isolate structure use in policy util from HLB

12 files changed, 3459 insertions, 987 deletions

diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index c0f6ca9..4429b0b 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -39,7 +39,7 @@ PKG_CHECK_MODULES(GLIB_PKG REQUIRED glib-2.0)
 PROJECT_TARGET_ADD(audiohighlevel)
 
     # Define project Targets
-    ADD_LIBRARY(${TARGET_NAME} MODULE ahl-binding.c  ahl-deviceenum.c ahl-config.c ahl-policy.c)
+    ADD_LIBRARY(${TARGET_NAME} MODULE ahl-binding.c ahl-deviceenum.c ahl-config.c ahl-policy-utils.c ahl-policy.c)
 
     # Generate API-v2 hat from OpenAPI json definition
     SET_TARGET_GENSKEL(${TARGET_NAME} ahl-apidef)
diff --git a/src/ahl-apidef.h b/src/ahl-apidef.h
index 9a39470..fd957ce 100644
--- a/src/ahl-apidef.h
+++ b/src/ahl-apidef.h
@@ -1,139 +1,155 @@
 
 static const char _afb_description_v2_audiohl[] =
-    "{\"openapi\":\"3.0.0\",\"$schema\":\"http:iot.bzh/download/openapi/schem"
-    "a-3.0/default-schema.json\",\"info\":{\"description\":\"Audio high level"
-    " API for AGL applications\",\"title\":\"audiohighlevel\",\"version\":\"1"
-    ".0\",\"x-binding-c-generator\":{\"api\":\"audiohl\",\"version\":2,\"pref"
-    "ix\":\"audiohlapi_\",\"postfix\":\"\",\"start\":null,\"onevent\":null,\""
-    "init\":\"AhlBindingInit\",\"scope\":\"\",\"private\":false}},\"servers\""
-    ":[{\"url\":\"ws://{host}:{port}/api/audiohl\",\"description\":\"Audio hi"
-    "gh level API for AGL applications.\",\"variables\":{\"host\":{\"default\""
-    ":\"localhost\"},\"port\":{\"default\":\"1234\"}},\"x-afb-events\":[{\"$r"
-    "ef\":\"#/components/schemas/afb-event\"}]}],\"components\":{\"schemas\":"
-    "{\"afb-reply\":{\"$ref\":\"#/components/schemas/afb-reply-v2\"},\"afb-ev"
-    "ent\":{\"$ref\":\"#/components/schemas/afb-event-v2\"},\"afb-reply-v2\":"
-    "{\"title\":\"Generic response.\",\"type\":\"object\",\"required\":[\"jty"
-    "pe\",\"request\"],\"properties\":{\"jtype\":{\"type\":\"string\",\"const"
-    "\":\"afb-reply\"},\"request\":{\"type\":\"object\",\"required\":[\"statu"
-    "s\"],\"properties\":{\"status\":{\"type\":\"string\"},\"info\":{\"type\""
-    ":\"string\"},\"token\":{\"type\":\"string\"},\"uuid\":{\"type\":\"string"
-    "\"},\"reqid\":{\"type\":\"string\"}}},\"response\":{\"type\":\"object\"}"
-    "}},\"afb-event-v2\":{\"type\":\"object\",\"required\":[\"jtype\",\"event"
-    "\"],\"properties\":{\"jtype\":{\"type\":\"string\",\"const\":\"afb-event"
-    "\"},\"event\":{\"type\":\"string\"},\"data\":{\"type\":\"object\"}}},\"e"
-    "ndpoint_info\":{\"type\":\"object\",\"required\":[\"endpoint_id\",\"type"
-    "\",\"device_name\",\"device_uri\"],\"properties\":{\"endpoint_id\":{\"ty"
-    "pe\":\"int\"},\"type\":{\"type\":\"enum\"},\"device_name\":{\"type\":\"s"
-    "tring\"},\"device_uri_type\":{\"type\":\"string\"}}},\"stream_info\":{\""
-    "type\":\"object\",\"required\":[\"stream_id\",\"endpoint_info\"],\"prope"
-    "rties\":{\"stream_id\":{\"type\":\"int\"},\"$ref\":\"#/components/schema"
-    "s/endpoint_info\"}}},\"x-permissions\":{\"streamcontrol\":{\"permission\""
-    ":\"urn:AGL:permission:audio:public:streamcontrol\"},\"routingcontrol\":{"
-    "\"permission\":\"urn:AGL:permission:audio:public:routingcontrol\"},\"sou"
-    "ndevent\":{\"permission\":\"urn:AGL:permission:audio:public:soundevent\""
-    "}},\"responses\":{\"200\":{\"description\":\"A complex object array resp"
-    "onse\",\"content\":{\"application/json\":{\"schema\":{\"$ref\":\"#/compo"
-    "nents/schemas/afb-reply\"}}}},\"400\":{\"description\":\"Invalid argumen"
-    "ts\"}}},\"paths\":{\"/get_sources\":{\"description\":\"Retrieve array of"
-    " available audio sources\",\"get\":{\"parameters\":[{\"in\":\"query\",\""
-    "name\":\"audio_role\",\"required\":true,\"schema\":{\"type\":\"string\"}"
-    "}],\"responses\":{\"200\":{\"$ref\":\"#/components/responses/200\",\"res"
-    "ponse\":{\"description\":\"Array of endpoint info structures\",\"type\":"
-    "\"array\",\"items\":{\"$ref\":\"#/components/schemas/endpoint_info\"}}},"
-    "\"400\":{\"$ref\":\"#/components/responses/400\"}}}},\"/get_sinks\":{\"d"
-    "escription\":\"Retrieve array of available audio sinks\",\"get\":{\"para"
-    "meters\":[{\"in\":\"query\",\"name\":\"audio_role\",\"required\":true,\""
-    "schema\":{\"type\":\"string\"}}],\"responses\":{\"200\":{\"$ref\":\"#/co"
-    "mponents/responses/200\",\"response\":{\"description\":\"Array of endpoi"
-    "nt info structures\",\"type\":\"array\",\"items\":{\"$ref\":\"#/componen"
-    "ts/schemas/endpoint_info\"}}},\"400\":{\"$ref\":\"#/components/responses"
-    "/400\"}}}},\"/stream_open\":{\"description\":\"Request opening a stream\""
-    ",\"get\":{\"x-permissions\":{\"$ref\":\"#/components/x-permissions/strea"
-    "mcontrol\"},\"parameters\":[{\"in\":\"query\",\"name\":\"audio_role\",\""
-    "required\":true,\"schema\":{\"type\":\"string\"}},{\"in\":\"query\",\"na"
-    "me\":\"endpoint_type\",\"required\":true,\"schema\":{\"type\":\"enum\"}}"
-    ",{\"in\":\"query\",\"name\":\"endpoint_id\",\"required\":false,\"schema\""
-    ":{\"type\":\"int\"}}],\"responses\":{\"200\":{\"$ref\":\"#/components/re"
-    "sponses/200\",\"response\":{\"description\":\"Stream information structu"
-    "re\",\"$ref\":\"#/components/schemas/stream_info\"}},\"400\":{\"$ref\":\""
-    "#/components/responses/400\"}}}},\"/stream_close\":{\"description\":\"Re"
-    "quest closing a stream\",\"get\":{\"x-permissions\":{\"$ref\":\"#/compon"
-    "ents/x-permissions/streamcontrol\"},\"parameters\":[{\"in\":\"query\",\""
-    "name\":\"stream_id\",\"required\":true,\"schema\":{\"type\":\"int\"}}],\""
-    "responses\":{\"200\":{\"$ref\":\"#/components/responses/200\"},\"400\":{"
-    "\"$ref\":\"#/components/responses/400\"}}}},\"/set_volume\":{\"descripti"
-    "on\":\"Set volume\",\"get\":{\"x-permissions\":{\"$ref\":\"#/components/"
-    "x-permissions/streamcontrol\"},\"parameters\":[{\"in\":\"query\",\"name\""
-    ":\"endpoint_type\",\"required\":true,\"schema\":{\"type\":\"enum\"}},{\""
-    "in\":\"query\",\"name\":\"endpoint_id\",\"required\":true,\"schema\":{\""
-    "type\":\"int\"}},{\"in\":\"query\",\"name\":\"volume\",\"required\":true"
-    ",\"schema\":{\"type\":\"string\"}},{\"in\":\"query\",\"name\":\"ramp_tim"
-    "e_ms\",\"required\":false,\"schema\":{\"type\":\"int\"}}],\"responses\":"
-    "{\"200\":{\"$ref\":\"#/components/responses/200\"},\"400\":{\"$ref\":\"#"
-    "/components/responses/400\"}}}},\"/get_volume\":{\"description\":\"Get v"
-    "olume\",\"get\":{\"parameters\":[{\"in\":\"query\",\"name\":\"endpoint_t"
-    "ype\",\"required\":true,\"schema\":{\"type\":\"enum\"}},{\"in\":\"query\""
-    ",\"name\":\"endpoint_id\",\"required\":true,\"schema\":{\"type\":\"int\""
+    "{\"openapi\":\"3.0.0\",\"info\":{\"description\":\"Audio high level API "
+    "for AGL applications\",\"title\":\"audiohighlevel\",\"version\":\"1.0\","
+    "\"x-binding-c-generator\":{\"api\":\"audiohl\",\"version\":2,\"prefix\":"
+    "\"audiohlapi_\",\"postfix\":\"\",\"start\":null,\"onevent\":\"AhlOnEvent"
+    "\",\"init\":\"AhlBindingInit\",\"scope\":\"\",\"private\":false}},\"serv"
+    "ers\":[{\"url\":\"ws://{host}:{port}/api/audiohl\",\"description\":\"Aud"
+    "io high level API for AGL applications.\",\"variables\":{\"host\":{\"def"
+    "ault\":\"localhost\"},\"port\":{\"default\":\"1234\"}},\"x-afb-events\":"
+    "[{\"$ref\":\"#/components/schemas/afb-event\"}]}],\"components\":{\"sche"
+    "mas\":{\"afb-reply\":{\"$ref\":\"#/components/schemas/afb-reply-v2\"},\""
+    "afb-event\":{\"$ref\":\"#/components/schemas/afb-event-v2\"},\"afb-reply"
+    "-v2\":{\"title\":\"Generic response.\",\"type\":\"object\",\"required\":"
+    "[\"jtype\",\"request\"],\"properties\":{\"jtype\":{\"type\":\"string\",\""
+    "const\":\"afb-reply\"},\"request\":{\"type\":\"object\",\"required\":[\""
+    "status\"],\"properties\":{\"status\":{\"type\":\"string\"},\"info\":{\"t"
+    "ype\":\"string\"},\"token\":{\"type\":\"string\"},\"uuid\":{\"type\":\"s"
+    "tring\"},\"reqid\":{\"type\":\"string\"}}},\"response\":{\"type\":\"obje"
+    "ct\"}}},\"afb-event-v2\":{\"type\":\"object\",\"required\":[\"jtype\",\""
+    "event\"],\"properties\":{\"jtype\":{\"type\":\"string\",\"const\":\"afb-"
+    "event\"},\"event\":{\"type\":\"string\"},\"data\":{\"type\":\"object\"}}"
+    "},\"endpoint_info\":{\"type\":\"object\",\"required\":[\"endpoint_id\",\""
+    "type\",\"device_name\",\"device_uri\"],\"properties\":{\"endpoint_id\":{"
+    "\"type\":\"int\"},\"type\":{\"type\":\"enum\"},\"device_name\":{\"type\""
+    ":\"string\"},\"device_uri_type\":{\"type\":\"string\"}}},\"stream_info\""
+    ":{\"type\":\"object\",\"required\":[\"stream_id\",\"state\",\"mute\",\"e"
+    "ndpoint_info\"],\"properties\":{\"stream_id\":{\"type\":\"int\"},\"state"
+    "\":{\"type\":\"int\"},\"mute\":{\"type\":\"int\"},\"device_uri\":{\"type"
+    "\":\"string\"},\"$ref\":\"#/components/schemas/endpoint_info\"}}},\"x-pe"
+    "rmissions\":{\"streamcontrol\":{\"permission\":\"urn:AGL:permission:audi"
+    "o:public:streamcontrol\"},\"endpointcontrol\":{\"permission\":\"urn:AGL:"
+    "permission:audio:public:endpointcontrol\"},\"audiostream\":{\"permission"
+    "\":\"urn:AGL:permission:audio:public:audiostream\"},\"soundevent\":{\"pe"
+    "rmission\":\"urn:AGL:permission:audio:public:soundevent\"}},\"responses\""
+    ":{\"200\":{\"description\":\"A complex object array response\",\"content"
+    "\":{\"application/json\":{\"schema\":{\"$ref\":\"#/components/schemas/af"
+    "b-reply\"}}}},\"400\":{\"description\":\"Invalid arguments\"}}},\"paths\""
+    ":{\"/get_sources\":{\"description\":\"Retrieve array of available audio "
+    "sources\",\"get\":{\"parameters\":[{\"in\":\"query\",\"name\":\"audio_ro"
+    "le\",\"required\":true,\"schema\":{\"type\":\"string\"}}],\"responses\":"
+    "{\"200\":{\"$ref\":\"#/components/responses/200\",\"response\":{\"descri"
+    "ption\":\"Array of endpoint info structures\",\"type\":\"array\",\"items"
+    "\":{\"$ref\":\"#/components/schemas/endpoint_info\"}}},\"400\":{\"$ref\""
+    ":\"#/components/responses/400\"}}}},\"/get_sinks\":{\"description\":\"Re"
+    "trieve array of available audio sinks\",\"get\":{\"parameters\":[{\"in\""
+    ":\"query\",\"name\":\"audio_role\",\"required\":true,\"schema\":{\"type\""
+    ":\"string\"}}],\"responses\":{\"200\":{\"$ref\":\"#/components/responses"
+    "/200\",\"response\":{\"description\":\"Array of endpoint info structures"
+    "\",\"type\":\"array\",\"items\":{\"$ref\":\"#/components/schemas/endpoin"
+    "t_info\"}}},\"400\":{\"$ref\":\"#/components/responses/400\"}}}},\"/stre"
+    "am_open\":{\"description\":\"Request opening a stream\",\"get\":{\"x-per"
+    "missions\":{\"$ref\":\"#/components/x-permissions/audiostream\"},\"param"
+    "eters\":[{\"in\":\"query\",\"name\":\"audio_role\",\"required\":true,\"s"
+    "chema\":{\"type\":\"string\"}},{\"in\":\"query\",\"name\":\"endpoint_typ"
+    "e\",\"required\":true,\"schema\":{\"type\":\"enum\"}},{\"in\":\"query\","
+    "\"name\":\"endpoint_id\",\"required\":false,\"schema\":{\"type\":\"int\""
     "}}],\"responses\":{\"200\":{\"$ref\":\"#/components/responses/200\",\"re"
-    "sponse\":{\"description\":\"Endpoint volume value\",\"type\":\"double\"}"
-    "},\"400\":{\"$ref\":\"#/components/responses/400\"}}}},\"/set_property\""
-    ":{\"description\":\"Set property value\",\"get\":{\"x-permissions\":{\"$"
-    "ref\":\"#/components/x-permissions/streamcontrol\"},\"parameters\":[{\"i"
-    "n\":\"query\",\"name\":\"endpoint_type\",\"required\":true,\"schema\":{\""
-    "type\":\"enum\"}},{\"in\":\"query\",\"name\":\"endpoint_id\",\"required\""
-    ":false,\"schema\":{\"type\":\"int\"}},{\"in\":\"query\",\"name\":\"prope"
-    "rty_name\",\"required\":true,\"schema\":{\"type\":\"string\"}},{\"in\":\""
-    "query\",\"name\":\"value\",\"required\":true,\"schema\":{\"type\":\"stri"
-    "ng\"}},{\"in\":\"query\",\"name\":\"ramp_time_ms\",\"required\":false,\""
-    "schema\":{\"type\":\"int\"}}],\"responses\":{\"200\":{\"$ref\":\"#/compo"
-    "nents/responses/200\"},\"400\":{\"$ref\":\"#/components/responses/400\"}"
-    "}}},\"/get_property\":{\"description\":\"Get property value\",\"get\":{\""
-    "parameters\":[{\"in\":\"query\",\"name\":\"endpoint_type\",\"required\":"
-    "true,\"schema\":{\"type\":\"enum\"}},{\"in\":\"query\",\"name\":\"endpoi"
-    "nt_id\",\"required\":false,\"schema\":{\"type\":\"int\"}},{\"in\":\"quer"
-    "y\",\"name\":\"property_name\",\"required\":true,\"schema\":{\"type\":\""
-    "string\"}}],\"responses\":{\"200\":{\"$ref\":\"#/components/responses/20"
-    "0\",\"response\":{\"description\":\"Property value\",\"type\":\"double\""
-    "}},\"400\":{\"$ref\":\"#/components/responses/400\"}}}},\"/set_state\":{"
-    "\"description\":\"Set state\",\"get\":{\"x-permissions\":{\"$ref\":\"#/c"
-    "omponents/x-permissions/streamcontrol\"},\"parameters\":[{\"in\":\"query"
-    "\",\"name\":\"endpoint_type\",\"required\":true,\"schema\":{\"type\":\"e"
-    "num\"}},{\"in\":\"query\",\"name\":\"endpoint_id\",\"required\":true,\"s"
-    "chema\":{\"type\":\"int\"}},{\"in\":\"query\",\"name\":\"state_name\",\""
-    "required\":true,\"schema\":{\"type\":\"string\"}},{\"in\":\"query\",\"na"
-    "me\":\"state_value\",\"required\":true,\"schema\":{\"type\":\"string\"}}"
+    "sponse\":{\"description\":\"Stream information structure\",\"$ref\":\"#/"
+    "components/schemas/stream_info\"}},\"400\":{\"$ref\":\"#/components/resp"
+    "onses/400\"}}}},\"/stream_close\":{\"description\":\"Request closing a s"
+    "tream\",\"get\":{\"x-permissions\":{\"$ref\":\"#/components/x-permission"
+    "s/audiostream\"},\"parameters\":[{\"in\":\"query\",\"name\":\"stream_id\""
+    ",\"required\":true,\"schema\":{\"type\":\"int\"}}],\"responses\":{\"200\""
+    ":{\"$ref\":\"#/components/responses/200\"},\"400\":{\"$ref\":\"#/compone"
+    "nts/responses/400\"}}}},\"/set_stream_state\":{\"description\":\"Change "
+    "stream active state\",\"get\":{\"x-permissions\":{\"$ref\":\"#/component"
+    "s/x-permissions/streamcontrol\"},\"parameters\":[{\"in\":\"query\",\"nam"
+    "e\":\"stream_id\",\"required\":true,\"schema\":{\"type\":\"int\"}},{\"in"
+    "\":\"query\",\"name\":\"state\",\"required\":true,\"schema\":{\"type\":\""
+    "int\"}}],\"responses\":{\"200\":{\"$ref\":\"#/components/responses/200\""
+    "},\"400\":{\"$ref\":\"#/components/responses/400\"}}}},\"/set_stream_mut"
+    "e\":{\"description\":\"Change stream mute state\",\"get\":{\"x-permissio"
+    "ns\":{\"$ref\":\"#/components/x-permissions/streamcontrol\"},\"parameter"
+    "s\":[{\"in\":\"query\",\"name\":\"stream_id\",\"required\":true,\"schema"
+    "\":{\"type\":\"int\"}},{\"in\":\"query\",\"name\":\"mute\",\"required\":"
+    "true,\"schema\":{\"type\":\"int\"}}],\"responses\":{\"200\":{\"$ref\":\""
+    "#/components/responses/200\"},\"400\":{\"$ref\":\"#/components/responses"
+    "/400\"}}}},\"/get_stream_info\":{\"description\":\"Retrieve stream infor"
+    "mation\",\"get\":{\"parameters\":[{\"in\":\"query\",\"name\":\"stream_id"
+    "\",\"required\":true,\"schema\":{\"type\":\"int\"}}],\"responses\":{\"20"
+    "0\":{\"$ref\":\"#/components/responses/200\",\"response\":{\"description"
+    "\":\"Stream information structure\",\"$ref\":\"#/components/schemas/stre"
+    "am_info\"}},\"400\":{\"$ref\":\"#/components/responses/400\"}}}},\"/set_"
+    "volume\":{\"description\":\"Set volume on endpoint\",\"get\":{\"x-permis"
+    "sions\":{\"$ref\":\"#/components/x-permissions/endpointcontrol\"},\"para"
+    "meters\":[{\"in\":\"query\",\"name\":\"endpoint_type\",\"required\":true"
+    ",\"schema\":{\"type\":\"enum\"}},{\"in\":\"query\",\"name\":\"endpoint_i"
+    "d\",\"required\":true,\"schema\":{\"type\":\"int\"}},{\"in\":\"query\",\""
+    "name\":\"volume\",\"required\":true,\"schema\":{\"type\":\"string\"}}],\""
+    "responses\":{\"200\":{\"$ref\":\"#/components/responses/200\"},\"400\":{"
+    "\"$ref\":\"#/components/responses/400\"}}}},\"/get_volume\":{\"descripti"
+    "on\":\"Get endpoint volume\",\"get\":{\"parameters\":[{\"in\":\"query\","
+    "\"name\":\"endpoint_type\",\"required\":true,\"schema\":{\"type\":\"enum"
+    "\"}},{\"in\":\"query\",\"name\":\"endpoint_id\",\"required\":true,\"sche"
+    "ma\":{\"type\":\"int\"}}],\"responses\":{\"200\":{\"$ref\":\"#/component"
+    "s/responses/200\",\"response\":{\"description\":\"Endpoint volume value\""
+    ",\"type\":\"double\"}},\"400\":{\"$ref\":\"#/components/responses/400\"}"
+    "}}},\"/get_endpoint_info\":{\"description\":\"Retrieve endpoint informat"
+    "ion including its properties\",\"get\":{\"parameters\":[{\"in\":\"query\""
+    ",\"name\":\"endpoint_type\",\"required\":true,\"schema\":{\"type\":\"enu"
+    "m\"}},{\"in\":\"query\",\"name\":\"endpoint_id\",\"required\":false,\"sc"
+    "hema\":{\"type\":\"int\"}}],\"responses\":{\"200\":{\"$ref\":\"#/compone"
+    "nts/responses/200\"},\"400\":{\"$ref\":\"#/components/responses/400\"}}}"
+    "},\"/set_property\":{\"description\":\"Set endpoint property value\",\"g"
+    "et\":{\"x-permissions\":{\"$ref\":\"#/components/x-permissions/endpointc"
+    "ontrol\"},\"parameters\":[{\"in\":\"query\",\"name\":\"endpoint_type\",\""
+    "required\":true,\"schema\":{\"type\":\"enum\"}},{\"in\":\"query\",\"name"
+    "\":\"endpoint_id\",\"required\":false,\"schema\":{\"type\":\"int\"}},{\""
+    "in\":\"query\",\"name\":\"property_name\",\"required\":true,\"schema\":{"
+    "\"type\":\"string\"}},{\"in\":\"query\",\"name\":\"value\",\"required\":"
+    "true,\"schema\":{\"type\":\"string\"}}],\"responses\":{\"200\":{\"$ref\""
+    ":\"#/components/responses/200\"},\"400\":{\"$ref\":\"#/components/respon"
+    "ses/400\"}}}},\"/get_property\":{\"description\":\"Get endpoint property"
+    " value\",\"get\":{\"parameters\":[{\"in\":\"query\",\"name\":\"endpoint_"
+    "type\",\"required\":true,\"schema\":{\"type\":\"enum\"}},{\"in\":\"query"
+    "\",\"name\":\"endpoint_id\",\"required\":false,\"schema\":{\"type\":\"in"
+    "t\"}},{\"in\":\"query\",\"name\":\"property_name\",\"required\":true,\"s"
+    "chema\":{\"type\":\"string\"}}],\"responses\":{\"200\":{\"$ref\":\"#/com"
+    "ponents/responses/200\",\"response\":{\"description\":\"Property value\""
+    ",\"type\":\"double\"}},\"400\":{\"$ref\":\"#/components/responses/400\"}"
+    "}}},\"/get_list_actions\":{\"description\":\"Retrieve a list of supporte"
+    "d actions for a particular audio role\",\"get\":{\"parameters\":[{\"in\""
+    ":\"query\",\"name\":\"audio_role\",\"required\":true,\"schema\":{\"type\""
+    ":\"string\"}}],\"responses\":{\"200\":{\"$ref\":\"#/components/responses"
+    "/200\"},\"400\":{\"$ref\":\"#/components/responses/400\"}}}},\"/post_act"
+    "ion\":{\"description\":\"Post sound or audio device related action event"
+    " (extendable mechanism)\",\"get\":{\"x-permissions\":{\"$ref\":\"#/compo"
+    "nents/x-permissions/soundevent\"},\"parameters\":[{\"in\":\"query\",\"na"
+    "me\":\"action_name\",\"required\":true,\"schema\":{\"type\":\"string\"}}"
+    ",{\"in\":\"query\",\"name\":\"audio_role\",\"required\":true,\"schema\":"
+    "{\"type\":\"string\"}},{\"in\":\"query\",\"name\":\"media_name\",\"requi"
+    "red\":false,\"schema\":{\"type\":\"string\"}},{\"in\":\"query\",\"name\""
+    ":\"action_context\",\"required\":false,\"schema\":{\"type\":\"object\"}}"
     "],\"responses\":{\"200\":{\"$ref\":\"#/components/responses/200\"},\"400"
-    "\":{\"$ref\":\"#/components/responses/400\"}}}},\"/get_state\":{\"descri"
-    "ption\":\"Get state value\",\"get\":{\"parameters\":[{\"in\":\"query\",\""
-    "name\":\"endpoint_type\",\"required\":true,\"schema\":{\"type\":\"enum\""
-    "}},{\"in\":\"query\",\"name\":\"endpoint_id\",\"required\":true,\"schema"
-    "\":{\"type\":\"int\"}},{\"in\":\"query\",\"name\":\"state_name\",\"requi"
-    "red\":true,\"schema\":{\"type\":\"string\"}}],\"responses\":{\"200\":{\""
-    "$ref\":\"#/components/responses/200\",\"response\":{\"description\":\"En"
-    "dpoint state value\",\"type\":\"string\"}},\"400\":{\"$ref\":\"#/compone"
-    "nts/responses/400\"}}}},\"/post_sound_event\":{\"description\":\"Post so"
-    "und event\",\"get\":{\"x-permissions\":{\"$ref\":\"#/components/x-permis"
-    "sions/soundevent\"},\"parameters\":[{\"in\":\"query\",\"name\":\"event_n"
-    "ame\",\"required\":true,\"schema\":{\"type\":\"string\"}},{\"in\":\"quer"
-    "y\",\"name\":\"audio_role\",\"required\":true,\"schema\":{\"type\":\"str"
-    "ing\"}},{\"in\":\"query\",\"name\":\"media_name\",\"required\":false,\"s"
-    "chema\":{\"type\":\"string\"}},{\"in\":\"query\",\"name\":\"audio_contex"
-    "t\",\"required\":false,\"schema\":{\"type\":\"object\"}}],\"responses\":"
-    "{\"200\":{\"$ref\":\"#/components/responses/200\"},\"400\":{\"$ref\":\"#"
-    "/components/responses/400\"}}}},\"/subscribe\":{\"description\":\"Subscr"
-    "ibe to audio high level events\",\"get\":{\"parameters\":[{\"in\":\"quer"
-    "y\",\"name\":\"events\",\"required\":true,\"schema\":{\"type\":\"array\""
-    ",\"items\":{\"type\":\"string\"}}}],\"responses\":{\"200\":{\"$ref\":\"#"
-    "/components/responses/200\"},\"400\":{\"$ref\":\"#/components/responses/"
-    "400\"}}}},\"/unsubscribe\":{\"description\":\"Unubscribe to audio high l"
-    "evel events\",\"get\":{\"parameters\":[{\"in\":\"query\",\"name\":\"even"
-    "ts\",\"required\":true,\"schema\":{\"type\":\"array\",\"items\":{\"type\""
-    ":\"string\"}}}],\"responses\":{\"200\":{\"$ref\":\"#/components/response"
-    "s/200\"},\"400\":{\"$ref\":\"#/components/responses/400\"}}}}}}"
+    "\":{\"$ref\":\"#/components/responses/400\"}}}},\"/subscribe\":{\"descri"
+    "ption\":\"Subscribe to audio high level events\",\"get\":{\"parameters\""
+    ":[{\"in\":\"query\",\"name\":\"events\",\"required\":true,\"schema\":{\""
+    "type\":\"array\",\"items\":{\"type\":\"string\"}}}],\"responses\":{\"200"
+    "\":{\"$ref\":\"#/components/responses/200\"},\"400\":{\"$ref\":\"#/compo"
+    "nents/responses/400\"}}}},\"/unsubscribe\":{\"description\":\"Unubscribe"
+    " to audio high level events\",\"get\":{\"parameters\":[{\"in\":\"query\""
+    ",\"name\":\"events\",\"required\":true,\"schema\":{\"type\":\"array\",\""
+    "items\":{\"type\":\"string\"}}}],\"responses\":{\"200\":{\"$ref\":\"#/co"
+    "mponents/responses/200\"},\"400\":{\"$ref\":\"#/components/responses/400"
+    "\"}}}}}}"
 ;
 
