| ### |
| ### Untrusted_app_25 |
| ### |
| ### This file defines the rules for untrusted apps running with |
| ### targetSdkVersion <= 25. |
| ### |
| ### See public/untrusted_app.te for more information about which apps are |
| ### placed in this selinux domain. |
| ### |
| |
| typeattribute untrusted_app_25 coredomain; |
| |
| app_domain(untrusted_app_25) |
| untrusted_app_domain(untrusted_app_25) |
| net_domain(untrusted_app_25) |
| bluetooth_domain(untrusted_app_25) |
| |
| # b/35917228 - /proc/misc access |
| # This will go away in a future Android release |
| allow untrusted_app_25 proc_misc:file r_file_perms; |
| |
| # Access to /proc/tty/drivers, to allow apps to determine if they |
| # are running in an emulated environment. |
| # b/33214085 b/33814662 b/33791054 b/33211769 |
| # https://github.com/strazzere/anti-emulator/blob/master/AntiEmulator/src/diff/strazzere/anti/emulator/FindEmulator.java |
| # This will go away in a future Android release |
| allow untrusted_app_25 proc_tty_drivers:file r_file_perms; |
| |
| # Text relocation support for API < 23. This is now disallowed for targetSdkVersion>=Q. |
| # https://android.googlesource.com/platform/bionic/+/master/android-changes-for-ndk-developers.md#text-relocations-enforced-for-api-level-23 |
| allow untrusted_app_25 { apk_data_file app_data_file asec_public_file }:file execmod; |
| |
| # The ability to call exec() on files in the apps home directories |
| # for targetApi<=25. This is also allowed for targetAPIs 26, 27, |
| # and 28 in untrusted_app_27.te. |
| allow untrusted_app_25 app_data_file:file execute_no_trans; |
| auditallow untrusted_app_25 app_data_file:file { execute execute_no_trans }; |
| |
| # The ability to invoke dex2oat. Historically required by ART, now only |
| # allowed for targetApi<=28 for compat reasons. |
| allow untrusted_app_25 dex2oat_exec:file rx_file_perms; |
| userdebug_or_eng(`auditallow untrusted_app_25 dex2oat_exec:file rx_file_perms;') |
| |
| # The ability to talk to /dev/ashmem directly. targetApi>=29 must use |
| # ASharedMemory instead. |
| allow untrusted_app_25 ashmem_device:chr_file rw_file_perms; |
| auditallow untrusted_app_25 ashmem_device:chr_file open; |
| |
| # Read /mnt/sdcard symlink. |
| allow untrusted_app_25 mnt_sdcard_file:lnk_file r_file_perms; |
| |
| # allow sending RTM_GETNEIGH{TBL} messages. |
| allow untrusted_app_25 self:netlink_route_socket nlmsg_getneigh; |
| auditallow untrusted_app_25 self:netlink_route_socket nlmsg_getneigh; |
| |
| # Connect to mdnsd via mdnsd socket. |
| unix_socket_connect(untrusted_app_25, mdnsd, mdnsd) |
| userdebug_or_eng(` |
| auditallow untrusted_app_25 mdnsd_socket:sock_file write; |
| auditallow untrusted_app_25 mdnsd:unix_stream_socket connectto; |
| ') |
| |
| # Allow calling inotify on APKs for backwards compatibility. This is disallowed |
| # for targetSdkVersion>=34 to remove a sidechannel. |
| allow untrusted_app_25 apk_data_file:dir { watch watch_reads }; |
| allow untrusted_app_25 apk_data_file:file { watch watch_reads }; |
| userdebug_or_eng(` |
| auditallow untrusted_app_25 apk_data_file:dir { watch watch_reads }; |
| auditallow untrusted_app_25 apk_data_file:file { watch watch_reads }; |
| ') |