diff --git a/COPYING b/COPYING
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+++ b/COPYING
@@ -0,0 +1,674 @@
+                    GNU GENERAL PUBLIC LICENSE
+                       Version 3, 29 June 2007
+
+ Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
+                            Preamble
+
+  The GNU General Public License is a free, copyleft license for
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+  16. Limitation of Liability.
+
+  IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
+WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
+THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
+GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
+USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
+DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
+PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
+EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
+SUCH DAMAGES.
+
+  17. Interpretation of Sections 15 and 16.
+
+  If the disclaimer of warranty and limitation of liability provided
+above cannot be given local legal effect according to their terms,
+reviewing courts shall apply local law that most closely approximates
+an absolute waiver of all civil liability in connection with the
+Program, unless a warranty or assumption of liability accompanies a
+copy of the Program in return for a fee.
+
+                     END OF TERMS AND CONDITIONS
+
+            How to Apply These Terms to Your New Programs
+
+  If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
+
+  To do so, attach the following notices to the program.  It is safest
+to attach them to the start of each source file to most effectively
+state the exclusion of warranty; and each file should have at least
+the "copyright" line and a pointer to where the full notice is found.
+
+    <one line to give the program's name and a brief idea of what it does.>
+    Copyright (C) <year>  <name of author>
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+Also add information on how to contact you by electronic and paper mail.
+
+  If the program does terminal interaction, make it output a short
+notice like this when it starts in an interactive mode:
+
+    <program>  Copyright (C) <year>  <name of author>
+    This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+    This is free software, and you are welcome to redistribute it
+    under certain conditions; type `show c' for details.
+
+The hypothetical commands `show w' and `show c' should show the appropriate
+parts of the General Public License.  Of course, your program's commands
+might be different; for a GUI interface, you would use an "about box".
+
+  You should also get your employer (if you work as a programmer) or school,
+if any, to sign a "copyright disclaimer" for the program, if necessary.
+For more information on this, and how to apply and follow the GNU GPL, see
+<http://www.gnu.org/licenses/>.
+
+  The GNU General Public License does not permit incorporating your program
+into proprietary programs.  If your program is a subroutine library, you
+may consider it more useful to permit linking proprietary applications with
+the library.  If this is what you want to do, use the GNU Lesser General
+Public License instead of this License.  But first, please read
+<http://www.gnu.org/philosophy/why-not-lgpl.html>.
diff --git a/Makefile b/Makefile
new file mode 100644
index 0000000..ac5a351
--- /dev/null
+++ b/Makefile
@@ -0,0 +1,250 @@
+# Copyright (C) 2018 Open Networking Foundation
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+########################################################################
+##
+##
+## 				Config
+##
+##
+DEVICE = asfvolt16
+#
+# Three vendor proprietary source files are required to build BAL.
+# SW-BCM68620_<VER>.zip - Broadcom BAL source and Maple SDK.
+# sdk-all-<SDK_VER>.tar.gz - Broadcom Qumran SDK.
+# ACCTON_BAL_<BAL_VER>-<ACCTON_VER>.patch - Accton/Edgecore's patch.
+BAL_MAJOR_VER = 02.04
+BAL_VER = 2.4.3.6
+SDK_VER = 6.5.7
+ACCTON_VER = 201710131639
+#
+# Version of Open Network Linux (ONL).
+ONL_KERN_VER_MAJOR = 3.7
+ONL_KERN_VER_MINOR = 10
+#
+# Build directory
+BUILD_DIR = build
+
+########################################################################
+##
+##
+## 				Check
+##
+##
+HOST_SYSTEM = $(shell uname | cut -f 1 -d_)
+SYSTEM ?= $(HOST_SYSTEM)
+CXX = g++
+CPPFLAGS += `pkg-config --cflags protobuf grpc`
+CXXFLAGS += -std=c++11 -fpermissive -Wno-literal-suffix
+ifeq ($(SYSTEM),Darwin)
+LDFLAGS += -L/usr/local/lib `pkg-config --libs protobuf grpc++ grpc`\
+           -lgrpc++_reflection\
+           -ldl
+else
+LDFLAGS += -L/usr/local/lib `pkg-config --libs protobuf grpc++ grpc`\
+           -Wl,--no-as-needed -lgrpc++_reflection -Wl,--as-needed\
+           -ldl
+endif
+PROTOC = protoc
+GRPC_CPP_PLUGIN = grpc_cpp_plugin
+GRPC_CPP_PLUGIN_PATH ?= `which $(GRPC_CPP_PLUGIN)`
+GRPC_CPP_VER ?= `command curl -L https://grpc.io/release`
+PROTOC_CMD = which $(PROTOC)
+PROTOC_CHECK_CMD = $(PROTOC) --version | grep -q libprotoc.3
+PLUGIN_CHECK_CMD = which $(GRPC_CPP_PLUGIN)
+HAS_PROTOC = $(shell $(PROTOC_CMD) > /dev/null && echo true || echo false)
+ifeq ($(HAS_PROTOC),true)
+HAS_VALID_PROTOC = $(shell $(PROTOC_CHECK_CMD) 2> /dev/null && echo true || echo false)
+endif
+HAS_PLUGIN = $(shell $(PLUGIN_CHECK_CMD) > /dev/null && echo true || echo false)
+check:
+	sudo apt-get -q -y install git pkg-config build-essential autoconf libtool libgflags-dev libgtest-dev clang libc++-dev
+ifneq ($(HAS_VALID_PROTOC),true)
+	mkdir -p /tmp/$(PROTOC_NAME)
+	wget -P /tmp/$(PROTOC_NAME) $(PROTOC_DOWNLOAD_URL)/v$(PROTOC_VERSION)/$(PROTOC_NAME).zip
+	unzip -o /tmp/$(PROTOC_NAME)/$(PROTOC_NAME) -d /tmp/$(PROTOC_NAME)
+	mkdir -p $(PWD)/bin
+	cp -f /tmp/$(PROTOC_NAME)/bin/protoc $(PWD)/bin/.
+	mkdir -p $(PWD)/include
+	cp -rf /tmp/$(PROTOC_NAME)/include/* $(PWD)/include/.
+	rm -rf /tmp/$(PROTOC_NAME)
+endif
+ifneq ($(HAS_PLUGIN),true)
+	rm -rf /tmp/grpc
+	git clone -b $(GRPC_CPP_VER) https://github.com/grpc/grpc /tmp/grpc
+	cd /tmp/grpc && git submodule update --init
+	make -C /tmp/grpc
+	sudo make -C /tmp/grpc install
+	make -C /tmp/grpc/third_party/protobuf
+	sudo make -C /tmp/grpc/third_party/protobuf install
+	rm -rf /tmp/grpc
+endif
+
+########################################################################
+##
+##
+## 				ONL
+##
+##
+ONL_KERN_VER = $(ONL_KERN_VER_MAJOR).$(ONL_KERN_VER_MINOR)
+ONL_REPO = $(DEVICE)-onl
+ONL_DIR = $(BUILD_DIR)/$(ONL_REPO)
+.PHONY: onl
+onl:
+	if [ ! -d "$(ONL_DIR)/OpenNetworkLinux" ]; then \
+		mkdir -p $(ONL_DIR); \
+		git clone git@github.com:shadansari/$(ONL_REPO).git $(ONL_DIR); \
+		make -C $(ONL_DIR) $(DEVICE)-$(ONL_KERN_VER_MAJOR); \
+	fi;
+onl-force:
+	make -C $(ONL_DIR) $(DEVICE)-$(ONL_KERN_VER_MAJOR)
+clean-onl:
+distclean-onl:
+	sudo rm -rf $(ONL_DIR)
+