 static const struct afb_auth _afb_auths_v2_audiohl[] = {
+	{ .type = afb_auth_Permission, .text = "urn:AGL:permission:audio:public:audiostream" },
 	{ .type = afb_auth_Permission, .text = "urn:AGL:permission:audio:public:streamcontrol" },
+	{ .type = afb_auth_Permission, .text = "urn:AGL:permission:audio:public:endpointcontrol" },
 	{ .type = afb_auth_Permission, .text = "urn:AGL:permission:audio:public:soundevent" }
 };
 
@@ -141,13 +157,16 @@ static const struct afb_auth _afb_auths_v2_audiohl[] = {
  void audiohlapi_get_sinks(struct afb_req req);
  void audiohlapi_stream_open(struct afb_req req);
  void audiohlapi_stream_close(struct afb_req req);
+ void audiohlapi_set_stream_state(struct afb_req req);
+ void audiohlapi_set_stream_mute(struct afb_req req);
+ void audiohlapi_get_stream_info(struct afb_req req);
  void audiohlapi_set_volume(struct afb_req req);
  void audiohlapi_get_volume(struct afb_req req);
+ void audiohlapi_get_endpoint_info(struct afb_req req);
  void audiohlapi_set_property(struct afb_req req);
  void audiohlapi_get_property(struct afb_req req);
- void audiohlapi_set_state(struct afb_req req);
- void audiohlapi_get_state(struct afb_req req);
- void audiohlapi_post_sound_event(struct afb_req req);
+ void audiohlapi_get_list_actions(struct afb_req req);
+ void audiohlapi_post_action(struct afb_req req);
  void audiohlapi_subscribe(struct afb_req req);
  void audiohlapi_unsubscribe(struct afb_req req);
 
@@ -181,52 +200,73 @@ static const struct afb_verb_v2 _afb_verbs_v2_audiohl[] = {
         .session = AFB_SESSION_NONE_V2
     },
     {
+        .verb = "set_stream_state",
+        .callback = audiohlapi_set_stream_state,
+        .auth = &_afb_auths_v2_audiohl[1],
+        .info = "Change stream active state",
+        .session = AFB_SESSION_NONE_V2
+    },
+    {
+        .verb = "set_stream_mute",
+        .callback = audiohlapi_set_stream_mute,
+        .auth = &_afb_auths_v2_audiohl[1],
+        .info = "Change stream mute state",
+        .session = AFB_SESSION_NONE_V2
+    },
+    {
+        .verb = "get_stream_info",
+        .callback = audiohlapi_get_stream_info,
+        .auth = NULL,
+        .info = "Retrieve stream information",
+        .session = AFB_SESSION_NONE_V2
+    },
+    {
         .verb = "set_volume",
         .callback = audiohlapi_set_volume,
-        .auth = &_afb_auths_v2_audiohl[0],
-        .info = "Set volume",
+        .auth = &_afb_auths_v2_audiohl[2],
+        .info = "Set volume on endpoint",
         .session = AFB_SESSION_NONE_V2
     },
     {
         .verb = "get_volume",
         .callback = audiohlapi_get_volume,
         .auth = NULL,
-        .info = "Get volume",
+        .info = "Get endpoint volume",
+        .session = AFB_SESSION_NONE_V2
+    },
+    {
+        .verb = "get_endpoint_info",
+        .callback = audiohlapi_get_endpoint_info,
+        .auth = NULL,
+        .info = "Retrieve endpoint information including its properties",
         .session = AFB_SESSION_NONE_V2
     },
     {
         .verb = "set_property",
         .callback = audiohlapi_set_property,
-        .auth = &_afb_auths_v2_audiohl[0],
-        .info = "Set property value",
+        .auth = &_afb_auths_v2_audiohl[2],
+        .info = "Set endpoint property value",
         .session = AFB_SESSION_NONE_V2
     },
     {
         .verb = "get_property",
         .callback = audiohlapi_get_property,
         .auth = NULL,
-        .info = "Get property value",
-        .session = AFB_SESSION_NONE_V2
-    },
-    {
-        .verb = "set_state",
-        .callback = audiohlapi_set_state,
-        .auth = &_afb_auths_v2_audiohl[0],
-        .info = "Set state",
+        .info = "Get endpoint property value",
         .session = AFB_SESSION_NONE_V2
     },
     {
-        .verb = "get_state",
-        .callback = audiohlapi_get_state,
+        .verb = "get_list_actions",
+        .callback = audiohlapi_get_list_actions,
         .auth = NULL,
-        .info = "Get state value",
+        .info = "Retrieve a list of supported actions for a particular audio role",
         .session = AFB_SESSION_NONE_V2
     },
     {
-        .verb = "post_sound_event",
-        .callback = audiohlapi_post_sound_event,
-        .auth = &_afb_auths_v2_audiohl[1],
-        .info = "Post sound event",
+        .verb = "post_action",
+        .callback = audiohlapi_post_action,
+        .auth = &_afb_auths_v2_audiohl[3],
+        .info = "Post sound or audio device related action event (extendable mechanism)",
         .session = AFB_SESSION_NONE_V2
     },
     {
@@ -259,7 +299,7 @@ const struct afb_binding_v2 afbBindingV2 = {
     .verbs = _afb_verbs_v2_audiohl,
     .preinit = NULL,
     .init = AhlBindingInit,
-    .onevent = NULL,
+    .onevent = AhlOnEvent,
     .noconcurrency = 0
 };
 
diff --git a/src/ahl-apidef.json b/src/ahl-apidef.json
index 45067ea..3ab6f4a 100644
--- a/src/ahl-apidef.json
+++ b/src/ahl-apidef.json
@@ -1,6 +1,5 @@
 {
     "openapi": "3.0.0",
-    "$schema": "http:iot.bzh/download/openapi/schema-3.0/default-schema.json",
     "info": {
         "description": "Audio high level API for AGL applications",
         "title": "audiohighlevel",
@@ -11,7 +10,7 @@
             "prefix": "audiohlapi_",
             "postfix": "",
             "start": null,
-            "onevent": null,
+            "onevent": "AhlOnEvent",
             "init": "AhlBindingInit",
             "scope": "",
             "private": false
@@ -107,23 +106,21 @@
             },
             "stream_info": {
                 "type": "object",
-                "required": [ "stream_id", "endpoint_info" ],
+                "required": [ "stream_id", "state", "mute", "endpoint_info" ],
                 "properties": {
                     "stream_id": { "type": "int" },
+                    "state": { "type": "int" },
+                    "mute": { "type": "int" },
+                    "device_uri": { "type": "string" },
                     "$ref": "#/components/schemas/endpoint_info"
                 }
             }
         },
         "x-permissions": {
-            "streamcontrol": {
-                "permission": "urn:AGL:permission:audio:public:streamcontrol"
-            },
-            "routingcontrol": {
-                "permission": "urn:AGL:permission:audio:public:routingcontrol"
-            },
-            "soundevent": {
-                "permission": "urn:AGL:permission:audio:public:soundevent"
-            }
+            "streamcontrol": { "permission": "urn:AGL:permission:audio:public:streamcontrol"},
+            "endpointcontrol": { "permission": "urn:AGL:permission:audio:public:endpointcontrol"},
+            "audiostream": { "permission": "urn:AGL:permission:audio:public:audiostream"},
+            "soundevent": {"permission": "urn:AGL:permission:audio:public:soundevent"}
         },
         "responses": {
             "200": {
@@ -136,9 +133,7 @@
                     }
                 }
             },
-            "400": {
-                "description": "Invalid arguments"
-            }
+            "400": { "description": "Invalid arguments" }
         }
     },    
     "paths": {
@@ -186,15 +181,14 @@
                             "items": { "$ref": "#/components/schemas/endpoint_info"}
                         }
                     },
-                    "400": {
-                        "$ref": "#/components/responses/400" }
+                    "400": { "$ref": "#/components/responses/400" }
                 }
             }
         },
         "/stream_open": {
             "description": "Request opening a stream",
             "get": {
-                "x-permissions": { "$ref": "#/components/x-permissions/streamcontrol" },
+                "x-permissions": { "$ref": "#/components/x-permissions/audiostream" },
                 "parameters": [
                     {
                         "in": "query",
@@ -230,7 +224,7 @@
         "/stream_close": {
             "description": "Request closing a stream",
             "get": {
-                "x-permissions": { "$ref": "#/components/x-permissions/streamcontrol" },
+                "x-permissions": { "$ref": "#/components/x-permissions/audiostream" },
                 "parameters": [
                     {
                         "in": "query",
@@ -245,34 +239,50 @@
                 }
             }
         },
-        "/set_volume": {
-            "description": "Set volume",
+        "/set_stream_state": {
+            "description": "Change stream active state",
             "get": {
-                "x-permissions": { "$ref": "#/components/x-permissions/streamcontrol" },
+                "x-permissions": {
+                    "$ref": "#/components/x-permissions/streamcontrol"
+                },
                 "parameters": [
                     {
                         "in": "query",
-                        "name": "endpoint_type",
+                        "name": "stream_id",
                         "required": true,
-                        "schema": { "type": "enum" }
+                        "schema": {"type": "int"}
                     },
                     {
                         "in": "query",
-                        "name": "endpoint_id",
+                        "name": "state",
                         "required": true,
-                        "schema": { "type": "int" }
-                    },
+                        "schema": {"type": "int"}
+                    }
+                ],
+                "responses": {
+                    "200": { "$ref": "#/components/responses/200" },
+                    "400": { "$ref": "#/components/responses/400" }
+                }
+            }
+        },
+        "/set_stream_mute": {
+            "description": "Change stream mute state",
+            "get": {
+                "x-permissions": {
+                    "$ref": "#/components/x-permissions/streamcontrol"
+                },
+                "parameters": [
                     {
                         "in": "query",
-                        "name": "volume",
+                        "name": "stream_id",
                         "required": true,
-                        "schema": { "type": "string" }
+                        "schema": {"type": "int"}
                     },
                     {
                         "in": "query",
-                        "name": "ramp_time_ms",
-                        "required": false,
-                        "schema": { "type": "int" }
+                        "name": "mute",
+                        "required": true,
+                        "schema": {"type": "int"}
                     }
                 ],
                 "responses": {
@@ -281,39 +291,33 @@
                 }
             }
         },
-        "/get_volume": {
-            "description": "Get volume",
+        "/get_stream_info": {
+            "description": "Retrieve stream information",
             "get": {
                 "parameters": [
                     {
                         "in": "query",
-                        "name": "endpoint_type",
-                        "required": true,
-                        "schema": { "type": "enum" }
-                    },
-                    {
-                        "in": "query",
-                        "name": "endpoint_id",
+                        "name": "stream_id",
                         "required": true,
-                        "schema": { "type": "int" }
+                        "schema": {"type": "int"}
                     }
                 ],
                 "responses": {
                     "200": {
                         "$ref": "#/components/responses/200",
                         "response": {
-                            "description": "Endpoint volume value",
-                            "type": "double"
+                            "description": "Stream information structure",
+                            "$ref": "#/components/schemas/stream_info"
                         }
                     },
                     "400": { "$ref": "#/components/responses/400" }
                 }
             }
         },
-        "/set_property": {
-            "description": "Set property value",
+        "/set_volume": {
+            "description": "Set volume on endpoint",
             "get": {
-                "x-permissions": { "$ref": "#/components/x-permissions/streamcontrol" },
+                "x-permissions": { "$ref": "#/components/x-permissions/endpointcontrol" },
                 "parameters": [
                     {
                         "in": "query",
@@ -324,26 +328,14 @@
                     {
                         "in": "query",
                         "name": "endpoint_id",
-                        "required": false,
-                        "schema": { "type": "int" }
-                    },
-                    {
-                        "in": "query",
-                        "name": "property_name",
                         "required": true,
-                        "schema": { "type": "string" }
+                        "schema": { "type": "int" }
                     },
                     {
                         "in": "query",
-                        "name": "value",
+                        "name": "volume",
                         "required": true,
                         "schema": { "type": "string" }
-                    },
-                    {
-                        "in": "query",
-                        "name": "ramp_time_ms",
-                        "required": false,
-                        "schema": { "type": "int" }
                     }
                 ],
                 "responses": {
@@ -352,8 +344,8 @@
                 }
             }
         },
-        "/get_property": {
-            "description": "Get property value",
+        "/get_volume": {
+            "description": "Get endpoint volume",
             "get": {
                 "parameters": [
                     {
@@ -365,21 +357,15 @@
                     {
                         "in": "query",
                         "name": "endpoint_id",
-                        "required": false,
-                        "schema": { "type": "int" }
-                    },
-                    {
-                        "in": "query",
-                        "name": "property_name",
                         "required": true,
-                        "schema": { "type": "string" }
+                        "schema": { "type": "int" }
                     }
                 ],
                 "responses": {
                     "200": {
                         "$ref": "#/components/responses/200",
                         "response": {
-                            "description": "Property value",
+                            "description": "Endpoint volume value",
                             "type": "double"
                         }
                     },
@@ -387,10 +373,9 @@
                 }
             }
         },
-        "/set_state": {
-            "description": "Set state",
+        "/get_endpoint_info": {
+            "description": "Retrieve endpoint information including its properties",
             "get": {
-                "x-permissions": { "$ref": "#/components/x-permissions/streamcontrol" },
                 "parameters": [
                     {
                         "in": "query",
@@ -401,18 +386,42 @@
                     {
                         "in": "query",
                         "name": "endpoint_id",
+                        "required": false,
+                        "schema": { "type": "int" }
+                    }
+                ],
+                "responses": {
+                    "200": { "$ref": "#/components/responses/200" },
+                    "400": { "$ref": "#/components/responses/400" }
+                }
+            }
+        },
+        "/set_property": {
+            "description": "Set endpoint property value",
+            "get": {
+                "x-permissions": { "$ref": "#/components/x-permissions/endpointcontrol" },
+                "parameters": [
+                    {
+                        "in": "query",
+                        "name": "endpoint_type",
                         "required": true,
+                        "schema": { "type": "enum" }
+                    },
+                    {
+                        "in": "query",
+                        "name": "endpoint_id",
+                        "required": false,
                         "schema": { "type": "int" }
                     },
                     {
                         "in": "query",
-                        "name": "state_name",
+                        "name": "property_name",
                         "required": true,
                         "schema": { "type": "string" }
                     },
                     {
                         "in": "query",
-                        "name": "state_value",
+                        "name": "value",
                         "required": true,
                         "schema": { "type": "string" }
                     }
@@ -423,8 +432,8 @@
                 }
             }
         },
-        "/get_state": {
-            "description": "Get state value",
+        "/get_property": {
+            "description": "Get endpoint property value",
             "get": {
                 "parameters": [
                     {
@@ -436,12 +445,12 @@
                     {
                         "in": "query",
                         "name": "endpoint_id",
-                        "required": true,
+                        "required": false,
                         "schema": { "type": "int" }
                     },
                     {
                         "in": "query",
-                        "name": "state_name",
+                        "name": "property_name",
                         "required": true,
                         "schema": { "type": "string" }
                     }
@@ -450,22 +459,39 @@
                     "200": {
                         "$ref": "#/components/responses/200",
                         "response": {
-                            "description": "Endpoint state value",
-                            "type": "string"
+                            "description": "Property value",
+                            "type": "double"
                         }
                     },
                     "400": { "$ref": "#/components/responses/400" }
                 }
             }
         },
-        "/post_sound_event": {
-            "description": "Post sound event",
+        "/get_list_actions": {
+            "description": "Retrieve a list of supported actions for a particular audio role",
+            "get": {
+                "parameters": [
+                    {
+                        "in": "query",
+                        "name": "audio_role",
+                        "required": true,
+                        "schema": { "type": "string" }
+                    }
+                ],
+                "responses": {
+                    "200": { "$ref": "#/components/responses/200" },
+                    "400": { "$ref": "#/components/responses/400" }
+                }
+            }
+        },
+        "/post_action": {
+            "description": "Post sound or audio device related action event (extendable mechanism)",
             "get": {
                 "x-permissions": { "$ref": "#/components/x-permissions/soundevent" },
                 "parameters": [
                     {
                         "in": "query",
-                        "name": "event_name",
+                        "name": "action_name",
                         "required": true,
                         "schema": { "type": "string" }
                     },
@@ -483,7 +509,7 @@
                     },
                     {
                         "in": "query",
-                        "name": "audio_context",
+                        "name": "action_context",
                         "required": false,
                         "schema": { "type": "object" }
                     }
@@ -530,12 +556,8 @@
                     }
                 ],
                 "responses": {
-                    "200": {
-                        "$ref": "#/components/responses/200"
-                    },
-                    "400": {
-                        "$ref": "#/components/responses/400"
-                    }
+                    "200": { "$ref": "#/components/responses/200" },
+                    "400": { "$ref": "#/components/responses/400" }
                 }
             }
         }
diff --git a/src/ahl-binding.c b/src/ahl-binding.c
index 4b075c0..264930f 100644
--- a/src/ahl-binding.c
+++ b/src/ahl-binding.c
@@ -1,6 +1,5 @@
 /*
  * Copyright (C) 2017 "Audiokinetic Inc"
- * Author Francois Thibault <fthibault@audiokinetic.com>
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -22,43 +21,160 @@
 #include "ahl-binding.h"
 #include "ahl-apidef.h" // Generated from JSON OpenAPI
 #include "wrap-json.h"
+#include "ahl-policy.h"
+#include "ahl-policy-utils.h"
 
