e5d8a947bd
Give mount & chroot permissions to otapreopt_chroot related to postinstall. Add postinstall_dexopt for otapreopt in the B partition. Allow the things installd can do for dexopt. Give a few more rights to dex2oat for postinstall files. Allow postinstall files to call the system server. Bug: 25612095 Change-Id: If7407473d50c9414668ff6ef869c2aadd14264e7
57 lines
2.3 KiB
Text
57 lines
2.3 KiB
Text
# Domain for the otapreopt executable, running under postinstall_dexopt
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#
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# Note: otapreopt is a driver for dex2oat, and reuses parts of installd. As such,
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# this is derived and adapted from installd.te.
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type postinstall_dexopt, domain;
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# init_daemon_domain(otapreopt)
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allow postinstall_dexopt self:capability { chown dac_override fowner setgid setuid };
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allow postinstall_dexopt postinstall_file:dir getattr;
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allow postinstall_dexopt proc:file { getattr open read };
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allow postinstall_dexopt tmpfs:file read;
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# Note: /data/ota is created by init (see system/core/rootdir/init.rc) to avoid giving access
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# here and having to relabel the directory.
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# Read app data (APKs) as input to dex2oat.
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r_dir_file(postinstall_dexopt, apk_data_file)
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# Access to app oat directory.
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r_dir_file(postinstall_dexopt, dalvikcache_data_file)
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# Read profile data.
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allow postinstall_dexopt user_profile_data_file:dir { getattr search };
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allow postinstall_dexopt user_profile_data_file:file r_file_perms;
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# Write to /data/ota(/*). Create symlinks in /data/ota(/*)
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allow postinstall_dexopt ota_data_file:dir create_dir_perms;
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allow postinstall_dexopt ota_data_file:file create_file_perms;
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allow postinstall_dexopt ota_data_file:lnk_file create_file_perms;
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# Need to write .b files, which are dalvikcache_data_file, not ota_data_file.
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# TODO: See whether we can apply ota_data_file?
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allow postinstall_dexopt dalvikcache_data_file:dir rw_dir_perms;
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allow postinstall_dexopt dalvikcache_data_file:file create_file_perms;
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# Allow labeling of files under /data/app/com.example/oat/
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# TODO: Restrict to .b suffix?
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allow postinstall_dexopt dalvikcache_data_file:dir relabelto;
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allow postinstall_dexopt dalvikcache_data_file:file { relabelto link };
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allow postinstall_dexopt selinuxfs:dir r_dir_perms;
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# Check validity of SELinux context before use.
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selinux_check_context(postinstall_dexopt)
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selinux_check_access(postinstall_dexopt)
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# Run dex2oat/patchoat in its own sandbox.
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# We have to manually transition, as we don't have an entrypoint.
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domain_auto_trans(postinstall_dexopt, postinstall_file, dex2oat)
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# installd wants to know about our child.
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allow postinstall_dexopt installd:process sigchld;
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# Allow otapreopt to use file descriptors from otapreopt_chroot.
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# TODO: Probably we can actually close file descriptors...
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allow postinstall_dexopt otapreopt_chroot:fd use;
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