+########################################################################
+##
+##
+## 				BAL
+##
+##
+BAL_ZIP = SW-BCM68620_$(subst .,_,$(BAL_VER)).zip
+SDK_ZIP = sdk-all-$(SDK_VER).tar.gz
+ACCTON_PATCH = ACCTON_BAL_$(BAL_VER)-V$(ACCTON_VER).patch
+OPENOLT_BAL_PATCH = OPENOLT_BAL_$(BAL_VER).patch
+BAL_DIR = $(BUILD_DIR)/$(DEVICE)-bal
+ONL_KERNDIR = $(PWD)/$(ONL_DIR)/OpenNetworkLinux/packages/base/amd64/kernels/kernel-$(ONL_KERN_VER_MAJOR)-x86-64-all/builds
+MAPLE_KERNDIR = $(BAL_DIR)/bcm68620_release/$(DEVICE)/kernels
+BCM_SDK = $(BAL_DIR)/bal_release/3rdparty/bcm-sdk
+BALLIBDIR = $(BAL_DIR)/bal_release/build/core/lib
+BALLIBNAME = bal_api_dist
+BAL_INC = -I$(BAL_DIR)/bal_release/src/common/os_abstraction \
+	-I$(BAL_DIR)/bal_release/src/common/os_abstraction/posix \
+	-I$(BAL_DIR)/bal_release/src/common/config \
+	-I$(BAL_DIR)/bal_release/src/core/platform \
+	-I$(BAL_DIR)/bal_release/src/common/include \
+	-I$(BAL_DIR)/bal_release/src/lib/libbalapi \
+	-I$(BAL_DIR)/bal_release/3rdparty/maple/sdk/host_driver/utils \
+	-I$(BAL_DIR)/bal_release/src/balapiend \
+	-I$(BAL_DIR)/bal_release/src/common/dev_log \
+	-I$(BAL_DIR)/bal_release/src/common/bal_dist_utils  \
+	-I$(BAL_DIR)/bal_release/src/lib/libtopology \
+	-I$(BAL_DIR)/bal_release/3rdparty/maple/sdk/host_driver/model \
+	-I$(BAL_DIR)/bal_release/3rdparty/maple/sdk/host_driver/api \
+	-I$(BAL_DIR)/bal_release/src/lib/libcmdline \
+	-I$(BAL_DIR)/bal_release/src/lib/libutils \
+	-I$(BAL_DIR)/bal_release/3rdparty/maple/sdk/host_reference/cli
+CXXFLAGS += $(BAL_INC) -I $(BAL_DIR)/lib/cmdline
+.PHONY: get-$(BAL_DIR)
+get-$(BAL_DIR):
+#	if [ ! -e "download/$(BAL_ZIP)" ]; then \
+#		rm -rf /tmp/broadcom-proprietary; \
+#		git clone git@github.com:shadansari/broadcom-proprietary.git /tmp/broadcom-proprietary; \
+#		mv -f /tmp/broadcom-proprietary/$(BAL_VER)/$(BAL_ZIP) ./download; \
+#		mv -f /tmp/broadcom-proprietary/$(BAL_VER)/$(SDK_ZIP) ./download; \
+#		mv -f /tmp/broadcom-proprietary/$(BAL_VER)/$(ACCTON_PATCH) ./download; \
+#		mv -f /tmp/broadcom-proprietary/$(BAL_VER)/$(OPENOLT_BAL_PATCH) ./download; \
+#		rm -rf /tmp/broadcom-proprietary; \
+#	fi;
+.PHONY: bal
+bal: onl get-$(BAL_DIR)
+ifeq ("$(wildcard $(BAL_DIR))","")
+	mkdir $(BAL_DIR)
+	unzip download/$(BAL_ZIP) -d $(BAL_DIR)
+	cp download/$(SDK_ZIP) $(BCM_SDK)
+	chmod -R 744 $(BAL_DIR)
+	cat download/$(ACCTON_PATCH) | patch -p1 -d $(BAL_DIR)
+	mkdir -p $(MAPLE_KERNDIR)
+	ln -s $(ONL_KERNDIR)/linux-$(ONL_KERN_VER) $(MAPLE_KERNDIR)/linux-$(ONL_KERN_VER)
+	ln -s $(ONL_DIR)/OpenNetworkLinux/packages/base/any/kernels/archives/linux-$(ONL_KERN_VER).tar.xz $(MAPLE_KERNDIR)/linux-$(ONL_KERN_VER).tar.xz
+	ln -s $(ONL_DIR)/OpenNetworkLinux/packages/base/any/kernels/$(ONL_KERN_VER_MAJOR)/configs/x86_64-all/x86_64-all.config $(MAPLE_KERNDIR)/x86_64-all.config
+	make -C $(BAL_DIR)/bal_release BOARD=$(DEVICE) maple_sdk_dir
+	cat download/$(OPENOLT_BAL_PATCH) | patch -p1 -d $(BAL_DIR)
+	make -C $(BAL_DIR)/bal_release BOARD=$(DEVICE) maple_sdk
+	make -C $(BAL_DIR)/bal_release BOARD=$(DEVICE) switch_sdk_dir
+	make -C $(BAL_DIR)/bal_release BOARD=$(DEVICE) switch_sdk
+	KERNDIR=$(ONL_KERNDIR)/linux-$(ONL_KERN_VER) BOARD=$(DEVICE) ARCH=x86_64 SDKBUILD=build_bcm_user make -C $(BCM_SDK)/build-$(DEVICE)/sdk-all-$(SDK_VER)/systems/linux/user/x86-generic_64-2_6
+	make -C $(BAL_DIR)/bal_release BOARD=$(DEVICE) bal
+	make -C $(BAL_DIR)/bal_release BOARD=$(DEVICE) release_board
+	ln -s -f $(PWD)/$(BAL_DIR)/bcm68620_release/asfvolt16/release/release_$(DEVICE)_V$(BAL_MAJOR_VER).$(ACCTON_VER).tar.gz . 
+	ln -s -f $(PWD)/$(BAL_DIR)/bal_release/build/core/lib/libbal_api_dist.so .
+	ln -s -f $(PWD)/$(BAL_DIR)/bal_release/build/core/src/apps/bal_core_dist/bal_core_dist
+	mv -f release_$(DEVICE)_V$(BAL_MAJOR_VER).$(ACCTON_VER).tar.gz $(BUILD_DIR)
+	mv -f libbal_api_dist.so $(BUILD_DIR)
+	mv -f bal_core_dist $(BUILD_DIR)
+endif
+bal-rebuild:
+	make -C $(BAL_DIR)/bal_release BOARD=$(DEVICE) maple_sdk
+	make -C $(BAL_DIR)/bal_release BOARD=$(DEVICE) switch_sdk
+	KERNDIR=$(ONL_KERNDIR)/linux-$(ONL_KERN_VER) BOARD=$(DEVICE) ARCH=x86_64 SDKBUILD=build_bcm_user make -C $(BCM_SDK)/build-$(DEVICE)/sdk-all-$(SDK_VER)/systems/linux/user/x86-generic_64-2_6
+	make -C $(BAL_DIR)/bal_release BOARD=$(DEVICE) bal
+	make -C $(BAL_DIR)/bal_release BOARD=$(DEVICE) release_board
+	ln -s -f $(PWD)/$(BAL_DIR)/bcm68620_release/asfvolt16/release/release_$(DEVICE)_V$(BAL_MAJOR_VER).$(ACCTON_VER).tar.gz .
+	ln -s -f $(PWD)/$(BAL_DIR)/bal_release/build/core/lib/libbal_api_dist.so .
+	ln -s -f $(PWD)/$(BAL_DIR)/bal_release/build/core/src/apps/bal_core_dist/bal_core_dist .
+	mv -f release_$(DEVICE)_V$(BAL_MAJOR_VER).$(ACCTON_VER).tar.gz $(BUILD_DIR)
+	mv -f libbal_api_dist.so $(BUILD_DIR)
+	mv -f bal_core_dist $(BUILD_DIR)
+clean-bal: clean-onl
+distclean-bal: distclean-onl
+	sudo rm -rf $(BAL_DIR)
+	rm -f build/release_$(DEVICE)_V$(BAL_MAJOR_VER).$(ACCTON_VER).tar.gz
+
+########################################################################
+##
+##
+## 				OpenOLT API
+##
+##
+OPENOLT_API_DIR = $(BUILD_DIR)/openolt-api
+OPENOLT_API_LIB = $(OPENOLT_API_DIR)/libopenoltapi.a
+CXXFLAGS += -I./$(OPENOLT_API_DIR) -I $(OPENOLT_API_DIR)/googleapis/gens
+.PHONY: openolt-api
+openolt-api:
+	if [ ! -e "$(OPENOLT_API_DIR)" ]; then \
+		mkdir -p $(BUILD_DIR); \
+		git clone git@github.com:shadansari/openolt-api.git $(OPENOLT_API_DIR); \
+	fi;
+	make -C $(OPENOLT_API_DIR) all
+clean-openolt-api:
+	-make -C $(OPENOLT_API_DIR) clean
+distclean-openolt-api:
+
+########################################################################
+##
+##
+## 				Main
+##
+##
+SRCS = $(wildcard src/*.cc)
+OBJS = $(SRCS:.cc=.o)
+DEPS = $(SRCS:.cc=.d)
+.DEFAULT_GOAL := all
+all: $(BUILD_DIR)/openolt
+$(BUILD_DIR)/openolt: check openolt-api bal $(OBJS)
+	$(CXX) $(OBJS) $(LDFLAGS) $(OPENOLT_API_LIB) -o $@ -L$(BALLIBDIR) -l$(BALLIBNAME)
+	ln -s $(shell ldconfig -p | grep libgrpc.so.5 | tr ' ' '\n' | grep /) $(BUILD_DIR)/libgrpc.so.5
+	ln -s $(shell ldconfig -p | grep libgrpc++.so.1 | tr ' ' '\n' | grep /) $(BUILD_DIR)/libgrpc++.so.1
+	ln -s $(shell ldconfig -p | grep libgrpc++_reflection.so.1 | tr ' ' '\n' | grep /) $(BUILD_DIR)/libgrpc++_reflection.so.1
+
+src/%.o: %.cpp
+	$(CXX) -MMD -c $< -o $@
+
+clean: clean-bal
+	rm -f $(OBJS) $(DEPS) $(BUILD_DIR)/openolt
+	rm -rf $(OPENOLT_API_DIR)
+distclean: distclean-openolt-api distclean-bal
+	rm -rf $(BUILD_DIR)
+-include $(DEPS)
diff --git a/README.md b/README.md
new file mode 100644
index 0000000..6c9f7fb
--- /dev/null
+++ b/README.md
@@ -0,0 +1,86 @@
+# openolt
+
+**openolt** is an SDN Agent for white box Optical Line Terminals (OLTs). It exposes a well-documented, north-bound protobuf/gRPC [API](https://github.com/shadansari/openolt-api) for SDN controllers. [VOLTHA](https://github.com/opencord/voltha) support for **openolt** is under development. 
