在init.AAA.rc里面添加了一個腳本啟動的服務:
service AAA /vendor/bin/sh /vendor/etc/AAA_spec.sh
user root
group root
disabled
oneshot
on post-fs-data
start AAA
在系統啟動時通過dmesg | grep init查看發現出現:Service AAA does not have a SELinux domain defined
解決方法:
1.在devices/vendorxxx/sepolicy/common/目錄下新增AAA.te文件,內容如下:
type AAA, domain;
type AAA_exec, exec_type, vendor_file_type,file_type;
init_daemon_domain(AAA)
allow AAA vendor_shell_exec:file { entrypoint };
2.在devices/vendorxxx/sepolicy/Android.mk文件中添加:
BOARD_SEPOLICY_DIRS += devices/vendorxxx/sepolicy/common/
3.在devices/vendorxxx/sepolicy/common/file_contexts中添加:
##add for AAA file permission##
/(vendor|system/vendor)/etc/AAA_spec\.sh u:object_r:AAA_exec:s0
4.在init.AAA.rc里面對應的service里面添加:
service AAA /vendor/bin/sh /vendor/etc/AAA_spec.sh
user root
group root
disabled
oneshot
seclabel u:r:carrier_switcher:s0
5.編譯並燒錄bootimage,若編譯報錯注意解決neverallow沖突
6.系統起來時如發現avc則逐一添加allow策略語句
補充:
在Android P上創建hal服務還需要在te文件中添加如下兩行:
hwbinder_use(hal_XXXX)
get_prop(hal_XXXX, hwservicemanager_prop)