转Android(安卓)安全攻防（一）：SEAndroid的编译
Android 安全攻防（一）：SEAndroid的编译
转自： http://blog.csdn.net/yiyaaixuexi/article/details/8330645SEAndroid的编译
SEAndroid概述
SEAndroid（Security-Enhanced Android），是将原本运用在Linux操作系统上的MAC强制存取控管套件SELinux，移植到Android平台上。可以用来强化Android操作系统对App的存取控管，建立类似沙箱的执行隔离效果，来确保每一个App之间的独立运作，也因此可以阻止恶意App对系统或其它应用程序的攻击。
SEAndroid的中心理念是，即使root权限被篡夺，只求阻止应用的恶意行为。
下载源码
1.把源码全部拉下来
git clone https://bitbucket.org/seandroid/manifests.gitmkdir seandroidcd seandroidrepo init -u https://android.googlesource.com/platform/manifestrepo synccp ../manifests/local_manifest.xml .reporepo sync
2.拉下来对应分支的代码
如果已有Android系统源码，可以直接使用
Base Version SE Branch
android-4.2.1_r1 seandroid-4.2
android-4.1.2_r1 seandroid-4.1.2
android-4.1.1_r6.1 seandroid-4.1.1
android-4.0.4_r2.1 seandroid-4.0.4
git clone -b seandroid-4.0.4 https://bitbucket.org/seandroid/manifests.git
mkdir Android_src
cd Android_src
cp ../manifests/local_manifest.xml .repo/
repo sync
编译
先编个虚拟机版本，内核需要有SELinux支持，暂先使用默认的config：
export PREFIX=/path/to/your/aospclonecd $PREFIX/kernel/goldfishmake ARCH=arm goldfish_armv7_defconfig
make ARCH=arm CROSS_COMPILE=$PREFIX/prebuilt/linux-x86/toolchain/arm-eabi-4.4.3/bin/arm-eabi-
以下是编译Android 4.0.4的常见错误，这些错误的解决办法收录自互联网。
Google group有个专门的Android Building组，有兴趣的可以加入。
################# Fix 1 ##########################
Error:
frameworks/base/include/utils/KeyedVector.h:193:31: note: declarations in dependent base ‘android::KeyedVector<android::String8, android::sp<AaptDir> >’ are not found by unqualified lookup
frameworks/base/include/utils/KeyedVector.h:193:31: note: use ‘this->indexOfKey’ instead make: *** [out/host/linux-x86/obj/EXECUTABLES/aapt_intermediates/AaptAssets.o] Error 1Fix:
vi frameworks/base/tools/aapt/Android.mk
Add '-fpermissive' to line 31:
LOCAL_CFLAGS += -Wno-format-y2k -fpermissive
################## Fix 2 ##########################
Error： frameworks/base/include/utils/KeyedVector.h:193:31: error: ‘indexOfKey’ was not declared in this scope, and no declarations were found by argument-dependent lookup at the point of instantiation [-fpermissive] frameworks/base/include/utils/KeyedVector.h:193:31: note: declarations in dependent base ‘android::KeyedVector<android::String8, android::wp<android::AssetManager::SharedZip> >’ are not found by unqualified lookup
frameworks/base/include/utils/KeyedVector.h:193:31: note: use ‘this->indexOfKey’ instead make: *** [out/host/linux-x86/obj/STATIC_LIBRARIES/libutils_intermediates/AssetManager.o] Error 1
Fix:
vi frameworks/base/libs/utils/Android.mk
Add '-fpermissive' to line 64:
LOCAL_CFLAGS += -DLIBUTILS_NATIVE=1 $(TOOL_CFLAGS) -fpermissive
################## Fix 3 ##########################
Error:
external/srec/tools/thirdparty/OpenFst/fst/lib/cache.h:136:11: note: use ‘this->SetState’ instead
make: *** [out/host/linux-x86/obj/EXECUTABLES/grxmlcompile_intermediates/grxmlcompile.o] Error 1
Fix:
cd external/srec
wget " https://github.com/CyanogenMod/android_external_srec/commit/4d7ae7b79eda47e489669fbbe1f91ec501d42fb2.diff"
patch -p1 < 4d7ae7b79eda47e489669fbbe1f91ec501d42fb2.diff
rm -f 4d7ae7b79eda47e489669fbbe1f91ec501d42fb2.diff
cd ../..
