AF_PACKET support for netstack (aka epsocket).

Like (AF_INET, SOCK_RAW) sockets, AF_PACKET sockets require CAP_NET_RAW. With
runsc, you'll need to pass `--net-raw=true` to enable them.

Binding isn't supported yet.

PiperOrigin-RevId: 275909366

1 files changed, 46 insertions, 0 deletions

diff --git a/pkg/tcpip/transport/packet/BUILD b/pkg/tcpip/transport/packet/BUILD
new file mode 100644
index 000000000..8ea2e6ee5
--- /dev/null
+++ b/pkg/tcpip/transport/packet/BUILD
@@ -0,0 +1,46 @@
+load("//tools/go_generics:defs.bzl", "go_template_instance")
+load("//tools/go_stateify:defs.bzl", "go_library")
+
+package(licenses = ["notice"])
+
+go_template_instance(
+    name = "packet_list",
+    out = "packet_list.go",
+    package = "packet",
+    prefix = "packet",
+    template = "//pkg/ilist:generic_list",
+    types = {
+        "Element": "*packet",
+        "Linker": "*packet",
+    },
+)
+
+go_library(
+    name = "packet",
+    srcs = [
+        "endpoint.go",
+        "endpoint_state.go",
+        "packet_list.go",
+    ],
+    importpath = "gvisor.dev/gvisor/pkg/tcpip/transport/packet",
+    imports = ["gvisor.dev/gvisor/pkg/tcpip/buffer"],
+    visibility = ["//visibility:public"],
+    deps = [
+        "//pkg/log",
+        "//pkg/sleep",
+        "//pkg/tcpip",
+        "//pkg/tcpip/buffer",
+        "//pkg/tcpip/header",
+        "//pkg/tcpip/iptables",
+        "//pkg/tcpip/stack",
+        "//pkg/waiter",
+    ],
+)
+
+filegroup(
+    name = "autogen",
+    srcs = [
+        "packet_list.go",
+    ],
+    visibility = ["//:sandbox"],
+)