diff options
Diffstat (limited to 'vendor/github.com/vishvananda/netlink/class.go')
| -rw-r--r-- | vendor/github.com/vishvananda/netlink/class.go | 141 |
1 files changed, 137 insertions, 4 deletions
diff --git a/vendor/github.com/vishvananda/netlink/class.go b/vendor/github.com/vishvananda/netlink/class.go index 8ee13af48..dcc22d9e9 100644 --- a/vendor/github.com/vishvananda/netlink/class.go +++ b/vendor/github.com/vishvananda/netlink/class.go @@ -4,25 +4,76 @@ import ( "fmt" ) +// Class interfaces for all classes type Class interface { Attrs() *ClassAttrs Type() string } +// Generic networking statistics for netlink users. +// This file contains "gnet_" prefixed structs and relevant functions. +// See Documentation/networking/getn_stats.txt in Linux source code for more details. + +// GnetStatsBasic Ref: struct gnet_stats_basic { ... } +type GnetStatsBasic struct { + Bytes uint64 // number of seen bytes + Packets uint32 // number of seen packets +} + +// GnetStatsRateEst Ref: struct gnet_stats_rate_est { ... } +type GnetStatsRateEst struct { + Bps uint32 // current byte rate + Pps uint32 // current packet rate +} + +// GnetStatsRateEst64 Ref: struct gnet_stats_rate_est64 { ... } +type GnetStatsRateEst64 struct { + Bps uint64 // current byte rate + Pps uint64 // current packet rate +} + +// GnetStatsQueue Ref: struct gnet_stats_queue { ... } +type GnetStatsQueue struct { + Qlen uint32 // queue length + Backlog uint32 // backlog size of queue + Drops uint32 // number of dropped packets + Requeues uint32 // number of requues + Overlimits uint32 // number of enqueues over the limit +} + +// ClassStatistics representation based on generic networking statistics for netlink. +// See Documentation/networking/gen_stats.txt in Linux source code for more details. +type ClassStatistics struct { + Basic *GnetStatsBasic + Queue *GnetStatsQueue + RateEst *GnetStatsRateEst +} + +// NewClassStatistics Construct a ClassStatistics struct which fields are all initialized by 0. +func NewClassStatistics() *ClassStatistics { + return &ClassStatistics{ + Basic: &GnetStatsBasic{}, + Queue: &GnetStatsQueue{}, + RateEst: &GnetStatsRateEst{}, + } +} + // ClassAttrs represents a netlink class. A filter is associated with a link, // has a handle and a parent. The root filter of a device should have a // parent == HANDLE_ROOT. type ClassAttrs struct { - LinkIndex int - Handle uint32 - Parent uint32 - Leaf uint32 + LinkIndex int + Handle uint32 + Parent uint32 + Leaf uint32 + Statistics *ClassStatistics } func (q ClassAttrs) String() string { return fmt.Sprintf("{LinkIndex: %d, Handle: %s, Parent: %s, Leaf: %d}", q.LinkIndex, HandleStr(q.Handle), HandleStr(q.Parent), q.Leaf) } +// HtbClassAttrs stores the attributes of HTB class type HtbClassAttrs struct { // TODO handle all attributes Rate uint64 @@ -54,10 +105,12 @@ func (q HtbClass) String() string { return fmt.Sprintf("{Rate: %d, Ceil: %d, Buffer: %d, Cbuffer: %d}", q.Rate, q.Ceil, q.Buffer, q.Cbuffer) } +// Attrs returns the class attributes func (q *HtbClass) Attrs() *ClassAttrs { return &q.ClassAttrs } +// Type return the class type func (q *HtbClass) Type() string { return "htb" } @@ -69,10 +122,90 @@ type GenericClass struct { ClassType string } +// Attrs return the class attributes func (class *GenericClass) Attrs() *ClassAttrs { return &class.ClassAttrs } +// Type return the class type func (class *GenericClass) Type() string { return class.ClassType } + +// ServiceCurve is the way the HFSC curve are represented +type ServiceCurve struct { + m1 uint32 + d uint32 + m2 uint32 +} + +// Attrs return the parameters of the service curve +func (c *ServiceCurve) Attrs() (uint32, uint32, uint32) { + return c.m1, c.d, c.m2 +} + +// HfscClass is a representation of the HFSC class +type HfscClass struct { + ClassAttrs + Rsc ServiceCurve + Fsc ServiceCurve + Usc ServiceCurve +} + +// SetUsc sets the Usc curve +func (hfsc *HfscClass) SetUsc(m1 uint32, d uint32, m2 uint32) { + hfsc.Usc = ServiceCurve{m1: m1 / 8, d: d, m2: m2 / 8} +} + +// SetFsc sets the Fsc curve +func (hfsc *HfscClass) SetFsc(m1 uint32, d uint32, m2 uint32) { + hfsc.Fsc = ServiceCurve{m1: m1 / 8, d: d, m2: m2 / 8} +} + +// SetRsc sets the Rsc curve +func (hfsc *HfscClass) SetRsc(m1 uint32, d uint32, m2 uint32) { + hfsc.Rsc = ServiceCurve{m1: m1 / 8, d: d, m2: m2 / 8} +} + +// SetSC implements the SC from the tc CLI +func (hfsc *HfscClass) SetSC(m1 uint32, d uint32, m2 uint32) { + hfsc.Rsc = ServiceCurve{m1: m1 / 8, d: d, m2: m2 / 8} + hfsc.Fsc = ServiceCurve{m1: m1 / 8, d: d, m2: m2 / 8} +} + +// SetUL implements the UL from the tc CLI +func (hfsc *HfscClass) SetUL(m1 uint32, d uint32, m2 uint32) { + hfsc.Usc = ServiceCurve{m1: m1 / 8, d: d, m2: m2 / 8} +} + +// SetLS implements the LS from the tc CLI +func (hfsc *HfscClass) SetLS(m1 uint32, d uint32, m2 uint32) { + hfsc.Fsc = ServiceCurve{m1: m1 / 8, d: d, m2: m2 / 8} +} + +// NewHfscClass returns a new HFSC struct with the set parameters +func NewHfscClass(attrs ClassAttrs) *HfscClass { + return &HfscClass{ + ClassAttrs: attrs, + Rsc: ServiceCurve{}, + Fsc: ServiceCurve{}, + Usc: ServiceCurve{}, + } +} + +func (hfsc *HfscClass) String() string { + return fmt.Sprintf( + "{%s -- {RSC: {m1=%d d=%d m2=%d}} {FSC: {m1=%d d=%d m2=%d}} {USC: {m1=%d d=%d m2=%d}}}", + hfsc.Attrs(), hfsc.Rsc.m1*8, hfsc.Rsc.d, hfsc.Rsc.m2*8, hfsc.Fsc.m1*8, hfsc.Fsc.d, hfsc.Fsc.m2*8, hfsc.Usc.m1*8, hfsc.Usc.d, hfsc.Usc.m2*8, + ) +} + +// Attrs return the Hfsc parameters +func (hfsc *HfscClass) Attrs() *ClassAttrs { + return &hfsc.ClassAttrs +} + +// Type return the type of the class +func (hfsc *HfscClass) Type() string { + return "hfsc" +} |