+
+**openolt** currently supports Broadcom's Maple/Qumran chipsets.
+
+```
+
+               +-------------------------------+
+               |         SDN Controller        |
+               |    (e.g. VOLTHA, ONOS, ODL)   |
+               +---------------+---------------+
+                               |
+              openolt gRPC API |
+                               |
+        +---------------------------------------------+
+        |                      |                      |
+        |      +---------------+---------------+      |
+        |      |            openolt            |      |
+        |      +---------------+---------------+      |
+        |                      |                      |
+        |  vendor-specific API |                      |
+        |                      |                      |
+        |      +---------------+---------------+      |
+        |      |   vendor asic/soc/fpga/...    |      |
+        |      +-------------------------------+      |
+        |                                             |
+        |                                             |
+        |                White box OLT                |
+        +---------------------------------------------+
+
+```
+## Software versions
+
+The following vendor proprietary source files are required to build **openolt**. These files can be obtained from Broadcom under NDA. Once an NDA is signed with Broadcom, these files are made available by Broadcom on their Customer Service Portal (CSP) via case CS3233745.
+
+- SW-BCM68620_<BAL_VER>.zip - Broadcom BAL source and Maple SDK.
+- sdk-all-<SDK_VER>.tar.gz - Broadcom Qumran SDK.
+- ACCTON_BAL_<BAL_VER>-<ACCTON_VER>.patch - Accton/Edgecore's patch.
+- OPENOLT_BAL_<BAL_VER>.patch - A patch to Broadcom software to allow compilation with C++ based openolt.
+
+The versions that have been tested are:
+
+- SW-BCM68620_2_4_3_6.zip
+- sdk-all-6.5.7.tar.gz
+- ACCTON_BAL_2.4.3.6-V201710131639.patch
+- OPENOLT_BAL_2.4.3.6.zip
+
+## Build
+
+Clone this repo, copy above four source code zip/patch files to the openolt/download directory, and run make:
+```shell
+git clone git@github.com:OpenOLT/openolt.git
+
+mv SW-BCM68620_2_4_3_6.zip sdk-all-6.5.7.tar.gz ACCTON_BAL_2.4.3.6-V201710131639.patch OPENOLT_BAL_2.4.3.6.zip openolt/download
+
+make
+```
+The **build** directory contains all the build artifacts:
+
+- **release_asfvolt16_V02.04.201710131639.tar.gz** - Broadcom BAL (specifically, this tar ball includes the bal_core_dist)
+- **openolt** - the **openolt** agent/driver
+- **libgrpc++_reflection.so.1  libgrpc++.so.1  libgrpc.so.5** - gRPC libraries
+
+## Copy files to target OLT
+
+1. Untar **release_asfvolt16_V02.04.201710131639.tar.gz** in the root (top level) directory
+2. Copy **openolt** to /broadcom
+3. Copy the gRPC libraries to /usr/local/lib
+
+
+## Run
+
+- Run bal_core_dist:
+```shell
+cd /broadcom
+ldconfig
+./bal_core_dist -C 10.6.0.201:40000 -A 10.6.0.201:50000
+```
+- Run openolt:
+```shell
+cd /broadcom
+ldconfig
+openolt  -C 10.6.0.201:40000 -A 10.6.0.201:50000
+```
+(Note - Substitute 10.6.0.201 with a local IP of the OLT - e.g. mgmt interface IP).
diff --git a/download/README.md b/download/README.md
new file mode 100644
index 0000000..021071d
--- /dev/null
+++ b/download/README.md
@@ -0,0 +1,10 @@
+# Broadcom proprietary src code required to build olt-brcm
+
+The following vendor proprietary source files are required to build. These files are available from Broadcom under NDA through a common CSP.
+
+- SW-BCM68620_<VER>.zip - Broadcom BAL source and Maple SDK.
+- sdk-all-<SDK_VER>.tar.gz - Broadcom Qumran SDK.
+- ACCTON_BAL_<BAL_VER>-<ACCTON_VER>.patch - Accton/Edgecore's patch.
+- OPENOLT_BAL_<BAL_VER>.patch - ONF's patch to BAL (to enable BAL to compile with C++ based openolt)
+
+Copy the above four files to this folder before running make in the top level directory.
diff --git a/src/Queue.h b/src/Queue.h
new file mode 100644
index 0000000..854851e
--- /dev/null
+++ b/src/Queue.h
@@ -0,0 +1,60 @@
+//
+// Copyright (c) 2013 Juan Palacios juan.palacios.puyana@gmail.com
+// Subject to the BSD 2-Clause License
+// - see < http://opensource.org/licenses/BSD-2-Clause>
+//
+
+#ifndef CONCURRENT_QUEUE_
+#define CONCURRENT_QUEUE_
+
+#include <queue>
+#include <thread>
+#include <mutex>
+#include <condition_variable>
+
+template <typename T>
+class Queue
+{
+ public:
+
+  T pop() 
+  {
+    std::unique_lock<std::mutex> mlock(mutex_);
+    while (queue_.empty())
+    {
+      cond_.wait(mlock);
+    }
+    auto val = queue_.front();
+    queue_.pop();
+    return val;
+  }
+
+  void pop(T& item)
+  {
+    std::unique_lock<std::mutex> mlock(mutex_);
+    while (queue_.empty())
+    {
+      cond_.wait(mlock);
+    }
+    item = queue_.front();
+    queue_.pop();
+  }
+
+  void push(const T& item)
+  {
+    std::unique_lock<std::mutex> mlock(mutex_);
+    queue_.push(item);
+    mlock.unlock();
+    cond_.notify_one();
+  }
+  Queue()=default;
+  Queue(const Queue&) = delete;            // disable copying
+  Queue& operator=(const Queue&) = delete; // disable assignment
+  
+ private:
+  std::queue<T> queue_;
+  std::mutex mutex_;
+  std::condition_variable cond_;
+};
+
+#endif
diff --git a/src/indications.cc b/src/indications.cc
new file mode 100644
index 0000000..78eb3b2
--- /dev/null
+++ b/src/indications.cc
@@ -0,0 +1,413 @@
+/*
+    Copyright (C) 2018 Open Networking Foundation
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+#include "indications.h"
+#include "server.h"
+#include "utils.h"
+extern "C"
+{
+#include <bcmos_system.h>
+#include <bal_api.h>
+#include <bal_api_end.h>
+}
+
+using grpc::Status;
+
+Queue<openolt::Indication> oltIndQ;
+//Queue<openolt::Indication*> oltIndQ;
+
+bool subscribed = false;
+
+bcmos_errno OmciIndication(bcmbal_obj *obj);
+
+bcmos_errno OltIndication(bcmbal_obj *obj) {
+    openolt::Indication ind;
+    openolt::OltIndication* olt_ind = new openolt::OltIndication;
+    Status status;
+
+    bcmbal_access_terminal_ind *acc_term_ind = (bcmbal_access_terminal_ind *)obj;
+    if (acc_term_ind->data.oper_status == BCMBAL_STATUS_UP) {
+        olt_ind->set_oper_state("up");
+    } else {
+        olt_ind->set_oper_state("down");
+    }
+    ind.set_allocated_olt_ind(olt_ind);
+    std::cout << "olt indication, oper_state:" << ind.olt_ind().oper_state() << std::endl;
+    oltIndQ.push(ind);
+
+    // Enable all PON interfaces.