 // Global high-level binding context
-AHLCtxT g_AHLCtx;
-
-// Workshop development topics:
-// - Associating streamID with a client id of afb. Has to be done with sessions?
-// - Declaring dependencies on other binding services (examples)
-// - json_object_put to free JSON objects? potential leaks currently
-// - no events on new HAL registered to alsacore?
-// - unregistering event subscription examples?
-// - discussion how to use property and event system to dispatch external parameterization (e.g. Wwise/Fiberdyne)
-// - discussion where to best isolate policy (controller or HLB plugin)
-// - Other HLB attributes to pass through (e.g. interrupted behavior) 
-// - DBScale TLV warning
-// - GLib (internal) dependency
-// - HAL registration dependency (initialization order)
-// - Binding startup arguments for config file path
-// - Can we use the same HAL for different card numbers?
-// - Example use of volume ramping in HAL?
-// - Binding termination function
-// - AGL persistence framework?
-// - How to provide API services with config.xml (secrets and all)
-
-
-// Helper macros/func for packaging JSON objects from C structures
-#define EndpointInfoStructToJSON(__JSON_OBJECT__, __ENDPOINTINFOSTRUCT__) \
-    wrap_json_pack(&__JSON_OBJECT__, "{s:i,s:i,s:s,s:i}",\
-                    "endpoint_id", __ENDPOINTINFOSTRUCT__.endpointID, \
-                    "endpoint_type", __ENDPOINTINFOSTRUCT__.type, \
-                    "device_name", __ENDPOINTINFOSTRUCT__.deviceName, \
-                    "device_uri_type", __ENDPOINTINFOSTRUCT__.deviceURIType);
+AHLCtxT g_AHLCtx; 
+
+// TODO: Helpers that could be common
+static EndpointTypeT EndpointTypeToEnum(char * in_pEndpointTypeStr)
+{
+    if (in_pEndpointTypeStr == NULL) {
+        return ENDPOINTTYPE_MAXVALUE;
+    }
+    else if (strcasecmp(in_pEndpointTypeStr,AHL_ENDPOINTTYPE_SOURCE)==0) {
+        return ENDPOINTTYPE_SOURCE;
+    }
+    else if (strcasecmp(in_pEndpointTypeStr,AHL_ENDPOINTTYPE_SINK)==0) {
+        return ENDPOINTTYPE_SINK;
+    }
+    else 
+        return ENDPOINTTYPE_MAXVALUE;
+}
+
+static StreamStateT StreamStateToEnum(char * in_pStreamStateStr)
+{
+    if (in_pStreamStateStr == NULL) {
+        return STREAM_STATE_MAXVALUE;
+    }
+    else if (strcasecmp(in_pStreamStateStr,AHL_STREAM_STATE_IDLE)==0) {
+        return STREAM_STATE_IDLE;
+    }
+    else if (strcasecmp(in_pStreamStateStr,AHL_STREAM_STATE_RUNNING)==0) {
+        return STREAM_STATE_RUNNING;
+    }
+    else if (strcasecmp(in_pStreamStateStr,AHL_STREAM_STATE_PAUSED)==0) {
+        return STREAM_STATE_PAUSED;
+    }
+    else 
+        return STREAM_STATE_MAXVALUE;
+}
+
+static StreamMuteT StreamMuteToEnum(char * in_pStreamMuteStr)
+{
+    if (in_pStreamMuteStr == NULL) {
+        return STREAM_MUTE_MAXVALUE;
+    }
+    else if (strcasecmp(in_pStreamMuteStr,AHL_STREAM_UNMUTED)==0) {
+        return STREAM_UNMUTED;
+    }
+    else if (strcasecmp(in_pStreamMuteStr,AHL_STREAM_MUTED)==0) {
+        return STREAM_MUTED;
+    }
+    else 
+        return STREAM_MUTE_MAXVALUE;
+}
+
+static char * DeviceURITypeEnumToStr(DeviceURITypeT in_eDeviceURIType) {
+    switch(in_eDeviceURIType) {
+        case DEVICEURITYPE_ALSA_HW:  // Alsa hardware device URI
+            return AHL_DEVICEURITYPE_ALSA_HW;
+        case DEVICEURITYPE_ALSA_DMIX:    // Alsa Dmix device URI (only for playback devices)
+            return AHL_DEVICEURITYPE_ALSA_DMIX;
+        case DEVICEURITYPE_ALSA_DSNOOP:  // Alsa DSnoop device URI (only for capture devices)
+            return AHL_DEVICEURITYPE_ALSA_DSNOOP;
+        case DEVICEURITYPE_ALSA_SOFTVOL: // Alsa softvol device URI
+            return AHL_DEVICEURITYPE_ALSA_SOFTVOL;
+        case DEVICEURITYPE_ALSA_PLUG:    // Alsa plug device URI
+            return AHL_DEVICEURITYPE_ALSA_PLUG;
+        case DEVICEURITYPE_ALSA_OTHER:   // Alsa domain URI device of unspecified type
+            return AHL_DEVICEURITYPE_ALSA_OTHER;
+        case DEVICEURITYPE_NOT_ALSA:     // Unknown (not ALSA domain)
+            return AHL_DEVICEURITYPE_NOT_ALSA;
+        default:
+            return "Unknown";
+    }
+}
+
+static char * StreamStateEnumToStr(StreamStateT in_eStreamState) {
+    switch(in_eStreamState) {
+        case STREAM_STATE_IDLE:
+            return AHL_STREAM_STATE_IDLE;
+        case STREAM_STATE_RUNNING: 
+            return AHL_STREAM_STATE_RUNNING;
+        case STREAM_STATE_PAUSED: 
+            return AHL_STREAM_STATE_PAUSED;
+        default:
+            return "Unknown";
+    }
+}
+
+static char * StreamMuteEnumToStr(StreamMuteT in_eStreamMute) {
+    switch(in_eStreamMute) {
+        case STREAM_UNMUTED: 
+            return AHL_STREAM_UNMUTED;
+        case STREAM_MUTED: 
+            return AHL_STREAM_MUTED;
+        default:
+            return "Unknown";
+    }
+}
+
+static void AudioFormatStructToJSON(json_object **audioFormatJ, AudioFormatT * pAudioFormat)
+{
+    wrap_json_pack(audioFormatJ, "{s:i,s:i,s:i}",
+                    "sample_rate", pAudioFormat->sampleRate, 
+                    "num_channels", pAudioFormat->numChannels, 
+                    "sample_type", pAudioFormat->sampleType);
+}
+
+// Package only information that can useful to application clients when selecting endpoint
+static void EndpointInfoStructToJSON(json_object **endpointInfoJ, EndpointInfoT * pEndpointInfo)
+{
+    json_object *formatInfoJ = NULL;
+    wrap_json_pack(endpointInfoJ, "{s:i,s:s,s:s,s:s,s:s,s:s,s:s}",
+                    "endpoint_id", pEndpointInfo->endpointID, 
+                    "endpoint_type", (pEndpointInfo->type == ENDPOINTTYPE_SOURCE) ? AHL_ENDPOINTTYPE_SOURCE : AHL_ENDPOINTTYPE_SINK,
+                    "device_name", pEndpointInfo->gsDeviceName, 
+                    "display_name", pEndpointInfo->gsDisplayName,
+                    "audio_role", pEndpointInfo->pRoleName,
+                    "device_domain",pEndpointInfo->gsDeviceDomain,
+                    "device_uri_type", DeviceURITypeEnumToStr(pEndpointInfo->deviceURIType));
+    AudioFormatStructToJSON(&formatInfoJ,&pEndpointInfo->format);
+    json_object_object_add(*endpointInfoJ,"format",formatInfoJ);
+
+    // Properties
+    if (pEndpointInfo->pPropTable) {
+        json_object *pPropTableJ = json_object_new_array();
+        
+        GHashTableIter iter;
+        gpointer key, value;
+        g_hash_table_iter_init (&iter, pEndpointInfo->pPropTable);
+        while (g_hash_table_iter_next (&iter, &key, &value))
+        {
+            if((key!=NULL) && (value!=NULL))
+            {
+                json_object *pPropertyJ = NULL;
+                json_object_get((json_object*)value); // Don't let the framework free our object when the request is done
+                wrap_json_pack(&pPropertyJ, "{s:s,s:o}","property_name", (char*)key, "property_value", (json_object*)value);
+                json_object_array_add(pPropTableJ, pPropertyJ);
+            }
+        }
+        json_object_object_add(*endpointInfoJ,"properties",pPropTableJ);
+    }
+}
  
-static void StreamInfoStructToJSON(json_object **streamInfoJ, StreamInfoT streamInfo)
+// Package only information that can useful to application clients when opening a stream
+static void StreamInfoStructToJSON(json_object **streamInfoJ, StreamInfoT * pStreamInfo)
 {
-    json_object *endpointInfoJ;
-    EndpointInfoStructToJSON(endpointInfoJ,streamInfo.endpointInfo);
-    wrap_json_pack(streamInfoJ, "{s:i}", "stream_id", streamInfo.streamID);
+    json_object *endpointInfoJ = NULL;
+    EndpointInfoStructToJSON(&endpointInfoJ,pStreamInfo->pEndpointInfo);
+    wrap_json_pack(streamInfoJ, "{s:i,s:s,s:s,s:s}", 
+        "stream_id", pStreamInfo->streamID,
+        "state", StreamStateEnumToStr(pStreamInfo->streamState),
+        "mute", StreamMuteEnumToStr(pStreamInfo->streamMute),   
+        "device_uri",pStreamInfo->pEndpointInfo->gsDeviceURI); // Need to open a stream to have access to the device URI
     json_object_object_add(*streamInfoJ,"endpoint_info",endpointInfoJ);
 }
 
@@ -69,86 +185,378 @@ static streamID_t CreateNewStreamID()
     return newID;
 }
 
-static int FindRoleIndex( const char * in_pAudioRole)
+static EndpointInfoT * GetEndpointInfoWithRole(endpointID_t in_endpointID, EndpointTypeT in_endpointType, RoleInfoT * in_pRole)
 {
-    int index = -1; // Not found
-    for (int i = 0; i < g_AHLCtx.policyCtx.iNumberRoles; i++)
-    {
-        GString gs = g_array_index( g_AHLCtx.policyCtx.pAudioRoles, GString, i );
-        if ( strcasecmp(gs.str,in_pAudioRole) == 0 )
-            index = i;
+    EndpointInfoT * pEndpointInfo = NULL;
+    GPtrArray * pDeviceArray = NULL;
+    if (in_endpointType == ENDPOINTTYPE_SOURCE){
+        pDeviceArray = in_pRole->pSourceEndpoints;
+    }
+    else { 
+        pDeviceArray = in_pRole->pSinkEndpoints;
     }
-    return index;
+    g_assert_nonnull(pDeviceArray);
+
+    for (int j = 0; j < pDeviceArray->len; j++) {
+        EndpointInfoT * pCurEndpointInfo = g_ptr_array_index(pDeviceArray,j);
+        g_assert_nonnull(pCurEndpointInfo);
+        if (pCurEndpointInfo->endpointID == in_endpointID) {
+            pEndpointInfo = pCurEndpointInfo;
+            break;
+        }
+    }
+
+    return pEndpointInfo;
+}
+
+static int ReplaceEndpointInfoWithRole(endpointID_t in_endpointID, EndpointTypeT in_endpointType, RoleInfoT * in_pRole, EndpointInfoT * in_pNewEndpoint)
+{
+    GPtrArray * pDeviceArray = NULL;
+    if (in_endpointType == ENDPOINTTYPE_SOURCE){
+        pDeviceArray = in_pRole->pSourceEndpoints;
+    }
+    else { 
+        pDeviceArray = in_pRole->pSinkEndpoints;
+    }
+    g_assert_nonnull(pDeviceArray);
+
+    for (int j = 0; j < pDeviceArray->len; j++) {
+        EndpointInfoT * pCurEndpointInfo = g_ptr_array_index(pDeviceArray,j);
+        g_assert_nonnull(pCurEndpointInfo);
+        if (pCurEndpointInfo->endpointID == in_endpointID) {            
+            g_ptr_array_insert(pDeviceArray,j,in_pNewEndpoint);
+            g_ptr_array_remove_index(pDeviceArray,j+1);
+            TermEndpointInfo(pCurEndpointInfo);
+            // GLib automatically frees item upon array removal
+            return AHL_SUCCESS;
+        }
+    }
+
+    return AHL_FAIL;
 }
 
 static EndpointInfoT * GetEndpointInfo(endpointID_t in_endpointID, EndpointTypeT in_endpointType)
 {
     EndpointInfoT * pEndpointInfo = NULL;
-    for (int i = 0; i < g_AHLCtx.policyCtx.iNumberRoles; i++)
+
+    GHashTableIter iter;
+    gpointer key, value;      
+    g_hash_table_iter_init (&iter, g_AHLCtx.policyCtx.pRoleInfo);
+    while (pEndpointInfo == NULL && g_hash_table_iter_next (&iter, &key, &value))
     {
-        GArray * pRoleDeviceArray = NULL;
-        if (in_endpointType == ENDPOINTTYPE_SOURCE){
-            pRoleDeviceArray = g_ptr_array_index( g_AHLCtx.policyCtx.pSourceEndpoints, i );
+        RoleInfoT * pRoleInfo = (RoleInfoT*)value;
+        pEndpointInfo = GetEndpointInfoWithRole(in_endpointID,in_endpointType,pRoleInfo);
+    }
+
+    return pEndpointInfo;
+}
+
+static StreamInfoT * GetStream(streamID_t in_streamID)
+{
+    if (g_AHLCtx.policyCtx.pStreams == NULL)
+        return NULL;
+    
+    return g_hash_table_lookup(g_AHLCtx.policyCtx.pStreams,GINT_TO_POINTER(&in_streamID));
+}
+
+static RoleInfoT * GetRole(char * in_pAudioRoleName)
+{
+    if (g_AHLCtx.policyCtx.pRoleInfo == NULL)
+        return NULL;
+    
+    return g_hash_table_lookup(g_AHLCtx.policyCtx.pRoleInfo,in_pAudioRoleName);
+}
+
+static AHLClientCtxT * AllocateClientContext()
+{
+    AHLClientCtxT * pClientCtx = malloc(sizeof(AHLClientCtxT));
+    pClientCtx->pStreamAccessList = g_array_new(FALSE, TRUE, sizeof(streamID_t));
+    return pClientCtx;
+}
+
+static void TerminateClientContext(void * ptr)
+{
+    AHLClientCtxT * pClientCtx = (AHLClientCtxT *) ptr;
+    if (pClientCtx != NULL) {
+
+        // Avoid having policy in bad state if client loses WS connection (e.g. app termination without close stream)
+        // Force close streams in those cases.
+ 
+        if (pClientCtx->pStreamAccessList != NULL) {
+#ifndef AHL_DISCONNECT_POLICY 
+            for (int i = 0; i < pClientCtx->pStreamAccessList->len; i++)
+            {
+                streamID_t streamID = g_array_index(pClientCtx->pStreamAccessList,streamID_t,i);
+                // Call policy to verify whether creating a new audio stream is allowed in current context and possibly take other actions
+                StreamInfoT * pStreamInfo = GetStream(streamID);
+                if (pStreamInfo == NULL) {
+                    AFB_ERROR("Specified stream not currently active stream_id -> %d",streamID);
+                    return;
+                }
+                
+                json_object *pPolicyStreamJ = NULL;
+                int err = PolicyStreamStructToJSON(pStreamInfo, &pPolicyStreamJ);
+                if (err == AHL_POLICY_UTIL_FAIL)
+                {
+                    AFB_ERROR("Audio policy violation, Unable to get JSON object for Policy_CloseStream");
+                    return;
+                } 
+                Policy_CloseStream(pPolicyStreamJ);
+            }  
+#endif
+            g_array_free( pClientCtx->pStreamAccessList, TRUE);
+            pClientCtx->pStreamAccessList = NULL;
         }
-        else{
-            pRoleDeviceArray = g_ptr_array_index( g_AHLCtx.policyCtx.pSinkEndpoints, i );
+        free(pClientCtx);
+    }
+}
+
+static int CheckStreamAccessControl(AHLClientCtxT * pClientCtx, streamID_t streamID)
+{
+    int iAccessControl = AHL_ACCESS_CONTROL_DENIED;
+    if (pClientCtx && pClientCtx->pStreamAccessList) {
+        for (int i = 0; i < pClientCtx->pStreamAccessList->len ; i++) {
+            streamID_t iID = g_array_index(pClientCtx->pStreamAccessList,streamID_t,i);
+            if (iID == streamID) {
+                iAccessControl = AHL_ACCESS_CONTROL_GRANTED;
+            }    
         }
-        for (int j = 0; j < pRoleDeviceArray->len; j++) {
-            EndpointInfoT * pCurEndpointInfo = &g_array_index(pRoleDeviceArray,EndpointInfoT,j);
-            if (pCurEndpointInfo->endpointID == in_endpointID) {
-                pEndpointInfo = pCurEndpointInfo;
-                break;
+    }
+    return iAccessControl;
+}
+
+static int CreateEvents()
+{
+    int err = 0;
+
+    g_AHLCtx.policyCtx.propertyEvent = afb_daemon_make_event(AHL_ENDPOINT_PROPERTY_EVENT);
+    err = !afb_event_is_valid(g_AHLCtx.policyCtx.propertyEvent);
+    if (err) {
+        AFB_ERROR("Could not create endpoint property change event");
+        return err;
+    }
+
+    g_AHLCtx.policyCtx.volumeEvent = afb_daemon_make_event(AHL_ENDPOINT_VOLUME_EVENT);
+    err = !afb_event_is_valid(g_AHLCtx.policyCtx.volumeEvent);
+    if (err) {
+        AFB_ERROR("Could not create endpoint volume change event");
+        return err;
+    }
+
+    g_AHLCtx.policyCtx.postActionEvent = afb_daemon_make_event(AHL_POST_ACTION_EVENT);
+    err = !afb_event_is_valid(g_AHLCtx.policyCtx.postActionEvent);
+    if (err) {
+        AFB_ERROR("Could not create post action event call event");
+        return err;
+    }
+
+    return err;
+}
+
+static void AhlBindingTerm()
+{
+#ifndef AHL_DISCONNECT_POLICY    
+    // Policy termination
+    Policy_Term();
+#endif
+
+    // Roles
+    if (g_AHLCtx.policyCtx.pRoleInfo != NULL) {
+        GHashTableIter iter;
+        gpointer key, value;
+        g_hash_table_iter_init(&iter, g_AHLCtx.policyCtx.pRoleInfo);
+        while (g_hash_table_iter_next (&iter, &key, &value))
+        {
+            RoleInfoT * pRole = (RoleInfoT *)value;
+            if (pRole)
+            {
+                if(pRole->pRoleName) {
+                    g_free(pRole->pRoleName);
+                    pRole->pRoleName = NULL;
+                }
+                // Actions
+                if (pRole->pActionList) {
+                    for (int i = 0; i < pRole->pActionList->len; i++)
+                    {
+                        g_ptr_array_remove_index( pRole->pActionList, i ); // Free char * is called by GLib
+                    }
+                }
+                // Source endpoints
+                if (pRole->pSourceEndpoints) {
+                    for (int i = 0; i < pRole->pSourceEndpoints->len; i++)
+                    {
+                        EndpointInfoT * pEndpoint = g_ptr_array_remove_index( pRole->pSourceEndpoints, i );  // Free endpoint * is called by GLib
+                        if (pEndpoint) {
+                            TermEndpointInfo(pEndpoint);
+                        }
+                    }
+                }
+                // Sink endpoints
+                if (pRole->pSinkEndpoints) {
+                    for (int i = 0; i < pRole->pSinkEndpoints->len; i++)
+                    {
+                        EndpointInfoT * pEndpoint = g_ptr_array_remove_index( pRole->pSinkEndpoints, i ); // Free endpoint * is called by GLib
+                        if (pEndpoint) {
+                            TermEndpointInfo(pEndpoint);
+                        }
+                    }
+                }
+                free(pRole);
             }
         }
+        g_hash_table_remove_all(g_AHLCtx.policyCtx.pRoleInfo);
+        g_hash_table_destroy(g_AHLCtx.policyCtx.pRoleInfo);
+        g_AHLCtx.policyCtx.pRoleInfo = NULL;
     }
-    return pEndpointInfo;
+   
+   if (g_AHLCtx.policyCtx.pStreams) {
+        GHashTableIter iter;
+        gpointer key, value;
+        g_hash_table_iter_init (&iter, g_AHLCtx.policyCtx.pStreams);
+        while (g_hash_table_iter_next (&iter, &key, &value))
+        {
+            if (value)
+                free(value);
+        } 
+        g_hash_table_remove_all(g_AHLCtx.policyCtx.pStreams);
+        g_hash_table_destroy(g_AHLCtx.policyCtx.pStreams);
+        g_AHLCtx.policyCtx.pStreams = NULL;
+   }
+
+    if (g_AHLCtx.policyCtx.pHALList) {
+        g_ptr_array_free(g_AHLCtx.policyCtx.pHALList,TRUE);
+        g_AHLCtx.policyCtx.pHALList = NULL;
+    }
+
+    AFB_INFO("Audio high-level binding termination success");
 }
 
 // Binding initialization
 PUBLIC int AhlBindingInit()
 {
-    int errcount = 0;
     int err = 0;
 
-    // This API uses services from low level audio
-    err = afb_daemon_require_api_v2("alsacore",1) ;
-    if( err != 0 )
+    memset(&g_AHLCtx,0,sizeof(g_AHLCtx));
+    
+    // Register exit function
+    atexit(AhlBindingTerm);
+
+    //Create AGL Events
+    err=CreateEvents();
+    if(err)
     {
-        AFB_ERROR("Audio high level API requires alsacore API to be available");
-        return 1;
+        //Error messages already reported inside CreateEvents
+        return err;
     }
 
     // Parse high-level binding JSON configuration file (will build device lists)
-    errcount += ParseHLBConfig();
+    err = ParseHLBConfig();
+    if(err)
+    {
+        //Error messages already reported inside ParseHLBConfig
+        return err;
+    }
+    
+#ifndef AHL_DISCONNECT_POLICY  
+    // Policy initialization
+    err = Policy_Init();
+    if(err == AHL_POLICY_REJECT)
+    {
+        //Error messages already reported inside PolicyInit
+        return err;        
+    }
 
