NekoSakura/android_device_mediatek_sepolicy
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[ALPS03868216] wlan_assistant: allow to write nvram to driver

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Wlan driver has no permission to read nvram and wifi.cfg, wifi_fw.cfg,
so need to read that in wlan_assistant, and then write it to wlan
driver

MTK-Commit-Id: 1df286414a6fefe023069318bd4e7f14606d9fe1

Change-Id: I5e8adcfeb17b043fedec5bd2d65b25fc58f59bae
CR-Id: ALPS03868216
Feature: [Module]Wi-Fi HAL
This commit is contained in:
Xianpu Liang 2020-01-18 09:51:44 +08:00
parent 3b302c45bc
commit db3a89cdca
2 changed files with 42 additions and 0 deletions
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2
non_plat/file_contexts
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@ -540,6 +540,8 @@
/(system\/vendor|vendor)/bin/lbs_hidl_service u:object_r:lbs_hidl_service_exec:s0
/(system\/vendor|vendor)/bin/meta_tst u:object_r:meta_tst_exec:s0
/(system\/vendor|vendor)/bin/pre_meta u:object_r:pre_meta_exec:s0
/(system\/vendor|vendor)/bin/wlan_assistant u:object_r:wlan_assistant_exec:s0
/(system\/vendor|vendor)/bin/wmt_loader u:object_r:wmt_loader_exec:s0
/(system\/vendor|vendor)/bin/spm_loader u:object_r:spm_loader_exec:s0
/(system\/vendor|vendor)/bin/ccci_mdinit u:object_r:ccci_mdinit_exec:s0

40
non_plat/wlan_assistant.te Normal file
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@ -0,0 +1,40 @@
# ==============================================
# Policy File of /vendor/bin/wlan_assistant Executable File
# ==============================================
# Type Declaration
# ==============================================
type wlan_assistant_exec , exec_type, file_type, vendor_file_type;
type wlan_assistant ,domain;
# ==============================================
# MTK Policy Rule
# ==============================================
init_daemon_domain(wlan_assistant)
# Date : WK14.34
# Operation : Migration
# Purpose : for mtk debug mechanism. agpsd_data_file, mtk_agpsd are used
# to share wifi scan results with AGPS module. netlink_socket is used to
# listen events of wlan driver. udp_socket is used to do ioctl with wlan driver
# kernel-3.18 uses netlink_socket, but kernel-4.4 uses generic netlink_socket
allow wlan_assistant agpsd_data_file:sock_file write;
allow wlan_assistant mtk_agpsd:unix_dgram_socket sendto;
allow wlan_assistant agpsd_data_file:dir search;
### TBD, neverallowxperm on line 177 of system/sepolicy/public/domain.te
#allow wlan_assistant self:netlink_socket create_socket_perms;
allow wlan_assistant self:netlink_generic_socket create_socket_perms_no_ioctl;
allow wlan_assistant self:udp_socket { create ioctl };
# Date : WK18.17
# Operation : Migration
# Purpose : To allow wlan_assistant monitor /vendor/nvdata/APCFG/APRDEB,
# /storage/sdcard0, /vendor/firmware. Which can help to check if nvram,
# driver config or firmware config file are changed, if yes, will write it
# to wlan driver in time.
# allow wlan_assistant wifi_data_file:file { read getattr open };
# allow wlan_assistant wifi_data_file:dir { read search getattr open };
allow wlan_assistant nvdata_file:dir { search read getattr open };
allow wlan_assistant nvdata_file:file { read getattr open };
allow wlan_assistant sysfs:file { open read };
allow wlan_assistant wmtWifi_device:chr_file { read write getattr open };