| Tri Vo | bc8dc3a | 2019-05-26 13:17:08 -0700 | [diff] [blame^] | 1 | # The tzdatacheck command run by init. |
| 2 | type tzdatacheck, domain; |
| 3 | type tzdatacheck_exec, system_file_type, exec_type, file_type; |
| 4 | |
| 5 | allow tzdatacheck zoneinfo_data_file:dir create_dir_perms; |
| 6 | allow tzdatacheck zoneinfo_data_file:file unlink; |
| 7 | |
| 8 | # Below are strong assertion that only init, system_server and tzdatacheck |
| 9 | # can modify the /data time zone rules directories. This is to make it very |
| 10 | # clear that only these domains should modify the actual time zone rules data. |
| 11 | # The tzdatacheck binary itself may be executed by shell for tests but it must |
| 12 | # not be able to modify the real rules. |
| 13 | # If other users / binaries could modify time zone rules on device this might |
| 14 | # have negative implications for users (who may get incorrect local times) |
| 15 | # or break assumptions made / invalidate data held by the components actually |
| 16 | # responsible for updating time zone rules. |
| 17 | neverallow { domain -system_server -init -tzdatacheck } zoneinfo_data_file:file no_w_file_perms; |
| 18 | neverallow { domain -system_server -init -tzdatacheck } zoneinfo_data_file:dir no_w_dir_perms; |