-    // Initialize list of active streams
-    g_AHLCtx.policyCtx.pActiveStreams = g_array_new(FALSE,TRUE,sizeof(StreamInfoT));
+    // for all audio Roles
+    GHashTableIter iter;
+    gpointer key, value;
+
+    g_hash_table_iter_init (&iter, g_AHLCtx.policyCtx.pRoleInfo);
+    while (g_hash_table_iter_next (&iter, &key, &value))
+    {
+        RoleInfoT * pRoleInfo = (RoleInfoT*)value;
+        if (pRoleInfo->pSourceEndpoints){
+            // for all source endpoints
+            for (int j = 0; j < pRoleInfo->pSourceEndpoints->len; j++) {
+                EndpointInfoT * pCurEndpointInfo = g_ptr_array_index(pRoleInfo->pSourceEndpoints,j);
+                g_assert_nonnull(pCurEndpointInfo);
+                json_object *pPolicyEndpointJ = NULL;
+                err = PolicyEndpointStructToJSON(pCurEndpointInfo, &pPolicyEndpointJ);
+                if (err == AHL_POLICY_UTIL_FAIL)
+                {
+                    AFB_ERROR("Unable to Create Endpoint Json object error:%s ",wrap_json_get_error_string(err));
+                    return err;    
+                }
+                else
+                {
+                    err = Policy_Endpoint_Init(pPolicyEndpointJ);
+                    if (err == AHL_POLICY_REJECT) {
+                        AFB_ERROR("Policy endpoint properties initalization failed for endpoint_id :%d type:%d",pCurEndpointInfo->endpointID, pCurEndpointInfo->type);
+                    }                    
+                    //free pPolicyEndpointJ
+                    json_object_put(pPolicyEndpointJ);
+                }                                 
+            }
+        }
+        if (pRoleInfo->pSinkEndpoints){
+            // for all sink endpoints
+            for (int j = 0; j < pRoleInfo->pSinkEndpoints->len; j++) {
+                EndpointInfoT * pCurEndpointInfo = g_ptr_array_index(pRoleInfo->pSinkEndpoints,j);
+                g_assert_nonnull(pCurEndpointInfo);
+                json_object *pPolicyEndpointJ = NULL;
+                err = PolicyEndpointStructToJSON(pCurEndpointInfo, &pPolicyEndpointJ);
+                if (err == AHL_POLICY_UTIL_FAIL)
+                {
+                    AFB_ERROR("Unable to Create Endpoint Json object error:%s ",wrap_json_get_error_string(err));
+                    return err;
+                }
+                else
+                {
+                    err = Policy_Endpoint_Init(pPolicyEndpointJ);
+                    if (err== AHL_POLICY_REJECT) {
+                        AFB_ERROR("Policy endpoint properties initalization failed for endpoint_id :%d type:%d",pCurEndpointInfo->endpointID, pCurEndpointInfo->type);                        
+                    }
+                    //free pPolicyEndpointJ
+                    json_object_put(pPolicyEndpointJ);
+                } 
 
-    // TODO: Register for device changes ALSA low level audio service
+            }
+        }
+    }    
+#endif   
 
-    // TODO: Perform other binding initialization tasks (e.g. broadcast service ready event?)
+    // Initialize list of active streams
+    g_AHLCtx.policyCtx.pStreams = g_hash_table_new(g_int_hash, g_int_equal);
+    if(g_AHLCtx.policyCtx.pStreams == NULL)
+    {
+        AFB_ERROR("Unable to create Active Stream List");
+        return err;
+    }
 
-    // TODO: Use AGL persistence framework to retrieve and set inital state/volumes/properties
+    // TODO: Use AGL persistence framework to retrieve and set initial volumes/properties
 
-    AFB_DEBUG("Audio high-level Binding success errcount=%d", errcount);
-    return errcount;
+    AFB_DEBUG("Audio high-level Binding success");
+    return err;
 }
 
-// TODO: AhlBindingTerm()?
-// // TODO: Use AGL persistence framework to retrieve and set inital state/volumes
+PUBLIC void AhlOnEvent(const char *evtname, json_object *eventJ)
+{
+    AFB_DEBUG("AHL received event %s", evtname);
 
-// TODO: OnEventFunction
-// if ALSA device availability change -> update source / sink list
-// Call policy to attempt to assign role based on information (e.g. device name)
-// Policy should also determine priority (insert device in right spot in the list)
+    // TODO: Handle event from the policy to update internal information (currently not possible since within the same binding)
+    
+#ifndef AHL_DISCONNECT_POLICY  
+    // Temp: currently forward to policy to handle events  (they will be received directly when disconnected into separate binding)
+    Policy_OnEvent(evtname, eventJ);
+#endif
+}
 
 PUBLIC void audiohlapi_get_sources(struct afb_req req)
 {
-    json_object *sourcesJ = NULL;
-    json_object *sourceJ = NULL;
+    json_object *devicesJ = NULL;
+    json_object *deviceJ = NULL;
     json_object *queryJ = NULL;
     char * audioRole = NULL;
-   
+
     queryJ = afb_req_json(req);
     int err = wrap_json_unpack(queryJ, "{s:s}", "audio_role", &audioRole);
     if (err) {
@@ -156,40 +564,41 @@ PUBLIC void audiohlapi_get_sources(struct afb_req req)
         return;
     }
 
-    sourcesJ = json_object_new_array();
-
     AFB_DEBUG("Filtering devices according to specified audio role=%s", audioRole);
-    // Check that the role requested exists in current configuration
-    int roleIndex = FindRoleIndex(audioRole);
-    if ( roleIndex == -1)
+
+    RoleInfoT * pRole = GetRole(audioRole);
+    if ( pRole == NULL )
     {
         afb_req_fail_f(req, "Invalid arguments", "Requested audio role does not exist in current configuration -> %s", json_object_get_string(queryJ));
         return;
     }
-    // List device only for current audio role and device type (pick the role device list)
-    int iRoleIndex = FindRoleIndex(audioRole);
-    if (iRoleIndex >= 0)
+    else
     {
-        GArray * pRoleSourceDeviceArray = g_ptr_array_index( g_AHLCtx.policyCtx.pSourceEndpoints, iRoleIndex );
-        int iNumberDevices = pRoleSourceDeviceArray->len;
-        for ( int j = 0 ; j < iNumberDevices; j++)
-        {
-            EndpointInfoT sourceInfo = g_array_index(pRoleSourceDeviceArray,EndpointInfoT,j);
-            EndpointInfoStructToJSON(sourceJ, sourceInfo);
-            json_object_array_add(sourcesJ, sourceJ);
+        devicesJ = json_object_new_array();
+        GPtrArray * pDeviceArray = pRole->pSourceEndpoints;
+        if (pDeviceArray) {
+            int iNumberDevices = pDeviceArray->len;
+            for ( int j = 0 ; j < iNumberDevices; j++)
+            {
+                EndpointInfoT * pEndpointInfo = g_ptr_array_index(pDeviceArray,j);
+                if (pEndpointInfo) {
+                    EndpointInfoStructToJSON(&deviceJ, pEndpointInfo);
+                    json_object_array_add(devicesJ, deviceJ);
+                }
+            }
         }
     } 
 
-    afb_req_success(req, sourcesJ, "List of sources");
+    afb_req_success(req, devicesJ, "List of sources");
 }
 
 PUBLIC void audiohlapi_get_sinks(struct afb_req req)
 {
-    json_object *sinksJ = NULL;
-    json_object *sinkJ = NULL;
+    json_object *devicesJ = NULL;
+    json_object *deviceJ = NULL;
     json_object *queryJ = NULL;
     char * audioRole = NULL;
-    
+
     queryJ = afb_req_json(req);
     int err = wrap_json_unpack(queryJ, "{s:s}", "audio_role", &audioRole);
     if (err) {
@@ -197,109 +606,163 @@ PUBLIC void audiohlapi_get_sinks(struct afb_req req)
         return;
     }
 
-    sinksJ = json_object_new_array();
-
     AFB_DEBUG("Filtering devices according to specified audio role=%s", audioRole);
-    // Check that the role requested exists in current configuration
-    int roleIndex = FindRoleIndex(audioRole);
-    if ( roleIndex == -1)
+
+    RoleInfoT * pRole = GetRole(audioRole);
+    if ( pRole == NULL )
     {
         afb_req_fail_f(req, "Invalid arguments", "Requested audio role does not exist in current configuration -> %s", json_object_get_string(queryJ));
         return;
     }
-    // List device only for current audio role and device type (pick the role device list)
-    int iRoleIndex = FindRoleIndex(audioRole);
-    if (iRoleIndex >= 0)
+    else
     {
-        GArray * pRoleSinkDeviceArray = g_ptr_array_index( g_AHLCtx.policyCtx.pSinkEndpoints, iRoleIndex );
-        int iNumberDevices = pRoleSinkDeviceArray->len;
-        for ( int j = 0 ; j < iNumberDevices; j++)
-        {
-            EndpointInfoT sinkInfo = g_array_index(pRoleSinkDeviceArray,EndpointInfoT,j);
-            EndpointInfoStructToJSON(sinkJ, sinkInfo);
-            json_object_array_add(sinksJ, sinkJ);
+        devicesJ = json_object_new_array();
+        GPtrArray * pDeviceArray = pRole->pSinkEndpoints;
+        if (pDeviceArray) {
+            int iNumberDevices = pDeviceArray->len;
+            for ( int j = 0 ; j < iNumberDevices; j++)
+            {
+                EndpointInfoT * pEndpointInfo = g_ptr_array_index(pDeviceArray,j);
+                EndpointInfoStructToJSON(&deviceJ, pEndpointInfo);
+                json_object_array_add(devicesJ, deviceJ);
+            }
         }
     } 
 
-    afb_req_success(req, sinksJ, "List of sinks");
+    afb_req_success(req, devicesJ, "List of sinks");
 }
 
 PUBLIC void audiohlapi_stream_open(struct afb_req req)
 {
     json_object *streamInfoJ = NULL;
-    StreamInfoT streamInfo;
+    StreamInfoT * pStreamInfo = NULL;
     json_object *queryJ = NULL;
     char * audioRole = NULL;
-    EndpointTypeT endpointType;
-    endpointID_t endpointID = UNDEFINED_ID;
-    int policyAllowed = 0;
-    EndpointInfoT endpointInfo;
+    char * endpointTypeStr = NULL;
+    EndpointTypeT endpointType = ENDPOINTTYPE_MAXVALUE;
+    endpointID_t endpointID = AHL_UNDEFINED;
+    EndpointInfoT * pEndpointInfo = NULL;
+    EndpointSelectionModeT endpointSelMode = ENDPOINTSELMODEMAXVALUE;
     
     queryJ = afb_req_json(req);
-    int err = wrap_json_unpack(queryJ, "{s:s,s:i,s?i}", "audio_role", &audioRole, "endpoint_type", &endpointType, "endpoint_id", &endpointID);
+    int err = wrap_json_unpack(queryJ, "{s:s,s:s,s?i}", "audio_role", &audioRole, "endpoint_type", &endpointTypeStr, "endpoint_id", &endpointID);
     if (err) {
         afb_req_fail_f(req, "Invalid arguments", "Args not a valid json object query=%s", json_object_get_string(queryJ));
         return;
     }
-    AFB_DEBUG("Parsed input arguments = audio_role:%s endpoint_type:%d endpoint_id:%d", audioRole,endpointType,endpointID);
+    AFB_DEBUG("Parsed input arguments = audio_role:%s endpoint_type:%s endpoint_id:%d", audioRole,endpointTypeStr,endpointID);
+    endpointType = EndpointTypeToEnum(endpointTypeStr);
 
-    int iRoleIndex = FindRoleIndex(audioRole);
-    if (iRoleIndex < 0) {
+    // Check if there is already an existing context for this client
+    AHLClientCtxT * pClientCtx = afb_req_context_get(req); // Retrieve client-specific data structure
+    if (pClientCtx == NULL)
+    {
+        pClientCtx = AllocateClientContext();
+        afb_req_context_set(req, pClientCtx, TerminateClientContext);
+    }
+
+    RoleInfoT * pRole = GetRole(audioRole);
+    if ( pRole == NULL )
+    {
         afb_req_fail_f(req, "Invalid audio role", "Audio role was not found in configuration -> %s",audioRole);
         return;
     }
 
-    GArray * pRoleDeviceArray = NULL;
+    GPtrArray * pDeviceArray = NULL;
     if (endpointType == ENDPOINTTYPE_SOURCE){
-        pRoleDeviceArray = g_ptr_array_index( g_AHLCtx.policyCtx.pSourceEndpoints, iRoleIndex );
+        pDeviceArray = pRole->pSourceEndpoints;
     }
     else{
-        pRoleDeviceArray = g_ptr_array_index( g_AHLCtx.policyCtx.pSinkEndpoints, iRoleIndex );
+        pDeviceArray = pRole->pSinkEndpoints;
     }
-    if (pRoleDeviceArray->len == 0) {
-        afb_req_fail_f(req, "No available devices", "No available devices for role:%s and device type:%d",audioRole,endpointType);
+    if (pDeviceArray == NULL || pDeviceArray->len == 0) {
+        afb_req_fail_f(req, "No available devices", "No available devices for role:%s and device type:%s",audioRole,endpointTypeStr);
         return;
     }
 
-    if (endpointID == UNDEFINED_ID)
+    if (endpointID == AHL_UNDEFINED)
     {
         // Assign a device based on configuration priority (first in the list for requested role and endpoint type)
-        endpointInfo = g_array_index(pRoleDeviceArray,EndpointInfoT,0);
+        pEndpointInfo = g_ptr_array_index(pDeviceArray,0);
+        endpointSelMode = ENDPOINTSELMODE_AUTO;
+        
     }
     else{
+        endpointSelMode = ENDPOINTSELMODE_MANUAL;
         // Find specified endpoint ID in list of devices
-        int iNumberDevices = pRoleDeviceArray->len;
-        int iEndpointFound = 0;
+        int iNumberDevices = pDeviceArray->len;
         for ( int j = 0 ; j < iNumberDevices; j++)
         {
-            endpointInfo = g_array_index(pRoleDeviceArray,EndpointInfoT,j);
-            if (endpointInfo.endpointID == endpointID) {
-                iEndpointFound = 1;
+            pEndpointInfo = g_ptr_array_index(pDeviceArray,j);
+            if (pEndpointInfo && pEndpointInfo->endpointID == endpointID) {
                 break;
             }
+            pEndpointInfo = NULL;
         }
-        if (iEndpointFound == 0) {
-            afb_req_fail_f(req, "Endpoint not available", "Specified endpoint not available for role:%s and device type:%d endpoint id %d",audioRole,endpointType,endpointID);
-            return;
-        }
+
     }
 
+    if (pEndpointInfo == NULL) {
+        afb_req_fail_f(req, "Endpoint not available", "Specified endpoint not available for role:%s and device type:%d endpoint id %d",audioRole,endpointType,endpointID);
+        return;
+    }
+
+    pStreamInfo = (StreamInfoT*) malloc(sizeof(StreamInfoT));
+    memset(pStreamInfo,0,sizeof(StreamInfoT));
+
+    // Create stream
+    pStreamInfo->streamID = CreateNewStreamID(); // create new ID
+    pStreamInfo->streamState = STREAM_STATE_IDLE;
+    pStreamInfo->streamMute = STREAM_UNMUTED;
+    pStreamInfo->pEndpointInfo = pEndpointInfo;
+    pStreamInfo->endpointSelMode = endpointSelMode;
+    // Directly from role config for now, but could be programmatically overriden in the future
+    pStreamInfo->pRoleName = pRole->pRoleName;         
+    pStreamInfo->iPriority = pRole->iPriority;   
+    pStreamInfo->eInterruptBehavior = pRole->eInterruptBehavior;
+
+#ifndef AHL_DISCONNECT_POLICY  
     // Call policy to verify whether creating a new audio stream is allowed in current context and possibly take other actions
-    policyAllowed = Policy_OpenStream(audioRole, endpointType, endpointID);
-    if (policyAllowed == AUDIOHL_POLICY_REJECT)
+    json_object *pPolicyStreamJ = NULL;
+    err = PolicyStreamStructToJSON(pStreamInfo, &pPolicyStreamJ);
+    if (err == AHL_POLICY_UTIL_FAIL)
+    {
+        afb_req_fail(req, "Audio policy violation", "Unable to get JSON object for Policy_OpenStream");
+        return;
+    } 
+    
+    int policyAllowed = Policy_OpenStream(pPolicyStreamJ);    
+    if (policyAllowed == AHL_POLICY_REJECT)
     {
         afb_req_fail(req, "Audio policy violation", "Open stream not allowed in current context");
         return;
+    } 
+#endif   
+
+    char streamEventName[128];
+    snprintf(streamEventName,128,"ahl_streamstate_%d",pStreamInfo->streamID);
+    
+    pStreamInfo->streamStateEvent = afb_daemon_make_event(streamEventName);
+    err = !afb_event_is_valid(pStreamInfo->streamStateEvent);
+    if (err) {
+        afb_req_fail(req, "Stream event creation failure", "Could not create stream specific state change event");
+        return;
     }
 
-    // Create stream
-    streamInfo.streamID = CreateNewStreamID(); // create new ID
-    streamInfo.endpointInfo = endpointInfo;
+    err = afb_req_subscribe(req,pStreamInfo->streamStateEvent);
+    if (err) {
+        afb_req_fail(req, "Stream event subscription failure", "Could not subscribe to stream specific state change event");
+        return;
+    }
+
+    // Add to client context stream ID access rights
+    g_array_append_val(pClientCtx->pStreamAccessList, pStreamInfo->streamID);
 
     // Push stream on active stream list
-    g_array_append_val( g_AHLCtx.policyCtx.pActiveStreams, streamInfo );
+    if (g_AHLCtx.policyCtx.pStreams)
+        g_hash_table_insert( g_AHLCtx.policyCtx.pStreams, GINT_TO_POINTER(&pStreamInfo->streamID), pStreamInfo );
 
-    StreamInfoStructToJSON(&streamInfoJ,streamInfo);
+    StreamInfoStructToJSON(&streamInfoJ,pStreamInfo);
 
     afb_req_success(req, streamInfoJ, "Stream info structure");
 }
@@ -307,7 +770,7 @@ PUBLIC void audiohlapi_stream_open(struct afb_req req)
 PUBLIC void audiohlapi_stream_close(struct afb_req req)
 {
     json_object *queryJ = NULL;
-    streamID_t streamID = UNDEFINED_ID;
+    streamID_t streamID = AHL_UNDEFINED;
     
     queryJ = afb_req_json(req);
     int err = wrap_json_unpack(queryJ, "{s:i}", "stream_id", &streamID);
@@ -317,106 +780,252 @@ PUBLIC void audiohlapi_stream_close(struct afb_req req)
     }
     AFB_DEBUG("Parsed input arguments = stream_id:%d", streamID);
 
-    // TODO: Validate that the application ID from which the stream close is coming is the one that opened it, otherwise fail and do nothing
+    
+    StreamInfoT * pStreamInfo = GetStream(streamID);
+    if (pStreamInfo == NULL) {
+        afb_req_fail_f(req, "Stream not found", "Specified stream not currently active stream_id -> %d",streamID);
+        return;
+    }
 
-    // Remove from active stream list (if present)
-    int iNumActiveStreams = g_AHLCtx.policyCtx.pActiveStreams->len;
-    int iStreamFound = 0;
-    for ( int i = 0; i < iNumActiveStreams ; i++ ) {
-        StreamInfoT streamInfo = g_array_index(g_AHLCtx.policyCtx.pActiveStreams,StreamInfoT,i);
-        if (streamInfo.streamID == streamID){
-            g_array_remove_index(g_AHLCtx.policyCtx.pActiveStreams,i);
-            iStreamFound = 1;
-            break;
-        }
+    // Check if there is already an existing context for this client
+    AHLClientCtxT * pClientCtx = afb_req_context_get(req); // Retrieve client-specific data structure
+    if (pClientCtx == NULL)
+    {
+        afb_req_fail(req, "Bad state", "No client context associated with the request (is there an opened stream by this client?)");
+        return;
     }
 
-    if (iStreamFound == 0) {
-        afb_req_fail_f(req, "Stream not found", "Specified stream not currently active stream_id -> %d",streamID);
+    // Verify that this client can control the stream
+    int iStreamAccessControl = CheckStreamAccessControl( pClientCtx, streamID );
+    if (iStreamAccessControl == AHL_ACCESS_CONTROL_DENIED)
+    {
+        afb_req_fail(req, "Access control denied", "Close stream not allowed in current client context");
         return;
     }
 
+#ifndef AHL_DISCONNECT_POLICY  
+    json_object *pPolicyStreamJ = NULL;
+    err = PolicyStreamStructToJSON(pStreamInfo, &pPolicyStreamJ);
+    if (err == AHL_POLICY_UTIL_FAIL)
+    {
+        afb_req_fail(req, "Audio policy violation", "Unable to get JSON object for Policy_CloseStream");
+        return;
+    } 
+    // Call policy to verify whether creating a new audio stream is allowed in current context and possibly take other actions
+    int policyAllowed = Policy_CloseStream(pPolicyStreamJ);
+    if (policyAllowed == AHL_POLICY_REJECT)
+    {
+        afb_req_fail(req, "Audio policy violation", "Close stream not allowed in current context");
+        return;
+    }
+#endif
+
+    // Unsubscribe client from stream events
+    char streamEventName[128];
+    snprintf(streamEventName,128,"ahl_streamstate_%d",streamID);
+    int iValid = afb_event_is_valid(pStreamInfo->streamStateEvent);
+    if (iValid) {
+        err = afb_req_unsubscribe(req,pStreamInfo->streamStateEvent);
+        if (err) {
+            afb_req_fail(req, "Stream event subscription failure", "Could not unsubscribe to stream specific state change event");
+            return;
+        }
+    }
+
+    // Remove from stream list (if present)
+    if (g_AHLCtx.policyCtx.pStreams)
+        g_hash_table_remove(g_AHLCtx.policyCtx.pStreams,GINT_TO_POINTER(&pStreamInfo->streamID));
+    free(pStreamInfo);
+    pStreamInfo = NULL;
+
+    // Find index for cases where there are multiple streams per client
+    // Remove from client context stream ID and endpoint ID access rights
+    if (pClientCtx->pStreamAccessList) {
+        for (int i = 0; i < pClientCtx->pStreamAccessList->len ; i++) {
+            streamID_t iID = g_array_index(pClientCtx->pStreamAccessList,streamID_t,i);
+            if (iID == streamID) {
+                g_array_remove_index(pClientCtx->pStreamAccessList, i);
+            }    
+        }
+
+        if (pClientCtx->pStreamAccessList->len == 0) {
+            // If no more streams/endpoints owner, clear session
+            afb_req_context_clear(req);
+        }
+    }
+
     afb_req_success(req, NULL, "Stream close completed");
 }
 
