From 2c11d61122273443086a02b0b0fda9638e677bfc Mon Sep 17 00:00:00 2001
From: dianlujitao <dianlujitao@lineageos.org>
Date: Sun, 20 Mar 2022 19:17:05 -0300
Subject: veux: sepolicy: Make fastrpc_shell_3 publicly available

 * Used by GCAM for DSP-accelerated HDR processing
 * Arguably we should label /vendor/dsp/cdsp/fastrpc_shell_3 to
   same_process_hal_file like Pixels, but the partition is prebuilt thus
   we're unable to relabel it.
 * Copy the file to writable tmpfs, setup attributes and bind mount back
   to workaround the limitation.

[ghostrider-reborn]:
Allow adsp/cdsprpcd and neuralnetworks HAL to access fastrpc_shell_3

[kras edit:
 1. rename some contexts as per qva/kona
 2. extend to allow camera HAL and VPP service to access it as well]

Co-authored-by: Adithya R <gh0strider.2k18.reborn@gmail.com>
---
 sepolicy/vendor/adsprpcd.te                   | 3 +++
 sepolicy/vendor/app.te                        | 3 +++
 sepolicy/vendor/cdsprpcd.te                   | 1 +
 sepolicy/vendor/file_contexts                 | 5 +++++
 sepolicy/vendor/hal_camera_default.te         | 2 ++
 sepolicy/vendor/hal_neuralnetworks_default.te | 1 +
 sepolicy/vendor/init.te                       | 1 +
 sepolicy/vendor/vppservice.te                 | 1 +
 8 files changed, 17 insertions(+)
 create mode 100644 sepolicy/vendor/cdsprpcd.te
 create mode 100644 sepolicy/vendor/hal_neuralnetworks_default.te
 create mode 100644 sepolicy/vendor/init.te
 create mode 100644 sepolicy/vendor/vppservice.te

(limited to 'sepolicy/vendor')

diff --git a/sepolicy/vendor/adsprpcd.te b/sepolicy/vendor/adsprpcd.te
index 58fe3e7..d5efe9f 100644
--- a/sepolicy/vendor/adsprpcd.te
+++ b/sepolicy/vendor/adsprpcd.te
@@ -1 +1,4 @@
+type public_adsprpcd_file, file_type;
+
+r_dir_file(vendor_adsprpcd, public_adsprpcd_file)
 r_dir_file(vendor_adsprpcd, vendor_sysfs_graphics)
diff --git a/sepolicy/vendor/app.te b/sepolicy/vendor/app.te
index 60325ab..b70be61 100644
--- a/sepolicy/vendor/app.te
+++ b/sepolicy/vendor/app.te
@@ -1 +1,4 @@
+allow { appdomain -isolated_app } adsprpcd_file:dir r_dir_perms;
+allow { appdomain -isolated_app } public_adsprpcd_file:file r_file_perms;
+
 get_prop({ appdomain -isolated_app }, vendor_mlipay_prop)
diff --git a/sepolicy/vendor/cdsprpcd.te b/sepolicy/vendor/cdsprpcd.te
new file mode 100644
index 0000000..36612a5
--- /dev/null
+++ b/sepolicy/vendor/cdsprpcd.te
@@ -0,0 +1 @@
+r_dir_file(vendor_cdsprpcd, public_adsprpcd_file)
\ No newline at end of file
diff --git a/sepolicy/vendor/file_contexts b/sepolicy/vendor/file_contexts
index 7afaa3a..7475fab 100644
--- a/sepolicy/vendor/file_contexts
+++ b/sepolicy/vendor/file_contexts
@@ -15,6 +15,11 @@
 # Camera
 /mnt/vendor/persist/camera(/.*)?							u:object_r:camera_persist_file:s0
 
+# Hexagon DSP-side executable needed for Halide operation
+# This is labeled as public_adsprpcd_file as it needs to be read by apps
+# (e.g. Google Camera App)
+/mnt/vendor/dsp/fastrpc_shell_3                                         u:object_r:public_adsprpcd_file:s0
+
 # Fingerprint
 /dev/goodix_fp										u:object_r:vendor_fingerprint_device:s0
 /dev/silead_fp										u:object_r:vendor_fingerprint_device:s0
diff --git a/sepolicy/vendor/hal_camera_default.te b/sepolicy/vendor/hal_camera_default.te
index d97b6ee..cbca59c 100644
--- a/sepolicy/vendor/hal_camera_default.te
+++ b/sepolicy/vendor/hal_camera_default.te
@@ -1,2 +1,4 @@
 r_dir_file(hal_camera_default, camera_persist_file)
 set_prop(hal_camera_default, vendor_camera_sensor_prop)
+
+allow hal_camera_default public_adsprpcd_file:file r_file_perms;
diff --git a/sepolicy/vendor/hal_neuralnetworks_default.te b/sepolicy/vendor/hal_neuralnetworks_default.te
new file mode 100644
index 0000000..97582e9
--- /dev/null
+++ b/sepolicy/vendor/hal_neuralnetworks_default.te
@@ -0,0 +1 @@
+r_dir_file(vendor_hal_neuralnetworks_default, public_adsprpcd_file)
\ No newline at end of file
diff --git a/sepolicy/vendor/init.te b/sepolicy/vendor/init.te
new file mode 100644
index 0000000..5be36d2
--- /dev/null
+++ b/sepolicy/vendor/init.te
@@ -0,0 +1 @@
+allow init adsprpcd_file:file mounton;
\ No newline at end of file
diff --git a/sepolicy/vendor/vppservice.te b/sepolicy/vendor/vppservice.te
new file mode 100644
index 0000000..1870236
--- /dev/null
+++ b/sepolicy/vendor/vppservice.te
@@ -0,0 +1 @@
+r_dir_file(vendor_vppservice, public_adsprpcd_file)
\ No newline at end of file
-- 
cgit v1.2.3