diff options
Diffstat (limited to 'vendor/github.com/prometheus/procfs/net_route.go')
-rw-r--r-- | vendor/github.com/prometheus/procfs/net_route.go | 143 |
1 files changed, 0 insertions, 143 deletions
diff --git a/vendor/github.com/prometheus/procfs/net_route.go b/vendor/github.com/prometheus/procfs/net_route.go deleted file mode 100644 index deb7029fe..000000000 --- a/vendor/github.com/prometheus/procfs/net_route.go +++ /dev/null @@ -1,143 +0,0 @@ -// Copyright 2023 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 ( - "bufio" - "bytes" - "fmt" - "io" - "strconv" - "strings" - - "github.com/prometheus/procfs/internal/util" -) - -const ( - blackholeRepresentation string = "*" - blackholeIfaceName string = "blackhole" - routeLineColumns int = 11 -) - -// A NetRouteLine represents one line from net/route. -type NetRouteLine struct { - Iface string - Destination uint32 - Gateway uint32 - Flags uint32 - RefCnt uint32 - Use uint32 - Metric uint32 - Mask uint32 - MTU uint32 - Window uint32 - IRTT uint32 -} - -func (fs FS) NetRoute() ([]NetRouteLine, error) { - return readNetRoute(fs.proc.Path("net", "route")) -} - -func readNetRoute(path string) ([]NetRouteLine, error) { - b, err := util.ReadFileNoStat(path) - if err != nil { - return nil, err - } - - routelines, err := parseNetRoute(bytes.NewReader(b)) - if err != nil { - return nil, fmt.Errorf("failed to read net route from %s: %w", path, err) - } - return routelines, nil -} - -func parseNetRoute(r io.Reader) ([]NetRouteLine, error) { - var routelines []NetRouteLine - - scanner := bufio.NewScanner(r) - scanner.Scan() - for scanner.Scan() { - fields := strings.Fields(scanner.Text()) - routeline, err := parseNetRouteLine(fields) - if err != nil { - return nil, err - } - routelines = append(routelines, *routeline) - } - return routelines, nil -} - -func parseNetRouteLine(fields []string) (*NetRouteLine, error) { - if len(fields) != routeLineColumns { - return nil, fmt.Errorf("invalid routeline, num of digits: %d", len(fields)) - } - iface := fields[0] - if iface == blackholeRepresentation { - iface = blackholeIfaceName - } - destination, err := strconv.ParseUint(fields[1], 16, 32) - if err != nil { - return nil, err - } - gateway, err := strconv.ParseUint(fields[2], 16, 32) - if err != nil { - return nil, err - } - flags, err := strconv.ParseUint(fields[3], 10, 32) - if err != nil { - return nil, err - } - refcnt, err := strconv.ParseUint(fields[4], 10, 32) - if err != nil { - return nil, err - } - use, err := strconv.ParseUint(fields[5], 10, 32) - if err != nil { - return nil, err - } - metric, err := strconv.ParseUint(fields[6], 10, 32) - if err != nil { - return nil, err - } - mask, err := strconv.ParseUint(fields[7], 16, 32) - if err != nil { - return nil, err - } - mtu, err := strconv.ParseUint(fields[8], 10, 32) - if err != nil { - return nil, err - } - window, err := strconv.ParseUint(fields[9], 10, 32) - if err != nil { - return nil, err - } - irtt, err := strconv.ParseUint(fields[10], 10, 32) - if err != nil { - return nil, err - } - routeline := &NetRouteLine{ - Iface: iface, - Destination: uint32(destination), - Gateway: uint32(gateway), - Flags: uint32(flags), - RefCnt: uint32(refcnt), - Use: uint32(use), - Metric: uint32(metric), - Mask: uint32(mask), - MTU: uint32(mtu), - Window: uint32(window), - IRTT: uint32(irtt), - } - return routeline, nil -} |