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Fix fallback dns routes

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This commit is contained in:
Mygod
2020-09-11 14:52:23 -04:00
parent dc639f6676
commit bd176bc6f0
1 changed files with 2 additions and 2 deletions
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4
mobile/src/main/java/be/mygod/vpnhotspot/net/Routing.kt
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@@ -326,7 +326,7 @@ class Routing(private val caller: Any, private val downstream: String) : IpNeigh
private inner class DnsRoute(val ifindex: Int, val dns: String) { private inner class DnsRoute(val ifindex: Int, val dns: String) {
val transaction = RootSession.beginTransaction().safeguard { val transaction = RootSession.beginTransaction().safeguard {
val hostAddress = hostAddress.address.hostAddress val hostAddress = hostAddress.address.hostAddress
ipRuleLookup(ifindex, RULE_PRIORITY_DNS, "to $dns") if (ifindex != 0) ipRuleLookup(ifindex, RULE_PRIORITY_DNS, "to $dns")
iptablesAdd("PREROUTING -i $downstream -p tcp -d $hostAddress --dport 53 -j DNAT --to-destination $dns", "nat") iptablesAdd("PREROUTING -i $downstream -p tcp -d $hostAddress --dport 53 -j DNAT --to-destination $dns", "nat")
iptablesAdd("PREROUTING -i $downstream -p udp -d $hostAddress --dport 53 -j DNAT --to-destination $dns", "nat") iptablesAdd("PREROUTING -i $downstream -p udp -d $hostAddress --dport 53 -j DNAT --to-destination $dns", "nat")
} }
@@ -342,7 +342,7 @@ class Routing(private val caller: Any, private val downstream: String) : IpNeigh
if (dns.isNullOrBlank()) dns = null if (dns.isNullOrBlank()) dns = null
if (ifindex != currentDns?.ifindex || dns != currentDns?.dns) { if (ifindex != currentDns?.ifindex || dns != currentDns?.dns) {
currentDns?.transaction?.revert() currentDns?.transaction?.revert()
currentDns = if (ifindex == 0 || dns == null) null else try { currentDns = if (dns == null) null else try {
DnsRoute(ifindex, dns) DnsRoute(ifindex, dns)
} catch (_: CancellationException) { } catch (_: CancellationException) {
null null