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selectively disable/enable transproxy rules

This commit is contained in:
Nathan Freitas 2014-08-07 15:33:57 -04:00
parent 5a9b9dc5b1
commit 6955c44e36
1 changed files with 32 additions and 54 deletions
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84
src/org/torproject/android/service/TorTransProxy.java
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@ -336,14 +336,18 @@ public class TorTransProxy implements TorServiceConstants {
return code; return code;
}*/ }*/
public int setTransparentProxyingByApp(Context context, ArrayList<TorifiedApp> apps) throws Exception public int setTransparentProxyingByApp(Context context, ArrayList<TorifiedApp> apps, boolean enableRule) throws Exception
{ {
String ipTablesPath = getIpTablesPath(context); String ipTablesPath = getIpTablesPath(context);
//StringBuilder script = new StringBuilder(); //StringBuilder script = new StringBuilder();
String action = " -A ";
String srcChainName = "OUTPUT"; String srcChainName = "OUTPUT";
if (!enableRule)
action = " -D ";
//run the delete commands in a separate process as it might error out //run the delete commands in a separate process as it might error out
//String[] cmdExecClear = {script.toString()}; //String[] cmdExecClear = {script.toString()};
//code = TorServiceUtils.doShellCommand(cmdExecClear, res, runRoot, waitFor); //code = TorServiceUtils.doShellCommand(cmdExecClear, res, runRoot, waitFor);
@ -376,7 +380,7 @@ public class TorTransProxy implements TorServiceConstants {
// Allow loopback // Allow loopback
script.append(ipTablesPath); script.append(ipTablesPath);
script.append(" -t filter"); script.append(" -t filter");
script.append(" -A ").append(srcChainName); script.append(action).append(srcChainName);
script.append(" -m owner --uid-owner "); script.append(" -m owner --uid-owner ");
script.append(tApp.getUid()); script.append(tApp.getUid());
script.append(" -o lo"); script.append(" -o lo");
@ -388,7 +392,7 @@ public class TorTransProxy implements TorServiceConstants {
// Set up port redirection // Set up port redirection
script.append(ipTablesPath); script.append(ipTablesPath);
script.append(" -t nat"); script.append(" -t nat");
script.append(" -A ").append(srcChainName); script.append(action).append(srcChainName);
script.append(" -p tcp"); script.append(" -p tcp");
script.append(ALLOW_LOCAL); script.append(ALLOW_LOCAL);
script.append(" -m owner --uid-owner "); script.append(" -m owner --uid-owner ");
@ -403,7 +407,7 @@ public class TorTransProxy implements TorServiceConstants {
// Same for DNS // Same for DNS
script.append(ipTablesPath); script.append(ipTablesPath);
script.append(" -t nat"); script.append(" -t nat");
script.append(" -A ").append(srcChainName); script.append(action).append(srcChainName);
script.append(" -p udp"); script.append(" -p udp");
script.append(" -m owner --uid-owner "); script.append(" -m owner --uid-owner ");
script.append(tApp.getUid()); script.append(tApp.getUid());
@ -418,7 +422,7 @@ public class TorTransProxy implements TorServiceConstants {
// Reject all other outbound packets // Reject all other outbound packets
script.append(ipTablesPath); script.append(ipTablesPath);
script.append(" -t filter"); script.append(" -t filter");
script.append(" -A ").append(srcChainName); script.append(action).append(srcChainName);
script.append(" -m owner --uid-owner "); script.append(" -m owner --uid-owner ");
script.append(tApp.getUid()); script.append(tApp.getUid());
script.append(ALLOW_LOCAL); script.append(ALLOW_LOCAL);
@ -500,40 +504,7 @@ public class TorTransProxy implements TorServiceConstants {
mTorService.debug(msg); mTorService.debug(msg);
} }
public int clearTransparentProxyingAll(Context context) throws Exception
{
String ipTablesPath = getIpTablesPath(context);
StringBuilder script = new StringBuilder();
Shell shell = Shell.startRootShell();
String chainName = "OUTPUT";
script = new StringBuilder();
