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parse every IPv4 and IPv6 route

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☸️ 2021-09-21 05:38:37 +10:00 • committed by GitHub
parent 3bd813f545
commit a20fb139f5
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1 changed files with 13 additions and 11 deletions
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20
routing/update_linux.go
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@ -16,11 +16,12 @@ var (
func update() ([]Route, error) { func update() ([]Route, error) {
table = make([]Route, 0) table = make([]Route, 0)
output, err := core.Exec("netstat", []string{"-r", "-n"}) output, err := core.Exec("netstat", []string{"-r", "-n", "-4", "-6"})
if err != nil { if err != nil {
return nil, err return nil, err
} }
output = strings.ReplaceAll(output, "Next Hop", "NextHop") // because entries are separated by whitespace
output = strings.ReplaceAll(output, "Next Hop", "Gateway")
for _, line := range strings.Split(output, "\n") { for _, line := range strings.Split(output, "\n") {
if line = str.Trim(line); len(line) != 0 { if line = str.Trim(line); len(line) != 0 {
@ -40,32 +41,33 @@ func update() ([]Route, error) {
case "Destination": case "Destination":
route.Destination = s route.Destination = s
break break
case "Flag":
route.Flags = s
break
case "Flags": case "Flags":
route.Flags = s route.Flags = s
break break
case "Gateway": case "Gateway":
route.Gateway = s route.Gateway = s
break break
case "If":
route.Device = s
break
case "Iface": case "Iface":
route.Device = s route.Device = s
break break
case "Netif": case "Netif":
route.Device = s route.Device = s
break break
case "If":
route.Device = s
break
} }
} }
route.Default = strings.Contains(route.Flags, "G") route.Default = strings.Contains(route.Flags, "G")
if route.Destination != "" {
if strings.ContainsRune(route.Destination, '.') || strings.ContainsRune(route.Gateway, '.') { if strings.ContainsRune(route.Destination, '.') || strings.ContainsRune(route.Gateway, '.') {
route.Type = "IPv4" route.Type = IPv4
} else { } else {
route.Type = "IPv6" route.Type = IPv6
}
} }
table = append(table, route) table = append(table, route)