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recovery: allow relabelto unlabeled and other unlabeled rules

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The recovery script may ask to label a file with a label not
known to the currently loaded policy. Allow it.

Addresses the following denials:

  avc:  denied  { relabelto } for  pid=143 comm="update_binary" name="vdc" dev="mmcblk0p25" ino=212 scontext=u:r:recovery:s0 tcontext=u:object_r:unlabeled:s0 tclass=file
  avc:  denied  { setattr } for  pid=143 comm="update_binary" name="vdc" dev="mmcblk0p25" ino=212 scontext=u:r:recovery:s0 tcontext=u:object_r:unlabeled:s0 tclass=file

Change-Id: Iafcc7b0b3aaea5a272adb1264233978365648f94
This commit is contained in:
Nick Kralevich 2014-07-07 13:19:24 -07:00
parent c0088b8064
commit 558710cdcc
1 changed files with 5 additions and 0 deletions
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recovery.te
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@ -30,6 +30,11 @@ recovery_only(`
allow recovery system_file:{ file lnk_file } { create_file_perms relabelfrom relabelto };
allow recovery system_file:dir { create_dir_perms relabelfrom relabelto };
# We may be asked to set an SELinux label for a type not known to the
# currently loaded policy. Allow it.
allow recovery unlabeled:file { create_file_perms relabelfrom relabelto };
allow recovery unlabeled:dir { create_dir_perms relabelfrom relabelto };
# 0eb17d944704b3eb140bb9dded299d3be3aed77e in build/ added SELinux
# support to OTAs. However, that code has a bug. When an update occurs,
# some directories are inappropriately labeled as exec_type. This is