509186dea5
Addresses denials such as:
avc: denied { search } for pid=143 comm="e2fsck" name="block" dev="tmpfs" ino=5987 scontext=u:r:fsck:s0 tcontext=u:object_r:block_device:s0 tclass=dir
Change-Id: Ieb72fc5e28146530c2f3b235ce74f2f397e49c56
Signed-off-by: Stephen Smalley <sds@tycho.nsa.gov>
22 lines
777 B
Text
22 lines
777 B
Text
# e2fsck or any other fsck program run by init.
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type fsck, domain;
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type fsck_exec, exec_type, file_type;
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init_daemon_domain(fsck)
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# /dev/__null__ created by init prior to policy load,
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# open fd inherited by fsck.
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allow fsck tmpfs:chr_file { read write ioctl };
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# Inherit and use pty created by android_fork_execvp_ext().
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allow fsck devpts:chr_file { read write ioctl getattr };
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# Run e2fsck on block devices.
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allow fsck block_device:dir search;
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allow fsck userdata_block_device:blk_file rw_file_perms;
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allow fsck cache_block_device:blk_file rw_file_perms;
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# Only allow entry from init via the e2fsck binary.
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neverallow { domain -init } fsck:process transition;
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neverallow domain fsck:process dyntransition;
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neverallow fsck { file_type fs_type -fsck_exec}:file entrypoint;
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