+    for (int i = 0; i < MAX_SUPPORTED_INTF; i++) {
+        status = EnablePonIf_(i);
+        if (!status.ok()) {
+            // FIXME - raise alarm to report error in enabling PON
+        }
+    }
+
+    /* register for omci indication */
+    {
+        bcmbal_cb_cfg cb_cfg = {};
+        uint16_t ind_subgroup;
+
+        cb_cfg.module = BCMOS_MODULE_ID_NONE;
+        cb_cfg.obj_type = BCMBAL_OBJ_ID_PACKET;
+        ind_subgroup = BCMBAL_IND_SUBGROUP(packet, itu_omci_channel_rx);
+        cb_cfg.p_object_key_info = NULL;
+        cb_cfg.p_subgroup = &ind_subgroup;
+        cb_cfg.ind_cb_hdlr = (f_bcmbal_ind_handler)OmciIndication;
+        bcmbal_subscribe_ind(0, &cb_cfg);
+    }
+
+    return BCM_ERR_OK;
+}
+
+bcmos_errno LosIndication(bcmbal_obj *obj) {
+    openolt::Indication ind;
+    std::cout << "LOS indication " << std::endl;
+    return BCM_ERR_OK;
+}
+
+bcmos_errno IfIndication(bcmbal_obj *obj) {
+    openolt::Indication ind;
+    openolt::IntfIndication* intf_ind = new openolt::IntfIndication;
+
+    std::cout << "intf indication, intf_id:"
+              << ((bcmbal_interface_ind *)obj)->key.intf_id << std::endl;
+
+    intf_ind->set_intf_id(((bcmbal_interface_ind *)obj)->key.intf_id);
+    if (((bcmbal_interface_ind *)obj)->data.oper_status == BCMBAL_STATUS_UP) {
+        intf_ind->set_oper_state("up");
+    } else {
+        intf_ind->set_oper_state("down");
+    }
+    ind.set_allocated_intf_ind(intf_ind);
+
+    oltIndQ.push(ind);
+
+    return BCM_ERR_OK;
+}
+
+bcmos_errno IfOperIndication(bcmbal_obj *obj) {
+    openolt::Indication ind;
+    openolt::IntfOperIndication* intf_oper_ind = new openolt::IntfOperIndication;
+    std::cout << "intf oper state indication, intf_id:"
+              << ((bcmbal_interface_ind *)obj)->key.intf_id
+              << " type:" << ((bcmbal_interface_oper_status_change *)obj)->key.intf_type
+              << " oper_state:" << ((bcmbal_interface_oper_status_change *)obj)->data.new_oper_status
+              << " admin_state:" << ((bcmbal_interface_oper_status_change *)obj)->data.admin_state
+              << std::endl;
+
+    intf_oper_ind->set_intf_id(((bcmbal_interface_oper_status_change *)obj)->key.intf_id);
+
+    if (((bcmbal_interface_oper_status_change *)obj)->key.intf_type == BCMBAL_INTF_TYPE_NNI) {
+        intf_oper_ind->set_type("nni");
+    } else if (((bcmbal_interface_oper_status_change *)obj)->key.intf_type == BCMBAL_INTF_TYPE_PON) {
+        intf_oper_ind->set_type("pon");
+    } else {
+        intf_oper_ind->set_type("unknown");
+    }
+
+    if (((bcmbal_interface_oper_status_change *)obj)->data.new_oper_status == BCMBAL_STATUS_UP) {
+        intf_oper_ind->set_oper_state("up");
+    } else {
+        intf_oper_ind->set_oper_state("down");
+    }
+
+    ind.set_allocated_intf_oper_ind(intf_oper_ind);
+
+    oltIndQ.push(ind);
+    return BCM_ERR_OK;
+}
+
+bcmos_errno OnuAlarmIndication(bcmbal_obj *obj) {
+    openolt::Indication ind;
+    std::cout << "onu alarm indication" << std::endl;
+    return BCM_ERR_OK;
+}
+
+bcmos_errno OnuDyingGaspIndication(bcmbal_obj *obj) {
+    openolt::Indication ind;
+    std::cout << "onu dying-gasp indication" << std::endl;
+    return BCM_ERR_OK;
+}
+
+bcmos_errno OnuDiscoveryIndication(bcmbal_cfg *obj) {
+    openolt::Indication ind;
+    openolt::OnuDiscIndication* onu_disc_ind = new openolt::OnuDiscIndication;
+    openolt::SerialNumber* serial_number = new openolt::SerialNumber;
+
+    bcmbal_subscriber_terminal_key *key =
+        &(((bcmbal_subscriber_terminal_sub_term_disc*)obj)->key);
+
+    bcmbal_subscriber_terminal_sub_term_disc_data *data =
+        &(((bcmbal_subscriber_terminal_sub_term_disc*)obj)->data);
+
+    bcmbal_serial_number *in_serial_number = &(data->serial_number);
+
+    std::cout << "onu discover indication, intf_id:"
+         << key->intf_id
+         << " serial_number:"
+         << serial_number_to_str(in_serial_number) << std::endl;
+
+    onu_disc_ind->set_intf_id(key->intf_id);
+    serial_number->set_vendor_id(reinterpret_cast<const char *>(in_serial_number->vendor_id), 4);
+    serial_number->set_vendor_specific(reinterpret_cast<const char *>(in_serial_number->vendor_specific), 8);
+    onu_disc_ind->set_allocated_serial_number(serial_number);
+    ind.set_allocated_onu_disc_ind(onu_disc_ind);
+
+    oltIndQ.push(ind);
+
+    return BCM_ERR_OK;
+}
+
+bcmos_errno OnuIndication(bcmbal_obj *obj) {
+    openolt::Indication ind;
+    openolt::OnuIndication* onu_ind = new openolt::OnuIndication;
+    openolt::SerialNumber* serial_number = new openolt::SerialNumber;
+
+    bcmbal_subscriber_terminal_key *key =
+        &(((bcmbal_subscriber_terminal_ind*)obj)->key);
+
+    bcmbal_subscriber_terminal_ind_data *data =
+        &(((bcmbal_subscriber_terminal_ind*)obj)->data);
+
+    bcmbal_serial_number *in_serial_number = &(data->serial_number);
+
+    std::cout << "onu indication, intf_id:"
+         << key->intf_id
+         << " serial_number:"
+         << serial_number_to_str(in_serial_number) << std::endl;
+
+    onu_ind->set_intf_id(key->intf_id);
+    onu_ind->set_onu_id(key->sub_term_id);
+    serial_number->set_vendor_id(reinterpret_cast<const char *>(in_serial_number->vendor_id), 4);
+    serial_number->set_vendor_specific(reinterpret_cast<const char *>(in_serial_number->vendor_specific), 8);
+    onu_ind->set_allocated_serial_number(serial_number);
+    ind.set_allocated_onu_ind(onu_ind);
+
+    oltIndQ.push(ind);
+    return BCM_ERR_OK;
+}
+
+bcmos_errno OnuOperIndication(bcmbal_obj *obj) {
+    openolt::Indication ind;
+    std::cout << "onu oper state indication" << std::endl;
+    return BCM_ERR_OK;
+}
+
+bcmos_errno OmciIndication(bcmbal_obj *obj) {
+    openolt::Indication ind;
+    openolt::OmciIndication* omci_ind = new openolt::OmciIndication;
+    bcmbal_packet_itu_omci_channel_rx *omci_channel =
+        (bcmbal_packet_itu_omci_channel_rx *)obj;
+
+    std::cout << "omci indication" << std::endl;
+
+    omci_ind->set_intf_id(
+        omci_channel->key.packet_send_dest.u.itu_omci_channel.intf_id);
+    omci_ind->set_onu_id(
+        omci_channel->key.packet_send_dest.u.itu_omci_channel.sub_term_id);
+    omci_ind->set_pkt(omci_channel->data.pkt.val, omci_channel->data.pkt.len);
+
+    ind.set_allocated_omci_ind(omci_ind);
+    oltIndQ.push(ind);
+
+    return BCM_ERR_OK;
+}
+
+bcmos_errno PacketInIndication(bcmbal_obj *obj) {
+    openolt::Indication ind;
+    std::cout << "packet-in indication" << std::endl;
+    return BCM_ERR_OK;
+}
+
+bcmos_errno FlowOperIndication(bcmbal_obj *obj) {
+    openolt::Indication ind;
+    std::cout << "flow oper state indication" << std::endl;
+    return BCM_ERR_OK;
+}
+
+bcmos_errno FlowIndication(bcmbal_obj *obj) {
+    openolt::Indication ind;
+    std::cout << "flow indication" << std::endl;
+    return BCM_ERR_OK;
+}
+
+bcmos_errno TmQIndication(bcmbal_obj *obj) {
+    openolt::Indication ind;
+    std::cout << "traffic mgmt queue indication" << std::endl;
