adding an event on packet_socket_created_in_container

Signed-off-by: h4l0gen <[email protected]> rebased Signed-off-by: h4l0gen <[email protected]>
falcosecurity · Apr 24, 2024 · d2d9bdc · d2d9bdc
1 parent 31789dc
commit d2d9bdc
Showing 1 changed file with 40 additions and 0 deletions.
diff --git a/events/syscall/packet_socket_created_in_container.go b/events/syscall/packet_socket_created_in_container.go
@@ -0,0 +1,40 @@
+//go:build linux
+// +build linux
+
+// SPDX-License-Identifier: Apache-2.0
+/*
+Copyright (C) 2024 The Falco Authors.
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+    http://www.apache.org/licenses/LICENSE-2.0
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package syscall
+
+import (
+	"syscall"
+
+	"github.com/falcosecurity/event-generator/events"
+)
+
+var _ = events.Register(PacketSocketCreatedInContainer)
+
+func PacketSocketCreatedInContainer(h events.Helper) error {
+	if h.InContainer() {
+		fd, err := syscall.Socket(syscall.AF_PACKET, syscall.SOCK_RAW, int(syscall.ETH_P_ALL))
+		if err != nil {
+			return err
+		}
+		defer syscall.Close(fd)
+		syscall.Close(fd)
+	}
+	return &events.ErrSkipped{
+		Reason: "'Packet Socket Created In Container' is applicable only to containers.",
+	}
+}