diff options
Diffstat (limited to 'vendor/github.com/prometheus/procfs/ipvs.go')
| -rw-r--r-- | vendor/github.com/prometheus/procfs/ipvs.go | 69 |
1 files changed, 52 insertions, 17 deletions
diff --git a/vendor/github.com/prometheus/procfs/ipvs.go b/vendor/github.com/prometheus/procfs/ipvs.go index e7012f73..e36d4a3b 100644 --- a/vendor/github.com/prometheus/procfs/ipvs.go +++ b/vendor/github.com/prometheus/procfs/ipvs.go @@ -1,3 +1,16 @@ +// Copyright 2018 The Prometheus 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 procfs import ( @@ -31,14 +44,16 @@ type IPVSStats struct { type IPVSBackendStatus struct { // The local (virtual) IP address. LocalAddress net.IP - // The local (virtual) port. - LocalPort uint16 - // The transport protocol (TCP, UDP). - Proto string // The remote (real) IP address. RemoteAddress net.IP + // The local (virtual) port. + LocalPort uint16 // The remote (real) port. RemotePort uint16 + // The local firewall mark + LocalMark string + // The transport protocol (TCP, UDP). + Proto string // The current number of active connections for this virtual/real address pair. ActiveConn uint64 // The current number of inactive connections for this virtual/real address pair. @@ -142,13 +157,14 @@ func parseIPVSBackendStatus(file io.Reader) ([]IPVSBackendStatus, error) { status []IPVSBackendStatus scanner = bufio.NewScanner(file) proto string + localMark string localAddress net.IP localPort uint16 err error ) for scanner.Scan() { - fields := strings.Fields(string(scanner.Text())) + fields := strings.Fields(scanner.Text()) if len(fields) == 0 { continue } @@ -160,10 +176,19 @@ 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 @@ -187,6 +212,7 @@ func parseIPVSBackendStatus(file io.Reader) ([]IPVSBackendStatus, error) { status = append(status, IPVSBackendStatus{ LocalAddress: localAddress, LocalPort: localPort, + LocalMark: localMark, RemoteAddress: remoteAddress, RemotePort: remotePort, Proto: proto, @@ -200,22 +226,31 @@ func parseIPVSBackendStatus(file io.Reader) ([]IPVSBackendStatus, error) { } func parseIPPort(s string) (net.IP, uint16, error) { - tmp := strings.SplitN(s, ":", 2) - - if len(tmp) != 2 { - return nil, 0, fmt.Errorf("invalid IP:Port: %s", s) - } + var ( + ip net.IP + err error + ) - if len(tmp[0]) != 8 && len(tmp[0]) != 32 { - return nil, 0, fmt.Errorf("invalid IP: %s", tmp[0]) + switch len(s) { + case 13: + ip, err = hex.DecodeString(s[0:8]) + if err != nil { + return nil, 0, err + } + case 46: + ip = net.ParseIP(s[1:40]) + if ip == nil { + return nil, 0, fmt.Errorf("invalid IPv6 address: %s", s[1:40]) + } + default: + return nil, 0, fmt.Errorf("unexpected IP:Port: %s", s) } - ip, err := hex.DecodeString(tmp[0]) - if err != nil { - return nil, 0, err + portString := s[len(s)-4:] + if len(portString) != 4 { + return nil, 0, fmt.Errorf("unexpected port string format: %s", portString) } - - port, err := strconv.ParseUint(tmp[1], 16, 16) + port, err := strconv.ParseUint(portString, 16, 16) if err != nil { return nil, 0, err } |