5390b9add4
apexd is now blocked by sepolicy, so skip checking it to
prevent an avc warning.
See system/sepolicy commit ac097ac4c7718f8593f2b6b96a93a776984ec7c4
Addresses the following SELinux denial:
type=1400 audit(0.0:386): avc: denied { ptrace } for comm="llkd" scontext=u:r:llkd:s0 tcontext=u:r:apexd:s0 tclass=process permissive=0
Test: manual
Change-Id: Iad24447c8200e915ac8397a8f84923feebc20613
85 lines
3.4 KiB
C++
85 lines
3.4 KiB
C++
/*
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* Copyright (C) 2018 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef _LLKD_H_
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#define _LLKD_H_
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#ifndef LOG_TAG
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#define LOG_TAG "livelock"
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#endif
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#include <stdbool.h>
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#include <sys/cdefs.h>
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__BEGIN_DECLS
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bool llkInit(const char* threadname); /* threadname NULL, not spawned */
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unsigned llkCheckMilliseconds(void);
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/* clang-format off */
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#define LLK_ENABLE_WRITEABLE_PROPERTY "llk.enable"
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#define LLK_ENABLE_PROPERTY "ro." LLK_ENABLE_WRITEABLE_PROPERTY
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#define LLK_ENABLE_DEFAULT false /* "eng" and userdebug true */
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#define KHT_ENABLE_WRITEABLE_PROPERTY "khungtask.enable"
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#define KHT_ENABLE_PROPERTY "ro." KHT_ENABLE_WRITEABLE_PROPERTY
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#define LLK_MLOCKALL_PROPERTY "ro.llk.mlockall"
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#define LLK_MLOCKALL_DEFAULT true
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#define LLK_KILLTEST_PROPERTY "ro.llk.killtest"
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#define LLK_KILLTEST_DEFAULT true
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#define LLK_TIMEOUT_MS_PROPERTY "ro.llk.timeout_ms"
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#define KHT_TIMEOUT_PROPERTY "ro.khungtask.timeout"
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#define LLK_D_TIMEOUT_MS_PROPERTY "ro.llk.D.timeout_ms"
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#define LLK_Z_TIMEOUT_MS_PROPERTY "ro.llk.Z.timeout_ms"
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#define LLK_STACK_TIMEOUT_MS_PROPERTY "ro.llk.stack.timeout_ms"
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#define LLK_CHECK_MS_PROPERTY "ro.llk.check_ms"
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/* LLK_CHECK_MS_DEFAULT = actual timeout_ms / LLK_CHECKS_PER_TIMEOUT_DEFAULT */
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#define LLK_CHECKS_PER_TIMEOUT_DEFAULT 5
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#define LLK_CHECK_STACK_PROPERTY "ro.llk.stack"
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#define LLK_CHECK_STACK_DEFAULT "cma_alloc,__get_user_pages"
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#define LLK_BLACKLIST_PROCESS_PROPERTY "ro.llk.blacklist.process"
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#define LLK_BLACKLIST_PROCESS_DEFAULT \
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"0,1,2,init,[kthreadd],[khungtaskd],lmkd,lmkd.llkd,llkd,watchdogd,[watchdogd],[watchdogd/0]"
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#define LLK_BLACKLIST_PARENT_PROPERTY "ro.llk.blacklist.parent"
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#define LLK_BLACKLIST_PARENT_DEFAULT "0,2,[kthreadd]"
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#define LLK_BLACKLIST_UID_PROPERTY "ro.llk.blacklist.uid"
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#define LLK_BLACKLIST_UID_DEFAULT ""
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#define LLK_BLACKLIST_STACK_PROPERTY "ro.llk.blacklist.process.stack"
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#define LLK_BLACKLIST_STACK_DEFAULT "init,lmkd.llkd,llkd,keystore,/system/bin/keystore,ueventd,apexd"
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/* clang-format on */
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__END_DECLS
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#ifdef __cplusplus
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extern "C++" { /* In case this included wrapped with __BEGIN_DECLS */
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#include <chrono>
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__BEGIN_DECLS
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/* C++ code allowed to not specify threadname argument for this C linkage */
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bool llkInit(const char* threadname = nullptr);
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__END_DECLS
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std::chrono::milliseconds llkCheck(bool checkRunning = false);
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/* clang-format off */
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#define LLK_TIMEOUT_MS_DEFAULT std::chrono::duration_cast<milliseconds>(std::chrono::minutes(10))
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#define LLK_TIMEOUT_MS_MINIMUM std::chrono::duration_cast<std::chrono::milliseconds>(std::chrono::seconds(10))
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#define LLK_CHECK_MS_MINIMUM std::chrono::duration_cast<std::chrono::milliseconds>(std::chrono::seconds(1))
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/* clang-format on */
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} /* extern "C++" */
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#endif /* __cplusplus */
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#endif /* _LLKD_H_ */
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