04ee9fb1b2
On cuttlefish devices, the resource loading code apparently maps the file rather
than just reading it.
Denial log:
viewcompiler: type=1400 audit(0.0:308): avc: denied { map } for
path="/data/app/android.startop.test-Z2JxVhtKPw2wx4o-nmo5NA==/base.apk"
dev="vdb" ino=139269 scontext=u:r:viewcompiler:s0
tcontext=u:object_r:apk_data_file:s0 tclass=file permissive=0
app=android.startop.test
Bug: 139018973
Change-Id: I4bbbc44abc3c4315137f76a0be737236cf10f4ef
25 lines
1 KiB
Text
25 lines
1 KiB
Text
# viewcompiler
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type viewcompiler, domain, coredomain, mlstrustedsubject;
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type viewcompiler_exec, system_file_type, exec_type, file_type;
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type viewcompiler_tmpfs, file_type;
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# Reading an APK opens a ZipArchive, which unpack to tmpfs.
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# Use tmpfs_domain() which will give tmpfs files created by viewcompiler their
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# own label, which differs from other labels created by other processes.
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# This allows to distinguish in policy files created by viewcompiler vs other
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# processes.
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tmpfs_domain(viewcompiler)
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allow viewcompiler installd:fd use;
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# Include write permission for app data files so viewcompiler can generate
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# compiled layout dex files
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allow viewcompiler app_data_file:file { getattr write };
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# Allow the view compiler to read resources from the apps APK.
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allow viewcompiler apk_data_file:file { read map };
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# priv-apps are moving to a world where they can only execute
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# signed code. Make sure viewcompiler never can write to privapp
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# directories to avoid introducing unsigned executable code
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neverallow viewcompiler privapp_data_file:file no_w_file_perms;
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