-
Notifications
You must be signed in to change notification settings - Fork 0
/
vcsnet.go
202 lines (165 loc) · 4.57 KB
/
vcsnet.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
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
package vcsnet
import (
"fmt"
"github.com/influxdata/telegraf"
"github.com/influxdata/telegraf/filter"
"github.com/influxdata/telegraf/plugins/inputs"
"github.com/influxdata/telegraf/plugins/inputs/system"
"github.com/prometheus/procfs/sysfs"
"net"
"strings"
)
type VCSNetIOStats struct {
filter filter.Filter
ps system.PS
fs sysfs.FS
skipChecks bool
IgnoreProtocolStats bool
Interfaces []string
}
func (_ *VCSNetIOStats) Description() string {
return "Read metrics about network interface usage"
}
var netSampleConfig = `
## By default, telegraf gathers stats from any up interface (excluding loopback)
## Setting interfaces will tell it to gather these explicit interfaces,
## regardless of status.
##
# interfaces = ["eth0"]
##
## On linux systems telegraf also collects protocol stats.
## Setting ignore_protocol_stats to true will skip reporting of protocol metrics.
##
# ignore_protocol_stats = false
##
`
func (_ *VCSNetIOStats) SampleConfig() string {
return netSampleConfig
}
func (s *VCSNetIOStats) Gather(acc telegraf.Accumulator) error {
netio, err := s.ps.NetIO()
if err != nil {
return fmt.Errorf("error getting net io info: %s", err)
}
if s.filter == nil {
if s.filter, err = filter.Compile(s.Interfaces); err != nil {
return fmt.Errorf("error compiling filter: %s", err)
}
}
interfaces, err := net.Interfaces()
if err != nil {
return fmt.Errorf("error getting list of interfaces: %s", err)
}
interfacesByName := map[string]net.Interface{}
for _, iface := range interfaces {
interfacesByName[iface.Name] = iface
}
for _, io := range netio {
if len(s.Interfaces) != 0 {
var found bool
if s.filter.Match(io.Name) {
found = true
}
if !found {
continue
}
} else if !s.skipChecks {
iface, ok := interfacesByName[io.Name]
if !ok {
continue
}
if iface.Flags&net.FlagLoopback == net.FlagLoopback {
continue
}
if iface.Flags&net.FlagUp == 0 {
continue
}
}
tags := map[string]string{
"interface": io.Name,
}
if err != nil {
return fmt.Errorf("error getting list of interfaces: %s", err)
}
fields := map[string]interface{}{
"bytes_sent": io.BytesSent,
"bytes_recv": io.BytesRecv,
"packets_sent": io.PacketsSent,
"packets_recv": io.PacketsRecv,
"err_in": io.Errin,
"err_out": io.Errout,
"drop_in": io.Dropin,
"drop_out": io.Dropout,
}
speedBytes, upValue, err := s.getNetStatus(io.Name)
if err != nil {
return fmt.Errorf("error getting status of interfaces: %s", err)
}
fields["speedBytes"] = speedBytes
fields["upValue"] = upValue
acc.AddCounter("vcsnet", fields, tags)
}
// Get system wide stats for different network protocols
// (ignore these stats if the call fails)
if !s.IgnoreProtocolStats {
netprotos, _ := s.ps.NetProto()
fields := make(map[string]interface{})
for _, proto := range netprotos {
for stat, value := range proto.Stats {
name := fmt.Sprintf("%s_%s", strings.ToLower(proto.Protocol),
strings.ToLower(stat))
fields[name] = value
}
}
tags := map[string]string{
"interface": "all",
}
acc.AddFields("vcsnet", fields, tags)
}
return nil
}
func init() {
inputs.Add("vcsnet", func() telegraf.Input {
return &VCSNetIOStats{ps: system.NewSystemPS()}
})
}
//get list of NIC
func (s *VCSNetIOStats) getNetClassInfo() (sysfs.NetClass, error) {
//if not test, run real file system
var err error
if !s.skipChecks {
s.fs, err = sysfs.NewFS("/sys")
if err != nil {
return nil, fmt.Errorf("failed to open sysfs: %v", err)
}
}
netClass, err := s.fs.NewNetClass()
if err != nil {
return netClass, fmt.Errorf("error obtaining net class info: %s", err)
}
return netClass, nil
}
//get speed, operstate of NIC
func (s *VCSNetIOStats) getNetStatus(interfaceName string) (uint64, uint64, error) {
netClass, err := s.getNetClassInfo()
if err != nil {
return 0, 0, fmt.Errorf("could not get net class info: %s", err)
}
speedBytes := uint64(0)
upValue := uint64(0)
for _, ifaceInfo := range netClass {
if ifaceInfo.Name != interfaceName{
continue
} else {
if ifaceInfo.Speed != nil {
speedBytes = uint64(*ifaceInfo.Speed / 8 * 1000 * 1000)
}
if ifaceInfo.OperState == "up" {
upValue = 1
} else if ifaceInfo.OperState == "down" {
upValue = 0
}
}
}
return speedBytes, upValue, err
}