script.append(ipTablesPath);
script.append(" -t nat");
script.append(" -F ").append(chainName); //delete previous user-defined chain
executeCommand (shell, script.toString());
script = new StringBuilder();
script = new StringBuilder();
script.append(ipTablesPath);
script.append(" -t filter");
script.append(" -F ").append(chainName); //delete previous user-defined chain
int lastExit = executeCommand (shell, script.toString());
shell.close();
clearAllIPv6Filters(context);
return lastExit;
}
public int fixTransproxyLeak (Context context) throws Exception public int fixTransproxyLeak (Context context) throws Exception
{ {
@ -609,10 +580,19 @@ public class TorTransProxy implements TorServiceConstants {
return lastExit; return lastExit;
} }
public int setTransparentProxyingAll(Context context) throws Exception public int setTransparentProxyingAll(Context context, boolean enable) throws Exception
{ {
String action = " -A ";
String srcChainName = "OUTPUT";
if (!enable)
action = " -D ";
if (enable)
dropAllIPv6Traffic(context,-1); dropAllIPv6Traffic(context,-1);
else
clearAllIPv6Filters(context);
String ipTablesPath = getIpTablesPath(context); String ipTablesPath = getIpTablesPath(context);
@ -620,15 +600,13 @@ public class TorTransProxy implements TorServiceConstants {
int torUid = context.getApplicationInfo().uid; int torUid = context.getApplicationInfo().uid;
String srcChainName = "OUTPUT";
StringBuilder script = new StringBuilder(); StringBuilder script = new StringBuilder();
// Allow everything for Tor // Allow everything for Tor
script.append(ipTablesPath); script.append(ipTablesPath);
script.append(" -t nat"); script.append(" -t nat");
script.append(" -A ").append(srcChainName); script.append(action).append(srcChainName);
script.append(" -m owner --uid-owner "); script.append(" -m owner --uid-owner ");
script.append(torUid); script.append(torUid);
script.append(" -j ACCEPT"); script.append(" -j ACCEPT");
@ -640,7 +618,7 @@ public class TorTransProxy implements TorServiceConstants {
script.append(ipTablesPath); script.append(ipTablesPath);
script.append(" -t nat"); script.append(" -t nat");
script.append(" -A ").append(srcChainName); script.append(action).append(srcChainName);
script.append(" -o lo"); script.append(" -o lo");
script.append(" -j ACCEPT"); script.append(" -j ACCEPT");
@ -650,7 +628,7 @@ public class TorTransProxy implements TorServiceConstants {
// Set up port redirection // Set up port redirection
script.append(ipTablesPath); script.append(ipTablesPath);
script.append(" -t nat"); script.append(" -t nat");
script.append(" -A ").append(srcChainName); script.append(action).append(srcChainName);
script.append(" -p tcp"); script.append(" -p tcp");
script.append(ALLOW_LOCAL); //allow access to localhost script.append(ALLOW_LOCAL); //allow access to localhost
script.append(" -m owner ! --uid-owner "); script.append(" -m owner ! --uid-owner ");
@ -665,7 +643,7 @@ public class TorTransProxy implements TorServiceConstants {
// Same for DNS // Same for DNS
script.append(ipTablesPath); script.append(ipTablesPath);
script.append(" -t nat"); script.append(" -t nat");
script.append(" -A ").append(srcChainName); script.append(action).append(srcChainName);
script.append(" -p udp"); script.append(" -p udp");
script.append(ALLOW_LOCAL); //allow access to localhost script.append(ALLOW_LOCAL); //allow access to localhost
script.append(" -m owner ! --uid-owner "); script.append(" -m owner ! --uid-owner ");
@ -684,7 +662,7 @@ public class TorTransProxy implements TorServiceConstants {
//XXX: Comment the following rules for non-debug builds //XXX: Comment the following rules for non-debug builds
script.append(ipTablesPath); script.append(ipTablesPath);
script.append(" -t filter"); script.append(" -t filter");
script.append(" -A ").append(srcChainName); script.append(action).append(srcChainName);
script.append(" -p udp"); script.append(" -p udp");
script.append(" --dport "); script.append(" --dport ");
