1 /* 2 * Copyright (C) 2018 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #include <linux/bpf.h> 18 #include "bpf_kern.h" 19 20 21 ELF_SEC(BPF_CGROUP_INGRESS_PROG_NAME) 22 int bpf_cgroup_ingress(struct __sk_buff* skb) { 23 return bpf_traffic_account(skb, BPF_INGRESS); 24 } 25 26 ELF_SEC(BPF_CGROUP_EGRESS_PROG_NAME) 27 int bpf_cgroup_egress(struct __sk_buff* skb) { 28 return bpf_traffic_account(skb, BPF_EGRESS); 29 } 30 31 ELF_SEC(XT_BPF_EGRESS_PROG_NAME) 32 int xt_bpf_egress_prog(struct __sk_buff* skb) { 33 uint32_t key = skb->ifindex; 34 bpf_update_stats(skb, IFACE_STATS_MAP, BPF_EGRESS, &key); 35 return BPF_PASS; 36 } 37 38 ELF_SEC(XT_BPF_INGRESS_PROG_NAME) 39 int xt_bpf_ingress_prog(struct __sk_buff* skb) { 40 uint32_t key = skb->ifindex; 41 bpf_update_stats(skb, IFACE_STATS_MAP, BPF_INGRESS, &key); 42 return BPF_PASS; 43 } 44
