// SPDX-License-Identifier: GPL-2.0-only /* * Copyright 2020 Google LLC. */ #include <errno.h> #include <linux/bpf.h> #include <linux/ip.h> #include <linux/udp.h> #include <bpf/bpf_helpers.h> #include "progs/cg_storage_multi.h" struct { __uint(type, BPF_MAP_TYPE_CGROUP_STORAGE); __type(key, struct bpf_cgroup_storage_key); __type(value, struct cgroup_value); } cgroup_storage SEC(".maps"); __u32 invocations = 0; SEC("cgroup_skb/egress") int egress1(struct __sk_buff *skb) { struct cgroup_value *ptr_cg_storage = bpf_get_local_storage(&cgroup_storage, 0); __sync_fetch_and_add(&ptr_cg_storage->egress_pkts, 1); __sync_fetch_and_add(&invocations, 1); return 1; } SEC("cgroup_skb/egress") int egress2(struct __sk_buff *skb) { struct cgroup_value *ptr_cg_storage = bpf_get_local_storage(&cgroup_storage, 0); __sync_fetch_and_add(&ptr_cg_storage->egress_pkts, 1); __sync_fetch_and_add(&invocations, 1); return 1; } SEC("cgroup_skb/ingress") int ingress(struct __sk_buff *skb) { struct cgroup_value *ptr_cg_storage = bpf_get_local_storage(&cgroup_storage, 0); __sync_fetch_and_add(&ptr_cg_storage->ingress_pkts, 1); __sync_fetch_and_add(&invocations, 1); return 1; }