modem_svc: add modem_svc_sit to solve sepolicy conflicts arising from different device versions

Add modem_svc_sit to gs-common. modem_svc_sit will support devices from gs101 to zuma_pro. The shared_modem_platform will be updated to support devices after zumapro (not include).

Bug: 372400955

Flag: NONE local testing only
Change-Id: I0bcc9baf69045327e6fcca92ab8003e303db2649

modem/modem_svc_sit/compatibility_matrix.xml

@@ -0,0 +1,11 @@
+<compatibility-matrix version="1.0" type="framework">
+    <!-- Optional since older devices will not register any services. -->
+    <hal format="aidl" optional="true">
+        <name>com.google.pixel.shared_modem_platform</name>
+        <version>3</version>
+        <interface>
+            <name>ISharedModemPlatform</name>
+            <instance>default</instance>
+        </interface>
+    </hal>
+</compatibility-matrix>

modem/modem_svc_sit/sepolicy/attributes

@@ -0,0 +1 @@
+hal_attribute(shared_modem_platform)

modem/modem_svc_sit/sepolicy/file_contexts

@@ -0,0 +1,2 @@
+# modem_svc_sit
+/vendor/bin/shared_modem_platform   u:object_r:modem_svc_sit_exec:s0

modem/modem_svc_sit/sepolicy/hal_shared_modem_platform.te

@@ -0,0 +1,8 @@
+# Allow binder connection from client to server
+binder_call(hal_shared_modem_platform_client, hal_shared_modem_platform_server)
+
+# Allow client to find the service, server to register the service
+hal_attribute_service(hal_shared_modem_platform, hal_shared_modem_platform_service)
+
+# Allow binder communication from server to service_manager
+binder_use(hal_shared_modem_platform_server)

modem/modem_svc_sit/sepolicy/service.te

@@ -0,0 +1,2 @@
+# define hal_shared_modem_platform_service
+type hal_shared_modem_platform_service, hal_service_type, service_manager_type;

modem/modem_svc_sit/sepolicy/service_contexts

@@ -0,0 +1,2 @@
+# Bind Shared Modem Platform AIDL service name to the SELinux type.
+com.google.pixel.shared_modem_platform.ISharedModemPlatform/default u:object_r:hal_shared_modem_platform_service:s0

modem/modem_svc_sit/shared_modem_platform.mk

@@ -0,0 +1,14 @@
+# This file is not included in `modem.mk` since this is included at the
+# beginning of each `device.mk` file, and so will be called before
+# `SHARED_MODEM_PLATFORM_VENDOR` is defined later in the file.
+# This file supoorts Whitechapel(gs101), Whitechapel Pro(gs201), Zuma, Zuma Pro.
+# This file doesn't support devices which AP is after Zuma Pro.
+# For device after Zuma Pro please use gs-common/modem/shared_modem_platform/shared_modem_platform.mk
+SOONG_CONFIG_NAMESPACES += shared_modem_platform
+SOONG_CONFIG_shared_modem_platform += \
+       vendor
+SOONG_CONFIG_shared_modem_platform_vendor := $(SHARED_MODEM_PLATFORM_VENDOR)
+
+PRODUCT_PACKAGES += shared_modem_platform
+DEVICE_PRODUCT_COMPATIBILITY_MATRIX_FILE += device/google/gs-common/modem/modem_svc_sit/compatibility_matrix.xml
+BOARD_SEPOLICY_DIRS += device/google/gs-common/modem/modem_svc_sit/sepolicy

modem/shared_modem_platform/sepolicy/file_contexts

@@ -1,2 +1,2 @@
-# modem_svc_sit
-/vendor/bin/shared_modem_platform   u:object_r:modem_svc_sit_exec:s0
+# shared_modem_platform
+/vendor/bin/shared_modem_platform   u:object_r:shared_modem_platform_exec:s0

modem/shared_modem_platform/sepolicy/shared_modem_platform.te

@@ -0,0 +1,2 @@
+# Shared modem platform will register the default instance of the AIDL ISharedModemPlatform hal.
+hal_server_domain(shared_modem_platform, hal_shared_modem_platform)

modem/shared_modem_platform/shared_modem_platform.mk

@@ -1,6 +1,8 @@
 # This file is not included in `modem.mk` since this is included at the
 # beginning of each `device.mk` file, and so will be called before
 # `SHARED_MODEM_PLATFORM_VENDOR` is defined later in the file.
+# This file supports support devices which AP is after zumapro(not include).
+# For device before zumapro(include) please use gs-common/modem/modem_svc_sit/shared_modem_platform.mk
 SOONG_CONFIG_NAMESPACES += shared_modem_platform
 SOONG_CONFIG_shared_modem_platform += \
        vendor