+    return BCM_ERR_OK;
+}
+
+bcmos_errno TmSchedIndication(bcmbal_obj *obj) {
+    openolt::Indication ind;
+    std::cout << "traffic mgmt sheduler indication" << std::endl;
+    return BCM_ERR_OK;
+}
+
+bcmos_errno McastGroupIndication(bcmbal_obj *obj) {
+    openolt::Indication ind;
+    std::cout << "mcast group indication" << std::endl;
+    return BCM_ERR_OK;
+}
+
+Status SubscribeIndication() {
+    bcmbal_cb_cfg cb_cfg = {};
+    uint16_t ind_subgroup;
+
+    if (subscribed) {
+        return Status::OK;
+    }
+
+    cb_cfg.module = BCMOS_MODULE_ID_NONE;
+
+
+    /* OLT device indication */
+    cb_cfg.obj_type = BCMBAL_OBJ_ID_ACCESS_TERMINAL;
+    ind_subgroup = bcmbal_access_terminal_auto_id_ind;
+    cb_cfg.p_subgroup = &ind_subgroup;
+    cb_cfg.ind_cb_hdlr = (f_bcmbal_ind_handler)OltIndication;
+    if (BCM_ERR_OK != bcmbal_subscribe_ind(DEFAULT_ATERM_ID, &cb_cfg)) {
+        return Status(grpc::StatusCode::INTERNAL, "Olt indication subscribe failed");
+    }
+
+    /* Interface LOS indication */
+    cb_cfg.obj_type = BCMBAL_OBJ_ID_INTERFACE;
+    ind_subgroup = bcmbal_interface_auto_id_los;
+    cb_cfg.p_subgroup = &ind_subgroup;
+    cb_cfg.ind_cb_hdlr = (f_bcmbal_ind_handler)LosIndication;
+    if (BCM_ERR_OK != bcmbal_subscribe_ind(DEFAULT_ATERM_ID, &cb_cfg)) {
+        return Status(grpc::StatusCode::INTERNAL, "LOS indication subscribe failed");
+    }
+
+    /* Interface indication */
+    cb_cfg.obj_type = BCMBAL_OBJ_ID_INTERFACE;
+    ind_subgroup = bcmbal_interface_auto_id_ind;
+    cb_cfg.p_subgroup = &ind_subgroup;
+    cb_cfg.ind_cb_hdlr = (f_bcmbal_ind_handler)IfIndication;
+    if (BCM_ERR_OK != bcmbal_subscribe_ind(DEFAULT_ATERM_ID, &cb_cfg)) {
+        return Status(grpc::StatusCode::INTERNAL, "Interface indication subscribe failed");
+    }
+
+    /* Interface operational state change indication */
+    cb_cfg.obj_type = BCMBAL_OBJ_ID_INTERFACE;
+    ind_subgroup = bcmbal_interface_auto_id_oper_status_change;
+    cb_cfg.p_subgroup = &ind_subgroup;
+    cb_cfg.ind_cb_hdlr = (f_bcmbal_ind_handler)IfOperIndication;
+    if (BCM_ERR_OK != bcmbal_subscribe_ind(DEFAULT_ATERM_ID, &cb_cfg)) {
+        return Status(grpc::StatusCode::INTERNAL, "Interface operations state change indication subscribe failed");
+    }
+
+    /* onu alarm indication */
+    cb_cfg.obj_type = BCMBAL_OBJ_ID_SUBSCRIBER_TERMINAL;
+    ind_subgroup = bcmbal_subscriber_terminal_auto_id_sub_term_alarm;
+    cb_cfg.p_subgroup = &ind_subgroup;
+    cb_cfg.ind_cb_hdlr = (f_bcmbal_ind_handler)OnuAlarmIndication;
+    if (BCM_ERR_OK != bcmbal_subscribe_ind(DEFAULT_ATERM_ID, &cb_cfg)) {
+        return Status(grpc::StatusCode::INTERNAL, "onu alarm indication subscribe failed");
+    }
+
+    /* onu dying-gasp indication  */
+    cb_cfg.obj_type = BCMBAL_OBJ_ID_SUBSCRIBER_TERMINAL;
+    ind_subgroup = bcmbal_subscriber_terminal_auto_id_dgi;
+    cb_cfg.p_subgroup = &ind_subgroup;
+    cb_cfg.ind_cb_hdlr = (f_bcmbal_ind_handler)OnuDyingGaspIndication;
+    if (BCM_ERR_OK != bcmbal_subscribe_ind(DEFAULT_ATERM_ID, &cb_cfg)) {
+        return Status(grpc::StatusCode::INTERNAL, "onu dying-gasp indication subscribe failed");
+    }
+
+    /* onu discovery indication */
+    cb_cfg.obj_type = BCMBAL_OBJ_ID_SUBSCRIBER_TERMINAL;
+    ind_subgroup = bcmbal_subscriber_terminal_auto_id_sub_term_disc;
+    cb_cfg.p_subgroup = &ind_subgroup;
+    cb_cfg.ind_cb_hdlr = (f_bcmbal_ind_handler)OnuDiscoveryIndication;
+    if (BCM_ERR_OK != bcmbal_subscribe_ind(DEFAULT_ATERM_ID, &cb_cfg)) {
+        return Status(grpc::StatusCode::INTERNAL, "onu discovery indication subscribe failed");
+    }
+
+    /* onu indication */
+    cb_cfg.obj_type = BCMBAL_OBJ_ID_SUBSCRIBER_TERMINAL;
+    ind_subgroup = bcmbal_subscriber_terminal_auto_id_ind;
+    cb_cfg.p_subgroup = &ind_subgroup;
+    cb_cfg.ind_cb_hdlr = (f_bcmbal_ind_handler)OnuIndication;
+    if (BCM_ERR_OK != bcmbal_subscribe_ind(DEFAULT_ATERM_ID, &cb_cfg)) {
+        return Status(grpc::StatusCode::INTERNAL, "onu indication subscribe failed");
+    }
+    /* onu operational state change indication */
+    cb_cfg.obj_type = BCMBAL_OBJ_ID_SUBSCRIBER_TERMINAL;
+    ind_subgroup = bcmbal_subscriber_terminal_auto_id_oper_status_change;
+    cb_cfg.p_subgroup = &ind_subgroup;
+    cb_cfg.ind_cb_hdlr = (f_bcmbal_ind_handler)OnuOperIndication;
+    if (BCM_ERR_OK != bcmbal_subscribe_ind(DEFAULT_ATERM_ID, &cb_cfg)) {
+        return Status(grpc::StatusCode::INTERNAL, "onu operational state change indication subscribe failed");
+    }
+
+    /* Packet-in indications */
+    cb_cfg.obj_type = BCMBAL_OBJ_ID_PACKET;
+    ind_subgroup = bcmbal_packet_auto_id_bearer_channel_rx;
+    cb_cfg.p_subgroup = &ind_subgroup;
+    cb_cfg.ind_cb_hdlr = (f_bcmbal_ind_handler)PacketInIndication;
+    if (BCM_ERR_OK != bcmbal_subscribe_ind(DEFAULT_ATERM_ID, &cb_cfg)) {
+        return Status(grpc::StatusCode::INTERNAL, "Packet-in indication subscribe failed");
+    }
+
+    /* Flow Operational State Change */
+    cb_cfg.obj_type = BCMBAL_OBJ_ID_FLOW;
+    ind_subgroup = bcmbal_flow_auto_id_oper_status_change;
+    cb_cfg.p_subgroup = &ind_subgroup;
+    cb_cfg.ind_cb_hdlr = (f_bcmbal_ind_handler)FlowOperIndication;
+    if (BCM_ERR_OK != bcmbal_subscribe_ind(DEFAULT_ATERM_ID, &cb_cfg)) {
+        return Status(grpc::StatusCode::INTERNAL, "Flow operational state change indication subscribe failed");
+    }
+    /* Flow Indication */
+    cb_cfg.obj_type = BCMBAL_OBJ_ID_FLOW;
+    ind_subgroup = bcmbal_flow_auto_id_ind;
+    cb_cfg.p_subgroup = &ind_subgroup;
+    cb_cfg.ind_cb_hdlr = (f_bcmbal_ind_handler)FlowIndication;
+    if (BCM_ERR_OK != bcmbal_subscribe_ind(DEFAULT_ATERM_ID, &cb_cfg)) {
+        return Status(grpc::StatusCode::INTERNAL, "Flow indication subscribe failed");
+    }
+
+    /* TM queue indication */
+    cb_cfg.obj_type = BCMBAL_OBJ_ID_TM_QUEUE;
+    ind_subgroup = bcmbal_tm_queue_auto_id_ind;
+    cb_cfg.p_subgroup = &ind_subgroup;
+    cb_cfg.ind_cb_hdlr = (f_bcmbal_ind_handler)TmQIndication;
+    if (BCM_ERR_OK != bcmbal_subscribe_ind(DEFAULT_ATERM_ID, &cb_cfg)) {
+        return Status(grpc::StatusCode::INTERNAL, "Traffic mgmt queue indication subscribe failed");
+    }
+
+    /* TM sched indication */
+    cb_cfg.obj_type = BCMBAL_OBJ_ID_TM_SCHED;
+    ind_subgroup = bcmbal_tm_sched_auto_id_ind;
+    cb_cfg.p_subgroup = &ind_subgroup;
+    cb_cfg.ind_cb_hdlr = (f_bcmbal_ind_handler)TmSchedIndication;
+    if (BCM_ERR_OK != bcmbal_subscribe_ind(DEFAULT_ATERM_ID, &cb_cfg)) {
+        return Status(grpc::StatusCode::INTERNAL, "Traffic mgmt queue indication subscribe failed");
+    }
+
+    /* Multicast group indication */
+    cb_cfg.obj_type = BCMBAL_OBJ_ID_GROUP;
+    ind_subgroup = bcmbal_group_auto_id_ind;
+    cb_cfg.p_subgroup = &ind_subgroup;
+    cb_cfg.ind_cb_hdlr = (f_bcmbal_ind_handler)McastGroupIndication;
+    if (BCM_ERR_OK != bcmbal_subscribe_ind(DEFAULT_ATERM_ID, &cb_cfg)) {
+        return Status(grpc::StatusCode::INTERNAL, "Multicast group indication subscribe failed");
