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Refine RootSession.Transaction.iptables

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This commit is contained in:
Mygod
2019-01-24 21:11:38 +08:00
parent f60c42a54c
commit 0da1943a68
5 changed files with 22 additions and 21 deletions
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10
mobile/src/main/java/be/mygod/vpnhotspot/net/Routing.kt
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@@ -14,7 +14,6 @@ import be.mygod.vpnhotspot.util.RootSession
import be.mygod.vpnhotspot.util.computeIfAbsentCompat
import be.mygod.vpnhotspot.widget.SmartSnackbar
import timber.log.Timber
import java.lang.RuntimeException
import java.net.*
import java.util.concurrent.atomic.AtomicLong
@@ -61,10 +60,15 @@ class Routing(val downstream: String, ownerAddress: InterfaceAddress? = null) :
}
}
private fun RootSession.Transaction.iptables(command: String, revert: String) {
val result = execQuiet(command, revert)
val message = RootSession.checkOutput(command, result, err = false)
if (result.err.isNotEmpty()) Timber.i(message) // busy wait message
}
private fun RootSession.Transaction.iptablesAdd(content: String, table: String = "filter") =
exec("$IPTABLES -t $table -A $content", "$IPTABLES -t $table -D $content", true)
iptables("$IPTABLES -t $table -A $content", "$IPTABLES -t $table -D $content")
private fun RootSession.Transaction.iptablesInsert(content: String, table: String = "filter") =
exec("$IPTABLES -t $table -I $content", "$IPTABLES -t $table -D $content", true)
iptables("$IPTABLES -t $table -I $content", "$IPTABLES -t $table -D $content")
}
class InterfaceNotFoundException : SocketException() {

2
mobile/src/main/java/be/mygod/vpnhotspot/net/monitor/TrafficRecorder.kt
View File

@@ -67,7 +67,7 @@ object TrafficRecorder {
loop@ for (line in RootSession.use {
val command = "$IPTABLES -nvx -L vpnhotspot_fwd"
val result = it.execQuiet(command)
val message = it.checkOutput(command, result, false, false)
val message = RootSession.checkOutput(command, result, false, false)
if (result.err.isNotEmpty()) Timber.i(message)
result.out.drop(2)
}) {

2
mobile/src/main/java/be/mygod/vpnhotspot/net/wifi/P2pSupplicantConfiguration.kt
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@@ -49,7 +49,7 @@ class P2pSupplicantConfiguration(private val group: WifiP2pGroup, ownerAddress:
var target: NetworkBlock? = null
val command = "cat $CONF_PATH_TREBLE || cat $CONF_PATH_LEGACY"
val shell = it.execQuiet(command)
it.checkOutput(command, shell, false, false)
RootSession.checkOutput(command, shell, false, false)
val parser = Parser(shell.out)
try {
val bssid = group.owner.deviceAddress ?: ownerAddress

18
mobile/src/main/java/be/mygod/vpnhotspot/util/RootSession.kt
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@@ -54,16 +54,18 @@ class RootSession : AutoCloseable {
instance.haltTimeout()
instance.close()
}
}
class UnexpectedOutputException(msg: String) : RuntimeException(msg)
fun checkOutput(command: String, result: Shell.Result, out: Boolean = result.out.isNotEmpty(),
err: Boolean = result.err.isNotEmpty()): String {
val msg = StringBuilder("$command exited with ${result.code}")
if (out) result.out.forEach { msg.append("\n$it") }
if (err) result.err.forEach { msg.append("\nE $it") }
if (!result.isSuccess || out || err) throw UnexpectedOutputException(msg.toString()) else return msg.toString()
if (!result.isSuccess || out || err) throw UnexpectedOutputException(msg.toString())
return msg.toString()
}
}
class UnexpectedOutputException(msg: String) : RuntimeException(msg)
private val shell = Shell.newInstance("su")
private val stdout = ArrayList<String>()
@@ -114,15 +116,11 @@ class RootSession : AutoCloseable {
inner class Transaction {
private val revertCommands = LinkedList<String>()
fun exec(command: String, revert: String? = null, wait: Boolean = false) {
fun exec(command: String, revert: String? = null) = checkOutput(command, execQuiet(command, revert))
fun execQuiet(command: String, revert: String? = null): Shell.Result {
if (revert != null) revertCommands.addFirst(revert) // add first just in case exec fails
if (wait) {
val result = this@RootSession.execQuiet(command)
val message = checkOutput(command, result, err = false)
if (result.err.isNotEmpty()) Timber.i(message)
} else this@RootSession.exec(command)
return this@RootSession.execQuiet(command)
}
fun execQuiet(command: String) = this@RootSession.execQuiet(command)
fun commit() = unlock()

3
mobile/src/main/java/be/mygod/vpnhotspot/widget/SmartSnackbar.kt
View File

@@ -9,7 +9,6 @@ import androidx.lifecycle.Lifecycle
import androidx.lifecycle.LifecycleObserver
import androidx.lifecycle.OnLifecycleEvent
import be.mygod.vpnhotspot.App.Companion.app
import be.mygod.vpnhotspot.R
import com.google.android.material.snackbar.Snackbar
import com.topjohnwu.superuser.NoShellException
@@ -21,7 +20,7 @@ sealed class SmartSnackbar {
fun make(@StringRes text: Int): SmartSnackbar = make(app.getText(text))
fun make(text: CharSequence? = ""): SmartSnackbar {
val holder = holder
return if (holder == null) {
return if (holder == null) @SuppressLint("ShowToast") {
if (Looper.myLooper() == null) Looper.prepare()
ToastWrapper(Toast.makeText(app, text, Toast.LENGTH_LONG))
} else SnackbarWrapper(Snackbar.make(holder, text ?: null.toString(), Snackbar.LENGTH_LONG))