-// Endpoints
-PUBLIC void audiohlapi_set_volume(struct afb_req req)
-{
+ PUBLIC void audiohlapi_set_stream_state(struct afb_req req)
+ {
     json_object *queryJ = NULL;
-    endpointID_t endpointID = UNDEFINED_ID;
-    EndpointTypeT endpointType = ENDPOINTTYPE_MAXVALUE;
-    char * volumeStr = NULL;
-    int rampTimeMS = 0;
-    int policyAllowed = 0;
+    streamID_t streamID = AHL_UNDEFINED;
+    char * streamStateStr = NULL;
     
     queryJ = afb_req_json(req);
-    int err = wrap_json_unpack(queryJ, "{s:i,s:i,s:s,s?i}", "endpoint_type", &endpointType,"endpoint_id",&endpointID,"volume",&volumeStr,"ramp_time_ms",&rampTimeMS);
+    int err = wrap_json_unpack(queryJ, "{s:i,s:s}", "stream_id", &streamID,"state",&streamStateStr);
     if (err) {
         afb_req_fail_f(req, "Invalid arguments", "Args not a valid json object query=%s", json_object_get_string(queryJ));
         return;
     }
-    AFB_DEBUG("Parsed input arguments = endpoint_type:%d endpoint_id:%d volume:%s ramp_time_ms: %d", endpointType,endpointID,volumeStr,rampTimeMS);
-   
-    // TODO: Parse volume string to support increment/absolute/percent notation
-    int vol = atoi(volumeStr);
+    AFB_DEBUG("Parsed input arguments = stream_id:%d, state:%s", streamID,streamStateStr);
+    
+    StreamInfoT * pStreamInfo = GetStream(streamID);
+    if (pStreamInfo == NULL) {
+        afb_req_fail_f(req, "Stream not found", "Specified stream not found stream_id -> %d",streamID);
+        return;
+    }
 
-    policyAllowed = Policy_SetVolume(endpointType, endpointID, volumeStr, rampTimeMS); // TODO: Potentially retrieve modified value by policy (e.g. volume limit)
-    if (!policyAllowed)
+    // Check if there is already an existing context for this client
+    AHLClientCtxT * pClientCtx = afb_req_context_get(req); // Retrieve client-specific data structure
+    if (pClientCtx == NULL)
     {
-        afb_req_fail(req, "Audio policy violation", "Set volume not allowed in current context");
+        afb_req_fail(req, "Bad state", "No client context associated with the request (is there an opened stream by this client?)");
         return;
     }
 
-     // TODO: Cache during device enumeration for efficiency
-    EndpointInfoT * pEndpointInfo = GetEndpointInfo(endpointID,endpointType);
-    if (pEndpointInfo == NULL)
+    // Verify that this client can control the stream
+    int iStreamAccessControl = CheckStreamAccessControl( pClientCtx, streamID );
+    if (iStreamAccessControl == AHL_ACCESS_CONTROL_DENIED)
     {
-        afb_req_fail_f(req, "Endpoint not found", "Endpoint information not found for id:%d type%d",endpointID,endpointType);
+        afb_req_fail(req, "Access control denied", "Set stream state not allowed in current client context");
         return;
     }
 
-    // Using audio role available from endpoint to target the right HAL control (build string based on convention)
-    char halControlName[AUDIOHL_MAXHALCONTROLNAME_LENGTH];
-    strncpy(halControlName,pEndpointInfo->audioRole,AUDIOHL_MAXHALCONTROLNAME_LENGTH);
-    strcat(halControlName,"_Ramp"); // Or _Vol for direct control (no ramping)
+    StreamStateT streamState = StreamStateToEnum(streamStateStr);
+#ifndef AHL_DISCONNECT_POLICY  
+    json_object *pPolicyStreamJ = NULL;
+    err = PolicyStreamStructToJSON(pStreamInfo, &pPolicyStreamJ);
+    if (err == AHL_POLICY_UTIL_FAIL)
+    {
+        afb_req_fail(req, "Audio policy violation", "Unable to get JSON object for Policy_SetStreamState");
+        return;
+    } 
 
-    // Set endpoint volume using HAL services (leveraging ramps etc.)
-    json_object *j_response, *j_query = NULL;
- 
-    // Package query
-    err = wrap_json_pack(&j_query,"{s:s,s:i}","label",halControlName, "val",vol);
+    json_object *paramJ= json_object_new_int(streamState);
+    json_object_object_add(pPolicyStreamJ, "arg_stream_state", paramJ);
+
+    int policyAllowed = Policy_SetStreamState(pPolicyStreamJ);    
+    if (policyAllowed == AHL_POLICY_REJECT)
+    {
+        afb_req_fail(req, "Audio policy violation", "Change stream state not allowed in current context");
+        return; 
+    }
+#else
+    // Simulate that policy returns target state (accepted)
+    pStreamInfo->streamState = streamState;
+#endif
+
+    afb_req_success(req, NULL, "Set stream state");
+ }
+
+ PUBLIC void audiohlapi_set_stream_mute(struct afb_req req)
+ {
+    json_object *queryJ = NULL;
+    streamID_t streamID = AHL_UNDEFINED;
+    char * pMuteStr = NULL;
+    
+    queryJ = afb_req_json(req);
+    int err = wrap_json_unpack(queryJ, "{s:i,s:s}", "stream_id", &streamID,"mute",&pMuteStr);
     if (err) {
-        afb_req_fail_f(req, "Invalid query for HAL ctlset", "Invalid query for HAL ctlset: %s",json_object_to_json_string(j_query));
+        afb_req_fail_f(req, "Invalid arguments", "Args not a valid json object query=%s", json_object_get_string(queryJ));
+        return;
+    }
+    AFB_DEBUG("Parsed input arguments = stream_id:%d, mute:%s", streamID,pMuteStr);
+
+    StreamInfoT * pStreamInfo = GetStream(streamID);
+    if (pStreamInfo == NULL) {
+        afb_req_fail_f(req, "Stream not found", "Specified stream not currently active stream_id -> %d",streamID);
+        return;
+    }
+
+    // Check if there is already an existing context for this client
+    AHLClientCtxT * pClientCtx = afb_req_context_get(req); // Retrieve client-specific data structure
+    if (pClientCtx == NULL)
+    {
+        afb_req_fail(req, "Bad state", "No client context associated with the request (is there an opened stream by this client?)");
+        return;
+    }
+
+    // Verify that this client can control the stream
+    int iStreamAccessControl = CheckStreamAccessControl( pClientCtx, streamID );
+    if (iStreamAccessControl == AHL_ACCESS_CONTROL_DENIED)
+    {
+        afb_req_fail(req, "Access control denied", "Set stream mute state not allowed in current client context");
+        return;
+    }
+
+
+    StreamMuteT muteState = StreamMuteToEnum(pMuteStr);
+#ifndef AHL_DISCONNECT_POLICY 
+    json_object *pPolicyStreamJ = NULL;
+    err = PolicyStreamStructToJSON(pStreamInfo, &pPolicyStreamJ);
+    if (err == AHL_POLICY_UTIL_FAIL)
+    {
+        afb_req_fail(req, "Audio policy violation", "Unable to get JSON object for Policy_SetStreamMute");
+        return;
+    } 
+
+    json_object *paramJ= json_object_new_int(muteState);
+    json_object_object_add(pPolicyStreamJ, "mute_state", paramJ);
+
+    int policyAllowed = Policy_SetStreamMute(pPolicyStreamJ);    
+    if (policyAllowed == AHL_POLICY_REJECT)
+    {
+        afb_req_fail(req, "Audio policy violation", "Mute stream not allowed in current context");
         return;
     }
+#else
+    // Simulate that policy returns target state (accepted)
+    pStreamInfo->streamMute = muteState;
+#endif
+
+    afb_req_success(req, NULL, "Set stream mute completed");
+ }
 
-    // Set the volume using the HAL
-    err = afb_service_call_sync(pEndpointInfo->halAPIName, "ctlset", j_query, &j_response);
+ PUBLIC void audiohlapi_get_stream_info(struct afb_req req)
+ {
+    json_object *queryJ = NULL;
+    streamID_t streamID = AHL_UNDEFINED;
+    json_object * streamInfoJ = NULL;
+    
+    queryJ = afb_req_json(req);
+    int err = wrap_json_unpack(queryJ, "{s:i}", "stream_id", &streamID);
     if (err) {
-        afb_req_fail_f(req, "HAL ctlset failure", "Could not ctlset on HAL: %s",pEndpointInfo->halAPIName);
+        afb_req_fail_f(req, "Invalid arguments", "Args not a valid json object query=%s", json_object_get_string(queryJ));
         return;
     }
-    AFB_DEBUG("HAL ctlset response=%s", json_object_to_json_string(j_response));
- 
-    afb_req_success(req, NULL, "Set volume completed");
-}
+    AFB_DEBUG("Parsed input arguments = stream_id:%d", streamID);
 
-PUBLIC void audiohlapi_get_volume(struct afb_req req)
+    StreamInfoT * pStreamInfo = GetStream(streamID);
+    if (pStreamInfo == NULL) {
+        afb_req_fail_f(req, "Stream not found", "Specified stream not currently active stream_id -> %d",streamID);
+        return;
+    }
+
+    StreamInfoStructToJSON(&streamInfoJ,pStreamInfo);
+
+    afb_req_success(req, streamInfoJ, "Get stream info completed");
+ }
+
+PUBLIC void audiohlapi_set_volume(struct afb_req req)
 {
     json_object *queryJ = NULL;
-    endpointID_t endpointID = UNDEFINED_ID;
+    endpointID_t endpointID = AHL_UNDEFINED;
+    char * pEndpointTypeStr = NULL;
     EndpointTypeT endpointType = ENDPOINTTYPE_MAXVALUE;
-    json_object *volumeJ;
+    char * volumeStr = NULL;
     
     queryJ = afb_req_json(req);
-    int err = wrap_json_unpack(queryJ, "{s:i,s:i}", "endpoint_type", &endpointType,"endpoint_id",&endpointID);
+    int err = wrap_json_unpack(queryJ, "{s:s,s:i,s:s}", "endpoint_type", &pEndpointTypeStr,"endpoint_id",&endpointID,"volume",&volumeStr);
     if (err) {
         afb_req_fail_f(req, "Invalid arguments", "Args not a valid json object query=%s", json_object_get_string(queryJ));
         return;
     }
-    AFB_DEBUG("Parsed input arguments = endpoint_type:%d endpoint_id:%d", endpointType,endpointID);
+    AFB_DEBUG("Parsed input arguments = endpoint_type:%s endpoint_id:%d volume:%s", pEndpointTypeStr,endpointID,volumeStr);
+    endpointType = EndpointTypeToEnum(pEndpointTypeStr);
 
-    // TODO: Cache during device enumeration for efficiency
     EndpointInfoT * pEndpointInfo = GetEndpointInfo(endpointID,endpointType);
     if (pEndpointInfo == NULL)
     {
@@ -424,221 +1033,545 @@ PUBLIC void audiohlapi_get_volume(struct afb_req req)
         return;
     }
 
-    // Using audio role available from endpoint to target the right HAL control (build string based on convention)
-    char halControlName[AUDIOHL_MAXHALCONTROLNAME_LENGTH];
-    strncpy(halControlName,pEndpointInfo->audioRole,AUDIOHL_MAXHALCONTROLNAME_LENGTH);
-    strcat(halControlName,"_Vol"); // Use current value, not ramp target
+#ifndef AHL_DISCONNECT_POLICY
+    json_object *pPolicyEndpointJ = NULL;
+    err = PolicyEndpointStructToJSON(pEndpointInfo, &pPolicyEndpointJ);
+    if (err == AHL_POLICY_UTIL_FAIL)
+    {
+        afb_req_fail(req, "Audio policy violation", "Unable to get JSON object for Policy_SetVolume");
+        return;
+    } 
 
-    // Set endpoint volume using HAL services (leveraging ramps etc.)
-    json_object *j_response, *j_query = NULL;
- 
-    // Package query
-    err = wrap_json_pack(&j_query,"{s:s}","label",halControlName);
-    if (err) {
-        afb_req_fail_f(req, "Invalid query for HAL ctlget", "Invalid query for HAL ctlget: %s",json_object_to_json_string(j_query));
+    json_object *paramJ= json_object_new_string(volumeStr);
+    json_object_object_add(pPolicyEndpointJ, "arg_volume", paramJ);
+
+    int policyAllowed = Policy_SetVolume(pPolicyEndpointJ);
+    if (!policyAllowed)
+    {
+        afb_req_fail(req, "Audio policy violation", "Set volume not allowed in current context");
         return;
     }
+#else
+    // Simulate that policy returns target state (accepted)
+    pEndpointInfo->iVolume = atoi(volumeStr);
+#endif
+ 
+    afb_req_success(req, NULL, "Set volume completed");
+}
 
-    // Set the volume using the HAL
-    err = afb_service_call_sync(pEndpointInfo->halAPIName, "ctlget", j_query, &j_response);
+PUBLIC void audiohlapi_get_volume(struct afb_req req)
+{
+    json_object *queryJ = NULL;
+    endpointID_t endpointID = AHL_UNDEFINED;
+    char * pEndpointTypeStr = NULL;
+    EndpointTypeT endpointType = ENDPOINTTYPE_MAXVALUE;
+    json_object * volumeJ = NULL;
+    
+    queryJ = afb_req_json(req);
+    int err = wrap_json_unpack(queryJ, "{s:s,s:i}", "endpoint_type", &pEndpointTypeStr,"endpoint_id",&endpointID);
     if (err) {
-        afb_req_fail_f(req, "HAL ctlget failure", "Could not ctlget on HAL: %s",pEndpointInfo->halAPIName);
+        afb_req_fail_f(req, "Invalid arguments", "Args not a valid json object query=%s", json_object_get_string(queryJ));
         return;
     }
-    AFB_INFO("HAL ctlget response=%s", json_object_to_json_string(j_response));
+    AFB_DEBUG("Parsed input arguments = endpoint_type:%s endpoint_id:%d", pEndpointTypeStr,endpointID);
+    endpointType = EndpointTypeToEnum(pEndpointTypeStr);
 
-    // Parse response
-    json_object * jRespObj = NULL;
-    json_object_object_get_ex(j_response, "response", &jRespObj);
-    json_object * jVal = NULL;
-    json_object_object_get_ex(jRespObj, "val", &jVal);
-    int val1 = 0, val2 = 0; // Why 2 values?      
-    err = wrap_json_unpack(jVal, "[ii]", &val1, &val2);
-    if (err) {
-        afb_req_fail_f(req,"Volume retrieve failed", "Could not retrieve volume value -> %s", json_object_get_string(jVal));
+    EndpointInfoT * pEndpointInfo = GetEndpointInfo(endpointID,endpointType);
+    if (pEndpointInfo == NULL)
+    {
+        afb_req_fail_f(req, "Endpoint not found", "Endpoint information not found for id:%d type%d",endpointID,endpointType);
         return;
     }
 
-    volumeJ = json_object_new_double((double)val1);
+    volumeJ = json_object_new_int(pEndpointInfo->iVolume);
 
     afb_req_success(req, volumeJ, "Retrieved volume value");
 }
 
-PUBLIC void audiohlapi_set_property(struct afb_req req)
+// Properties 
+PUBLIC void audiohlapi_get_endpoint_info(struct afb_req req)
 {
     json_object *queryJ = NULL;
-    endpointID_t endpointID = UNDEFINED_ID;
+    endpointID_t endpointID = AHL_UNDEFINED;
+    char * pEndpointTypeStr = NULL;
     EndpointTypeT endpointType = ENDPOINTTYPE_MAXVALUE;
-    char * propertyName = NULL;
-    char * propValueStr = NULL;
-    int rampTimeMS = 0;
-    int policyAllowed = 0;
     
     queryJ = afb_req_json(req);
-    int err = wrap_json_unpack(queryJ, "{s:i,s:i,s:s,s:s,s?i}", "endpoint_type", &endpointType,"endpoint_id",&endpointID,"property_name",&propertyName,"value",&propValueStr,"ramp_time_ms",&rampTimeMS);
+    int err = wrap_json_unpack(queryJ, "{s:s,s:i}", "endpoint_type", &pEndpointTypeStr,"endpoint_id",&endpointID);
     if (err) {
         afb_req_fail_f(req, "Invalid arguments", "Args not a valid json object query=%s", json_object_get_string(queryJ));
         return;
     }
-    AFB_DEBUG("Parsed input arguments = endpoint_type:%d endpoint_id:%d property_name:%s value:%s ramp_time_ms:%d", endpointType,endpointID,propertyName,propValueStr,rampTimeMS);
-  
-    // TODO: Parse property value string to support increment/absolute/percent notation
+    AFB_DEBUG("Parsed input arguments = endpoint_type:%s endpoint_id:%d", pEndpointTypeStr,endpointID);
+    endpointType = EndpointTypeToEnum(pEndpointTypeStr);
 
-    // Call policy to allow custom policy actions in current context
-    policyAllowed = Policy_SetProperty(endpointType, endpointID, propertyName, propValueStr, rampTimeMS); // TODO: Potentially retrieve modified value by policy (e.g. parameter limit) 
-    if (!policyAllowed)
+    EndpointInfoT * pEndpointInfo = GetEndpointInfo(endpointID,endpointType);
+    if (pEndpointInfo == NULL)
     {
-        afb_req_fail(req, "Audio policy violation", "Set endpoint property not allowed in current context");
+        afb_req_fail_f(req, "Endpoint not found", "Endpoint information not found for id:%d type%d",endpointID,endpointType);
         return;
     }
 
-    // TODO: Set endpoint property (dispatch on right service target) 
-    // Property targets (Internal,Wwise,Fiberdyne) (e.g. Wwise.ParamX, Fiberdyne.ParamY, Internal.ParamZ)
-    // Cache value in property list
-    // TBD
+    json_object *endpointInfoJ = NULL;
+    EndpointInfoStructToJSON(&endpointInfoJ,pEndpointInfo);
 
-    afb_req_success(req, NULL, "Set property completed");
+    afb_req_success(req, endpointInfoJ, "Retrieved endpoint information and properties");
 }
 
-PUBLIC void audiohlapi_get_property(struct afb_req req)
+PUBLIC void audiohlapi_set_property(struct afb_req req)
 {
     json_object *queryJ = NULL;
-    endpointID_t endpointID = UNDEFINED_ID;
+    endpointID_t endpointID = AHL_UNDEFINED;
+    char * pEndpointTypeStr = NULL;
     EndpointTypeT endpointType = ENDPOINTTYPE_MAXVALUE;
     char * propertyName = NULL;
-    json_object *propertyValJ;
-    double value = 0.0;
+    json_object * propValueJ = NULL;
     
     queryJ = afb_req_json(req);
-    int err = wrap_json_unpack(queryJ, "{s:i,s?i,s:s}", "endpoint_type", &endpointType,"endpoint_id",&endpointID,"property_name",&propertyName);
+    int err = wrap_json_unpack(queryJ, "{s:s,s:i,s:s,s:o}", "endpoint_type", &pEndpointTypeStr,"endpoint_id",&endpointID,"property_name",&propertyName,"value",&propValueJ);
     if (err) {
         afb_req_fail_f(req, "Invalid arguments", "Args not a valid json object query=%s", json_object_get_string(queryJ));
         return;
     }
-    AFB_DEBUG("Parsed input arguments = endpoint_type:%d endpoint_id:%d property_name:%s", endpointType,endpointID,propertyName);
+    AFB_DEBUG("Parsed input arguments = endpoint_type:%s endpoint_id:%d property_name:%s", pEndpointTypeStr,endpointID,propertyName);
+    endpointType = EndpointTypeToEnum(pEndpointTypeStr);
 
-    // TODO: Retrieve cached property value
+    EndpointInfoT * pEndpointInfo = GetEndpointInfo(endpointID,endpointType);
+    if (pEndpointInfo == NULL)
+    {
+        afb_req_fail_f(req, "Endpoint not found", "Endpoint information not found for id:%d type%d",endpointID,endpointType);
+        return;
+    }
 
-    value = 93.0; // TODO: Get actual property value 
-    propertyValJ = json_object_new_double(value);
+#ifndef AHL_DISCONNECT_POLICY  
+    json_object *pPolicyEndpointJ = NULL;
+    err = PolicyEndpointStructToJSON(pEndpointInfo, &pPolicyEndpointJ);
+    if (err == AHL_POLICY_UTIL_FAIL)
+    {
+        afb_req_fail(req, "Audio policy violation", "Unable to get JSON object for Policy_SetVolume");
+        return;
+    } 
 
-    afb_req_success(req, propertyValJ, "Retrieved property value");
+    json_object *paramJ= json_object_new_string(propertyName);
+    json_object_object_add(pPolicyEndpointJ, "arg_property_name", paramJ);
+    json_object_object_add(pPolicyEndpointJ, "arg_property_value", propValueJ);
+
+    // Call policy to allow custom policy actions in current context
+    int policyAllowed = Policy_SetProperty(pPolicyEndpointJ);     
+    if (!policyAllowed)
+    {
+        afb_req_fail(req, "Audio policy violation", "Set endpoint property not allowed in current context");
+        return;
+    }
+#else
+    // Simulate that policy returns target state (accepted)
+    if (pEndpointInfo->pPropTable)
+        g_hash_table_insert(pEndpointInfo->pPropTable, propertyName, propValueJ);
+#endif
+
+    //afb_event_push(g_AHLCtx.policyCtx.propertyEvent,queryJ);
+
+    afb_req_success(req, NULL, "Set property completed");
 }
 
-PUBLIC void audiohlapi_set_state(struct afb_req req)
+PUBLIC void audiohlapi_get_property(struct afb_req req)
 {
     json_object *queryJ = NULL;
-    endpointID_t endpointID = UNDEFINED_ID;
+    endpointID_t endpointID = AHL_UNDEFINED;
+    char * pEndpointTypeStr = NULL;
     EndpointTypeT endpointType = ENDPOINTTYPE_MAXVALUE;
-    char * stateName = NULL;
-    char * stateValue = NULL;
-    int policyAllowed = 0;
+    char * propertyName = NULL;
     
     queryJ = afb_req_json(req);
-    int err = wrap_json_unpack(queryJ, "{s:i,s:i,s:s,s:s}", "endpoint_type", &endpointType,"endpoint_id",&endpointID,"state_name",&stateName,"state_value",&stateValue);
+    int err = wrap_json_unpack(queryJ, "{s:s,s:i,s:s}", "endpoint_type", &pEndpointTypeStr,"endpoint_id",&endpointID,"property_name",&propertyName);
     if (err) {
         afb_req_fail_f(req, "Invalid arguments", "Args not a valid json object query=%s", json_object_get_string(queryJ));
         return;
     }
-    AFB_DEBUG("Parsed input arguments = endpoint_type:%d endpoint_id:%d state_name:%s state_value:%s", endpointType,endpointID,stateName,stateValue);
+    AFB_DEBUG("Parsed input arguments = endpoint_type:%s endpoint_id:%d property_name:%s", pEndpointTypeStr,endpointID,propertyName);
+    endpointType = EndpointTypeToEnum(pEndpointTypeStr);
 
