1 files changed, 0 insertions, 98 deletions
diff --git a/common/native/bpf_headers/include/bpf/BpfUtils.h b/common/native/bpf_headers/include/bpf/BpfUtils.h
deleted file mode 100644
index 9dd5822a..00000000
--- a/common/native/bpf_headers/include/bpf/BpfUtils.h
+++ /dev/null
@@ -1,98 +0,0 @@
-/*
- * 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.
- */
-
-#pragma once
-
-#include <errno.h>
-#include <linux/if_ether.h>
-#include <linux/pfkeyv2.h>
-#include <net/if.h>
-#include <stdlib.h>
-#include <string.h>
-#include <sys/resource.h>
-#include <sys/socket.h>
-#include <sys/utsname.h>
-
-#include <log/log.h>
-
-#include "KernelUtils.h"
-
-namespace android {
-namespace bpf {
-
-// See kernel's net/core/sock_diag.c __sock_gen_cookie()
-// the implementation of which guarantees 0 will never be returned,
-// primarily because 0 is used to mean not yet initialized,
-// and socket cookies are only assigned on first fetch.
-constexpr const uint64_t NONEXISTENT_COOKIE = 0;
-
-static inline uint64_t getSocketCookie(int sockFd) {
-    uint64_t sock_cookie;
-    socklen_t cookie_len = sizeof(sock_cookie);
-    if (getsockopt(sockFd, SOL_SOCKET, SO_COOKIE, &sock_cookie, &cookie_len)) {
-        // Failure is almost certainly either EBADF or ENOTSOCK
-        const int err = errno;
-        ALOGE("Failed to get socket cookie: %s\n", strerror(err));
-        errno = err;
-        return NONEXISTENT_COOKIE;
-    }
-    if (cookie_len != sizeof(sock_cookie)) {
-        // This probably cannot actually happen, but...
-        ALOGE("Failed to get socket cookie: len %d != 8\n", cookie_len);
-        errno = 523; // EBADCOOKIE: kernel internal, seems reasonable enough...
-        return NONEXISTENT_COOKIE;
-    }
-    return sock_cookie;
-}
-
-static inline int synchronizeKernelRCU() {
-    // This is a temporary hack for network stats map swap on devices running
-    // 4.9 kernels. The kernel code of socket release on pf_key socket will
-    // explicitly call synchronize_rcu() which is exactly what we need.
-    //
-    // Linux 4.14/4.19/5.4/5.10/5.15/6.1 (and 6.3-rc5) still have this same behaviour.
-    // see net/key/af_key.c: pfkey_release() -> synchronize_rcu()
-    // https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/net/key/af_key.c?h=v6.3-rc5#n185
-    const int pfSocket = socket(AF_KEY, SOCK_RAW | SOCK_CLOEXEC, PF_KEY_V2);
-
-    if (pfSocket < 0) {
-        const int err = errno;
-        ALOGE("create PF_KEY socket failed: %s", strerror(err));
-        return -err;
-    }
-
-    // When closing socket, synchronize_rcu() gets called in sock_release().
-    if (close(pfSocket)) {
-        const int err = errno;
-        ALOGE("failed to close the PF_KEY socket: %s", strerror(err));
-        return -err;
-    }
-    return 0;
-}
-
-static inline int setrlimitForTest() {
-    // Set the memory rlimit for the test process if the default MEMLOCK rlimit is not enough.
-    struct rlimit limit = {
-            .rlim_cur = 1073741824,  // 1 GiB
-            .rlim_max = 1073741824,  // 1 GiB
-    };
-    const int res = setrlimit(RLIMIT_MEMLOCK, &limit);
-    if (res) ALOGE("Failed to set the default MEMLOCK rlimit: %s", strerror(errno));
-    return res;
-}
-
-}  // namespace bpf
-}  // namespace android