1d4a89c1eSYiFei Zhu // SPDX-License-Identifier: GPL-2.0-only 2d4a89c1eSYiFei Zhu 3d4a89c1eSYiFei Zhu /* 4d4a89c1eSYiFei Zhu * Copyright 2020 Google LLC. 5d4a89c1eSYiFei Zhu */ 6d4a89c1eSYiFei Zhu 7d4a89c1eSYiFei Zhu #include <errno.h> 8d4a89c1eSYiFei Zhu #include <linux/bpf.h> 9d4a89c1eSYiFei Zhu #include <linux/ip.h> 10d4a89c1eSYiFei Zhu #include <linux/udp.h> 11d4a89c1eSYiFei Zhu #include <bpf/bpf_helpers.h> 12d4a89c1eSYiFei Zhu 139e5bd1f7SYiFei Zhu #include "progs/cg_storage_multi.h" 149e5bd1f7SYiFei Zhu 15d4a89c1eSYiFei Zhu struct { 16d4a89c1eSYiFei Zhu __uint(type, BPF_MAP_TYPE_CGROUP_STORAGE); 17d4a89c1eSYiFei Zhu __type(key, struct bpf_cgroup_storage_key); 189e5bd1f7SYiFei Zhu __type(value, struct cgroup_value); 19d4a89c1eSYiFei Zhu } cgroup_storage SEC(".maps"); 20d4a89c1eSYiFei Zhu 21d4a89c1eSYiFei Zhu __u32 invocations = 0; 22d4a89c1eSYiFei Zhu 23d4a89c1eSYiFei Zhu SEC("cgroup_skb/egress") egress(struct __sk_buff * skb)24d4a89c1eSYiFei Zhuint egress(struct __sk_buff *skb) 25d4a89c1eSYiFei Zhu { 269e5bd1f7SYiFei Zhu struct cgroup_value *ptr_cg_storage = 279e5bd1f7SYiFei Zhu bpf_get_local_storage(&cgroup_storage, 0); 28d4a89c1eSYiFei Zhu 299e5bd1f7SYiFei Zhu __sync_fetch_and_add(&ptr_cg_storage->egress_pkts, 1); 30d4a89c1eSYiFei Zhu __sync_fetch_and_add(&invocations, 1); 31d4a89c1eSYiFei Zhu 32d4a89c1eSYiFei Zhu return 1; 33d4a89c1eSYiFei Zhu } 34