################## Fix 4 ##########################
Error:
development/tools/emulator/opengl/host/tools/emugen/main.cpp:79:9: error: ‘optind’ was not declared in this scope
development/tools/emulator/opengl/host/tools/emugen/main.cpp:92:45: error: ‘optind’ was not declared in this scope
make: *** [out/host/linux-x86/obj/EXECUTABLES/emugen_intermediates/main.o] Error 1
Fix:
vi development/tools/emulator/opengl/host/tools/emugen/main.cpp
Add '#include <getopt.h>' to list of includes:
#include <getopt.h>
################## Fix 5 ##########################
Error:
host C++: liboprofile_pp <= external/oprofile/libpp/arrange_profiles.cpp
In file included from external/oprofile/libpp/arrange_profiles.cpp:24:0:
external/oprofile/libpp/format_output.h:94:22: error: reference ‘counts’ cannot be declared ‘mutable’ [-fpermissive]
make: *** [out/host/linux-x86/obj/STATIC_LIBRARIES/liboprofile_pp_intermediates/arrange_profiles.o] Error 1
Fix:
vi external/oprofile/libpp/format_output.h
Remove 'mutable' from 'mutable counts_t & counts;' on line 94:
counts_t & counts;
################## Fix 6 ##########################
Error:
development/tools/emulator/opengl/shared/OpenglCodecCommon/GLSharedGroup.cpp:345:65: required from here
frameworks/base/include/utils/KeyedVector.h:193:31: error: ‘indexOfKey’ was not declared in this scope, and no declarations were found by argument-dependent lookup at the point of instantiation [-fpermissive] frameworks/base/include/utils/KeyedVector.h:193:31: note: declarations in dependent base ‘android::KeyedVector<unsigned int, ShaderData*>’ are not found by unqualified lookup
frameworks/base/include/utils/KeyedVector.h:193:31: note: use ‘this->indexOfKey’ instead make: *** [out/host/linux-x86/obj/STATIC_LIBRARIES/libOpenglCodecCommon_intermediates/GLSharedGroup.o] Error 1
Fix:
vi development/tools/emulator/opengl/Android.mk
Add '-fpermissive' to line 25:
EMUGL_COMMON_CFLAGS := -DWITH_GLES2 -fpermissive
################## Fix 7 ##########################
Error:
/usr/bin/ld: note: 'XInitThreads' is defined in DSO /lib/libX11.so.6 so try adding it to the linker command line
/lib/libX11.so.6: could not read symbols: Invalid operation
collect2: error: ld returned 1 exit status
make: *** [out/host/linux-x86/obj/EXECUTABLES/emulator_renderer_intermediates/emulator_renderer] Error 1
Fix:
vi development/tools/emulator/opengl/host/renderer/Android.mk
Add new entry 'LOCAL_LDLIBS += -lX11' after line 6 as shown:
LOCAL_SRC_FILES := main.cpp
LOCAL_CFLAGS += -O0 -g
LOCAL_LDLIBS += -lX11
#ifeq ($(HOST_OS),windows)
#LOCAL_LDLIBS += -lws2_32
################## Fix 8 ##########################
Error:
external/llvm/include/llvm/ADT/PointerUnion.h:56:10: error: enumeral mismatch in conditional expression: ‘llvm::PointerLikeTypeTraits<llvm::PointerUnion<clang::Stmt*, const clang::Type*> >::<anonymous enum>’ vs ‘llvm::PointerLikeTypeTraits<clang::ObjCInterfaceDecl*>::<anonymous enum>’ [-Werror]
cc1plus: all warnings being treated as errors
make: *** [out/host/linux-x86/obj/EXECUTABLES/llvm-rs-cc_intermediates/slang_rs.o] Error 1
Fix:
vi frameworks/compile/slang/Android.mk
Remove '-Werror' from line 22:
local_cflags_for_slang := -Wno-sign-promo -Wall -Wno-unused-parameter
################## Fix 9 ##########################
Error:
frameworks/base/libs/rs/rsFont.cpp:224:76: required from here
frameworks/base/include/utils/KeyedVector.h:193:31: error: ‘indexOfKey’ was not declared in this scope, and no declarations were found by argument-dependent lookup at the point of instantiation [-fpermissive] frameworks/base/include/utils/KeyedVector.h:193:31: note: declarations in dependent base ‘android::KeyedVector<unsigned int, android::renderscript::Font::CachedGlyphInfo*>’ are not found by unqualified lookup
frameworks/base/include/utils/KeyedVector.h:193:31: note: use ‘this->indexOfKey’ instead make: *** [out/host/linux-x86/obj/STATIC_LIBRARIES/libRS_intermediates/rsFont.o] Error 1
Fix:
vi frameworks/base/libs/rs/Android.mk
Add '-fpermissive' to line 183
LOCAL_CFLAGS += -Werror -Wall -Wno-unused-parameter -Wno-unused-variable -fpermissive
################## Fix 10 #########################
Error:
external/mesa3d/src/glsl/linker.cpp:1394:49: error: expected primary-expression before ‘,’ token
......
