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authorcyBerta <cyberta@riseup.net>2023-04-13 13:52:53 +0200
committercyBerta <cyberta@riseup.net>2023-04-13 16:47:13 +0200
commit9e7317c9e8323c0a97bca05548928ab0a5f0900d (patch)
tree3354eba46b71f92d7e212b7c2c31457879ccfefe /app/src/main
parent2f32f3331b609d8a0324726f173e1aacf8854808 (diff)
Assume port hopping only in case of a missing endpoints json for obfs4-hop. The gateway IP and the cert json field in options substitute the missing endpoints json
Diffstat (limited to 'app/src/main')
-rw-r--r--app/src/main/java/se/leap/bitmaskclient/eip/VpnConfigGenerator.java32
-rw-r--r--app/src/main/java/se/leap/bitmaskclient/pluggableTransports/HoppingConfig.java20
-rw-r--r--app/src/main/java/se/leap/bitmaskclient/pluggableTransports/HoppingObfsVpnClient.java8
3 files changed, 38 insertions, 22 deletions
diff --git a/app/src/main/java/se/leap/bitmaskclient/eip/VpnConfigGenerator.java b/app/src/main/java/se/leap/bitmaskclient/eip/VpnConfigGenerator.java
index 853082be..d32d1a71 100644
--- a/app/src/main/java/se/leap/bitmaskclient/eip/VpnConfigGenerator.java
+++ b/app/src/main/java/se/leap/bitmaskclient/eip/VpnConfigGenerator.java
@@ -228,7 +228,7 @@ public class VpnConfigGenerator {
}
private String gatewayConfiguration(TransportType transportType) {
- String remotes = "";
+ String configs = "";
StringBuilder stringBuilder = new StringBuilder();
try {
@@ -257,12 +257,12 @@ public class VpnConfigGenerator {
e.printStackTrace();
}
- remotes = stringBuilder.toString();
- if (remotes.endsWith(newLine)) {
- remotes = remotes.substring(0, remotes.lastIndexOf(newLine));
+ configs = stringBuilder.toString();
+ if (configs.endsWith(newLine)) {
+ configs = configs.substring(0, configs.lastIndexOf(newLine));
}
- return remotes;
+ return configs;
}
private void gatewayConfigMinApiv3(TransportType transportType, StringBuilder stringBuilder, String[] ipAddresses) throws JSONException {
@@ -372,7 +372,9 @@ public class VpnConfigGenerator {
}
if (transportType == OBFS4_HOP &&
- (transport.getOptions() == null || transport.getOptions().getEndpoints() == null || transport.getOptions().getPortCount() == 0)) {
+ (transport.getOptions() == null ||
+ (transport.getOptions().getEndpoints() == null && transport.getOptions().getCert() == null) ||
+ transport.getOptions().getPortCount() == 0)) {
VpnStatus.logError("Misconfigured provider: missing properties for transport " + transport.getType() + " on gateway " + ipAddress);
return;
}
@@ -403,10 +405,22 @@ public class VpnConfigGenerator {
if (useObfuscationPinning) {
return "route " + obfuscationPinningIP + " 255.255.255.255 net_gateway" + newLine;
}
- if (transport.getTransportType() == OBFS4) {
- return "route " + ipAddress + " 255.255.255.255 net_gateway" + newLine;
+ switch (transport.getTransportType()) {
+ case OBFS4:
+ return "route " + ipAddress + " 255.255.255.255 net_gateway" + newLine;
+ case OBFS4_HOP:
+ if (transport.getOptions().getEndpoints() != null) {
+ StringBuilder routes = new StringBuilder();
+ for (Transport.Endpoint endpoint : transport.getOptions().getEndpoints()) {
+ routes.append("route " + endpoint.getIp() + " 255.255.255.255 net_gateway" + newLine);
+ }
+ return routes.toString();
+ } else {
+ return "route " + ipAddress + " 255.255.255.255 net_gateway" + newLine;
+ }
}
- return newLine;
+
+ return "";
}
// While openvpn in TCP mode is required for obfs4, openvpn in UDP mode is required for obfs4-hop
diff --git a/app/src/main/java/se/leap/bitmaskclient/pluggableTransports/HoppingConfig.java b/app/src/main/java/se/leap/bitmaskclient/pluggableTransports/HoppingConfig.java
index e885166a..3780b7dc 100644
--- a/app/src/main/java/se/leap/bitmaskclient/pluggableTransports/HoppingConfig.java
+++ b/app/src/main/java/se/leap/bitmaskclient/pluggableTransports/HoppingConfig.java
@@ -20,17 +20,25 @@ public class HoppingConfig {
public HoppingConfig(boolean kcp,
String proxyAddr,
- Transport transport,
+ Obfs4Options options,
int minHopSeconds,
int hopJitter) {
this.kcp = kcp;
this.proxyAddr = proxyAddr;
+ Transport transport = options.transport;
Transport.Endpoint[] endpoints = transport.getOptions().getEndpoints();
- this.remotes = new String[endpoints.length];
- this.certs = new String[endpoints.length];
- for (int i = 0; i < remotes.length; i++) {
- remotes[i] = endpoints[i].getIp();
- certs[i] = endpoints[i].getCert();
+ if (endpoints == null) {
+ // only port hopping, we assume the gateway IP as hopping PT's IP
+ this.remotes = new String[]{ options.gatewayIP };
+ this.certs = new String[] { transport.getOptions().getCert() };
+ } else {
+ // port+ip hopping
+ this.remotes = new String[endpoints.length];
+ this.certs = new String[endpoints.length];
+ for (int i = 0; i < remotes.length; i++) {
+ remotes[i] = endpoints[i].getIp();
+ certs[i] = endpoints[i].getCert();
+ }
}
this.portSeed = transport.getOptions().getPortSeed();
this.portCount = transport.getOptions().getPortCount();
diff --git a/app/src/main/java/se/leap/bitmaskclient/pluggableTransports/HoppingObfsVpnClient.java b/app/src/main/java/se/leap/bitmaskclient/pluggableTransports/HoppingObfsVpnClient.java
index 1b19213f..751208ba 100644
--- a/app/src/main/java/se/leap/bitmaskclient/pluggableTransports/HoppingObfsVpnClient.java
+++ b/app/src/main/java/se/leap/bitmaskclient/pluggableTransports/HoppingObfsVpnClient.java
@@ -1,7 +1,5 @@
package se.leap.bitmaskclient.pluggableTransports;
-import static de.blinkt.openvpn.core.connection.Connection.TransportProtocol.KCP;
-
import client.Client;
import client.HopClient;
import de.blinkt.openvpn.core.VpnStatus;
@@ -21,11 +19,7 @@ public class HoppingObfsVpnClient implements PtClientInterface {
//if so, we stick to it, otherwise we flip the flag
boolean kcp = Constants.KCP.equals(options.transport.getProtocols()[0]);
- if (options.transport.getOptions().getEndpoints() == null) {
- throw new IllegalStateException("No Endpoints for hopping pt detected!");
- }
-
- HoppingConfig hoppingConfig = new HoppingConfig(kcp,IP+":"+PORT, options.transport, 10, 10);
+ HoppingConfig hoppingConfig = new HoppingConfig(kcp,IP+":"+PORT, options, 10, 10);
try {
client = Client.newFFIHopClient(hoppingConfig.toString());
} catch (Exception e) {