sepolicy/wcnss_filter.te


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# Policy for /vendor/bin/wcnss_filter
type wcnss_filter, domain;
type wcnss_filter_exec, exec_type, vendor_file_type, file_type;

init_daemon_domain(wcnss_filter)

# talk to /dev/ttyHS0
allow wcnss_filter hci_attach_dev:chr_file rw_file_perms;

set_prop(wcnss_filter, wc_prop)

# write to proc/sysrq-trigger
allow wcnss_filter proc_sysrq:file w_file_perms;

# access to /dev/diag on debug builds
userdebug_or_eng(`
  allow wcnss_filter diag_device:chr_file rw_file_perms;
  allow wcnss_filter sysfs_timestamp_switch:file r_file_perms;
  r_dir_file(wcnss_filter, sysfs_diag)
  allow wcnss_filter ramdump_vendor_data_file:dir w_dir_perms;
  allow wcnss_filter ramdump_vendor_data_file:file { create w_file_perms };
  r_dir_file(wcnss_filter, debugfs_ipc)
  set_prop(wcnss_filter, vendor_ssr_prop)
')
dontaudit wcnss_filter diag_device:chr_file rw_file_perms;

# Allow reading Bluetooth-related system properties
get_prop(wcnss_filter, bluetooth_prop)

# allow wcnss to set threads to RT priority
allow wcnss_filter self:capability sys_nice;