platform_system_sepolicy/private/tombstoned.te
Inseob Kim 75806ef3c5 Minimize public policy
Ideally, public should only contain APIs (types / attributes) for
vendor. The other statements like allow/neverallow/typeattributes are
regarded as implementation detail for platform and should be in private.

Bug: 232023812
Test: m selinux_policy
Test: diff <(git diff --staged | grep "^-" | cut -b2- | sort) \
           <(git diff --staged | grep "^+" | cut -b2- | sort)
Test: remove comments on plat_sepolicy.cil, replace base_typeattr_*
      to base_typeattr and then compare old and new plat_sepolicy.cil
Change-Id: I5e7d2da4465ab0216de6bacdf03077d37f6ffe12
2024-03-28 00:33:46 +00:00

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typeattribute tombstoned coredomain;
init_daemon_domain(tombstoned)
get_prop(tombstoned, tombstone_config_prop)
# Write to arbitrary pipes given to us.
allow tombstoned domain:fd use;
allow tombstoned domain:fifo_file write;
allow tombstoned domain:dir r_dir_perms;
allow tombstoned domain:file r_file_perms;
allow tombstoned tombstone_data_file:dir rw_dir_perms;
allow tombstoned tombstone_data_file:file { create_file_perms link };
# Changes for the new stack dumping mechanism. Each trace goes into a
# separate file, and these files are managed by tombstoned.
allow tombstoned anr_data_file:dir rw_dir_perms;
allow tombstoned anr_data_file:file { append create getattr open link unlink };
###
### Neverallow rules
###
neverallow {
domain
-init
-vendor_init
-dumpstate
-tombstoned
} tombstone_config_prop:file no_rw_file_perms;