diff --git a/events/syscall/packet_socket_created_in_container.go b/events/syscall/packet_socket_created_in_container.go new file mode 100644 index 00000000..3f0aa251 --- /dev/null +++ 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.", + } +}