diff --git a/libbpf/include/bpf/BpfUtils.h b/libbpf/include/bpf/BpfUtils.h
new file mode 100644
index 0000000..ed31758
--- /dev/null
+++ b/libbpf/include/bpf/BpfUtils.h
@@ -0,0 +1,168 @@
+/*
+ * Copyright (C) 2017 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.
+ */
+
+#ifndef BPF_BPFUTILS_H
+#define BPF_BPFUTILS_H
+
+#include <linux/bpf.h>
+#include <linux/if_ether.h>
+#include <linux/in.h>
+#include <linux/unistd.h>
+#include <net/if.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/socket.h>
+
+#include "android-base/unique_fd.h"
+#include "netdutils/Slice.h"
+#include "netdutils/StatusOr.h"
+
+#define BPF_PASS 1
+#define BPF_DROP 0
+
+#define ptr_to_u64(x) ((uint64_t)(uintptr_t)(x))
+#define DEFAULT_LOG_LEVEL 1
+
+#define MAP_LD_CMD_HEAD 0x18
+#define ARRAY_SIZE(a) (sizeof(a) / sizeof(*(a)))
+
+// The BPF instruction bytes that we need to replace. x is a placeholder (e.g., COOKIE_TAG_MAP).
+#define BPF_MAP_SEARCH_PATTERN(x)                                                               \
+    {                                                                                           \
+        0x18, 0x01, 0x00, 0x00,                                                                 \
+        (x)[0], (x)[1], (x)[2], (x)[3],                                                         \
+        0x00, 0x00, 0x00, 0x00,                                                                 \
+        (x)[4], (x)[5], (x)[6], (x)[7]                                                          \
+    }
+
+// The bytes we'll replace them with. x is the actual fd number for the map at runtime.
+// The second byte is changed from 0x01 to 0x11 since 0x11 is the special command used
+// for bpf map fd loading. The original 0x01 is only a normal load command.
+#define BPF_MAP_REPLACE_PATTERN(x)                                                              \
+    {                                                                                           \
+        0x18, 0x11, 0x00, 0x00,                                                                 \
+        (x)[0], (x)[1], (x)[2], (x)[3],                                                         \
+        0x00, 0x00, 0x00, 0x00,                                                                 \
+        (x)[4], (x)[5], (x)[6], (x)[7]                                                          \
+    }
+
+#define MAP_CMD_SIZE 16
+
+namespace android {
+namespace bpf {
+
+struct UidTag {
+    uint32_t uid;
+    uint32_t tag;
+};
+
+struct StatsKey {
+    uint32_t uid;
+    uint32_t tag;
+    uint32_t counterSet;
+    uint32_t ifaceIndex;
+};
+
+struct StatsValue {
+    uint64_t rxPackets;
+    uint64_t rxBytes;
+    uint64_t txPackets;
+    uint64_t txBytes;
+};
+
+struct Stats {
+    uint64_t rxBytes;
+    uint64_t rxPackets;
+    uint64_t txBytes;
+    uint64_t txPackets;
+    uint64_t tcpRxPackets;
+    uint64_t tcpTxPackets;
+};
+
+struct IfaceValue {
+    char name[IFNAMSIZ];
+};
+
+struct BpfProgInfo {
+    bpf_attach_type attachType;
+    const char* path;
+    const char* name;
+    bpf_prog_type loadType;
+    base::unique_fd fd;
+};
+
+int mapRetrieve(const char* pathname, uint32_t flags);
+
+struct BpfMapInfo {
+    std::array<uint8_t, MAP_CMD_SIZE> search;
+    std::array<uint8_t, MAP_CMD_SIZE> replace;
+    const int fd;
+    std::string path;
+
+    BpfMapInfo(uint64_t dummyFd, const char* mapPath)
+        : BpfMapInfo(dummyFd, android::bpf::mapRetrieve(mapPath, 0)) {}
+
+    BpfMapInfo(uint64_t dummyFd, int realFd, const char* mapPath = "") : fd(realFd), path(mapPath) {
+        search = BPF_MAP_SEARCH_PATTERN((uint8_t*) &dummyFd);
+        replace = BPF_MAP_REPLACE_PATTERN((uint8_t*) &realFd);
+    }
+};
+
+#ifndef DEFAULT_OVERFLOWUID
+#define DEFAULT_OVERFLOWUID 65534
+#endif
+
+constexpr const char* CGROUP_ROOT_PATH = "/dev/cg2_bpf";
+
+constexpr const int OVERFLOW_COUNTERSET = 2;
+
+constexpr const uint64_t NONEXISTENT_COOKIE = 0;
+
+constexpr const int MINIMUM_API_REQUIRED = 28;
+
+int createMap(bpf_map_type map_type, uint32_t key_size, uint32_t value_size,
+              uint32_t max_entries, uint32_t map_flags);
+int writeToMapEntry(const base::unique_fd& map_fd, void* key, void* value, uint64_t flags);
+int findMapEntry(const base::unique_fd& map_fd, void* key, void* value);
+int deleteMapEntry(const base::unique_fd& map_fd, void* key);
+int getNextMapKey(const base::unique_fd& map_fd, void* key, void* next_key);
+int getFirstMapKey(const base::unique_fd& map_fd, void* firstKey);
+int bpfProgLoad(bpf_prog_type prog_type, netdutils::Slice bpf_insns, const char* license,
+                uint32_t kern_version, netdutils::Slice bpf_log);
+int bpfFdPin(const base::unique_fd& map_fd, const char* pathname);
+int attachProgram(bpf_attach_type type, uint32_t prog_fd, uint32_t cg_fd);
+int detachProgram(bpf_attach_type type, uint32_t cg_fd);
+uint64_t getSocketCookie(int sockFd);
+bool hasBpfSupport();
+int parseProgramsFromFile(const char* path, BpfProgInfo* programs, size_t size,
+                          const std::vector<BpfMapInfo>& mapPatterns);
+
+#define SKIP_IF_BPF_NOT_SUPPORTED     \
+    do {                              \
+        if (!hasBpfSupport()) return; \
+    } while (0)
+
+constexpr int BPF_CONTINUE = 0;
+constexpr int BPF_DELETED = 1;
+
+bool operator==(const StatsValue& lhs, const StatsValue& rhs);
+bool operator==(const UidTag& lhs, const UidTag& rhs);
+bool operator==(const StatsKey& lhs, const StatsKey& rhs);
+
+}  // namespace bpf
+}  // namespace android
+
+#endif