script.append(STANDARD_DNS_PORT); script.append(STANDARD_DNS_PORT);
@ -697,7 +675,7 @@ public class TorTransProxy implements TorServiceConstants {
script.append(ipTablesPath); script.append(ipTablesPath);
script.append(" -t filter"); script.append(" -t filter");
script.append(" -A ").append(srcChainName); script.append(action).append(srcChainName);
script.append(" -p tcp"); script.append(" -p tcp");
script.append(" -j LOG"); script.append(" -j LOG");
script.append(" --log-prefix='ORBOT_TCPLEAK_PROTECTION'"); script.append(" --log-prefix='ORBOT_TCPLEAK_PROTECTION'");
@ -711,7 +689,7 @@ public class TorTransProxy implements TorServiceConstants {
//allow access to transproxy port //allow access to transproxy port
script.append(ipTablesPath); script.append(ipTablesPath);
script.append(" -t filter"); script.append(" -t filter");
script.append(" -A ").append(srcChainName); script.append(action).append(srcChainName);
script.append(" -p tcp"); script.append(" -p tcp");
script.append(" -m tcp"); script.append(" -m tcp");
script.append(" --dport ").append(mTransProxyPort); script.append(" --dport ").append(mTransProxyPort);
@ -723,7 +701,7 @@ public class TorTransProxy implements TorServiceConstants {
//allow access to local SOCKS port //allow access to local SOCKS port
script.append(ipTablesPath); script.append(ipTablesPath);
script.append(" -t filter"); script.append(" -t filter");
script.append(" -A ").append(srcChainName); script.append(action).append(srcChainName);
script.append(" -p tcp"); script.append(" -p tcp");
script.append(" -m tcp"); script.append(" -m tcp");
script.append(" --dport ").append(PORT_SOCKS_DEFAULT); script.append(" --dport ").append(PORT_SOCKS_DEFAULT);
@ -735,7 +713,7 @@ public class TorTransProxy implements TorServiceConstants {
//allow access to local SOCKS port //allow access to local SOCKS port
script.append(ipTablesPath); script.append(ipTablesPath);
script.append(" -t filter"); script.append(" -t filter");
script.append(" -A ").append(srcChainName); script.append(action).append(srcChainName);
script.append(" -p tcp"); script.append(" -p tcp");
script.append(" -m tcp"); script.append(" -m tcp");
script.append(" --dport ").append(PORT_HTTP); script.append(" --dport ").append(PORT_HTTP);
@ -747,7 +725,7 @@ public class TorTransProxy implements TorServiceConstants {
//allow access to local DNS port //allow access to local DNS port
script.append(ipTablesPath); script.append(ipTablesPath);
script.append(" -t filter"); script.append(" -t filter");
script.append(" -A ").append(srcChainName); script.append(action).append(srcChainName);
script.append(" -p udp"); script.append(" -p udp");
script.append(" -m udp"); script.append(" -m udp");
script.append(" --dport ").append(mDNSPort); script.append(" --dport ").append(mDNSPort);
@ -759,7 +737,7 @@ public class TorTransProxy implements TorServiceConstants {
//allow access to local DNS port //allow access to local DNS port
script.append(ipTablesPath); script.append(ipTablesPath);
script.append(" -t filter"); script.append(" -t filter");
script.append(" -A ").append(srcChainName); script.append(action).append(srcChainName);
script.append(" -p udp"); script.append(" -p udp");
script.append(" -m udp"); script.append(" -m udp");
script.append(" --dport ").append(mDNSPort); script.append(" --dport ").append(mDNSPort);
@ -772,7 +750,7 @@ public class TorTransProxy implements TorServiceConstants {
// Reject all other packets // Reject all other packets
script.append(ipTablesPath); script.append(ipTablesPath);
script.append(" -t filter"); script.append(" -t filter");
script.append(" -A ").append(srcChainName); script.append(action).append(srcChainName);
script.append(" -m owner ! --uid-owner "); script.append(" -m owner ! --uid-owner ");
script.append(torUid); script.append(torUid);
script.append(ALLOW_LOCAL); //allow access to localhost script.append(ALLOW_LOCAL); //allow access to localhost