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Disallow bypass when vpn is lockdown #420

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Disallow bypass when vpn is lockdown #420

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17 changes: 14 additions & 3 deletions Android/app/src/main/java/app/intra/sys/IntraVpnService.java
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Original file line number Diff line number Diff line change
Expand Up @@ -374,9 +374,12 @@ public void onRevoke() {
public VpnService.Builder newBuilder() {
VpnService.Builder builder = new VpnService.Builder();
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
// Some WebRTC apps rely on the ability to bind to specific interfaces, which is only
// possible if we allow bypass.
builder = builder.allowBypass();
// unprivileged apps cannot bind to interfaces outside of the vpn when in lockdown mode
if (!isVpnLockdown()) {
// Some WebRTC apps rely on the ability to bind to specific interfaces, which is only
// possible if we allow bypass.
builder = builder.allowBypass();
}

try {
// Workaround for any app incompatibility bugs.
Expand Down Expand Up @@ -472,4 +475,12 @@ public String getResolvers() {
}
return TextUtils.join(",", ips);
}

private boolean isVpnLockdown() {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.Q) {
return this.isLockdownEnabled();
} else {
return false;
}
}
}