From 210a805b46782a2a49bf5338732cf8c6abaf95de Mon Sep 17 00:00:00 2001
From: Tri Vo <trong@google.com>
Date: Tue, 10 Apr 2018 20:49:45 -0700
Subject: [PATCH] Sepolicy for rw mount point for vendors.
Bug: 64905218
Test: device boots with /mnt/vendor present and selinux label
mnt_vendor_file applied correctly.
Change-Id: Ib34e2859948019d237cf2fe8f71845ef2533ae27
---
private/compat/26.0/26.0.ignore.cil | 1 +
private/compat/27.0/27.0.ignore.cil | 1 +
private/file_contexts | 4 ++++
public/domain.te | 6 ++++++
public/file.te | 3 +++
5 files changed, 15 insertions(+)
diff --git a/private/compat/26.0/26.0.ignore.cil b/private/compat/26.0/26.0.ignore.cil
index 83c82180e..0faca6802 100644
--- a/private/compat/26.0/26.0.ignore.cil
+++ b/private/compat/26.0/26.0.ignore.cil
@@ -61,6 +61,7 @@
lowpan_service
mediaextractor_update_service
mediaprovider_tmpfs
+ mnt_vendor_file
netd_stable_secret_prop
network_watchlist_data_file
network_watchlist_service
diff --git a/private/compat/27.0/27.0.ignore.cil b/private/compat/27.0/27.0.ignore.cil
index 33777e283..a7e953bff 100644
--- a/private/compat/27.0/27.0.ignore.cil
+++ b/private/compat/27.0/27.0.ignore.cil
@@ -50,6 +50,7 @@
lowpan_prop
lowpan_service
mediaextractor_update_service
+ mnt_vendor_file
network_watchlist_data_file
network_watchlist_service
perfetto
diff --git a/private/file_contexts b/private/file_contexts
index c5169ff60..c2a8c74e1 100644
--- a/private/file_contexts
+++ b/private/file_contexts
@@ -526,3 +526,7 @@
/mnt/user(/.*)? u:object_r:mnt_user_file:s0
/mnt/runtime(/.*)? u:object_r:storage_file:s0
/storage(/.*)? u:object_r:storage_file:s0
+
+#############################
+# mount point for read-write vendor partitions
+/mnt/vendor(/.*)? u:object_r:mnt_vendor_file:s0
diff --git a/public/domain.te b/public/domain.te
index 1b7bbd4ab..d1fcbbce5 100644
--- a/public/domain.te
+++ b/public/domain.te
@@ -1355,3 +1355,9 @@ userdebug_or_eng(`
dontaudit domain proc_type:file create;
dontaudit domain sysfs_type:file create;
')
+
+# Platform must not have access to /mnt/vendor.
+neverallow {
+ coredomain
+ -init
+} mnt_vendor_file:dir *;
diff --git a/public/file.te b/public/file.te
index 156fce141..631e49ced 100644
--- a/public/file.te
+++ b/public/file.te
@@ -224,6 +224,9 @@ type storage_file, file_type;
type mnt_media_rw_stub_file, file_type;
type storage_stub_file, file_type;
+# Mount location for read-write vendor partitions.
+type mnt_vendor_file, file_type;
+
# /postinstall: Mount point used by update_engine to run postinstall.
type postinstall_mnt_dir, file_type;
# Files inside the /postinstall mountpoint are all labeled as postinstall_file.
--
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