external/mesa3d/src/glsl/linker.cpp:1734:59: error: ‘offsetof’ was not declared in this scope
make: *** [out/host/linux-x86/obj/STATIC_LIBRARIES/libMesa_intermediates/src/glsl/linker.o] Error 1
Fix:
vi external/mesa3d/src/glsl/linker.cpp
Add '#include <stddef.h>' to list of includes as shown:
#include <climits>
#include <stddef.h>
#include <pixelflinger2/pixelflinger2_interface.h>
################## Fix 11 #########################
Error:
external/gtest/src/../include/gtest/gtest-param-test.h:287:58: note: ‘template<class Container> testing::internal::ParamGenerator<typename Container::value_type> testing::ValuesIn(const Container&)’ declared here, later in the translation unit
make: *** [out/host/linux-x86/obj/STATIC_LIBRARIES/libgtest_host_intermediates/gtest-all.o] Error 1
Two fixes required:
1)
vi external/gtest/src/Android.mk
Add '-fpermissive' to lines 52 and 70 (both lines contain same info)
LOCAL_CFLAGS += -O0 -fpermissive
2)
vi external/gtest/include/gtest/internal/gtest-param-util.h
Add '#include <stddef.h>' to list of includes as shown:
#include <vector>
#include <cstddef>
#include <gtest/internal/gtest-port.h>
################## Fix 12 ######################### Error:
host Executable: test-librsloader (out/host/linux-x86/obj/EXECUTABLES/test-librsloader_intermediates/test-librsloader)
out/host/linux-x86/obj/STATIC_LIBRARIES/libLLVMSupport_intermediates/libLLVMSupport.a(Signals.o)：在函数‘PrintStackTrace’中：
/home/crow/works/Android_src/external/llvm/lib/Support/Unix/Signals.inc:219：对‘dladdr’未定义的引用
/home/crow/works/Android_src/external/llvm/lib/Support/Unix/Signals.inc:231：对‘dladdr’未定义的引用
out/host/linux-x86/obj/STATIC_LIBRARIES/libLLVMSupport_intermediates/libLLVMSupport.a(Threading.o)：在函数‘llvm::llvm_execute_on_thread(void (*)(void*), void*, unsigned int)’中：
/home/crow/works/Android_src/external/llvm/lib/Support/Threading.cpp:96：对‘pthread_create’未定义的引用
/home/crow/works/Android_src/external/llvm/lib/Support/Threading.cpp:100：对‘pthread_join’未定义的引用
/home/crow/works/Android_src/external/llvm/lib/Support/Threading.cpp:91：对‘pthread_attr_setstacksize’未定义的引用
out/host/linux-x86/obj/STATIC_LIBRARIES/libLLVMSupport_intermediates/libLLVMSupport.a(Mutex.o)：在函数‘llvm::sys::MutexImpl::MutexImpl(bool)’中：
/home/crow/works/Android_src/external/llvm/lib/Support/Mutex.cpp:69：对‘pthread_mutexattr_init’未定义的引用
/home/crow/works/Android_src/external/llvm/lib/Support/Mutex.cpp:75：对‘pthread_mutexattr_settype’未定义的引用
/home/crow/works/Android_src/external/llvm/lib/Support/Mutex.cpp:80：对‘pthread_mutexattr_setpshared’未定义的引用
/home/crow/works/Android_src/external/llvm/lib/Support/Mutex.cpp:89：对‘pthread_mutexattr_destroy’未定义的引用
out/host/linux-x86/obj/STATIC_LIBRARIES/libLLVMSupport_intermediates/libLLVMSupport.a(Mutex.o)：在函数‘llvm::sys::MutexImpl::tryacquire()’中：
/home/crow/works/Android_src/external/llvm/lib/Support/Mutex.cpp:143：对‘pthread_mutex_trylock’未定义的引用
collect2: 错误： ld 返回 1
make: *** [out/host/linux-x86/obj/EXECUTABLES/test-librsloader_intermediates/test-librsloader] 错误 1
Fix:
$vi external/llvm/llvm-host-build.mk +
LOCAL_LDLIBS := -lpthread -ldl
运行测试
用上一步编译出的内核来起动模拟器
emulator -show-kernel -kernel kernel/goldfish/arch/arm/boot/zImage
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