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Diffstat (limited to 'app/src/main/java/de/blinkt/openvpn/core/NetworkSpace.java')
-rw-r--r--app/src/main/java/de/blinkt/openvpn/core/NetworkSpace.java94
1 files changed, 53 insertions, 41 deletions
diff --git a/app/src/main/java/de/blinkt/openvpn/core/NetworkSpace.java b/app/src/main/java/de/blinkt/openvpn/core/NetworkSpace.java
index eb6d4d42..37689b3f 100644
--- a/app/src/main/java/de/blinkt/openvpn/core/NetworkSpace.java
+++ b/app/src/main/java/de/blinkt/openvpn/core/NetworkSpace.java
@@ -34,8 +34,8 @@ public class NetworkSpace {
/**
* sorts the networks with following criteria:
- * 1. compares first 1 of the network
- * 2. smaller networks are returned as smaller
+ * 1. compares first 1 of the network
+ * 2. smaller networks are returned as smaller
*/
@Override
public int compareTo(@NonNull ipAddress another) {
@@ -55,8 +55,7 @@ public class NetworkSpace {
/**
* Warning ignores the included integer
*
- * @param o
- * the object to compare this instance with.
+ * @param o the object to compare this instance with.
*/
@Override
public boolean equals(Object o) {
@@ -89,15 +88,15 @@ public class NetworkSpace {
}
public BigInteger getLastAddress() {
- if(lastAddress ==null)
+ if (lastAddress == null)
lastAddress = getMaskedAddress(true);
return lastAddress;
}
public BigInteger getFirstAddress() {
- if (firstAddress ==null)
- firstAddress =getMaskedAddress(false);
+ if (firstAddress == null)
+ firstAddress = getMaskedAddress(false);
return firstAddress;
}
@@ -126,7 +125,7 @@ public class NetworkSpace {
public String toString() {
//String in = included ? "+" : "-";
if (isV4)
- return String.format(Locale.US,"%s/%d", getIPv4Address(), networkMask);
+ return String.format(Locale.US, "%s/%d", getIPv4Address(), networkMask);
else
return String.format(Locale.US, "%s/%d", getIPv6Address(), networkMask);
}
@@ -142,36 +141,48 @@ public class NetworkSpace {
public ipAddress[] split() {
ipAddress firstHalf = new ipAddress(getFirstAddress(), networkMask + 1, included, isV4);
ipAddress secondHalf = new ipAddress(firstHalf.getLastAddress().add(BigInteger.ONE), networkMask + 1, included, isV4);
- if (BuildConfig.DEBUG) Assert.assertTrue(secondHalf.getLastAddress().equals(getLastAddress()));
+ if (BuildConfig.DEBUG)
+ Assert.assertTrue(secondHalf.getLastAddress().equals(getLastAddress()));
return new ipAddress[]{firstHalf, secondHalf};
}
String getIPv4Address() {
if (BuildConfig.DEBUG) {
- Assert.assertTrue (isV4);
- Assert.assertTrue (netAddress.longValue() <= 0xffffffffl);
- Assert.assertTrue (netAddress.longValue() >= 0);
+ Assert.assertTrue(isV4);
+ Assert.assertTrue(netAddress.longValue() <= 0xffffffffl);
+ Assert.assertTrue(netAddress.longValue() >= 0);
}
long ip = netAddress.longValue();
return String.format(Locale.US, "%d.%d.%d.%d", (ip >> 24) % 256, (ip >> 16) % 256, (ip >> 8) % 256, ip % 256);
}
String getIPv6Address() {
- if (BuildConfig.DEBUG) Assert.assertTrue (!isV4);
+ if (BuildConfig.DEBUG) Assert.assertTrue(!isV4);
BigInteger r = netAddress;
- Vector<String> parts = new Vector<String>();
- while (r.compareTo(BigInteger.ZERO) == 1 || parts.size() <3) {
+ String ipv6str = null;
+ boolean lastPart = true;
+
+ while (r.compareTo(BigInteger.ZERO) == 1) {
+
long part = r.mod(BigInteger.valueOf(0x10000)).longValue();
- if (part!=0)
- parts.add(0, String.format(Locale.US, "%x", part));
- else
- parts.add(0, "");
+ if (ipv6str != null || part != 0) {
+ if (ipv6str == null && !lastPart)
+ ipv6str = ":";
+
+ if (lastPart)
+ ipv6str = String.format(Locale.US, "%x", part, ipv6str);
+ else
+ ipv6str = String.format(Locale.US, "%x:%s", part, ipv6str);
+ }
+
r = r.shiftRight(16);
+ lastPart = false;
}
- String ipv6str = TextUtils.join(":", parts);
- while (ipv6str.contains(":::"))
- ipv6str = ipv6str.replace(":::", "::");
+ if (ipv6str == null)
+ return "::";
+
+
return ipv6str;
}
@@ -183,8 +194,8 @@ public class NetworkSpace {
BigInteger netLast = network.getLastAddress();
boolean a = ourFirst.compareTo(netFirst) != 1;
