1095d6944c
[ 265.263738] type=1400 audit(17091747.819:4): avc: denied { write } for pid=132 comm="recovery" name="enable" dev="sysfs" ino=14405 scontext=u:r:recovery:s0 tcontext=u:object_r:sysfs:s0 tclass=file
[ 265.293154] type=1400 audit(17091747.849:5): avc: denied { execute } for pid=177 comm="recovery" name="recovery" dev="rootfs" ino=6376 scontext=u:r:recovery:s0 tcontext=u:object_r:rootfs:s0 tclass=file
[ 265.299479] type=1400 audit(17091747.859:6): avc: denied { setgid } for pid=177 comm="recovery" capability=6 scontext=u:r:recovery:s0 tcontext=u:r:recovery:s0 tclass=capability
[ 265.299511] type=1400 audit(17091747.859:7): avc: denied { read write } for pid=178 comm="recovery" name="android_adb" dev="tmpfs" ino=6739 scontext=u:r:recovery:s0 tcontext=u:object_r:adb_device:s0 tclass=chr_file
[ 265.299531] type=1400 audit(17091747.859:8): avc: denied { open } for pid=178 comm="recovery" name="android_adb" dev="tmpfs" ino=6739 scontext=u:r:recovery:s0 tcontext=u:object_r:adb_device:s0 tclass=chr_file
[ 265.299863] type=1400 audit(17091747.859:9): avc: denied { setuid } for pid=177 comm="recovery" capability=7 scontext=u:r:recovery:s0 tcontext=u:r:recovery:s0 tclass=capability
Change-Id: I024d5a797b86b9766f10bbb2a6a6462cafc9c26a
Signed-off-by: Stephen Smalley <sds@tycho.nsa.gov>
84 lines
3.2 KiB
Text
84 lines
3.2 KiB
Text
# recovery console (used in recovery init.rc for /sbin/recovery)
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# Declare the domain unconditionally so we can always reference it
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# in neverallow rules.
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type recovery, domain;
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# But the allow rules are only included in the recovery policy.
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# Otherwise recovery is only allowed the domain rules.
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recovery_only(`
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allow recovery rootfs:file { entrypoint execute };
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permissive_or_unconfined(recovery)
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allow recovery self:capability { chown dac_override fowner fsetid setfcap setuid setgid sys_admin sys_tty_config };
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# Set security contexts on files that are not known to the loaded policy.
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allow recovery self:capability2 mac_admin;
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# Mount filesystems.
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allow recovery rootfs:dir mounton;
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allow recovery fs_type:filesystem ~relabelto;
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allow recovery unlabeled:filesystem ~relabelto;
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allow recovery contextmount_type:filesystem relabelto;
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# Create and relabel files and directories under /system.
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allow recovery exec_type:{ file lnk_file } { create_file_perms relabelfrom relabelto };
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allow recovery system_file:{ file lnk_file } { create_file_perms relabelfrom relabelto };
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allow recovery system_file:dir { create_dir_perms relabelfrom relabelto };
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# 0eb17d944704b3eb140bb9dded299d3be3aed77e in build/ added SELinux
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# support to OTAs. However, that code has a bug. When an update occurs,
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# some directories are inappropriately labeled as exec_type. This is
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# only transient, and subsequent steps in the OTA script correct this
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# mistake.
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# Allow this behavior for now until we can fix the underlying bug.
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# b/15575013
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allow recovery exec_type:dir { create_dir_perms relabelfrom relabelto };
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auditallow recovery exec_type:dir { create_dir_perms relabelfrom relabelto };
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# Write to /proc/sys/vm/drop_caches
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# TODO: create more specific label?
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allow recovery proc:file w_file_perms;
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# Write to /sys/class/android_usb/android0/enable.
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# TODO: create more specific label?
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allow recovery sysfs:file w_file_perms;
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# Access /dev/android_adb.
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allow recovery adb_device:chr_file rw_file_perms;
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# Required to e.g. wipe userdata/cache.
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allow recovery device:dir r_dir_perms;
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allow recovery block_device:dir r_dir_perms;
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allow recovery dev_type:blk_file rw_file_perms;
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# GUI
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allow recovery self:process execmem;
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allow recovery ashmem_device:chr_file execute;
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allow recovery graphics_device:chr_file rw_file_perms;
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allow recovery graphics_device:dir r_dir_perms;
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allow recovery input_device:dir r_dir_perms;
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allow recovery input_device:chr_file r_file_perms;
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allow recovery tty_device:chr_file rw_file_perms;
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# Create /tmp/recovery.log and execute /tmp/update_binary.
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allow recovery tmpfs:file { create_file_perms x_file_perms };
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allow recovery tmpfs:dir create_dir_perms;
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# Manage files on /cache
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allow recovery cache_file:dir create_dir_perms;
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allow recovery cache_file:file create_file_perms;
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# Reboot the device
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allow recovery powerctl_prop:property_service set;
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unix_socket_connect(recovery, property, init)
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# Use setfscreatecon() to label files for OTA updates.
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allow recovery self:process setfscreate;
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wakelock_use(recovery)
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# This line seems suspect, as it should not really need to
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# set scheduling parameters for a kernel domain task.
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allow recovery kernel:process setsched;
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')
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