-    // Check that state provided is within list of known state for this config
-    char * pDefaultStateValue = g_hash_table_lookup(g_AHLCtx.pDefaultStatesHT, stateName);
-    if (pDefaultStateValue == NULL)
+    EndpointInfoT * pEndpointInfo = GetEndpointInfo(endpointID,endpointType);
+    if (pEndpointInfo == NULL)
     {
-        afb_req_fail_f(req, "Invalid arguments", "State provided is not known to configuration query=%s", stateName);
+        afb_req_fail_f(req, "Endpoint not found", "Endpoint information not found for id:%d type%d",endpointID,endpointType);
         return;
     }
 
-    // Call policy to allow custom policy actions in current context
-    policyAllowed = Policy_SetState(endpointType, endpointID, stateName, stateValue); // TODO: Potentially retrieve modified value by policy (e.g. state change) 
-    if (!policyAllowed)
-    {
-        afb_req_fail(req, "Audio policy violation", "Set endpoint state not allowed in current context");
+    // Retrieve cached property value
+    json_object * propertyValJ = (json_object *)g_hash_table_lookup(pEndpointInfo->pPropTable,propertyName);
+    if (propertyValJ == NULL) {
+        afb_req_fail_f(req, "Property not found", "Property information not found: %s",propertyName);
         return;
     }
 
-    // Change the state of the endpoint as requested
+    json_object_get(propertyValJ); // Increase ref count so that framework does not free our JSON object
+    //AFB_WARNING("properties %s", json_object_get_string(propertyValJ));
+    //json_object_get(propertyValJ); // Increase ref count so that framework does not free our JSON object
 
-    afb_req_success(req, NULL, "Set endpoint state completed");
+    afb_req_success(req, propertyValJ, "Retrieved property value");
 }
 
-PUBLIC void audiohlapi_get_state(struct afb_req req)
+// Audio related events
+
+PUBLIC void audiohlapi_get_list_actions(struct afb_req req)
 {
     json_object *queryJ = NULL;
-    endpointID_t endpointID = UNDEFINED_ID;
-    EndpointTypeT endpointType = ENDPOINTTYPE_MAXVALUE;
-    json_object *stateValJ;
-    char * stateName = NULL;
-    char * stateValue = NULL;
+    char * audioRole = NULL;
+    json_object * roleActionsJ = NULL;
     
     queryJ = afb_req_json(req);
-    int err = wrap_json_unpack(queryJ, "{s:i,s:i,s:s}", "endpoint_type", &endpointType,"endpoint_id",&endpointID,"state_name",&stateName);
+    int err = wrap_json_unpack(queryJ, "{s:s}", "audio_role",&audioRole);
     if (err) {
         afb_req_fail_f(req, "Invalid arguments", "Args not a valid json object query=%s", json_object_get_string(queryJ));
         return;
     }
-    AFB_DEBUG("Parsed input arguments = endpoint_type:%d endpoint_id:%d state_name:%s", endpointType,endpointID,stateName);
+    AFB_DEBUG("Parsed input arguments = audio_role:%s",audioRole);
 
-    stateValJ = json_object_new_string(stateValue);
-    // return cached value
+    // Build and return list of actions for specific audio role
+    RoleInfoT * pRole = GetRole(audioRole);
+    if ( pRole == NULL )
+    {
+        afb_req_fail_f(req, "Invalid audio role", "Audio role was not found in configuration -> %s",audioRole);
+        return;
+    }
 
-    afb_req_success(req, stateValJ, "Retrieved state value");
+    roleActionsJ = json_object_new_array();
+    if (pRole->pActionList) {
+        int iNumberActions = pRole->pActionList->len;
+        for ( int i = 0 ; i < iNumberActions; i++)
+        {
+            char * pActionName = g_ptr_array_index(pRole->pActionList,i);
+            json_object * actionJ = json_object_new_string(pActionName);
+            json_object_array_add(roleActionsJ, actionJ);
+        }
+    }
+    
+    afb_req_success(req, roleActionsJ, "Retrieved action list for audio role");
 }
 
-// Sound events
-PUBLIC void audiohlapi_post_sound_event(struct afb_req req)
+PUBLIC void audiohlapi_post_action(struct afb_req req)
 {
     json_object *queryJ = NULL;
-    char * eventName = NULL;
-    char * mediaName = NULL;
+    char * actionName = NULL;  
     char * audioRole = NULL;
-    json_object *audioContext = NULL;
-    int policyAllowed = 0;
+    char * mediaName = NULL;
+    json_object *actionContext = NULL;
     
     queryJ = afb_req_json(req);
-    int err = wrap_json_unpack(queryJ, "{s:s,s:s,s?s,s?o}", "event_name", &eventName,"audio_role",&audioRole,"media_name",&mediaName,"audio_context",&audioContext);
+    int err = wrap_json_unpack(queryJ, "{s:s,s:s,s?s,s?o}", "action_name", &actionName,"audio_role",&audioRole,"media_name",&mediaName,"action_context",&actionContext);
     if (err) {
         afb_req_fail_f(req, "Invalid arguments", "Args not a valid json object query=%s", json_object_get_string(queryJ));
         return;
     }
-    AFB_DEBUG("Parsed input arguments = event_name:%s audio_role:%s media_name:%s", eventName,audioRole,mediaName);
+    AFB_DEBUG("Parsed input arguments = action_name:%s audio_role:%s", actionName,audioRole);
 
+    // Verify if known action for audio role
+    RoleInfoT * pRole = GetRole(audioRole);
+    if ( pRole == NULL )
+    {
+        afb_req_fail_f(req, "Invalid audio role", "Audio role was not found in configuration -> %s",audioRole);
+        return;
+    }
+
+    // Check to find specific action
+    int iActionFound = 0;
+    if (pRole->pActionList) {
+        int iNumberActions = pRole->pActionList->len;
+        char * pTargetActionName = NULL;
+        for ( int i = 0 ; i < iNumberActions; i++)
+        {
+            pTargetActionName = g_ptr_array_index(pRole->pActionList,i);
+            if ( strcasecmp(pTargetActionName,actionName)==0) {
+                iActionFound = 1;
+                break;
+            }
+        }
+    }
+
+    if (!iActionFound) {
+        afb_req_fail_f(req, "Event not found for audio role", "Event -> %s not found for role:%s",actionName,audioRole);
+        return;
+    }
+
+#ifndef AHL_DISCONNECT_POLICY  
     // Call policy to allow custom policy actions in current context (e.g. cancel playback)
-    policyAllowed = Policy_PostSoundEvent(eventName, audioRole, mediaName, (void*)audioContext); // TODO: Potentially retrieve modified value by policy (e.g. change media) 
+    int policyAllowed = Policy_PostAction(queryJ); 
     if (!policyAllowed)
     {
-        afb_req_fail(req, "Audio policy violation", "Post sound event not allowed in current context");
+        afb_req_fail(req, "Audio policy violation", "Post sound action not allowed in current context");
         return;
     }
+#endif
 
-    // TODO: Post sound event to rendering services (e.g. gstreamer file player wrapper or simple ALSA player)
+    //afb_event_push(g_AHLCtx.policyCtx.postEvent,queryJ);
 
-    afb_req_success(req, NULL, "Posted sound event");
+    afb_req_success(req, NULL, "Posted sound action");
  }
 
 
 // Monitoring
 PUBLIC void audiohlapi_subscribe(struct afb_req req)
 {
-    // json_object *queryJ = NULL;
-    
-    // queryJ = afb_req_json(req);
+    json_object *queryJ = NULL;
+    json_object * eventArrayJ = NULL;
 
-    // TODO: Iterate through array length, parsing the string value to actual events
-    // TODO: Subscribe to appropriate events from other services
+    queryJ = afb_req_json(req);
+    int err = wrap_json_unpack(queryJ, "{s:o}", "events", &eventArrayJ);
+    if (err) {
+        afb_req_fail_f(req, "Invalid arguments", "Args not a valid json object query=%s", json_object_get_string(queryJ));
+        return;
+    }
+    
+    int iNumEvents = json_object_array_length(eventArrayJ);
+    for (int i = 0; i < iNumEvents; i++)
+    {
+        char * pEventName = NULL;
+        json_object * jEvent = json_object_array_get_idx(eventArrayJ,i);
+        pEventName = (char *)json_object_get_string(jEvent);
+        if(pEventName == NULL) {
+            afb_req_fail(req, "failed", "Invalid event");
+			return;
+        }
+        else if(!strcasecmp(pEventName, AHL_ENDPOINT_PROPERTY_EVENT)) {
+			afb_req_subscribe(req, g_AHLCtx.policyCtx.propertyEvent);
+            AFB_DEBUG("Client subscribed to endpoint property events");
+		}
+        else if(!strcasecmp(pEventName, AHL_ENDPOINT_VOLUME_EVENT)) {
+			afb_req_subscribe(req, g_AHLCtx.policyCtx.volumeEvent);
+            AFB_DEBUG("Client subscribed to endpoint volume events");
+		}
+        else if(!strcasecmp(pEventName, AHL_POST_ACTION_EVENT)) {
+			afb_req_subscribe(req, g_AHLCtx.policyCtx.postActionEvent);
+            AFB_DEBUG("Client subscribed to post event calls events");
+		}
+        else {
+			afb_req_fail(req, "failed", "Invalid event");
+			return;
+		}
+    }
 
     afb_req_success(req, NULL, "Subscribe to events finished");
 }
 
 PUBLIC void audiohlapi_unsubscribe(struct afb_req req)
 {
-    // json_object *queryJ = NULL;
-    
-    // queryJ = afb_req_json(req);
+    json_object *queryJ = NULL;
+    json_object * eventArrayJ = NULL;
 
-    // TODO: Iterate through array length, parsing the string value to actual events
-    // TODO: Unsubscribe to appropriate events from other services
+    queryJ = afb_req_json(req);
+    int err = wrap_json_unpack(queryJ, "{s:o}", "events", &eventArrayJ);
+    if (err) {
+        afb_req_fail_f(req, "Invalid arguments", "Args not a valid json object query=%s", json_object_get_string(queryJ));
+        return;
+    }
+    
+    int iNumEvents = json_object_array_length(eventArrayJ);
+    for (int i = 0; i < iNumEvents; i++)
+    {
+        char * pEventName = NULL;
+        json_object * jEvent = json_object_array_get_idx(eventArrayJ,i);
+        pEventName = (char *)json_object_get_string(jEvent);
+        if(pEventName == NULL) {
+            afb_req_fail(req, "failed", "Invalid event");
+			return;
+        }
+        else if(!strcasecmp(pEventName, AHL_ENDPOINT_PROPERTY_EVENT)) {
+			afb_req_unsubscribe(req, g_AHLCtx.policyCtx.propertyEvent);
+            AFB_DEBUG("Client unsubscribed to endpoint property events");
+		}
+        else if(!strcasecmp(pEventName, AHL_ENDPOINT_VOLUME_EVENT)) {
+			afb_req_unsubscribe(req, g_AHLCtx.policyCtx.volumeEvent);
+            AFB_DEBUG("Client unsubscribed to endpoint volume events");
+		}
+        else if(!strcasecmp(pEventName, AHL_POST_ACTION_EVENT)) {
+			afb_req_unsubscribe(req, g_AHLCtx.policyCtx.postActionEvent);
+            AFB_DEBUG("Client unsubscribed to post event calls events");
+		}
+        else {
+			afb_req_fail(req, "failed", "Invalid event");
+			return;
+		}
+    }
 
-    afb_req_success(req, NULL, "Subscribe to events finished");
+    afb_req_success(req, NULL, "Unsubscribe to events finished");
 }
+
+// Since the policy is currently in the same binding, it cannot raise events on its own
+// This is a first step toward isolation, when policy is migrated in its own binding it can simply raise AGL events
+// This binding will register for these policy events and will execute the code below upon event reception
+PUBLIC void audiohlapi_raise_event(json_object * pEventDataJ)
+{
+    char * pEventName = NULL;
+
+    int err = wrap_json_unpack(pEventDataJ,"{s:s}","event_name", &pEventName);
+    if(err)
+    {
+       AFB_ERROR("Unable to retrieve event name");
+       return;
+    }
+
+    if(strcasecmp(pEventName, AHL_ENDPOINT_INIT_EVENT)==0) {
+        char * pAudioRole = NULL;
+        endpointID_t endpointID = AHL_UNDEFINED;
+        EndpointTypeT endpointType = ENDPOINTTYPE_MAXVALUE;
+        int err = wrap_json_unpack(pEventDataJ,"{s:i,s:i,s:s}",
+                            "endpoint_id", &endpointID, 
+                            "endpoint_type", &endpointType,
+                            "audio_role", &pAudioRole);
+        if(err)
+        {
+            AFB_ERROR("Unable to unpack property init event");
+            return;
+        }
+
+        RoleInfoT * pRole = GetRole(pAudioRole);
+        if ( pRole == NULL ){
+            AFB_ERROR("Requested audio role does not exist in current configuration -> %s", pAudioRole);
+            return;
+        }
+    
+        EndpointInfoT * pEndpointInfo = InitEndpointInfo();
+        g_assert_nonnull(pEndpointInfo);
+        PolicyCtxJSONToEndpoint(pEventDataJ,pEndpointInfo);
+
+        err = ReplaceEndpointInfoWithRole(endpointID,endpointType,pRole,pEndpointInfo);        
+        if(err == AHL_FAIL)
+        {
+            AFB_ERROR("Can't update EndpointInfo aborting");
+            return;
+        }
+
+        // Remove event name from object
+        // json_object_object_del(pEventDataJ,"event_name");
+        //afb_event_push(g_AHLCtx.policyCtx.propertyEvent,pEventDataJ); // Not broadcasted to application at this time
+    }
+    else if(strcasecmp(pEventName, AHL_ENDPOINT_PROPERTY_EVENT)==0) {
+        char * pAudioRole = NULL;
+        char * pPropertyName = NULL;
+        endpointID_t endpointID = AHL_UNDEFINED;
+        EndpointTypeT endpointType = ENDPOINTTYPE_MAXVALUE;
+        json_object * propValueJ = NULL;
+        int err = wrap_json_unpack(pEventDataJ,"{s:i,s:i,s:s,s:o,s:s}",
+                            "endpoint_id", &endpointID, 
+                            "endpoint_type", &endpointType,
+                            "property_name", &pPropertyName,
+                            "value",&propValueJ, 
+                            "audio_role", &pAudioRole);
+        if(err)
+        {
+            AFB_ERROR("Unable to unpack property event");
+            return;
+        }
+        RoleInfoT * pRole = GetRole(pAudioRole);
+        if ( pRole == NULL ){
+            AFB_ERROR("Requested audio role does not exist in current configuration -> %s", pAudioRole);
+            return;
+        }
+        EndpointInfoT * pEndpointInfo = GetEndpointInfoWithRole(endpointID,endpointType,pRole);
+        // update property value
+        if (pEndpointInfo->pPropTable)
+        {
+            json_type jType = json_object_get_type(propValueJ);
+            switch (jType) {
+                case json_type_double:
+                    Add_Endpoint_Property_Double(pEndpointInfo,pPropertyName,json_object_get_double(propValueJ));
+                    break;
+                case json_type_int:
+                    Add_Endpoint_Property_Int(pEndpointInfo,pPropertyName,json_object_get_int(propValueJ));
+                    break;
+                case json_type_string:
+                    Add_Endpoint_Property_String(pEndpointInfo,pPropertyName,json_object_get_string(propValueJ));
+                    break;
+                default:
+                    AFB_ERROR("Invalid property argument Property value not a valid json object query=%s", json_object_get_string(propValueJ));
+                    return ;
+            }
+        }
+        // Remove event name from object
+        json_object_object_del(pEventDataJ,"event_name");
+        afb_event_push(g_AHLCtx.policyCtx.propertyEvent,pEventDataJ);
+    }
+    else if(strcasecmp(pEventName, AHL_ENDPOINT_VOLUME_EVENT)==0) {
+        char * pAudioRole = NULL;
+        endpointID_t endpointID = AHL_UNDEFINED;
+        EndpointTypeT endpointType = ENDPOINTTYPE_MAXVALUE;
+        int iVolume = 0;
+        int err = wrap_json_unpack(pEventDataJ,"{s:i,s:i,s:i,s:s}",
+                            "endpoint_id", &endpointID, 
+                            "endpoint_type", &endpointType,
+                            "value",&iVolume, 
+                            "audio_role", &pAudioRole);
+        if(err)
+        {
+            AFB_ERROR("Unable to unpack volume event data");
+            return;
+        }
+        RoleInfoT * pRole = GetRole(pAudioRole);
+        if ( pRole == NULL ){
+            AFB_ERROR("Requested audio role does not exist in current configuration -> %s", pAudioRole);
+            return;
+        }
+        EndpointInfoT * pEndpointInfo = GetEndpointInfoWithRole(endpointID,endpointType,pRole);
+        // update volume value
+        pEndpointInfo->iVolume = iVolume;
+        // Remove event name from object
+        json_object_object_del(pEventDataJ,"event_name");
+        afb_event_push(g_AHLCtx.policyCtx.volumeEvent,pEventDataJ);
+    }
+    else if(strcasecmp(pEventName, AHL_POST_ACTION_EVENT)==0) {
+        // Remove event name from object
+        json_object_object_del(pEventDataJ,"event_name");
+        afb_event_push(g_AHLCtx.policyCtx.postActionEvent,pEventDataJ);
+    }
+    else if(strcasecmp(pEventName, AHL_STREAM_STATE_EVENT)==0) {
+        streamID_t streamID = AHL_UNDEFINED;
+        StreamEventT streamEvent = STREAM_EVENT_MAXVALUE;
+        int err = wrap_json_unpack(pEventDataJ,"{s:i,s:i}",
+                            "stream_id", &streamID, 
+                            "state_event", &streamEvent);
+        if(err)
+        {
+            AFB_ERROR("Unable to unpack stream event data");
+            return;
+        }
+
+        StreamInfoT * pStreamInfo = GetStream(streamID);
+        if (pStreamInfo == NULL) {
+            AFB_ERROR("Specified stream not currently active stream_id -> %d",streamID);
+            return;
+        }
+
+        // update streamstate value
+        switch (streamEvent) {
+            case STREAM_EVENT_START:   
+                pStreamInfo->streamState = STREAM_STATE_RUNNING;
+                break;
+            case STREAM_EVENT_STOP:   
+                pStreamInfo->streamState = STREAM_STATE_IDLE;      
+                break;
+            case STREAM_EVENT_PAUSE: 
+                pStreamInfo->streamState = STREAM_STATE_PAUSED;     
+                break;
+            case STREAM_EVENT_RESUME:       
+                pStreamInfo->streamState = STREAM_STATE_RUNNING;    
+                break;
+            case STREAM_EVENT_MUTED:    
+                pStreamInfo->streamMute = STREAM_MUTED;  
+                break;
+            case STREAM_EVENT_UNMUTED:    
+                pStreamInfo->streamMute = STREAM_UNMUTED;
+                break;
+            default:
+                AFB_ERROR("Unknown stream event");
+        }
+        
+        // Remove event name from object
+        json_object_object_del(pEventDataJ,"event_name");
+        AFB_ERROR("pEventDataJ=%s", json_object_get_string(pEventDataJ));
+        afb_event_push(pStreamInfo->streamStateEvent,pEventDataJ);   
+    }
+    else {        
+        AFB_ERROR("Unknown event name");        
+    }        
+}
\ No newline at end of file
diff --git a/src/ahl-binding.h b/src/ahl-binding.h
index 2422963..9b4c37e 100644
--- a/src/ahl-binding.h
+++ b/src/ahl-binding.h
@@ -1,6 +1,5 @@
 /*
  * Copyright (C) 2017 "Audiokinetic Inc"
- * Author Francois Thibault <fthibault@audiokinetic.com>
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -19,55 +18,49 @@
 #define AHL_BINDING_INCLUDE
 
 #define AFB_BINDING_VERSION 2
-#include <afb/afb-binding.h>
+
+//#define AHL_DISCONNECT_POLICY // define for debugging HLB in standalone only
+
 #include <json-c/json.h>
 #include <glib.h>
 
+#include <afb/afb-binding.h>
 #include "ahl-interface.h"
+#include "ahl-policy-utils.h"
+
 
 #ifndef PUBLIC
   #define PUBLIC
 #endif
 
-/////////////// Binding private information //////////////////
-
-#define AUDIOHL_MAX_DEVICE_URI_LENGTH 256
-#define AUDIOHL_MAX_DEVICE_NAME_LENGTH 256
-#define AUDIOHL_MAX_AUDIOROLE_LENGTH 128
-#define AUDIOHL_MAX_HALAPINAME_LENGTH 64
-#define AUDIOHL_POLICY_ACCEPT 1
-#define AUDIOHL_POLICY_REJECT 0
-
-typedef struct EndpointInfo
-{
-    endpointID_t    endpointID;     // Unique endpoint ID (per type)
-    EndpointTypeT   type;           // Source or sink device
-    char            deviceName[AUDIOHL_MAX_DEVICE_NAME_LENGTH];   // Device name for applications to display
-    char            deviceURI[AUDIOHL_MAX_DEVICE_URI_LENGTH];     // Associated URI 
-    DeviceURITypeT  deviceURIType;  // Device URI type (includes audio domain information)
-    char            audioRole[AUDIOHL_MAX_AUDIOROLE_LENGTH];     // Audio role that registered this endpoint -> private
-    char            halAPIName[AUDIOHL_MAX_AUDIOROLE_LENGTH];    // HAL associated with the device (for volume control) -> private
-    int             cardNum;                                     // HW card number -> private
-    int             deviceNum;                                   // HW device number -> private                                   
-    int             subDeviceNum;                                // HW sub device number -> private
-    // Cached endpoint properties
-    GHashTable *    pStatesHT;                                   // Keep all known states in key value pairs
-} EndpointInfoT;
-
-typedef struct StreamInfo {
-    streamID_t      streamID;
-    EndpointInfoT   endpointInfo;
-} StreamInfoT;
+#define AHL_SUCCESS 0
+#define AHL_FAIL 1
+
+#define AHL_ACCESS_CONTROL_GRANTED 1
+#define AHL_ACCESS_CONTROL_DENIED 0
+
+#define AHL_UNDEFINED -1
+#define AHL_STR_MAX_LENGTH 256
+
+
+typedef struct RoleInfo {
+    char *              pRoleName;          // Role string identifier
+    int                 iPriority;          // Role normalized priority (0-100)
+    InterruptBehaviorT  eInterruptBehavior; // Role behavior when interrupting lower priority streams
+    GPtrArray *         pActionList;        // List of supported actions for the role (gchar*)
+    GPtrArray *         pSourceEndpoints;   // Source endpoints info (EndpointInfoT*)
+    GPtrArray *         pSinkEndpoints;     // Sink endpoints info (EndpointInfoT*)
+} RoleInfoT;
 
