/
ofctrl_meter.go
133 lines (113 loc) · 3.17 KB
/
ofctrl_meter.go
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
// Copyright 2021 Antrea Authors
//
// 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 openflow
import (
"fmt"
"antrea.io/libOpenflow/openflow13"
"antrea.io/libOpenflow/util"
"antrea.io/ofnet/ofctrl"
)
type ofMeter struct {
ofctrl *ofctrl.Meter
bridge *OFBridge
}
func (m *ofMeter) Reset() {
m.ofctrl.Switch = m.bridge.ofSwitch
}
func (m *ofMeter) Add() error {
return m.ofctrl.Install()
}
func (m *ofMeter) Modify() error {
return m.ofctrl.Install()
}
func (m *ofMeter) Delete() error {
return m.ofctrl.Delete()
}
func (m *ofMeter) Type() EntryType {
return MeterEntry
}
func (m *ofMeter) KeyString() string {
return fmt.Sprintf("meter_id:%d", m.ofctrl.ID)
}
func (m *ofMeter) GetBundleMessage(entryOper OFOperation) (ofctrl.OpenFlowModMessage, error) {
var operation int
switch entryOper {
case AddMessage:
operation = openflow13.OFPMC_ADD
case ModifyMessage:
operation = openflow13.OFPMC_MODIFY
case DeleteMessage:
operation = openflow13.OFPMC_DELETE
}
message := m.ofctrl.GetBundleMessage(operation)
return message, nil
}
func (m *ofMeter) ResetMeterBands() Meter {
m.ofctrl.MeterBands = nil
return m
}
func (m *ofMeter) MeterBand() MeterBandBuilder {
return &meterBandBuilder{
meter: m,
meterBandHeader: openflow13.NewMeterBandHeader(),
prevLevel: 0,
experimenter: 0,
}
}
type meterBandBuilder struct {
meter *ofMeter
meterBandHeader *openflow13.MeterBandHeader
prevLevel uint8
experimenter uint32
}
func (m *meterBandBuilder) MeterType(meterType ofctrl.MeterType) MeterBandBuilder {
m.meterBandHeader.Type = uint16(meterType)
return m
}
func (m *meterBandBuilder) Rate(rate uint32) MeterBandBuilder {
m.meterBandHeader.Rate = rate
return m
}
func (m *meterBandBuilder) Burst(burst uint32) MeterBandBuilder {
m.meterBandHeader.BurstSize = burst
return m
}
func (m *meterBandBuilder) PrecLevel(precLevel uint8) MeterBandBuilder {
m.prevLevel = precLevel
return m
}
func (m *meterBandBuilder) Experimenter(experimenter uint32) MeterBandBuilder {
m.experimenter = experimenter
return m
}
func (m *meterBandBuilder) Done() Meter {
var mb util.Message
switch m.meterBandHeader.Type {
case uint16(ofctrl.MeterDrop):
mbDrop := new(openflow13.MeterBandDrop)
mbDrop.MeterBandHeader = *m.meterBandHeader
mb = mbDrop
case uint16(ofctrl.MeterDSCPRemark):
mbDscp := new(openflow13.MeterBandDSCP)
mbDscp.MeterBandHeader = *m.meterBandHeader
mbDscp.PrecLevel = m.prevLevel
mb = mbDscp
case uint16(ofctrl.MeterExperimenter):
mbExp := new(openflow13.MeterBandExperimenter)
mbExp.MeterBandHeader = *m.meterBandHeader
mbExp.Experimenter = m.experimenter
}
m.meter.ofctrl.AddMeterBand(&mb)
return m.meter
}