- boolean b = ourLast.compareTo(netLast) != -1;
- return a && b;
+ boolean b = ourLast.compareTo(netLast) != -1;
+ return a && b;
}
}
@@ -215,7 +226,7 @@ public class NetworkSpace {
public void addIPSplit(CIDRIP cidrIp, boolean include) {
ipAddress newIP = new ipAddress(cidrIp, include);
ipAddress[] splitIps = newIP.split();
- for (ipAddress split: splitIps)
+ for (ipAddress split : splitIps)
mIpAddresses.add(split);
}
@@ -229,16 +240,16 @@ public class NetworkSpace {
TreeSet<ipAddress> ipsDone = new TreeSet<ipAddress>();
- ipAddress currentNet = networks.poll();
- if (currentNet==null)
+ ipAddress currentNet = networks.poll();
+ if (currentNet == null)
return ipsDone;
- while (currentNet!=null) {
+ while (currentNet != null) {
// Check if it and the next of it are compatible
ipAddress nextNet = networks.poll();
if (BuildConfig.DEBUG) Assert.assertNotNull(currentNet);
- if (nextNet== null || currentNet.getLastAddress().compareTo(nextNet.getFirstAddress()) == -1) {
+ if (nextNet == null || currentNet.getLastAddress().compareTo(nextNet.getFirstAddress()) == -1) {
// Everything good, no overlapping nothing to do
ipsDone.add(currentNet);
@@ -249,7 +260,7 @@ public class NetworkSpace {
if (currentNet.included == nextNet.included) {
// Included in the next next and same type
// Simply forget our current network
- currentNet=nextNet;
+ currentNet = nextNet;
} else {
// our currentNet is included in next and types differ. Need to split the next network
ipAddress[] newNets = nextNet.split();
@@ -262,7 +273,8 @@ public class NetworkSpace {
networks.add(newNets[1]);
if (newNets[0].getLastAddress().equals(currentNet.getLastAddress())) {
- if (BuildConfig.DEBUG) Assert.assertEquals (newNets[0].networkMask, currentNet.networkMask);
+ if (BuildConfig.DEBUG)
+ Assert.assertEquals(newNets[0].networkMask, currentNet.networkMask);
// Don't add the lower half that would conflict with currentNet
} else {
if (!networks.contains(newNets[0]))
@@ -273,8 +285,8 @@ public class NetworkSpace {
} else {
if (BuildConfig.DEBUG) {
Assert.assertTrue(currentNet.networkMask < nextNet.networkMask);
- Assert.assertTrue (nextNet.getFirstAddress().compareTo(currentNet.getFirstAddress()) == 1);
- Assert.assertTrue (currentNet.getLastAddress().compareTo(nextNet.getLastAddress()) != -1);
+ Assert.assertTrue(nextNet.getFirstAddress().compareTo(currentNet.getFirstAddress()) == 1);
+ Assert.assertTrue(currentNet.getLastAddress().compareTo(nextNet.getLastAddress()) != -1);
}
// This network is bigger than the next and last ip of current >= next
@@ -289,8 +301,8 @@ public class NetworkSpace {
if (newNets[1].networkMask == nextNet.networkMask) {
if (BuildConfig.DEBUG) {
- Assert.assertTrue (newNets[1].getFirstAddress().equals(nextNet.getFirstAddress()));
- Assert.assertTrue (newNets[1].getLastAddress().equals(currentNet.getLastAddress()));
+ Assert.assertTrue(newNets[1].getFirstAddress().equals(nextNet.getFirstAddress()));
+ Assert.assertTrue(newNets[1].getLastAddress().equals(currentNet.getLastAddress()));
// split second equal the next network, do not add it
}
networks.add(nextNet);
@@ -322,20 +334,20 @@ public class NetworkSpace {
if (Build.VERSION.SDK_INT < Build.VERSION_CODES.KITKAT) {
// Include postive routes from the original set under < 4.4 since these might overrule the local
// network but only if no smaller negative route exists
- for(ipAddress origIp: mIpAddresses){
+ for (ipAddress origIp : mIpAddresses) {
if (!origIp.included)
continue;
// The netspace exists
- if(ipsSorted.contains(origIp))
+ if (ipsSorted.contains(origIp))
continue;
- boolean skipIp=false;
+ boolean skipIp = false;
// If there is any smaller net that is excluded we may not add the positive route back
- for (ipAddress calculatedIp: ipsSorted) {
- if(!calculatedIp.included && origIp.containsNet(calculatedIp)) {
- skipIp=true;
+ for (ipAddress calculatedIp : ipsSorted) {
+ if (!calculatedIp.included && origIp.containsNet(calculatedIp)) {
+ skipIp = true;
break;
}
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-06-01 14:11:33 +0000