with: %v\n%s",
err, hex.Dump(datum.Value))
}
case nl.TCA_STATS_RATE_EST:
if err := parseGnetStats(datum.Value, stats.RateEst); err != nil {
return nil, fmt.Errorf("Failed to parse ClassStatistics.RateEst with: %v\n%s",
err, hex.Dump(datum.Value))
}
}
}
return stats, nil
}