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1// SPDX-License-Identifier: GPL-2.0-only2 3/*4 * Copyright 2020 Google LLC.5 */6 7#include <errno.h>8#include <linux/bpf.h>9#include <linux/ip.h>10#include <linux/udp.h>11#include <bpf/bpf_helpers.h>12 13#include "progs/cg_storage_multi.h"14 15struct {16 __uint(type, BPF_MAP_TYPE_CGROUP_STORAGE);17 __type(key, __u64);18 __type(value, struct cgroup_value);19} cgroup_storage SEC(".maps");20 21__u32 invocations = 0;22 23SEC("cgroup_skb/egress")24int egress1(struct __sk_buff *skb)25{26 struct cgroup_value *ptr_cg_storage =27 bpf_get_local_storage(&cgroup_storage, 0);28 29 __sync_fetch_and_add(&ptr_cg_storage->egress_pkts, 1);30 __sync_fetch_and_add(&invocations, 1);31 32 return 1;33}34 35SEC("cgroup_skb/egress")36int egress2(struct __sk_buff *skb)37{38 struct cgroup_value *ptr_cg_storage =39 bpf_get_local_storage(&cgroup_storage, 0);40 41 __sync_fetch_and_add(&ptr_cg_storage->egress_pkts, 1);42 __sync_fetch_and_add(&invocations, 1);43 44 return 1;45}46 47SEC("cgroup_skb/ingress")48int ingress(struct __sk_buff *skb)49{50 struct cgroup_value *ptr_cg_storage =51 bpf_get_local_storage(&cgroup_storage, 0);52 53 __sync_fetch_and_add(&ptr_cg_storage->ingress_pkts, 1);54 __sync_fetch_and_add(&invocations, 1);55 56 return 1;57}58