init: Add vendor-specific initialization hooks.

Allow optional vendor-specific initializations
within init.  This can be used for runtime
initialization setup that init rc scripts do
not support.

Change-Id: I7623a0d59b18f9ec8e3623958e2f7ccd72b877bf

5 files changed, 109 insertions, 0 deletions

diff --git a/init/Android.bp b/init/Android.bp
index 7eeafa24b..69f8815ed 100644
--- a/init/Android.bp
+++ b/init/Android.bp
@@ -89,6 +89,14 @@ init_host_sources = [
     "host_init_verifier.cpp",
 ]
 
+cc_library_static {
+    name: "vendor_init",
+    recovery_available: true,
+    srcs: [
+        "vendor_init.cpp",
+    ],
+}
+
 cc_defaults {
     name: "init_defaults",
     sanitize: {
@@ -182,6 +190,7 @@ cc_library_static {
     defaults: [
         "init_defaults",
         "selinux_policy_version",
+        "vendor_init_defaults",
     ],
     srcs: init_common_sources + init_device_sources,
     generated_sources: [
diff --git a/init/NOTICE b/init/NOTICE
index c5b1efa7a..383d0f541 100644
--- a/init/NOTICE
+++ b/init/NOTICE
@@ -188,3 +188,29 @@
 
    END OF TERMS AND CONDITIONS
 
+Copyright (c) 2013, The Linux Foundation. All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are
+met:
+    * Redistributions of source code must retain the above copyright
+      notice, this list of conditions and the following disclaimer.
+    * Redistributions in binary form must reproduce the above
+      copyright notice, this list of conditions and the following
+      disclaimer in the documentation and/or other materials provided
+      with the distribution.
+    * Neither the name of The Linux Foundation nor the names of its
+      contributors may be used to endorse or promote products derived
+      from this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
+WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
+ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
+BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
+BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
+OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
+IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
diff --git a/init/property_service.cpp b/init/property_service.cpp
index 600f27919..3f71af71b 100644
--- a/init/property_service.cpp
+++ b/init/property_service.cpp
@@ -73,6 +73,7 @@
 #include "subcontext.h"
 #include "system/core/init/property_service.pb.h"
 #include "util.h"
+#include "vendor_init.h"
 
 using namespace std::literals;
 
@@ -1200,6 +1201,9 @@ void PropertyLoadBootDefaults() {
         }
     }
 
+    // Update with vendor-specific property runtime overrides
+    vendor_load_properties();
+
     property_initialize_ro_product_props();
     property_initialize_build_id();
     property_derive_build_props();
diff --git a/init/vendor_init.cpp b/init/vendor_init.cpp
new file mode 100644
index 000000000..d3fd5ffe2
--- /dev/null
+++ b/init/vendor_init.cpp
@@ -0,0 +1,37 @@
+/*
+Copyright (c) 2013, The Linux Foundation. All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are
+met:
+    * Redistributions of source code must retain the above copyright
+      notice, this list of conditions and the following disclaimer.
+    * Redistributions in binary form must reproduce the above
+      copyright notice, this list of conditions and the following
+      disclaimer in the documentation and/or other materials provided
+      with the distribution.
+    * Neither the name of The Linux Foundation nor the names of its
+      contributors may be used to endorse or promote products derived
+      from this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
+WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
+ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
+BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
+BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
+OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
+IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "vendor_init.h"
+
+/* init vendor override stubs */
+
+__attribute__ ((weak))
+void vendor_load_properties()
+{
+}
diff --git a/init/vendor_init.h b/init/vendor_init.h
new file mode 100644
index 000000000..9afb449be
--- /dev/null
+++ b/init/vendor_init.h
@@ -0,0 +1,33 @@
+/*
+Copyright (c) 2013, The Linux Foundation. All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are
+met:
+    * Redistributions of source code must retain the above copyright
+      notice, this list of conditions and the following disclaimer.
+    * Redistributions in binary form must reproduce the above
+      copyright notice, this list of conditions and the following
+      disclaimer in the documentation and/or other materials provided
+      with the distribution.
+    * Neither the name of The Linux Foundation nor the names of its
+      contributors may be used to endorse or promote products derived
+      from this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
+WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
+ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
+BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
+BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
+OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
+IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef __INIT_VENDOR__H__
+#define __INIT_VENDOR__H__
+extern void vendor_load_properties(void);
+#endif /* __INIT_VENDOR__H__ */