Yifan Hong | 18ade86 | 2019-03-14 15:45:03 -0700 | [diff] [blame] | 1 | type lpdumpd, domain, coredomain; |
| 2 | type lpdumpd_exec, system_file_type, exec_type, file_type; |
| 3 | |
| 4 | init_daemon_domain(lpdumpd) |
| 5 | |
| 6 | # Allow lpdumpd to register itself as a service. |
| 7 | binder_use(lpdumpd) |
| 8 | add_service(lpdumpd, lpdump_service) |
| 9 | |
| 10 | # Allow lpdumpd to find the super partition block device. |
| 11 | allow lpdumpd block_device:dir r_dir_perms; |
| 12 | |
Yifan Hong | ab85caa | 2019-03-22 13:55:13 -0700 | [diff] [blame] | 13 | # Allow lpdumpd to read super partition metadata. |
| 14 | allow lpdumpd super_block_device_type:blk_file r_file_perms; |
Yifan Hong | 18ade86 | 2019-03-14 15:45:03 -0700 | [diff] [blame] | 15 | |
| 16 | # Allow lpdumpd to read fstab. |
| 17 | allow lpdumpd sysfs_dt_firmware_android:dir r_dir_perms; |
| 18 | allow lpdumpd sysfs_dt_firmware_android:file r_file_perms; |
Yi-Yo Chiang | 5854941 | 2021-03-22 13:46:12 +0800 | [diff] [blame] | 19 | read_fstab(lpdumpd) |
Yifan Hong | 18ade86 | 2019-03-14 15:45:03 -0700 | [diff] [blame] | 20 | |
David Anderson | e6ad1f2 | 2023-07-14 09:07:18 -0700 | [diff] [blame] | 21 | # Allow to get A/B slot suffix from device tree or kernel cmdline. |
| 22 | r_dir_file(lpdumpd, sysfs_dt_firmware_android); |
| 23 | allow lpdumpd proc_cmdline:file r_file_perms; |
| 24 | |
| 25 | # Allow reading Virtual A/B status information. |
| 26 | get_prop(lpdumpd, virtual_ab_prop) |
| 27 | allow lpdumpd metadata_file:dir search; |
| 28 | allow lpdumpd ota_metadata_file:dir { r_dir_perms lock }; |
| 29 | allow lpdumpd ota_metadata_file:file r_file_perms; |
| 30 | |
Yifan Hong | 18ade86 | 2019-03-14 15:45:03 -0700 | [diff] [blame] | 31 | ### Neverallow rules |
| 32 | |
| 33 | # Disallow other domains to get lpdump_service and call lpdumpd. |
| 34 | neverallow { |
| 35 | domain |
| 36 | -dumpstate |
| 37 | -lpdumpd |
| 38 | -shell |
| 39 | } lpdump_service:service_manager find; |
| 40 | |
| 41 | neverallow { |
| 42 | domain |
| 43 | -dumpstate |
| 44 | -lpdumpd |
| 45 | -shell |
Jon Spivack | 4b9114a | 2019-11-26 17:34:29 -0800 | [diff] [blame] | 46 | -servicemanager |
Yifan Hong | 18ade86 | 2019-03-14 15:45:03 -0700 | [diff] [blame] | 47 | } lpdumpd:binder call; |