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Use fabric WebSocket dataplane for Android VPN

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This commit is contained in:
Mikhail
2026-05-15 08:50:26 +03:00
parent 8558b210c3
commit 5f4ac89767
4 changed files with 81 additions and 10 deletions
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clients/android/app/build.gradle
+2 -2
View File
@@ -30,8 +30,8 @@ android {
applicationId "su.cin.rapvpn"
minSdk 26
targetSdk 35
versionCode 187
versionName "0.2.187"
versionCode 188
versionName "0.2.188"
buildConfigField "String", "DEFAULT_BACKEND_URL", "\"${normalizeGradleString(defaultBackendUrl)}\""
buildConfigField "String", "DEFAULT_CLUSTER_ID", "\"${normalizeGradleString(defaultClusterId)}\""
buildConfigField "String", "DEFAULT_ORGANIZATION_ID", "\"${normalizeGradleString(defaultOrganizationId)}\""
clients/android/app/src/main/java/su/cin/rapvpn/RapVpnService.java
+38 -1
View File
@@ -53,7 +53,7 @@ public class RapVpnService extends VpnService {
private static final String PREFS = "rap-vpn-runtime";
private static final int DEFAULT_VPN_MTU = 1000;
private static final int VPN_TCP_MSS_CLAMP = 900;
private static final boolean PACKET_WEBSOCKET_DATAPLANE_ENABLED = false;
private static final boolean PACKET_WEBSOCKET_DATAPLANE_ENABLED = true;
private static final int VPN_BATCH_MAX_PACKETS = 512;
private static final int VPN_BATCH_MAX_BYTES = 1024 * 1024;
private static final int UPLINK_WORKER_MAX_COUNT = 1;
@@ -603,6 +603,9 @@ public class RapVpnService extends VpnService {
FabricServiceChannel channel = FabricServiceChannel.fromLease(serviceChannelLease);
if (channel.enabled) {
config.fabricServiceChannel = channel;
if (!channel.webSocketPathTemplate.isEmpty()) {
config.dataplaneSelectedTransport = "fabric_packet_websocket_v1";
}
config.configNotes.add("Fabric service channel enabled: " + channel.channelId);
}
}
@@ -1040,6 +1043,9 @@ public class RapVpnService extends VpnService {
configureBackendBypass(selectedRelayUrl);
if (PACKET_WEBSOCKET_DATAPLANE_ENABLED) {
startPacketWebSocketRelay(selectedRelayUrl, clusterId, vpnConnectionId);
if (activeFabricServiceChannel.enabled) {
writeRuntimeDetail("fabric_websocket_dataplane", "fabric websocket packet stream required; HTTP batch fallback disabled", "relay", 0, 0, "", -1);
}
} else {
writeRuntimeDetail("http_packet_batch", "packet websocket disabled; using confirmed HTTP batches", "relay", 0, 0, "", -1);
}
@@ -2481,6 +2487,18 @@ public class RapVpnService extends VpnService {
if (sendUplinkBatchOverWebSocket(relayUrl, clusterId, vpnConnectionId, batch, workerIndex)) {
return true;
}
if (activeFabricServiceChannel.enabled) {
for (int attempt = 0; attempt <= UPLINK_TRANSIENT_RETRY_COUNT && running; attempt++) {
lastUplinkSendErrorMessage = "fabric websocket packet stream unavailable: " + lastWebSocketRelayError();
writeRuntimeDetail("websocket_required_wait", "fabric websocket unavailable; HTTP batch fallback disabled relay=" + relayUrl + " attempt=" + attempt + " error=" + lastUplinkSendErrorMessage, "uplink_sender", -1, -1, "WEBSOCKET_REQUIRED", workerIndex);
sleepQuietly(Math.min(UPLINK_TRANSIENT_RETRY_MAX_SLEEP_MS, UPLINK_TRANSIENT_RETRY_SLEEP_MS * (attempt + 1L)));
if (sendUplinkBatchOverWebSocket(relayUrl, clusterId, vpnConnectionId, batch, workerIndex)) {
return true;
}
}
switchPacketRelayUrl(relayUrl, "websocket_unavailable");
continue;
}
RapApiClient client = packetRelayClientForUrl(relayUrl);
int attempt = 0;
while (running) {
@@ -2516,6 +2534,21 @@ public class RapVpnService extends VpnService {
return false;
}
private String lastWebSocketRelayError() {
VpnPacketWebSocketRelay relay = packetWebSocketRelay;
if (relay == null) {
return "relay_not_started";
}
String error = relay.lastError();
if (error == null || error.isEmpty()) {
if (relay.isOpen()) {
return "open_no_error";
}
return "not_open";
}
return error;
}
private boolean isTransientUplinkSendError(Exception e) {
String message = e == null ? null : e.getMessage();
if (message == null) {
@@ -3003,6 +3036,10 @@ public class RapVpnService extends VpnService {
}
writeRuntimeDetail("websocket_receive_fallback", "websocket receive fallback " + relay.lastError(), "downlink", -1, -1, "WEBSOCKET_RECEIVE", -1);
}
if (activeFabricServiceChannel.enabled) {
writeRuntimeDetail("websocket_receive_required", "fabric websocket unavailable; HTTP batch receive disabled " + lastWebSocketRelayError(), "downlink", -1, -1, "WEBSOCKET_REQUIRED", -1);
return new ArrayList<>();
}
return client.receiveClientPacketBatch(clusterId, vpnConnectionId, timeoutMs);
}