 // Parts of the context that are visible to the policy (for state based decisions)
 typedef struct AHLPolicyCtx {
-    GPtrArray *     pSourceEndpoints; // Array of source end points for each audio role (GArray*)
-    GPtrArray *     pSinkEndpoints;   // Array of sink end points for each audio role (GArray*)
-    GArray *        pRolePriority;    // List of role priorities (int).  TODO: Should be hash table with role name as key
-    GArray *        pAudioRoles;      // List of audio roles (GString)
-    GArray *        pActiveStreams;   // List of active streams (StreamInfoT)
-    int             iNumberRoles;     // Number of audio roles from configuration   
-    // TODO: Global properties   -> exposed to policy
+    GHashTable *        pRoleInfo;         // Hash table of role information structure (RoleInfoT*) accessed by role name 
+    GHashTable *        pStreams;          // List of active streams (StreamInfoT*) accessed by streamID
+    GPtrArray *         pHALList;          // List of HAL dependencies
+    // TODO: Events need to be sent directly by HLB when separation with policy complete
+    struct afb_event    propertyEvent;     // AGL event used when property changes 
+    struct afb_event    volumeEvent;       // AGL event used when volume changes
+    struct afb_event    postActionEvent;   // AGL event used on post action call
 } AHLPolicyCtxT;
 
 // Global binding context
@@ -76,24 +69,26 @@ typedef struct AHLCtx {
     endpointID_t    nextSourceEndpointID;       // Counter to assign new ID
     endpointID_t    nextSinkEndpointID;         // Counter to assign new ID
     endpointID_t    nextStreamID;               // Counter to assign new ID
-    GArray *        pHALList;                   // List of HAL dependencies
-    GHashTable *    pDefaultStatesHT;           // List of states and default values known to configuration
 } AHLCtxT;
 
+// Client specific binding context
+typedef struct AHLClientCtx {
+     GArray *        pStreamAccessList;           // List of streams that client has control over
+} AHLClientCtxT;
+
+// ahl-binding.c
 PUBLIC int AhlBindingInit();
+PUBLIC void AhlOnEvent(const char *evtname, json_object *eventJ);
+
 // ahl-deviceenum.c
-PUBLIC int  EnumerateSources(json_object * in_jSourceArray, int in_iRoleIndex, char * in_pRoleName);
-PUBLIC int  EnumerateSinks(json_object * in_jSinkArray, int in_iRoleIndex, char * in_pRoleName);
+int  EnumerateDevices(json_object * in_jDeviceArray, char * in_pAudioRole, EndpointTypeT in_deviceType, GPtrArray * out_pEndpointArray);
+EndpointInfoT * InitEndpointInfo();
+void TermEndpointInfo( EndpointInfoT * out_pEndpointInfo );
 // ahl-config.c
-PUBLIC int  ParseHLBConfig();
+int  ParseHLBConfig();
 // ahl-policy.c
-PUBLIC int  Policy_OpenStream(char *pAudioRole, EndpointTypeT endpointType, endpointID_t endpointID);
-PUBLIC int  Policy_SetVolume(EndpointTypeT endpointType, endpointID_t endpointID, char *volumeStr, int rampTimeMS);
-PUBLIC int  Policy_SetProperty(EndpointTypeT endpointType, endpointID_t endpointID, char *propertyName, char *propValueStr, int rampTimeMS);
-PUBLIC int  Policy_SetState(EndpointTypeT endpointType, endpointID_t endpointID, char *pStateName, char *pStateValue);
-PUBLIC int  Policy_PostSoundEvent(char *eventName, char *audioRole, char *mediaName, void *audioContext);
-PUBLIC int  Policy_AudioDeviceChange();
-
-#define AUDIOHL_MAXHALCONTROLNAME_LENGTH 128
+#ifndef AHL_DISCONNECT_POLICY
+PUBLIC void audiohlapi_raise_event(json_object *EventDataJ);
+#endif
 
 #endif // AHL_BINDING_INCLUDE
diff --git a/src/ahl-config.c b/src/ahl-config.c
index 432910f..5e3de08 100644
--- a/src/ahl-config.c
+++ b/src/ahl-config.c
@@ -1,6 +1,5 @@
 /*
  * Copyright (C) 2017 "Audiokinetic Inc"
- * Author Francois Thibault <fthibault@audiokinetic.com>
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -23,19 +22,39 @@
 
 #include "ahl-binding.h"
 
-// TODO: Term() to free all allocs upon  exit...
-
 extern AHLCtxT g_AHLCtx;
 
-PUBLIC int ParseHLBConfig() {
+static InterruptBehaviorT InterruptBehaviorToEnum(char * in_pInterruptBehaviorStr)
+{
+    g_assert_nonnull(in_pInterruptBehaviorStr);
+    if (strcasecmp(in_pInterruptBehaviorStr,AHL_INTERRUPTBEHAVIOR_CONTINUE)==0) {
+        return INTERRUPTBEHAVIOR_CONTINUE;
+    }
+    else if (strcasecmp(in_pInterruptBehaviorStr,AHL_INTERRUPTBEHAVIOR_CANCEL)==0) {
+        return INTERRUPTBEHAVIOR_CANCEL;
+    }
+    else if (strcasecmp(in_pInterruptBehaviorStr,AHL_INTERRUPTBEHAVIOR_PAUSE)==0) {
+        return INTERRUPTBEHAVIOR_PAUSE;
+    }
+    else 
+        return INTERRUPTBEHAVIOR_MAXVALUE;
+}
+
+int ParseHLBConfig() {
     char * versionStr = NULL;
     json_object * jAudioRoles = NULL;
     json_object * jHALList = NULL;
-    json_object * jStateList = NULL;
+    char * policyModule = NULL;
     
     // TODO: This should be retrieve from binding startup arguments
     char configfile_path[256];
-    sprintf(configfile_path, "%s/opt/config/ahl-config.json", getenv("HOME")); 
+    if(getenv("AHL_CONFIG_FILE") == NULL)
+    {
+        AFB_ERROR("Please Set Environnement Variable AHL_CONFIG_FILE");  
+        return 1;  
+    }
+    
+    sprintf(configfile_path, "%s", getenv("AHL_CONFIG_FILE")); 
     AFB_INFO("High-level config file -> %s\n", configfile_path);
 
     // Open configuration file
@@ -46,67 +65,61 @@ PUBLIC int ParseHLBConfig() {
         return 1;
     }
 
-    int err = wrap_json_unpack(config_JFile, "{s:s,s:o,s:o,s:o}", "version", &versionStr,"audio_roles",&jAudioRoles,"hal_list",&jHALList,"state_list",&jStateList);
+    int err = wrap_json_unpack(config_JFile, "{s:s,s:s,s:o,s:o}", "version", &versionStr,"policy_module", &policyModule,"audio_roles",&jAudioRoles,"hal_list",&jHALList);
     if (err) {
         AFB_ERROR("Invalid configuration file -> %s", configfile_path);
         return 1;
     }
-
-    // Parse and populate list of known states
-    g_AHLCtx.pDefaultStatesHT = g_hash_table_new(g_str_hash, g_str_equal);
-    int iStateListLength = json_object_array_length(jStateList);
-    for ( int i = 0; i < iStateListLength; i++)
-    {
-        char * pStateName = NULL;
-        char * pStateVal = NULL;
-        json_object * jStateobject = json_object_array_get_idx(jStateList,i);
-        err = wrap_json_unpack(jStateobject, "{s:s,s:s}", "name", &pStateName,"default_val",&pStateVal);
-        if (err) {
-            AFB_ERROR("Invalid state object -> %s", json_object_get_string(jStateobject));
-            return 1;
-        }
-
-        g_hash_table_insert(g_AHLCtx.pDefaultStatesHT, pStateName, pStateVal);
-    }
+    AFB_INFO("High-level audio API version: %s", "1.0.0");
+    AFB_INFO("Config version: %s", versionStr);
+    AFB_INFO("Policy module: %s", policyModule);
 
     int iHALListLength = json_object_array_length(jHALList);
+    g_AHLCtx.policyCtx.pHALList = g_ptr_array_new_with_free_func(g_free);
     int iNumberOfRoles = json_object_array_length(jAudioRoles);
-    // Dynamically allocated based on number or roles found
-    g_AHLCtx.pHALList = g_array_sized_new(FALSE, TRUE, sizeof(GString), iHALListLength);
-    g_AHLCtx.policyCtx.pRolePriority = g_array_sized_new(FALSE, TRUE, sizeof(int), iNumberOfRoles);
-    g_AHLCtx.policyCtx.pAudioRoles = g_array_sized_new(FALSE, TRUE, sizeof(GString), iNumberOfRoles);
-    g_AHLCtx.policyCtx.pSourceEndpoints = g_ptr_array_sized_new(iNumberOfRoles);
-    g_AHLCtx.policyCtx.pSinkEndpoints = g_ptr_array_sized_new(iNumberOfRoles);
-    g_AHLCtx.policyCtx.iNumberRoles = iNumberOfRoles;
+    g_AHLCtx.policyCtx.pRoleInfo = g_hash_table_new(g_str_hash, g_str_equal);
         
-    for (unsigned int i = 0; i < iHALListLength; i++)
+    for (int i = 0; i < iHALListLength; i++)
     {
         char * pHAL = NULL;
         json_object * jHAL = json_object_array_get_idx(jHALList,i);
-        pHAL = (char *)json_object_get_string(jHAL);
-        GString * gHALName = g_string_new( pHAL );
-        g_array_append_val( g_AHLCtx.pHALList, *gHALName );
-
-        // Set dependency on HAL
-        err = afb_daemon_require_api_v2(pHAL,1) ;
-        if( err != 0 )
-        {
-            AFB_ERROR("Audio high level API could not set dependenvy on API: %s",pHAL);
-            return 1;
+        if (jHAL) {
+            pHAL = (char *)json_object_get_string(jHAL);
+            char * pHALName = g_strdup( pHAL );
+            g_ptr_array_add( g_AHLCtx.policyCtx.pHALList, pHALName );
+
+            // Set dependency on HAL specified
+            err = afb_daemon_require_api_v2(pHAL,1) ;
+            if( err != 0 )
+            {
+                AFB_ERROR("Audio high level API could not set dependency on API: %s",pHAL);
+                return 1;
+            }
         }
     }
 
-    for (unsigned int i = 0; i < iNumberOfRoles; i++)
+    for (int i = 0; i < iNumberOfRoles; i++)
     {
         int priority = 0;
         json_object * jAudioRole = json_object_array_get_idx(jAudioRoles,i);
         json_object * jOutputDevices = NULL;
         json_object * jInputDevices = NULL;
+        json_object * jActions = NULL;
         char * pRoleName = NULL;
+        char * pInteruptBehavior = NULL;
+
         int iNumOutDevices = 0;
         int iNumInDevices = 0;
-
-        err = wrap_json_unpack(jAudioRole, "{s:s,s:i,s?o,s?o}", "name", &pRoleName,"priority",&priority,"output",&jOutputDevices,"input",&jInputDevices);
+        int iNumActions = 0;
+
+        err = wrap_json_unpack(jAudioRole, "{s:s,s:i,s:s,s?o,s?o,s?o}", 
+                                    "name", &pRoleName,
+                                    "priority",&priority,
+                                    "interupt_behavior",&pInteruptBehavior,
+                                    "output",&jOutputDevices,
+                                    "input",&jInputDevices,
+                                    "actions",&jActions
+                                    );
         if (err) {
             AFB_ERROR("Invalid audio role configuration : %s", json_object_to_json_string(jAudioRole));
             return 1;
@@ -116,30 +129,47 @@ PUBLIC int ParseHLBConfig() {
             iNumOutDevices = json_object_array_length(jOutputDevices);
         if (jInputDevices)
             iNumInDevices = json_object_array_length(jInputDevices);
-
-        GString * gRoleName = g_string_new( pRoleName );
-        g_array_append_val( g_AHLCtx.policyCtx.pAudioRoles, *gRoleName );
-        g_array_append_val( g_AHLCtx.policyCtx.pRolePriority, priority );
+        if (jActions)
+            iNumActions = json_object_array_length(jActions);
+
+        RoleInfoT * pRoleInfo = (RoleInfoT*) malloc(sizeof(RoleInfoT));
+        memset(pRoleInfo,0,sizeof(RoleInfoT));
+        pRoleInfo->pRoleName = g_strdup( pRoleName );
+        pRoleInfo->iPriority = priority;
+        pRoleInfo->eInterruptBehavior = InterruptBehaviorToEnum(pInteruptBehavior);
+
+        // Actions
+        pRoleInfo->pActionList = g_ptr_array_new_with_free_func(g_free);
+        // Parse and validate list of available actions
+        for (int i = 0; i < iNumActions; i++)
+        {
+            json_object * jAction = json_object_array_get_idx(jActions,i);
+            char * pActionName = (char *)json_object_get_string(jAction);
+            if (pActionName)
+                g_ptr_array_add(pRoleInfo->pActionList, g_strdup(pActionName));
+        }
 
         // Sources
-        GArray * pRoleSourceDeviceArray = g_array_new(FALSE, TRUE, sizeof(EndpointInfoT));
-        g_ptr_array_add(g_AHLCtx.policyCtx.pSourceEndpoints,pRoleSourceDeviceArray);
+        pRoleInfo->pSourceEndpoints = g_ptr_array_new_with_free_func(g_free);
         if (iNumInDevices) {          
-            err = EnumerateSources(jInputDevices,i,pRoleName);
+            err = EnumerateDevices(jInputDevices,pRoleName,ENDPOINTTYPE_SOURCE,pRoleInfo->pSourceEndpoints);
             if (err) {
                 AFB_ERROR("Invalid input devices : %s", json_object_to_json_string(jInputDevices));
                 return 1;
             }
         }
-        GArray * pRoleSinkDeviceArray = g_array_new(FALSE, TRUE, sizeof(EndpointInfoT));
-        g_ptr_array_add(g_AHLCtx.policyCtx.pSinkEndpoints,pRoleSinkDeviceArray);
+        // Sinks
+        pRoleInfo->pSinkEndpoints = g_ptr_array_new_with_free_func(g_free);
         if (iNumOutDevices) { 
-            err = EnumerateSinks(jOutputDevices,i,pRoleName);
+            err = EnumerateDevices(jOutputDevices,pRoleName,ENDPOINTTYPE_SINK,pRoleInfo->pSinkEndpoints);
             if (err) {
                 AFB_ERROR("Invalid output devices : %s", json_object_to_json_string(jOutputDevices));
                 return 1;
             }
         }
+
+        g_hash_table_insert(g_AHLCtx.policyCtx.pRoleInfo, pRoleInfo->pRoleName, pRoleInfo);
+
     }
 
     // Build lists of all device URI referenced in config file (input/output)    
diff --git a/src/ahl-deviceenum.c b/src/ahl-deviceenum.c
index b866d52..7e67d7a 100644
--- a/src/ahl-deviceenum.c
+++ b/src/ahl-deviceenum.c
@@ -1,6 +1,5 @@
 /*
  * Copyright (C) 2017 "Audiokinetic Inc"
- * Author Francois Thibault <fthibault@audiokinetic.com>
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -24,9 +23,11 @@
 #include "wrap-json.h"
 
 #include "ahl-binding.h"
+#include "ahl-policy.h"
 
 extern AHLCtxT g_AHLCtx;
 
+// TODO: Hash from endpoint ID information instead
 static endpointID_t CreateNewSourceID()
 {
     endpointID_t newID = g_AHLCtx.nextSourceEndpointID;
@@ -34,6 +35,7 @@ static endpointID_t CreateNewSourceID()
     return newID;
 }
 
+// TODO: Hash from endpoint ID information instead
 static endpointID_t CreateNewSinkID()
 {
     endpointID_t newID = g_AHLCtx.nextSinkEndpointID;
@@ -62,31 +64,38 @@ static int SeparateDomainFromDeviceURI( char * in_pDeviceURI, char ** out_pDomai
 
 static int IsAlsaDomain(const char * in_pDomainStr)
 {
-    return (int) (strcasecmp(in_pDomainStr,AUDIOHL_DOMAIN_ALSA) == 0);
+    return (int) (strcasecmp(in_pDomainStr,AHL_DOMAIN_ALSA) == 0);
 }
 
 static int IsPulseDomain(const char * in_pDomainStr)
 {
-    return (int) (strcasecmp(in_pDomainStr,AUDIOHL_DOMAIN_PULSE) == 0);
+    return (int) (strcasecmp(in_pDomainStr,AHL_DOMAIN_PULSE) == 0);
 }
 
 static int IsGStreamerDomain(const char * in_pDomainStr)
 {
-    return (int) (strcasecmp(in_pDomainStr,AUDIOHL_DOMAIN_GSTREAMER) == 0);
+    return (int) (strcasecmp(in_pDomainStr,AHL_DOMAIN_GSTREAMER) == 0);
 }
 
 static int IsExternalDomain(const char * in_pDomainStr)
 {
-    return (int) (strcasecmp(in_pDomainStr,AUDIOHL_DOMAIN_EXTERNAL) == 0);
+    return (int) (strcasecmp(in_pDomainStr,AHL_DOMAIN_EXTERNAL) == 0);
 }
 
 static int FillALSAPCMInfo( snd_pcm_t * in_pPcmHandle, EndpointInfoT * out_pEndpointInfo )         
 {   
+    g_assert_nonnull(in_pPcmHandle);
+    g_assert_nonnull(out_pEndpointInfo);
     snd_pcm_type_t pcmType = 0;
     snd_pcm_info_t * pPcmInfo = NULL;
     int iAlsaRet = 0;
-    const char * pDeviceName = NULL;
+    const char * pCardName = NULL;
     int retVal = 0;
+    snd_ctl_t * ctlHandle = NULL;
+	snd_ctl_card_info_t * ctlInfo = NULL;
+
+	snd_pcm_info_alloca(&pPcmInfo);
+    snd_ctl_card_info_alloca(&ctlInfo);
 
     // retrieve PCM type
     pcmType = snd_pcm_type(in_pPcmHandle);
@@ -100,335 +109,223 @@ static int FillALSAPCMInfo( snd_pcm_t * in_pPcmHandle, EndpointInfoT * out_pEndp
         case SND_PCM_TYPE_SOFTVOL:
             out_pEndpointInfo->deviceURIType = DEVICEURITYPE_ALSA_SOFTVOL;
             break;
+        case SND_PCM_TYPE_PLUG:
+            out_pEndpointInfo->deviceURIType = DEVICEURITYPE_ALSA_PLUG;
+            break;
         default:
             out_pEndpointInfo->deviceURIType = DEVICEURITYPE_ALSA_OTHER;
             break;
     }
 
-    iAlsaRet = snd_pcm_info_malloc(&pPcmInfo);
-    if (iAlsaRet < 0)
-    {
-        AFB_WARNING("Error allocating PCM info structure");
-        retVal = 1;
-        goto End;
-    }
-
     iAlsaRet = snd_pcm_info(in_pPcmHandle,pPcmInfo);
     if (iAlsaRet < 0)
     {
         AFB_WARNING("Error retrieving PCM device info");
-        retVal = 1;
-        goto End;
-    }
-
-    // Populate target device name (for application display)
-    pDeviceName = snd_pcm_info_get_name(pPcmInfo);
-    if (pDeviceName == NULL)
-    {
-        AFB_WARNING("No Alsa device name available");
-        retVal = 1;
-        goto End;
-        // Could potentially assign a "default" name and carry on with this device
+        return 1;
     }
-    strncpy(out_pEndpointInfo->deviceName,pDeviceName,AUDIOHL_MAX_DEVICE_NAME_LENGTH); // Overwritten by HAL name if available
 
     // get card number
-    out_pEndpointInfo->cardNum = snd_pcm_info_get_card(pPcmInfo);
-    if ( out_pEndpointInfo->cardNum < 0 )
+    out_pEndpointInfo->alsaInfo.cardNum = snd_pcm_info_get_card(pPcmInfo);
+    if ( out_pEndpointInfo->alsaInfo.cardNum < 0 )
     {
         AFB_WARNING("No Alsa card number available");
-        retVal = 1;
-        goto End; 
+        return 1;
     }
     
     // get device number
-    out_pEndpointInfo->deviceNum = snd_pcm_info_get_device(pPcmInfo);
-    if ( out_pEndpointInfo->deviceNum < 0 )
+    out_pEndpointInfo->alsaInfo.deviceNum = snd_pcm_info_get_device(pPcmInfo);
+    if ( out_pEndpointInfo->alsaInfo.deviceNum < 0 )
     {
         AFB_WARNING("No Alsa device number available");
-        retVal = 1;
-        goto End;
+        return 1;
     }
 
     // get sub-device number
-    out_pEndpointInfo->subDeviceNum = snd_pcm_info_get_subdevice(pPcmInfo);
-    if ( out_pEndpointInfo->subDeviceNum < 0 )
+    out_pEndpointInfo->alsaInfo.subDeviceNum = snd_pcm_info_get_subdevice(pPcmInfo);
+    if ( out_pEndpointInfo->alsaInfo.subDeviceNum < 0 )
     {
         AFB_WARNING("No Alsa subdevice number available");
-        retVal = 1;
-        goto End; 
+        return 1;
     }
 
-End:
-    if(pPcmInfo) {
-        snd_pcm_info_free(pPcmInfo);
-        pPcmInfo = NULL;
+    char cardName[32];
+	sprintf(cardName, "hw:%d", out_pEndpointInfo->alsaInfo.cardNum);
+	iAlsaRet = snd_ctl_open(&ctlHandle, cardName, 0);
+    if ( iAlsaRet < 0 )
+    {
+        AFB_WARNING("Could not open ALSA card control");
+        return 1;
     }
 
-    return retVal;
-}
-
-static int RetrieveAssociatedHALAPIName(EndpointInfoT * io_pEndpointInfo)
-{
-    json_object *j_response, *j_query = NULL;
-    int err;
-    err = afb_service_call_sync("alsacore", "hallist", j_query, &j_response);
-    if (err) {
-        AFB_ERROR("Could not retrieve list of HAL from ALSA core");
+	iAlsaRet = snd_ctl_card_info(ctlHandle, ctlInfo);
+    if ( iAlsaRet < 0 )
+    {
+        AFB_WARNING("Could not retrieve ALSA card info");
+        snd_ctl_close(ctlHandle);
         return 1;
     }
-    AFB_DEBUG("ALSAcore hallist response=%s", json_object_to_json_string(j_response));
-
-    // Look through returned list for matching card
-    int found = 0;
-    json_object * jRespObj = NULL;
-    json_object_object_get_ex(j_response, "response", &jRespObj);
-    int iNumHAL = json_object_array_length(jRespObj);
-    for ( int i = 0 ; i < iNumHAL; i++)
-    {
-        json_object * jHAL = json_object_array_get_idx(jRespObj,i);
-        char * pDevIDStr = NULL;
-        char * pAPIName = NULL;
-        char * pShortName = NULL;
-        
-        int err = wrap_json_unpack(jHAL, "{s:s,s:s,s:s}", "devid", &pDevIDStr,"api", &pAPIName,"shortname",&pShortName);
-        if (err) {
-            AFB_ERROR("Could not retrieve devid string=%s", json_object_get_string(jHAL));
-            return 1;
-        }
 