+    }
+
+    subscribed = true;
+
+    return Status::OK;
+}
diff --git a/src/indications.h b/src/indications.h
new file mode 100644
index 0000000..2160aa6
--- /dev/null
+++ b/src/indications.h
@@ -0,0 +1,27 @@
+/*
+    Copyright (C) 2018 Open Networking Foundation 
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef OPENASF_INDICATIONS_H_
+#define OPENASF_INDICATIONS_H_
+#include <grpc++/grpc++.h>
+#include <openolt.grpc.pb.h>
+#include "Queue.h"
+
+extern Queue<openolt::Indication> oltIndQ;
+extern grpc::Status SubscribeIndication();
+
+#endif
diff --git a/src/indications.o b/src/indications.o
new file mode 100644
index 0000000..afb1925
--- /dev/null
+++ b/src/indications.o
Binary files differ
diff --git a/src/main.cc b/src/main.cc
new file mode 100644
index 0000000..3f8fba4
--- /dev/null
+++ b/src/main.cc
@@ -0,0 +1,56 @@
+/*
+    Copyright (C) 2018 Open Networking Foundation 
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+#include <iostream>
+
+#include "indications.h"
+#include "server.h"
+
+extern "C"
+{
+#include <bal_api.h>
+#include <bal_api_end.h>
+}
+
+int main(int argc, char** argv) {
+
+    if (argc < 5) {
+        std::cout << "Missing arguments" << std::endl;
+        exit(1);
+    }
+
+    bcmbal_init(argc, argv, NULL);
+
+    Status status = SubscribeIndication();
+    if (!status.ok()) {
+        std::cout << "ERROR: SubscribeIndication failed - "
+                  << status.error_code() << ": " << status.error_message()
+                  << std::endl;
+        return 1;
+    }
+
+    status = Enable_();
+    if (!status.ok()) {
+        std::cout << "ERROR: Enable_ failed - "
+                  << status.error_code() << ": " << status.error_message()
+                  << std::endl;
+        return 1;
+    }
+
+    RunServer();
+
+  return 0;
+}
diff --git a/src/main.o b/src/main.o
new file mode 100644
index 0000000..1098108
--- /dev/null
+++ b/src/main.o
Binary files differ
diff --git a/src/server.cc b/src/server.cc
new file mode 100644
index 0000000..25594d4
--- /dev/null
+++ b/src/server.cc
@@ -0,0 +1,478 @@
+/*
+    Copyright (C) 2018 Open Networking Foundation 
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include <iostream>
+#include <memory>
+#include <string>
+
+#include "Queue.h"
+#include <iostream>
+#include <sstream>
+
+#include "server.h"
+#include "indications.h"
+
+extern "C"
+{
+#include <bcmos_system.h>
+#include <bal_api.h>
+#include <bal_api_end.h>
+}
+#include <openolt.grpc.pb.h>
+
+using grpc::Server;
+using grpc::ServerBuilder;
+using grpc::ServerContext;
+using grpc::ServerWriter;
+
+const char *serverPort = "0.0.0.0:9191";
+
+class OpenoltService final : public openolt::Openolt::Service {
+
+    Status ActivateOnu(
+            ServerContext* context,
+            const openolt::Onu* request,
+            openolt::Empty* response) override {
+        return ActivateOnu_(
+            request->intf_id(),
+            request->onu_id(),
+            ((request->serial_number()).vendor_id()).c_str(),
+            ((request->serial_number()).vendor_specific()).c_str());
+    }
+
+    Status OmciMsgOut(
+            ServerContext* context,
+            const openolt::OmciMsg* request,
+            openolt::Empty* response) override {
+        return OmciMsgOut_(
+            request->intf_id(),
+            request->onu_id(),
+            request->pkt());
+    }
+
+    Status FlowAdd(
+            ServerContext* context,
+            const openolt::Flow* request,
+            openolt::Empty* response) override {
+        return FlowAdd_(
+            request->onu_id(),
+            request->flow_id(),
+            request->flow_type(),
+            request->access_intf_id(),
+            request->network_intf_id(),
+            request->gemport_id(),
+            request->classifier(),
+            request->action());
+    }
+
+    Status EnableIndication(
+            ServerContext* context,
+            const ::openolt::Empty* request,
+            ServerWriter<openolt::Indication>* writer) override {
+        while (1) {
+            auto oltInd = oltIndQ.pop();
+            writer->Write(oltInd);
+            //oltInd.release_olt_ind()
+        }
+        return Status::OK;
+    }
+};
+
+void RunServer() {
+  OpenoltService service;
+  std::string server_address(serverPort);
+  ServerBuilder builder;
+
+  builder.AddListeningPort(server_address, grpc::InsecureServerCredentials());
+  builder.RegisterService(&service);
+
+  std::unique_ptr<Server> server(builder.BuildAndStart());
+
+  std::cout << "Server listening on " << server_address << std::endl;
+
+  server->Wait();
+}
+
+Status Enable_() {
+    static bool enabled = false;
+    bcmbal_access_terminal_cfg acc_term_obj;
+    bcmbal_access_terminal_key key = { };
+
+    if (!enabled) {
+        std::cout << "Enable OLT" << std::endl;
+        key.access_term_id = DEFAULT_ATERM_ID;
+        BCMBAL_CFG_INIT(&acc_term_obj, access_terminal, key);
+        BCMBAL_CFG_PROP_SET(&acc_term_obj, access_terminal, admin_state, BCMBAL_STATE_UP);
+        if (bcmbal_cfg_set(DEFAULT_ATERM_ID, &(acc_term_obj.hdr))) {
+            std::cout << "ERROR: Failed to enable OLT" << std::endl;
+            return Status(grpc::StatusCode::INTERNAL, "Failed to enable OLT");
+        }
+        enabled = true;
+    }
+    return Status::OK;
+}
+
+Status EnablePonIf_(uint32_t intf_id) {
+    bcmbal_interface_cfg interface_obj;
+    bcmbal_interface_key interface_key;
+    
+    interface_key.intf_id = intf_id;
+    interface_key.intf_type = BCMBAL_INTF_TYPE_PON;
+
+    BCMBAL_CFG_INIT(&interface_obj, interface, interface_key);
+    BCMBAL_CFG_PROP_SET(&interface_obj, interface, admin_state, BCMBAL_STATE_UP);
+
+    if (bcmbal_cfg_set(DEFAULT_ATERM_ID, &(interface_obj.hdr))) {
+        std::cout << "ERROR: Failed to enable PON interface: " << intf_id << std::endl;
+        return Status(grpc::StatusCode::INTERNAL, "Failed to enable PON interface");
+    }
+
+    return Status::OK;
+}
+
+Status ActivateOnu_(uint32_t intf_id, uint32_t onu_id,
+    const char *vendor_id, const char *vendor_specific) {
+
+    bcmbal_subscriber_terminal_cfg sub_term_obj = {};
+    bcmbal_subscriber_terminal_key subs_terminal_key;
+    bcmbal_serial_number serial_num = {};
+    bcmbal_registration_id registration_id = {};
+
+    std::cout << "Enabling ONU " << onu_id << " on PON " << intf_id << std::endl;
+    std::cout << "Vendor Id " << vendor_id
+              << "Vendor Specific Id " << vendor_specific
+              << std::endl;
+
+    subs_terminal_key.sub_term_id = onu_id;
+    subs_terminal_key.intf_id = intf_id;
+    BCMBAL_CFG_INIT(&sub_term_obj, subscriber_terminal, subs_terminal_key);
+
+    memcpy(serial_num.vendor_id, vendor_id, 4);
+    memcpy(serial_num.vendor_specific, vendor_specific, 4);
+    BCMBAL_CFG_PROP_SET(&sub_term_obj, subscriber_terminal, serial_number, serial_num);
+
+    // FIXME - Use a default (all zeros) registration id.
