mirror of https://github.com/vishvananda/netlink
128 lines
3.1 KiB
Go
128 lines
3.1 KiB
Go
package netlink
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import (
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"fmt"
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)
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type Class interface {
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Attrs() *ClassAttrs
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Type() string
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}
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// Generic networking statistics for netlink users.
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// This file contains "gnet_" prefixed structs and relevant functions.
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// See Documentation/networking/getn_stats.txt in Linux source code for more details.
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// Ref: struct gnet_stats_basic { ... }
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type GnetStatsBasic struct {
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Bytes uint64 // number of seen bytes
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Packets uint32 // number of seen packets
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}
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// Ref: struct gnet_stats_rate_est { ... }
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type GnetStatsRateEst struct {
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Bps uint32 // current byte rate
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Pps uint32 // current packet rate
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}
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// Ref: struct gnet_stats_rate_est64 { ... }
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type GnetStatsRateEst64 struct {
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Bps uint64 // current byte rate
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Pps uint64 // current packet rate
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}
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// Ref: struct gnet_stats_queue { ... }
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type GnetStatsQueue struct {
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Qlen uint32 // queue length
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Backlog uint32 // backlog size of queue
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Drops uint32 // number of dropped packets
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Requeues uint32 // number of requues
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Overlimits uint32 // number of enqueues over the limit
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}
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// Statistics representaion based on generic networking statisticsfor netlink.
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// See Documentation/networking/gen_stats.txt in Linux source code for more details.
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type ClassStatistics struct {
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Basic *GnetStatsBasic
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Queue *GnetStatsQueue
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RateEst *GnetStatsRateEst
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}
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// Construct a ClassStatistics struct which fields are all initialized by 0.
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func NewClassStatistics() *ClassStatistics {
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return &ClassStatistics{
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Basic: &GnetStatsBasic{},
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Queue: &GnetStatsQueue{},
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RateEst: &GnetStatsRateEst{},
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}
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}
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// ClassAttrs represents a netlink class. A filter is associated with a link,
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// has a handle and a parent. The root filter of a device should have a
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// parent == HANDLE_ROOT.
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type ClassAttrs struct {
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LinkIndex int
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Handle uint32
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Parent uint32
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Leaf uint32
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Statistics *ClassStatistics
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}
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func (q ClassAttrs) String() string {
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return fmt.Sprintf("{LinkIndex: %d, Handle: %s, Parent: %s, Leaf: %d}", q.LinkIndex, HandleStr(q.Handle), HandleStr(q.Parent), q.Leaf)
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}
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type HtbClassAttrs struct {
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// TODO handle all attributes
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Rate uint64
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Ceil uint64
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Buffer uint32
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Cbuffer uint32
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Quantum uint32
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Level uint32
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Prio uint32
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}
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func (q HtbClassAttrs) String() string {
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return fmt.Sprintf("{Rate: %d, Ceil: %d, Buffer: %d, Cbuffer: %d}", q.Rate, q.Ceil, q.Buffer, q.Cbuffer)
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}
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// HtbClass represents an Htb class
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type HtbClass struct {
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ClassAttrs
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Rate uint64
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Ceil uint64
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Buffer uint32
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Cbuffer uint32
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Quantum uint32
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Level uint32
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Prio uint32
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}
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func (q HtbClass) String() string {
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return fmt.Sprintf("{Rate: %d, Ceil: %d, Buffer: %d, Cbuffer: %d}", q.Rate, q.Ceil, q.Buffer, q.Cbuffer)
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}
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func (q *HtbClass) Attrs() *ClassAttrs {
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return &q.ClassAttrs
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}
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func (q *HtbClass) Type() string {
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return "htb"
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}
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// GenericClass classes represent types that are not currently understood
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// by this netlink library.
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type GenericClass struct {
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ClassAttrs
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ClassType string
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}
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func (class *GenericClass) Attrs() *ClassAttrs {
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return &class.ClassAttrs
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}
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func (class *GenericClass) Type() string {
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return class.ClassType
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}
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