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This commit is contained in:
Mygod
2018-10-04 16:45:44 +08:00
parent 89234b37a4
commit 722855caf7
2 changed files with 26 additions and 27 deletions
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49
mobile/src/main/java/be/mygod/vpnhotspot/net/IpNeighbour.kt
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@@ -23,31 +23,30 @@ data class IpNeighbour(val ip: InetAddress, val dev: String, val lladdr: String,
private fun checkLladdrNotLoopback(lladdr: String) = if (lladdr == "00:00:00:00:00:00") "" else lladdr
fun parse(line: String): IpNeighbour? {
val match = parser.matchEntire(line)!!
val ip = parseNumericAddress(match.groupValues[2])
val dev = match.groupValues[4]
var lladdr = checkLladdrNotLoopback(match.groupValues[6])
// use ARP as fallback
if (dev.isNotEmpty() && lladdr.isEmpty()) lladdr = checkLladdrNotLoopback(arp()
.asSequence()
.filter { parseNumericAddress(it[ARP_IP_ADDRESS]) == ip && it[ARP_DEVICE] == dev }
.map { it[ARP_HW_ADDRESS] }
.singleOrNull() ?: "")
val state = if (match.groupValues[1].isNotEmpty() || lladdr.isEmpty()) State.DELETING else
when (match.groupValues[10]) {
"", "INCOMPLETE" -> State.INCOMPLETE
"REACHABLE", "DELAY", "STALE", "PROBE", "PERMANENT" -> State.VALID
"FAILED" -> State.FAILED
"NOARP" -> return null // skip
else -> throw IllegalArgumentException("Unknown state encountered: ${match.groupValues[10]}")
}
return IpNeighbour(ip, dev, lladdr, state)
}
fun parseNoThrow(line: String): IpNeighbour? = try {
parse(line)
} catch (e: Exception) {
Timber.w(IllegalArgumentException("Unable to parse line: $line", e))
null
return try {
val match = parser.matchEntire(line)!!
val ip = parseNumericAddress(match.groupValues[2])
val dev = match.groupValues[4]
var lladdr = checkLladdrNotLoopback(match.groupValues[6])
// use ARP as fallback
if (dev.isNotEmpty() && lladdr.isEmpty()) lladdr = checkLladdrNotLoopback(arp()
.asSequence()
.filter { parseNumericAddress(it[ARP_IP_ADDRESS]) == ip && it[ARP_DEVICE] == dev }
.map { it[ARP_HW_ADDRESS] }
.singleOrNull() ?: "")
val state = if (match.groupValues[1].isNotEmpty() || lladdr.isEmpty()) State.DELETING else
when (match.groupValues[10]) {
"", "INCOMPLETE" -> State.INCOMPLETE
"REACHABLE", "DELAY", "STALE", "PROBE", "PERMANENT" -> State.VALID
"FAILED" -> State.FAILED
"NOARP" -> return null // skip
else -> throw IllegalArgumentException("Unknown state encountered: ${match.groupValues[10]}")
}
IpNeighbour(ip, dev, lladdr, state)
} catch (e: Exception) {
Timber.w(IllegalArgumentException("Unable to parse line: $line", e))
null
}
}
private val spaces = " +".toPattern()