+    memset(registration_id.arr, 0, sizeof(registration_id.arr));
+    BCMBAL_CFG_PROP_SET(&sub_term_obj, subscriber_terminal, registration_id, registration_id);
+
+    BCMBAL_CFG_PROP_SET(&sub_term_obj, subscriber_terminal, admin_state, BCMBAL_STATE_UP);
+
+    if (bcmbal_cfg_set(DEFAULT_ATERM_ID, &(sub_term_obj.hdr))) {
+        std::cout << "ERROR: Failed to enable ONU: " << std::endl;
+        return Status(grpc::StatusCode::INTERNAL, "Failed to enable ONU");
+    }
+
+    return SchedAdd_(intf_id, onu_id, mk_agg_port_id(onu_id));
+
+    //return Status::OK;
+}
+
+#define MAX_CHAR_LENGTH  20
+#define MAX_OMCI_MSG_LENGTH 44
+Status OmciMsgOut_(uint32_t intf_id, uint32_t onu_id, const std::string pkt) {
+    bcmbal_u8_list_u32_max_2048 buf; /* A structure with a msg pointer and length value */
+    bcmos_errno err = BCM_ERR_OK;
+
+    /* The destination of the OMCI packet is a registered ONU on the OLT PON interface */
+    bcmbal_dest proxy_pkt_dest;
+
+    proxy_pkt_dest.type = BCMBAL_DEST_TYPE_ITU_OMCI_CHANNEL;
+    proxy_pkt_dest.u.itu_omci_channel.sub_term_id = onu_id;
+    proxy_pkt_dest.u.itu_omci_channel.intf_id = intf_id;
+
+    // ???
+    if ((pkt.size()/2) > MAX_OMCI_MSG_LENGTH) {
+        buf.len = MAX_OMCI_MSG_LENGTH;
+    } else {
+        buf.len = pkt.size()/2;
+    }
+
+    /* Send the OMCI packet using the BAL remote proxy API */
+    uint16_t idx1 = 0;
+    uint16_t idx2 = 0;
+    uint8_t arraySend[buf.len];
+    char str1[MAX_CHAR_LENGTH];
+    char str2[MAX_CHAR_LENGTH];
+    memset(&arraySend, 0, buf.len);
+
+    std::cout << "Sending omci msg to ONU of length is "
+         << buf.len
+         << std::endl;
+
+    for (idx1=0,idx2=0; idx1<((buf.len)*2); idx1++,idx2++) {
+       sprintf(str1,"%c", pkt[idx1]);
+       sprintf(str2,"%c", pkt[++idx1]);
+       strcat(str1,str2);
+       arraySend[idx2] = strtol(str1, NULL, 16);
+    }
+
+    buf.val = (uint8_t *)malloc((buf.len)*sizeof(uint8_t));
+    memcpy(buf.val,(uint8_t *)arraySend,buf.len);
+
+    std::cout << "After converting bytes to hex "
+              << buf.val << buf.len << std::endl;
+
+    err = bcmbal_pkt_send(0, proxy_pkt_dest,
+                         (const char *)(buf.val), buf.len);
+
+    std::cout << "OMCI request msg of length " << buf.len
+              << " sent to ONU" << onu_id
+              << " through PON " << intf_id << std::endl;
+
+    free(buf.val);
+
+    return Status::OK;
+}
+
+Status FlowAdd_(uint32_t onu_id,
+                uint32_t flow_id, const std::string flow_type,
+                uint32_t access_intf_id, uint32_t network_intf_id,
+                uint32_t gemport_id,
+                const ::openolt::Classifier& classifier,
+                const ::openolt::Action& action) {
+    bcmos_errno err;
+    bcmbal_flow_cfg cfg;
+    bcmbal_flow_key key = { };
+
+    std::cout << "flow add -"
+              << " intf_id:" << access_intf_id
+              << " onu_id:" << onu_id
+              << " flow_id:" << flow_id
+              << " flow_type:" << flow_type
+              << " gemport_id:" << gemport_id
+              << " network_intf_id:" << network_intf_id
+              << std::endl;
+
+    key.flow_id = flow_id;
+    if (flow_type.compare("upstream") == 0 ) {
+        key.flow_type = BCMBAL_FLOW_TYPE_UPSTREAM;
+    } else if (flow_type.compare("downstream") == 0) {
+        key.flow_type = BCMBAL_FLOW_TYPE_DOWNSTREAM;
+    } else {
+        std::cout << "Invalid flow type " << flow_type << std::endl;
+        return Status::CANCELLED;
+    }
+
+    BCMBAL_CFG_INIT(&cfg, flow, key);
+
+    BCMBAL_CFG_PROP_SET(&cfg, flow, admin_state, BCMBAL_STATE_UP);
+    BCMBAL_CFG_PROP_SET(&cfg, flow, access_int_id, access_intf_id);
+    BCMBAL_CFG_PROP_SET(&cfg, flow, network_int_id, network_intf_id);
+    BCMBAL_CFG_PROP_SET(&cfg, flow, sub_term_id, onu_id);
+    BCMBAL_CFG_PROP_SET(&cfg, flow, svc_port_id, gemport_id);
+
+    {
+        bcmbal_classifier val = { };
+
+        if (classifier.o_tpid()) {
+            val.o_tpid = classifier.o_tpid();
+            val.presence_mask = val.presence_mask | BCMBAL_CLASSIFIER_ID_O_TPID;
+        }
+
+        if (classifier.o_vid()) {
+            val.o_vid = classifier.o_vid();
+            val.presence_mask = val.presence_mask | BCMBAL_CLASSIFIER_ID_O_VID;
+        }
+
+        if (classifier.i_tpid()) {
+            val.i_tpid = classifier.i_tpid();
+            val.presence_mask = val.presence_mask | BCMBAL_CLASSIFIER_ID_I_TPID;
+        }
+
+        if (classifier.i_vid()) {
+            val.i_vid = classifier.i_vid();
+            val.presence_mask = val.presence_mask | BCMBAL_CLASSIFIER_ID_I_VID;
+        }
+
+        if (classifier.o_pbits()) {
+            val.o_pbits = classifier.o_pbits();
+            val.presence_mask = val.presence_mask | BCMBAL_CLASSIFIER_ID_O_PBITS;
+        }
+
+        if (classifier.i_pbits()) {
+            val.i_pbits = classifier.i_pbits();
+            val.presence_mask = val.presence_mask | BCMBAL_CLASSIFIER_ID_I_PBITS;
+        }
+
+        if (classifier.eth_type()) {
+            val.ether_type = classifier.eth_type();
+            val.presence_mask = val.presence_mask | BCMBAL_CLASSIFIER_ID_ETHER_TYPE;
+        }
+
+        /*
+        if (classifier.dst_mac()) {
+            val.dst_mac = classifier.dst_mac();
+            val.presence_mask = val.presence_mask | BCMBAL_CLASSIFIER_ID_DST_MAC;
+        }
+
+        if (classifier.src_mac()) {
+            val.src_mac = classifier.src_mac();
+            val.presence_mask = val.presence_mask | BCMBAL_CLASSIFIER_ID_SRC_MAC;
+        }
+        */
+
+        if (classifier.ip_proto()) {
+            val.ip_proto = classifier.ip_proto();
+            val.presence_mask = val.presence_mask | BCMBAL_CLASSIFIER_ID_IP_PROTO;
+        }
+
+        /*
+        if (classifier.dst_ip()) {
+            val.dst_ip = classifier.dst_ip();
+            val.presence_mask = val.presence_mask | BCMBAL_CLASSIFIER_ID_DST_IP;
+        }
+
+        if (classifier.src_ip()) {
+            val.src_ip = classifier.src_ip();
+            val.presence_mask = val.presence_mask | BCMBAL_CLASSIFIER_ID_SRC_IP;
+        }
+        */
+
+        if (classifier.src_port()) {
+            val.src_port = classifier.src_port();
+            val.presence_mask = val.presence_mask | BCMBAL_CLASSIFIER_ID_SRC_PORT;
+        }
+
+        if (classifier.dst_port()) {
+            val.dst_port = classifier.dst_port();
+            val.presence_mask = val.presence_mask | BCMBAL_CLASSIFIER_ID_DST_PORT;
+        }
+
+        if (!classifier.pkt_tag_type().empty()) {
+            if (classifier.pkt_tag_type().compare("untagged") == 0) {
+                val.pkt_tag_type = BCMBAL_PKT_TAG_TYPE_UNTAGGED;
+                val.presence_mask = val.presence_mask | BCMBAL_CLASSIFIER_ID_PKT_TAG_TYPE;
+            } else if (classifier.pkt_tag_type().compare("single_tag") == 0) {
+                val.pkt_tag_type = BCMBAL_PKT_TAG_TYPE_SINGLE_TAG;
+                val.presence_mask = val.presence_mask | BCMBAL_CLASSIFIER_ID_PKT_TAG_TYPE;
