75b410bdf1
Copied the files from system/netd into system/bpf. No modification is made to the files. Test: this doesn't build since the Android.bp file is missing Bug: 112334572 Change-Id: Ia090a429dd416e07c46766784fb3dd2037201525
60 lines
1.9 KiB
C
60 lines
1.9 KiB
C
/*
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* Copyright (C) 2018 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include <linux/bpf.h>
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#include "bpf_kern.h"
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ELF_SEC(BPF_CGROUP_INGRESS_PROG_NAME)
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int bpf_cgroup_ingress(struct __sk_buff* skb) {
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return bpf_traffic_account(skb, BPF_INGRESS);
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}
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ELF_SEC(BPF_CGROUP_EGRESS_PROG_NAME)
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int bpf_cgroup_egress(struct __sk_buff* skb) {
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return bpf_traffic_account(skb, BPF_EGRESS);
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}
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ELF_SEC(XT_BPF_EGRESS_PROG_NAME)
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int xt_bpf_egress_prog(struct __sk_buff* skb) {
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uint32_t key = skb->ifindex;
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bpf_update_stats(skb, IFACE_STATS_MAP, BPF_EGRESS, &key);
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return BPF_MATCH;
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}
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ELF_SEC(XT_BPF_INGRESS_PROG_NAME)
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int xt_bpf_ingress_prog(struct __sk_buff* skb) {
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uint32_t key = skb->ifindex;
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bpf_update_stats(skb, IFACE_STATS_MAP, BPF_INGRESS, &key);
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return BPF_MATCH;
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}
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ELF_SEC(XT_BPF_WHITELIST_PROG_NAME)
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int xt_bpf_whitelist_prog(struct __sk_buff* skb) {
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uint32_t sock_uid = get_socket_uid(skb);
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if (is_system_uid(sock_uid)) return BPF_MATCH;
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uint8_t* whitelistMatch = find_map_entry(UID_OWNER_MAP, &sock_uid);
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if (whitelistMatch) return *whitelistMatch & HAPPY_BOX_MATCH;
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return BPF_NOMATCH;
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}
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ELF_SEC(XT_BPF_BLACKLIST_PROG_NAME)
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int xt_bpf_blacklist_prog(struct __sk_buff* skb) {
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uint32_t sock_uid = get_socket_uid(skb);
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uint8_t* blacklistMatch = find_map_entry(UID_OWNER_MAP, &sock_uid);
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if (blacklistMatch) return *blacklistMatch & PENALTY_BOX_MATCH;
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return BPF_NOMATCH;
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}
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