New bpfloader netd kernel program
Change the netd bpf program to the new format. Adding map definition and
necessary helper functions to the kernel program code. Move the netd bpf
programs out of bpfloader to a new directory.
Test: dumpsys netd trafficcontroller
Bug: 112334572
Change-Id: I9287285d188e966193532b1522b5d3e67e32e930
diff --git a/progs/netd.c b/progs/netd.c
new file mode 100644
index 0000000..0ea51a9
--- /dev/null
+++ b/progs/netd.c
@@ -0,0 +1,61 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "netd.h"
+#include <linux/bpf.h>
+
+SEC("cgroupskb/ingress/stats")
+int bpf_cgroup_ingress(struct __sk_buff* skb) {
+ return bpf_traffic_account(skb, BPF_INGRESS);
+}
+
+SEC("cgroupskb/egress/stats")
+int bpf_cgroup_egress(struct __sk_buff* skb) {
+ return bpf_traffic_account(skb, BPF_EGRESS);
+}
+
+SEC("skfilter/egress/xtbpf")
+int xt_bpf_egress_prog(struct __sk_buff* skb) {
+ uint32_t key = skb->ifindex;
+ bpf_update_stats(skb, &iface_stats_map, BPF_EGRESS, &key);
+ return BPF_MATCH;
+}
+
+SEC("skfilter/ingress/xtbpf")
+int xt_bpf_ingress_prog(struct __sk_buff* skb) {
+ uint32_t key = skb->ifindex;
+ bpf_update_stats(skb, &iface_stats_map, BPF_INGRESS, &key);
+ return BPF_MATCH;
+}
+
+SEC("skfilter/whitelist/xtbpf")
+int xt_bpf_whitelist_prog(struct __sk_buff* skb) {
+ uint32_t sock_uid = get_socket_uid(skb);
+ if (is_system_uid(sock_uid)) return BPF_MATCH;
+ uint8_t* whitelistMatch = find_map_entry(&uid_owner_map, &sock_uid);
+ if (whitelistMatch) return *whitelistMatch & HAPPY_BOX_MATCH;
+ return BPF_NOMATCH;
+}
+
+SEC("skfilter/blacklist/xtbpf")
+int xt_bpf_blacklist_prog(struct __sk_buff* skb) {
+ uint32_t sock_uid = get_socket_uid(skb);
+ uint8_t* blacklistMatch = find_map_entry(&uid_owner_map, &sock_uid);
+ if (blacklistMatch) return *blacklistMatch & PENALTY_BOX_MATCH;
+ return BPF_NOMATCH;
+}
+
+char _license[] SEC("license") = "Apache 2.0";