+            } else if (classifier.pkt_tag_type().compare("double_tag") == 0) {
+                val.pkt_tag_type = BCMBAL_PKT_TAG_TYPE_DOUBLE_TAG;
+                val.presence_mask = val.presence_mask | BCMBAL_CLASSIFIER_ID_PKT_TAG_TYPE;
+            }
+        }
+
+        BCMBAL_CFG_PROP_SET(&cfg, flow, classifier, val);
+    }
+
+    {
+        bcmbal_action val = { };
+
+        const ::openolt::ActionCmd& cmd = action.cmd();
+
+        if (cmd.add_outer_tag()) {
+            val.cmds_bitmask |= BCMBAL_ACTION_CMD_ID_ADD_OUTER_TAG;
+            val.presence_mask |= BCMBAL_ACTION_ID_CMDS_BITMASK;
+        }
+
+        if (cmd.remove_outer_tag()) {
+            val.cmds_bitmask |= BCMBAL_ACTION_CMD_ID_REMOVE_OUTER_TAG;
+            val.presence_mask |= BCMBAL_ACTION_ID_CMDS_BITMASK;
+        }
+
+        if (cmd.trap_to_host()) {
+            val.cmds_bitmask |= BCMBAL_ACTION_CMD_ID_TRAP_TO_HOST;
+            val.presence_mask |= BCMBAL_ACTION_ID_CMDS_BITMASK;
+        }
+
+        if (action.o_vid()) {
+            val.o_vid = action.o_vid();
+            val.presence_mask = val.presence_mask | BCMBAL_ACTION_ID_O_VID;
+        }
+
+        if (action.o_pbits()) {
+            val.o_pbits = action.o_pbits();
+            val.presence_mask = val.presence_mask | BCMBAL_ACTION_ID_O_PBITS;
+        }
+
+        if (action.o_tpid()) {
+            val.o_tpid = action.o_tpid();
+            val.presence_mask = val.presence_mask | BCMBAL_ACTION_ID_O_TPID;
+        }
+
+        if (action.i_vid()) {
+            val.i_vid = action.i_vid();
+            val.presence_mask = val.presence_mask | BCMBAL_ACTION_ID_I_VID;
+        }
+
+        if (action.i_pbits()) {
+            val.i_pbits = action.i_pbits();
+            val.presence_mask = val.presence_mask | BCMBAL_ACTION_ID_I_PBITS;
+        }
+
+        if (action.i_tpid()) {
+            val.i_tpid = action.i_tpid();
+            val.presence_mask = val.presence_mask | BCMBAL_ACTION_ID_I_TPID;
+        }
+
+        BCMBAL_CFG_PROP_SET(&cfg, flow, action, val);
+    }
+
+    {
+        bcmbal_tm_sched_id val;
+        val = (bcmbal_tm_sched_id) mk_sched_id(onu_id);
+        BCMBAL_CFG_PROP_SET(&cfg, flow, dba_tm_sched_id, val);
+    }
+
+    if (bcmbal_cfg_set(DEFAULT_ATERM_ID, &(cfg.hdr))) {
+        std::cout << "ERROR: flow add failed" << std::endl;
+        return Status(grpc::StatusCode::INTERNAL, "flow add failed");
+    }
+
+    return Status::OK;
+}
+
+Status SchedAdd_(int intf_id, int onu_id, int agg_port_id) {
+    bcmbal_tm_sched_cfg cfg;
+    bcmbal_tm_sched_key key = { };
+    bcmbal_tm_sched_type sched_type;
+
+    key.id = mk_sched_id(onu_id);
+    key.dir = BCMBAL_TM_SCHED_DIR_US;
+
+    BCMBAL_CFG_INIT(&cfg, tm_sched, key);
+
+    {
+        bcmbal_tm_sched_owner val = { };
+
+        val.type = BCMBAL_TM_SCHED_OWNER_TYPE_AGG_PORT;
+        val.u.agg_port.intf_id = (bcmbal_intf_id) intf_id;
+	val.u.agg_port.presence_mask = val.u.agg_port.presence_mask | BCMBAL_TM_SCHED_OWNER_AGG_PORT_ID_INTF_ID;
+        val.u.agg_port.sub_term_id = (bcmbal_sub_id) onu_id;
+        val.u.agg_port.presence_mask = val.u.agg_port.presence_mask | BCMBAL_TM_SCHED_OWNER_AGG_PORT_ID_SUB_TERM_ID;
+
+	val.u.agg_port.agg_port_id = (bcmbal_aggregation_port_id) agg_port_id;
+	val.u.agg_port.presence_mask = val.u.agg_port.presence_mask | BCMBAL_TM_SCHED_OWNER_AGG_PORT_ID_AGG_PORT_ID;
+
+        BCMBAL_CFG_PROP_SET(&cfg, tm_sched, owner, val);
+    }
+
+    if (bcmbal_cfg_set(DEFAULT_ATERM_ID, &(cfg.hdr))) {
+        std::cout << "ERROR: Failed to create upstream DBA sched"
+                  << " id:" << key.id
+                  << " intf_id:" << intf_id
+                  << " onu_id:" << onu_id << std::endl;
+        return Status(grpc::StatusCode::INTERNAL, "Failed to create upstream DBA sched");
+        //return 1;
+    }
+    std::cout << "create upstream DBA sched"
+              << " id:" << key.id
+              << " intf_id:" << intf_id
+              << " onu_id:" << onu_id << std::endl;
+
+    return Status::OK;
+    //return 0;
+}
diff --git a/src/server.h b/src/server.h
new file mode 100644
index 0000000..6e73d47
--- /dev/null
+++ b/src/server.h
@@ -0,0 +1,48 @@
+/*
+    Copyright (C) 2018 Open Networking Foundation 
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef OPENASF_SERVER_H_
+#define OPENASF_SERVER_H_
+
+#include <grpc++/grpc++.h>
+using grpc::Status;
+#include <openolt.grpc.pb.h>
+
+void RunServer();
+Status Enable_();
+Status ActivateOnu_(uint32_t intf_id, uint32_t onu_id,
+    const char *vendor_id, const char *vendor_specific);
+Status EnablePonIf_(uint32_t intf_id);
+Status OmciMsgOut_(uint32_t intf_id, uint32_t onu_id, const std::string pkt);
+Status FlowAdd_(uint32_t onu_id,
+                uint32_t flow_id, const std::string flow_type,
+                uint32_t access_intf_id, uint32_t network_intf_id,
+                uint32_t gemport_id,
+                const ::openolt::Classifier& classifier,
+                const ::openolt::Action& action);
+
+static Status SchedAdd_(int intf_id, int onu_id, int agg_port_id);
+
+static inline int mk_sched_id(int onu_id) {
+    return 1023 + onu_id;
+}
+
+static inline int mk_agg_port_id(int onu_id) {
+    return 1023 + onu_id;
+}
+
+#endif
diff --git a/src/server.o b/src/server.o
new file mode 100644
index 0000000..a814ddc
--- /dev/null
+++ b/src/server.o
Binary files differ
diff --git a/src/utils.cc b/src/utils.cc
new file mode 100644
index 0000000..9610cdc
--- /dev/null
+++ b/src/utils.cc
@@ -0,0 +1,40 @@
+/*
+    Copyright (C) 2018 Open Networking Foundation 
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "utils.h"
+
+// NOTE - This function is not thread-safe.
+const char* serial_number_to_str(bcmbal_serial_number* serial_number) {
+#define SERIAL_NUMBER_SIZE 12
+    static char buff[SERIAL_NUMBER_SIZE+1];
+
+    sprintf(buff, "%c%c%c%c%1X%1X%1X%1X%1X%1X%1X%1X",
+            serial_number->vendor_id[0],
+            serial_number->vendor_id[1],
+            serial_number->vendor_id[2],
+            serial_number->vendor_id[3],
+            serial_number->vendor_specific[0]>>4 & 0x0f,
+            serial_number->vendor_specific[0] & 0x0f,
+            serial_number->vendor_specific[1]>>4 & 0x0f,
+            serial_number->vendor_specific[1] & 0x0f,
+            serial_number->vendor_specific[2]>>4 & 0x0f,
+            serial_number->vendor_specific[2] & 0x0f,
+            serial_number->vendor_specific[3]>>4 & 0x0f,
+            serial_number->vendor_specific[3] & 0x0f);
+
+    return buff;
+}
diff --git a/src/utils.h b/src/utils.h
new file mode 100644
index 0000000..a79bd55
--- /dev/null
+++ b/src/utils.h
@@ -0,0 +1,30 @@
+/*
+    Copyright (C) 2018 Open Networking Foundation
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef OPENASF_UTILS_H_
+#define OPENASF_UTILS_H_
+
+extern "C"
+{
+#include <bcmos_system.h>
+#include <bal_api.h>
+#include <bal_api_end.h>
+}
+
+const char* serial_number_to_str(bcmbal_serial_number* serial_number);
+
+#endif
diff --git a/src/utils.o b/src/utils.o
new file mode 100644
index 0000000..323222c
--- /dev/null
+++ b/src/utils.o
Binary files differ