From e1425713974c7c432ded6f2595f511c69a6064db Mon Sep 17 00:00:00 2001
From: James 'zofrex' Sanderson <jsanderson@tailscale.com>
Date: Fri, 14 Feb 2025 15:25:48 +0000
Subject: [PATCH] ipn/ipnlocal: add GetFilterForTest (#15025)

Needed to test full packet filter in e2e tests. See tailscale/corp#26596

Updates tailscale/corp#20514

Signed-off-by: James Sanderson <jsanderson@tailscale.com>
---
 ipn/ipnlocal/local.go | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/ipn/ipnlocal/local.go b/ipn/ipnlocal/local.go
index 25f4d552f..e09061041 100644
--- a/ipn/ipnlocal/local.go
+++ b/ipn/ipnlocal/local.go
@@ -1438,6 +1438,10 @@ func (b *LocalBackend) peerCapsLocked(src netip.Addr) tailcfg.PeerCapMap {
 	return nil
 }
 
+func (b *LocalBackend) GetFilterForTest() *filter.Filter {
+	return b.filterAtomic.Load()
+}
+
 // SetControlClientStatus is the callback invoked by the control client whenever it posts a new status.
 // Among other things, this is where we update the netmap, packet filters, DNS and DERP maps.
 func (b *LocalBackend) SetControlClientStatus(c controlclient.Client, st controlclient.Status) {