You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
63 lines
1.7 KiB
63 lines
1.7 KiB
/* |
|
* Copyright (C) 2012 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 <stdio.h> |
|
#include <stdlib.h> |
|
#include <sys/types.h> |
|
#include <sys/wait.h> |
|
#include <errno.h> |
|
#include <string.h> |
|
#include <unistd.h> |
|
|
|
#define LOG_TAG "OemIptablesHook" |
|
#include <cutils/log.h> |
|
#include <logwrap/logwrap.h> |
|
#include "NetdConstants.h" |
|
|
|
static bool oemCleanupHooks() { |
|
std::string cmd = |
|
"*filter\n" |
|
":oem_out -\n" |
|
":oem_fwd -\n" |
|
"COMMIT\n" |
|
"*nat\n" |
|
":oem_nat_pre -\n" |
|
"COMMIT\n"; |
|
|
|
return (execIptablesRestore(V4V6, cmd) == 0); |
|
} |
|
|
|
static bool oemInitChains() { |
|
int ret = system(OEM_SCRIPT_PATH); |
|
if ((-1 == ret) || (0 != WEXITSTATUS(ret))) { |
|
ALOGE("%s failed: %s", OEM_SCRIPT_PATH, strerror(errno)); |
|
oemCleanupHooks(); |
|
return false; |
|
} |
|
return true; |
|
} |
|
|
|
|
|
void setupOemIptablesHook() { |
|
if (0 == access(OEM_SCRIPT_PATH, R_OK | X_OK)) { |
|
// The call to oemCleanupHooks() is superfluous when done on bootup, |
|
// but is needed for the case where netd has crashed/stopped and is |
|
// restarted. |
|
if (oemCleanupHooks() && oemInitChains()) { |
|
ALOGI("OEM iptable hook installed."); |
|
} |
|
} |
|
}
|
|
|