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IPVS: Add support for parsing FWM virtual servers #48

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IPVS: Add support for parsing FWM virtual servers #48

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9e368f5
adds support for parsing FWM virtual servers
madddi May 1, 2017
085c02c
only fill needed fields in IPVSBackendStatus struct
madddi May 1, 2017
9a94a5b
adds tests for FWM virtual_servers
madddi May 1, 2017
e47f3f4
Merge branch 'master' into master
grobie May 2, 2017
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3 changes: 3 additions & 0 deletions fixtures/net/ip_vs
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Original file line number Diff line number Diff line change
Expand Up @@ -16,3 +16,6 @@ TCP [2620:0000:0000:0000:0000:0000:0000:0001]:0050 sh
-> [2620:0000:0000:0000:0000:0000:0000:0002]:0050 Route 1 0 0
-> [2620:0000:0000:0000:0000:0000:0000:0003]:0050 Route 1 0 0
-> [2620:0000:0000:0000:0000:0000:0000:0004]:0050 Route 1 1 1
FWM 10001000 wlc
-> C0A8321A:0CEA Route 0 0 1
-> C0A83215:0CEA Route 0 0 2
13 changes: 13 additions & 0 deletions ipvs.go
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Original file line number Diff line number Diff line change
Expand Up @@ -33,6 +33,8 @@ type IPVSBackendStatus struct {
LocalAddress net.IP
// The local (virtual) port.
LocalPort uint16
// The local firewall mark
LocalMark string
// The transport protocol (TCP, UDP).
Proto string
// The remote (real) IP address.
Expand Down Expand Up @@ -142,6 +144,7 @@ func parseIPVSBackendStatus(file io.Reader) ([]IPVSBackendStatus, error) {
status []IPVSBackendStatus
scanner = bufio.NewScanner(file)
proto string
localMark string
localAddress net.IP
localPort uint16
err error
Expand All @@ -160,10 +163,19 @@ func parseIPVSBackendStatus(file io.Reader) ([]IPVSBackendStatus, error) {
continue
}
proto = fields[0]
localMark = ""
localAddress, localPort, err = parseIPPort(fields[1])
if err != nil {
return nil, err
}
case fields[0] == "FWM":
if len(fields) < 2 {
continue
}
proto = fields[0]
localMark = fields[1]
localAddress = nil
localPort = 0
case fields[0] == "->":
if len(fields) < 6 {
continue
Expand All @@ -187,6 +199,7 @@ func parseIPVSBackendStatus(file io.Reader) ([]IPVSBackendStatus, error) {
status = append(status, IPVSBackendStatus{
LocalAddress: localAddress,
LocalPort: localPort,
LocalMark: localMark,
RemoteAddress: remoteAddress,
RemotePort: remotePort,
Proto: proto,
Expand Down
17 changes: 17 additions & 0 deletions ipvs_test.go
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Expand Up @@ -123,6 +123,23 @@ var (
Weight: 1,
ActiveConn: 1,
InactConn: 1,
{
LocalMark: "10001000",
RemoteAddress: net.ParseIP("192.168.50.26"),
RemotePort: 3306,
Proto: "FWM",
Weight: 0,
ActiveConn: 0,
InactConn: 1,
},
{
LocalMark: "10001000",
RemoteAddress: net.ParseIP("192.168.50.21"),
RemotePort: 3306,
Proto: "FWM",
Weight: 0,
ActiveConn: 0,
InactConn: 2,
},
}
)
Expand Down