From 7fbea5459e59de1327f2c76a23f5940d67e4ae8d Mon Sep 17 00:00:00 2001
From: cyberta <cyberta@riseup.net>
Date: Wed, 29 Jan 2020 02:55:25 -0600
Subject: implement wifi tethering

---
 .../firewall/ConfigureTetheringTask.java           | 111 ---------------------
 1 file changed, 111 deletions(-)
 delete mode 100644 app/src/main/java/se/leap/bitmaskclient/firewall/ConfigureTetheringTask.java

(limited to 'app/src/main/java/se/leap/bitmaskclient/firewall/ConfigureTetheringTask.java')

diff --git a/app/src/main/java/se/leap/bitmaskclient/firewall/ConfigureTetheringTask.java b/app/src/main/java/se/leap/bitmaskclient/firewall/ConfigureTetheringTask.java
deleted file mode 100644
index 3363152e..00000000
--- a/app/src/main/java/se/leap/bitmaskclient/firewall/ConfigureTetheringTask.java
+++ /dev/null
@@ -1,111 +0,0 @@
-/**
- * Copyright (c) 2020 LEAP Encryption Access Project and contributers
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- */
-package se.leap.bitmaskclient.firewall;
-
-import android.os.AsyncTask;
-import android.util.Log;
-
-import java.lang.ref.WeakReference;
-
-import se.leap.bitmaskclient.tethering.TetheringState;
-
-import static se.leap.bitmaskclient.firewall.FirewallManager.BITMASK_FORWARD;
-import static se.leap.bitmaskclient.firewall.FirewallManager.BITMASK_POSTROUTING;
-import static se.leap.bitmaskclient.utils.Cmd.runBlockingCmd;
-
-public class ConfigureTetheringTask extends AsyncTask<TetheringState, Boolean, Boolean> {
-
-    private WeakReference<FirewallCallback> callbackWeakReference;
-
-    ConfigureTetheringTask(FirewallCallback callback) {
-        callbackWeakReference = new WeakReference<>(callback);
-    }
-
-    @Override
-    protected Boolean doInBackground(TetheringState... tetheringStates) {
-        TetheringState tetheringState = tetheringStates[0];
-        StringBuilder log = new StringBuilder();
-
-        String[] bitmaskChain = new String[]{
-                "su",
-                "id",
-                "iptables --list " + BITMASK_FORWARD + " && iptables --list " + BITMASK_POSTROUTING };
-
-        try {
-            boolean hasBitmaskChain = runBlockingCmd(bitmaskChain, log) == 0;
-            boolean allowSu = log.toString().contains("uid=0");
-            callbackWeakReference.get().onSuRequested(allowSu);
-            if (!allowSu) {
-                return false;
-            }
-
-            boolean success;
-            log = new StringBuilder();
-            if (hasAnyTetheringEnabled(tetheringState)) {
-                if (!hasBitmaskChain) {
-                    String[] createChains = new String[]{
-                            "su",
-                            "iptables -t filter --new-chain " + BITMASK_FORWARD,
-                            "iptables -t nat --new-chain " + BITMASK_POSTROUTING,
-                            "iptables -t filter --insert FORWARD --jump " + BITMASK_FORWARD,
-                            "iptables -t nat --insert POSTROUTING --jump " + BITMASK_POSTROUTING,
-                    };
-                    success = runBlockingCmd(createChains, log) == 0;
-                    Log.d(FirewallManager.TAG, "added " + BITMASK_FORWARD + " and " + BITMASK_POSTROUTING+" to iptables: " + success);
-                    Log.d(FirewallManager.TAG, log.toString());
-                }
-
-                String[] addRules = new String[] {
-                        "su",
-                        "iptables -t filter --flush " + BITMASK_FORWARD,
-                        "iptables -t nat --flush " + BITMASK_POSTROUTING,
-                        "iptables -t filter --append " + BITMASK_FORWARD + " --jump ACCEPT",
-                        "iptables -t nat --append " + BITMASK_POSTROUTING + " --jump MASQUERADE" };
-                return runBlockingCmd(addRules, log) == 0;
-            } else {
-                if (!hasBitmaskChain) return true;
-                String[] removeChains = new String[] {
-                        "su",
-                        "iptables -t filter --delete FORWARD --jump " + BITMASK_FORWARD,
-                        "iptables -t nat --delete POSTROUTING --jump " + BITMASK_POSTROUTING,
-                        "iptables -t filter --flush " + BITMASK_FORWARD,
-                        "iptables -t nat --flush " + BITMASK_POSTROUTING,
-                        "iptables -t filter --delete-chain " + BITMASK_FORWARD,
-                        "iptables -t nat --delete-chain " + BITMASK_POSTROUTING
-                };
-                return runBlockingCmd(removeChains, log) == 0;
-            }
-        } catch (Exception e) {
-            e.printStackTrace();
-            Log.e(FirewallManager.TAG, log.toString());
-        }
-        return false;
-    }
-
-    @Override
-    protected void onPostExecute(Boolean result) {
-        super.onPostExecute(result);
-        FirewallCallback callback = callbackWeakReference.get();
-        if (callback != null) {
-            callback.onTetheringConfigured(result);
-        }
-    }
-
-    private boolean hasAnyTetheringEnabled(TetheringState state) {
-        return state.isBluetoothTetheringEnabled || state.isUsbTetheringEnabled || state.isWifiTetheringEnabled;
-    }
-}
-- 
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