Do not filter frames in ethernet link endpoint

Ethernet frames are usually filtered at the hardware-level so there is
no need to filter the frames in software.

For test purposes, a new link endpoint was introduced to filter frames
based on their destination.

PiperOrigin-RevId: 350422941

1 files changed, 15 insertions, 1 deletions

diff --git a/pkg/tcpip/link/ethernet/BUILD b/pkg/tcpip/link/ethernet/BUILD
index ec92ed623..0ae0d201a 100644
--- a/pkg/tcpip/link/ethernet/BUILD
+++ b/pkg/tcpip/link/ethernet/BUILD
@@ -1,4 +1,4 @@
-load("//tools:defs.bzl", "go_library")
+load("//tools:defs.bzl", "go_library", "go_test")
 
 package(licenses = ["notice"])
 
@@ -13,3 +13,17 @@ go_library(
         "//pkg/tcpip/stack",
     ],
 )
+
+go_test(
+    name = "ethernet_test",
+    size = "small",
+    srcs = ["ethernet_test.go"],
+    deps = [
+        ":ethernet",
+        "//pkg/tcpip",
+        "//pkg/tcpip/buffer",
+        "//pkg/tcpip/header",
+        "//pkg/tcpip/link/channel",
+        "//pkg/tcpip/stack",
+    ],
+)