480c70ac14
Test: builds, atest Bug: 146787904 Signed-off-by: Maciej Żenczykowski <maze@google.com> Change-Id: Iea667cf4adaccdfd8fbffae8960cbe243ae77d70
86 lines
2.2 KiB
C++
86 lines
2.2 KiB
C++
/*
|
|
* 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 LOG_TAG
|
|
#define LOG_TAG "bpfloader"
|
|
#endif
|
|
|
|
#include <arpa/inet.h>
|
|
#include <dirent.h>
|
|
#include <elf.h>
|
|
#include <error.h>
|
|
#include <fcntl.h>
|
|
#include <inttypes.h>
|
|
#include <linux/bpf.h>
|
|
#include <linux/unistd.h>
|
|
#include <net/if.h>
|
|
#include <stdint.h>
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <unistd.h>
|
|
|
|
#include <sys/mman.h>
|
|
#include <sys/socket.h>
|
|
#include <sys/stat.h>
|
|
#include <sys/types.h>
|
|
|
|
#include <android-base/properties.h>
|
|
#include <android-base/stringprintf.h>
|
|
#include <android-base/strings.h>
|
|
#include <android-base/unique_fd.h>
|
|
#include <libbpf_android.h>
|
|
#include <log/log.h>
|
|
#include <netdutils/Misc.h>
|
|
#include <netdutils/Slice.h>
|
|
#include "bpf/BpfUtils.h"
|
|
|
|
using android::base::EndsWith;
|
|
using std::string;
|
|
|
|
#define BPF_PROG_PATH "/system/etc/bpf/"
|
|
|
|
void loadAllElfObjects(void) {
|
|
DIR* dir;
|
|
struct dirent* ent;
|
|
|
|
if ((dir = opendir(BPF_PROG_PATH)) != NULL) {
|
|
while ((ent = readdir(dir)) != NULL) {
|
|
string s = ent->d_name;
|
|
if (!EndsWith(s, ".o")) continue;
|
|
|
|
string progPath = BPF_PROG_PATH + s;
|
|
|
|
int ret = android::bpf::loadProg(progPath.c_str());
|
|
ALOGI("Attempted load object: %s, ret: %s", progPath.c_str(), std::strerror(-ret));
|
|
}
|
|
closedir(dir);
|
|
}
|
|
}
|
|
|
|
int main() {
|
|
if (android::bpf::getBpfSupportLevel() != android::bpf::BpfLevel::NONE) {
|
|
// Load all ELF objects, create programs and maps, and pin them
|
|
loadAllElfObjects();
|
|
}
|
|
|
|
if (android::base::SetProperty("bpf.progs_loaded", "1") == false) {
|
|
ALOGE("Failed to set bpf.progs_loaded property\n");
|
|
return 1;
|
|
}
|
|
|
|
return 0;
|
|
}
|