-        // Retrieve card number (e.g. hw:0)
-        int iCardNum = atoi(pDevIDStr+3);
-        if (iCardNum == io_pEndpointInfo->cardNum) {
-            strncpy(io_pEndpointInfo->halAPIName,pAPIName,AUDIOHL_MAX_AUDIOROLE_LENGTH);
-            strncpy(io_pEndpointInfo->deviceName,pShortName,AUDIOHL_MAX_DEVICE_NAME_LENGTH);
-            found = 1;
-            break;
-        }
+    // Populate unique target card name 
+    pCardName = snd_ctl_card_info_get_id(ctlInfo);
+    if (pCardName == NULL)
+    {
+        AFB_WARNING("No Alsa card name available");
+        snd_ctl_close(ctlHandle);
+        return 1;
     }
-    return !found;
+    out_pEndpointInfo->gsDeviceName = g_strdup(pCardName); 
+
+    snd_ctl_close(ctlHandle);
+
+    return retVal;
 }
 
-static int InitializeEndpointStates( EndpointInfoT * out_pEndpointInfo )
+EndpointInfoT * InitEndpointInfo()
 {
-    //out_pEndpointInfo = g_array_sized_new(FALSE,TRUE,sizeof)
-    // for list of known states
-    return 0;
+    EndpointInfoT * pEndpointInfo = (EndpointInfoT*) malloc(sizeof(EndpointInfoT));
+    memset(pEndpointInfo,0,sizeof(EndpointInfoT));
+    pEndpointInfo->endpointID = AHL_UNDEFINED;
+    pEndpointInfo->type = ENDPOINTTYPE_MAXVALUE;
+    pEndpointInfo->deviceURIType = DEVICEURITYPE_MAXVALUE;
+    pEndpointInfo->alsaInfo.cardNum = AHL_UNDEFINED;
+    pEndpointInfo->alsaInfo.deviceNum = AHL_UNDEFINED;
+    pEndpointInfo->alsaInfo.subDeviceNum = AHL_UNDEFINED;
+    pEndpointInfo->format.sampleRate = AHL_UNDEFINED;
+    pEndpointInfo->format.numChannels = AHL_UNDEFINED;
+    pEndpointInfo->format.sampleType = AHL_FORMAT_UNKNOWN;
+    pEndpointInfo->pPropTable = g_hash_table_new(g_str_hash, g_str_equal);
+    return pEndpointInfo;
 }
 
-// For a given audio role
-PUBLIC int EnumerateSources(json_object * in_jSourceArray, int in_iRoleIndex, char * in_pRoleName) {
-
-    int iNumberDevices = json_object_array_length(in_jSourceArray);
-
-    // Parse and validate list of available devices
-    for (unsigned int i = 0; i < iNumberDevices; i++)
-    {
-        char fullDeviceURI[AUDIOHL_MAX_DEVICE_URI_LENGTH]; // strtok is destructive
-        char * pDeviceURIDomain = NULL;
-        char * pFullDeviceURI = NULL;
-        char * pDeviceURIPCM = NULL;
-        int err = 0;
-        EndpointInfoT endpointInfo;
-
-        json_object * jSource = json_object_array_get_idx(in_jSourceArray,i);
-
-        // strip domain name from URI
-        pFullDeviceURI = (char *)json_object_get_string(jSource);
-        strncpy(fullDeviceURI,pFullDeviceURI,AUDIOHL_MAX_DEVICE_URI_LENGTH);
-        err = SeparateDomainFromDeviceURI(fullDeviceURI,&pDeviceURIDomain,&pDeviceURIPCM);
-        if (err)
-        {
-            AFB_WARNING("Invalid device URI string -> %s",fullDeviceURI);
-            continue;
-        }
-        
-        // non ALSA URI are simply passed to application (no validation) at this time 
-        // In Non ALSA case devices in config are assumed to be available, if not application can fallback on explicit device selection 
-        endpointInfo.cardNum = -1;
-        endpointInfo.deviceNum = -1;
-        endpointInfo.cardNum = -1;
-        strncpy(endpointInfo.deviceName,pDeviceURIPCM,AUDIOHL_MAX_DEVICE_NAME_LENGTH); // Overwritten by HAL name if available
-
-        if (IsAlsaDomain(pDeviceURIDomain))
+void TermEndpointInfo( EndpointInfoT * out_pEndpointInfo )
+{
+    #define SAFE_FREE(__ptr__) if(__ptr__) g_free(__ptr__); __ptr__ = NULL;
+    SAFE_FREE(out_pEndpointInfo->gsDeviceName);
+    SAFE_FREE(out_pEndpointInfo->gsDisplayName);
+    SAFE_FREE(out_pEndpointInfo->gsDeviceDomain);
+    SAFE_FREE(out_pEndpointInfo->pRoleName);
+    SAFE_FREE(out_pEndpointInfo->gsDeviceURI);
+    SAFE_FREE(out_pEndpointInfo->gsHALAPIName);
+
+    if (out_pEndpointInfo->pPropTable) {
+        // Free json_object for all property values
+        GHashTableIter iter;
+        gpointer key, value;
+        g_hash_table_iter_init (&iter, out_pEndpointInfo->pPropTable);
+        while (g_hash_table_iter_next (&iter, &key, &value))
         {
-            // TODO: Missing support for loose name matching
-            // This will require using ALSA hints to get PCM names
-            // And would iterate over all available devices matching string (possibly all if no filtering is desired for a certain role)
-            
-            snd_pcm_t * pPcmHandle = NULL;    
-
-            // Get PCM handle
-	        err = snd_pcm_open(&pPcmHandle, pDeviceURIPCM, SND_PCM_STREAM_CAPTURE, 0);
-            if (err < 0)
-            {
-                AFB_NOTICE("Alsa PCM device was not found -> %s", pDeviceURIPCM);
-                continue;
-            }
-
-            err = FillALSAPCMInfo(pPcmHandle,&endpointInfo);
-            if (err) {
-                AFB_WARNING("Unable to retrieve PCM information for PCM -> %s",pDeviceURIPCM);
-                snd_pcm_close(pPcmHandle);
-                continue;
-            }
-
-            snd_pcm_close(pPcmHandle);
-
-            // Retrieve HAL API name
-            err = RetrieveAssociatedHALAPIName(&endpointInfo);
-            if (err) {
-                AFB_WARNING("SetVolume will fail without HAL association ->%s",endpointInfo.deviceURI);
-                // Choose not to skip anyhow...
-            }
+            if (value)
+                json_object_put(value);
         }
-        else if (IsPulseDomain(pDeviceURIDomain)) {
-            // Pulse domain
-            // For now display name is device URI directly, could extrapolated using more heuristics or even usins Pulse API later on
-            endpointInfo.deviceURIType = DEVICEURITYPE_PULSE;
-         }
-        else if (IsGStreamerDomain(pDeviceURIDomain)){
-            // GStreamer domain
-            // For now display name is device URI directly, could extrapolated using more heuristics or even usins GStreamer API later on
-            endpointInfo.deviceURIType = DEVICEURITYPE_GSTREAMER;
-        }
-        else if (IsExternalDomain(pDeviceURIDomain)){
-            // External domain   
-            endpointInfo.deviceURIType = DEVICEURITYPE_EXTERNAL;
-        }
-        else {
-            // Unknown domain
-            AFB_WARNING("Unknown domain in device URI string -> %s",fullDeviceURI);
-            continue;
-        }
-
-        err = InitializeEndpointStates( &endpointInfo );
-        if (err) {
-            AFB_ERROR("Cannot initialize endpoint states for URI -> %s",fullDeviceURI);
-            continue;
-        }
-
-        strncpy(endpointInfo.deviceURI,pDeviceURIPCM,AUDIOHL_MAX_DEVICE_URI_LENGTH);
-        strncpy(endpointInfo.audioRole,in_pRoleName,AUDIOHL_MAX_AUDIOROLE_LENGTH);
-        endpointInfo.endpointID = CreateNewSourceID();
-        endpointInfo.type = ENDPOINTTYPE_SOURCE;
-
-        // add to structure to list of available source devices
-        GArray * pRoleSourceDeviceArray = g_ptr_array_index( g_AHLCtx.policyCtx.pSourceEndpoints, in_iRoleIndex );
-        g_array_append_val(pRoleSourceDeviceArray, endpointInfo);
-
-    } // for all devices
-
-    AFB_DEBUG ("Audio high-level - Enumerate sources done");
-    return 0;
+        g_hash_table_remove_all(out_pEndpointInfo->pPropTable);
+        g_hash_table_destroy(out_pEndpointInfo->pPropTable);
+        out_pEndpointInfo->pPropTable = NULL;
+    }
+    // GLib automatically frees item when removed from the array
 }
 
 // For a given audio role
-PUBLIC int EnumerateSinks(json_object * in_jSinkArray, int in_iRoleIndex, char * in_pRoleName) {
+int EnumerateDevices(json_object * in_jDeviceArray, char * in_pAudioRole, EndpointTypeT in_deviceType, GPtrArray * out_pEndpointArray) {
 
-    int iNumberDevices = json_object_array_length(in_jSinkArray);
+    g_assert_nonnull(in_jDeviceArray);
+    int iNumberDevices = json_object_array_length(in_jDeviceArray);
 
     // Parse and validate list of available devices
-    for (unsigned int i = 0; i < iNumberDevices; i++)
+    for (int i = 0; i < iNumberDevices; i++)
     {
-        char fullDeviceURI[AUDIOHL_MAX_DEVICE_URI_LENGTH]; // strtok is destructive
         char * pDeviceURIDomain = NULL;
         char * pFullDeviceURI = NULL;
         char * pDeviceURIPCM = NULL;
         int err = 0;
-        EndpointInfoT endpointInfo;
-
-        json_object * jSink = json_object_array_get_idx(in_jSinkArray,i);
 
+        json_object * jDevice = json_object_array_get_idx(in_jDeviceArray,i);
+        if (jDevice == NULL) {
+            AFB_WARNING("Invalid device array -> %s",json_object_to_json_string(in_jDeviceArray));
+            continue;
+        }
         // strip domain name from URI
-        pFullDeviceURI = (char*)json_object_get_string(jSink);
-        strncpy(fullDeviceURI,pFullDeviceURI,AUDIOHL_MAX_DEVICE_URI_LENGTH);
-        err = SeparateDomainFromDeviceURI(fullDeviceURI,&pDeviceURIDomain,&pDeviceURIPCM);
+        pFullDeviceURI = (char *)json_object_get_string(jDevice);
+        char * pFullDeviceURICopy = g_strdup(pFullDeviceURI); // strtok is destructive
+        err = SeparateDomainFromDeviceURI(pFullDeviceURICopy,&pDeviceURIDomain,&pDeviceURIPCM);
         if (err)
         {
-            AFB_WARNING("Invalid device URI string -> %s",fullDeviceURI);
+            AFB_WARNING("Invalid device URI string -> %s",pFullDeviceURICopy);
             continue;
         }
+
+        EndpointInfoT * pEndpointInfo = InitEndpointInfo();
+        g_assert_nonnull(pEndpointInfo);
         
         // non ALSA URI are simply passed to application (no validation) at this time 
         // In Non ALSA case devices in config are assumed to be available, if not application can fallback on explicit device selection 
+        pEndpointInfo->gsDeviceName = g_strdup(pDeviceURIPCM); 
+        pEndpointInfo->gsDeviceDomain = g_strdup(pDeviceURIDomain);
+        pEndpointInfo->gsDeviceURI = g_strdup(pDeviceURIPCM);
+        pEndpointInfo->pRoleName = g_strdup(in_pAudioRole);
+        
+        g_free(pFullDeviceURICopy);
+        pFullDeviceURICopy = NULL;
+        pDeviceURIDomain = NULL; //Derived from above mem
+        pDeviceURIPCM = NULL; //Derived from above mem
 
-        endpointInfo.cardNum = -1;
-        endpointInfo.deviceNum = -1;
-        endpointInfo.cardNum = -1;
-        strncpy(endpointInfo.deviceName,pDeviceURIPCM,AUDIOHL_MAX_DEVICE_NAME_LENGTH);
-
-        if (IsAlsaDomain(pDeviceURIDomain))
+        if (IsAlsaDomain(pEndpointInfo->gsDeviceDomain))
         {
             // TODO: Missing support for loose name matching
             // This will require using ALSA hints to get PCM names
             // And would iterate over all available devices matching string (possibly all if no filtering is desired for a certain role)
-
-            snd_pcm_t * pPcmHandle = NULL;
-
-            // get PCM handle
-	        err = snd_pcm_open(&pPcmHandle, pDeviceURIPCM, SND_PCM_STREAM_PLAYBACK, 0);
+            
+            // Get PCM handle
+            snd_pcm_t * pPcmHandle = NULL;  
+            snd_pcm_stream_t streamType = in_deviceType == ENDPOINTTYPE_SOURCE ? SND_PCM_STREAM_CAPTURE : SND_PCM_STREAM_PLAYBACK;
+	        err = snd_pcm_open(&pPcmHandle, pEndpointInfo->gsDeviceURI, streamType, 0);
             if (err < 0)
             {
-                AFB_NOTICE("Alsa PCM device was not found -> %s", pDeviceURIPCM);
+                AFB_NOTICE("Alsa PCM device was not found -> %s", pEndpointInfo->gsDeviceURI);
                 continue;
             }
 
-            err = FillALSAPCMInfo(pPcmHandle,&endpointInfo);
+            err = FillALSAPCMInfo(pPcmHandle,pEndpointInfo);
             if (err) {
-                AFB_WARNING("Unable to retrieve PCM information for PCM -> %s",pDeviceURIPCM);
+                AFB_WARNING("Unable to retrieve PCM information for PCM -> %s",pEndpointInfo->gsDeviceURI);
                 snd_pcm_close(pPcmHandle);
                 continue;
             }
 
             snd_pcm_close(pPcmHandle);
-
-            // Retrieve HAL API name
-            err = RetrieveAssociatedHALAPIName(&endpointInfo);
-            if (err) {
-                //AFB_WARNING("SetVolume w fail without HAL association ->%s",endpointInfo.deviceURI);
-                continue; 
-            }
         }
-        else if (IsPulseDomain(pDeviceURIDomain)) {
+        else if (IsPulseDomain(pEndpointInfo->gsDeviceDomain)) {
             // Pulse domain
             // For now display name is device URI directly, could extrapolated using more heuristics or even usins Pulse API later on
-            endpointInfo.deviceURIType = DEVICEURITYPE_PULSE;
-
+            pEndpointInfo->deviceURIType = DEVICEURITYPE_NOT_ALSA;
          }
-        else if (IsGStreamerDomain(pDeviceURIDomain)){
+        else if (IsGStreamerDomain(pEndpointInfo->gsDeviceDomain)){
             // GStreamer domain
             // For now display name is device URI directly, could extrapolated using more heuristics or even usins GStreamer API later on
-            endpointInfo.deviceURIType = DEVICEURITYPE_GSTREAMER;
+            pEndpointInfo->deviceURIType = DEVICEURITYPE_NOT_ALSA;
         }
-        else if (IsExternalDomain(pDeviceURIDomain)){
-            // External domain
-            
-            endpointInfo.deviceURIType = DEVICEURITYPE_EXTERNAL;
+        else if (IsExternalDomain(pEndpointInfo->gsDeviceDomain)){
+            // External domain   
+            pEndpointInfo->deviceURIType = DEVICEURITYPE_NOT_ALSA;
         }
         else {
             // Unknown domain
-            AFB_WARNING("Unknown domain in device URI string -> %s",fullDeviceURI);
+            AFB_WARNING("Unknown domain in device URI string -> %s",pFullDeviceURI);
             continue;
         }
 
-        err = InitializeEndpointStates( &endpointInfo );
-        if (err) {
-            AFB_ERROR("Cannot initialize endpoint states for URI -> %s",fullDeviceURI);
-            continue;
-        }
-
-        strncpy(endpointInfo.deviceURI,pDeviceURIPCM,AUDIOHL_MAX_DEVICE_URI_LENGTH);
-        strncpy(endpointInfo.audioRole,in_pRoleName,AUDIOHL_MAX_AUDIOROLE_LENGTH);
-        endpointInfo.endpointID = CreateNewSinkID();
-        endpointInfo.type = ENDPOINTTYPE_SINK;
+        pEndpointInfo->endpointID = in_deviceType == ENDPOINTTYPE_SOURCE ? CreateNewSourceID() : CreateNewSinkID();
+        pEndpointInfo->type = in_deviceType;
+        // Assigned by policy initialization
+        pEndpointInfo->gsDisplayName = malloc(AHL_STR_MAX_LENGTH*sizeof(char));
+        memset(pEndpointInfo->gsDisplayName,0,AHL_STR_MAX_LENGTH*sizeof(char));
+        pEndpointInfo->gsHALAPIName = malloc(AHL_STR_MAX_LENGTH*sizeof(char));
+        memset(pEndpointInfo->gsDisplayName,0,AHL_STR_MAX_LENGTH*sizeof(char));
 
-        // add to structure to list of available source devices
-        GArray * pRoleSinkDeviceArray = g_ptr_array_index( g_AHLCtx.policyCtx.pSinkEndpoints, in_iRoleIndex );
-        g_array_append_val(pRoleSinkDeviceArray, endpointInfo);
+        // add to structure to list of available devices
+        g_ptr_array_add(out_pEndpointArray, pEndpointInfo);
 
     } // for all devices
 
-    AFB_DEBUG ("Audio high-level - Enumerate sinks done");
+    AFB_DEBUG ("Audio high-level - Enumerate devices done");
     return 0;
-}
+}
\ No newline at end of file
diff --git a/src/ahl-interface.h b/src/ahl-interface.h
index 781bb05..0488e96 100644
--- a/src/ahl-interface.h
+++ b/src/ahl-interface.h
@@ -1,6 +1,5 @@
 /*
  * Copyright (C) 2017 "Audiokinetic Inc"
- * Author Francois Thibault <fthibault@audiokinetic.com>
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -18,57 +17,83 @@
 #ifndef AHL_INTERFACE_INCLUDE
 #define AHL_INTERFACE_INCLUDE
 
-#define UNDEFINED_ID -1
-
-typedef int endpointID_t;
-typedef int streamID_t;
-
-typedef enum EndpointType {
-    ENDPOINTTYPE_SOURCE = 0,        // source devices
-    ENDPOINTTYPE_SINK,              // sink devices
-    ENDPOINTTYPE_MAXVALUE           // Enum count, keep at the end
-} EndpointTypeT;
-
-// Standardized name for common audio roles (not enforced in any way, just helps system being more compatible)
-#define AUDIOROLE_WARNING "warning"             // Safety-relevant or critical alerts/alarms
-#define AUDIOROLE_GUIDANCE "guidance"           // Important user information where user action is expected (e.g. navigation instruction)
-#define AUDIOROLE_NOTIFICATION "notification"   // HMI or else notifications (e.g. touchscreen events, speech recognition on/off,...)
-#define AUDIOROLE_COMMUNICATION "communications" // Voice communications (e.g. handsfree, speech recognition)
-#define AUDIOROLE_ENTERTAINMENT "entertainment"  // Multimedia content (e.g. tuner, media player, etc.)
-#define AUDIOROLE_SYSTEM "system"               // System level content or development
-#define AUDIOROLE_STARTUP "startup"             // Early (startup) sound
-#define AUDIOROLE_SHUTDOWN "shutdown"           // Late (shutdown) sound
-#define AUDIOROLE_NONE "none"                   // Non-assigned / legacy applications
-
-typedef enum DeviceURIType {
-    DEVICEURITYPE_ALSA_HW = 0,  // Alsa hardware device URI
-    DEVICEURITYPE_ALSA_DMIX,    // Alsa Dmix device URI (only for playback devices)
-    DEVICEURITYPE_ALSA_DSNOOP,  // Alsa DSnoop device URI (only for capture devices)
-    DEVICEURITYPE_ALSA_SOFTVOL, // Alsa softvol device URI
-    DEVICEURITYPE_ALSA_OTHER,   // Alsa domain URI device of unspecified type
-    DEVICEURITYPE_PULSE,        // Pulse device URI
-    DEVICEURITYPE_GSTREAMER,    // GStreamer device URI
-    DEVICEURITYPE_EXTERNAL,     // Device URI for external ECU device
-    DEVICEURITYPE_MAXVALUE      // Enum count, keep at the end
-} DeviceURITypeT;
-
-// Standardized list of properties (string used for extensibility)
-#define AUDIOHL_PROPERTY_BALANCE "balance"
-#define AUDIOHL_PROPERTY_FADE "fade"
-#define AUDIOHL_PROPERTY_EQ_LOW "eq_low" 
-#define AUDIOHL_PROPERTY_EQ_MID "eq_mid" 
-#define AUDIOHL_PROPERTY_EQ_HIGH "eq_high"
-
-// Standardized list of state names/values (string used for extensibility)
-#define AUDIOHL_STATE_NAME_ACTIVE "active"
-#define AUDIOHL_STATE_NAME_MUTE "mute" 
-#define AUDIOHL_STATE_VALUE_ON "on"
-#define AUDIOHL_STATE_VALUE_OFF "off" 
-
-// Known audio domain string definitions (for configuration file format)
-#define AUDIOHL_DOMAIN_ALSA "Alsa"
-#define AUDIOHL_DOMAIN_PULSE "Pulse"
-#define AUDIOHL_DOMAIN_GSTREAMER "GStreamer"
-#define AUDIOHL_DOMAIN_EXTERNAL "External"
+///// API /////
+
+// Endpoint types
+#define AHL_ENDPOINTTYPE_SOURCE "source" // source devices
+#define AHL_ENDPOINTTYPE_SINK "sink" // sink devices
+
+// Stream state
+#define AHL_STREAM_STATE_IDLE  "idle"       // Stream is inactive
+#define AHL_STREAM_STATE_RUNNING "running"  // Stream is active and running    
+#define AHL_STREAM_STATE_PAUSED "paused"    // Stream is active but paused
+
+// Stream mute state
+#define AHL_STREAM_UNMUTED "off"            // Stream is not muted
+#define AHL_STREAM_MUTED "on"               // Stream is muted
+
+// Property/Volume/Action events
+#define AHL_ENDPOINT_PROPERTY_EVENT "ahl_endpoint_property_event"
+#define AHL_ENDPOINT_VOLUME_EVENT "ahl_endpoint_volume_event"
+#define AHL_ENDPOINT_INIT_EVENT "ahl_endpoint_init_event"
+#define AHL_POST_ACTION_EVENT "ahl_post_action"
+#define AHL_STREAM_STATE_EVENT "ahl_stream_state_event"
+#define AHL_ENDPOINT_INIT_EVENT "ahl_endpoint_init_event"
+
+
+// Stream state event types
+#define AHL_STREAM_EVENT_START "start"    // Stream is inactive
+#define AHL_STREAM_EVENT_STOP "stop"      // Stream is running    
+#define AHL_STREAM_EVENT_PAUSE "pause"    // Audio stream paused
+#define AHL_STREAM_EVENT_RESUME "resume"  // Audio stream resumed
+#define AHL_STREAM_EVENT_MUTE "mute"      // Audio stream muted
+#define AHL_STREAM_EVENT_UNMUTE "unmute"  // Audio stream unmuted
+
+///// Interpret returned or configuration information /////
+
+// Known audio domain string definitions (for configuration file format and device URI interpretation)
+#define AHL_DOMAIN_ALSA "alsa"
+#define AHL_DOMAIN_PULSE "pulse"
+#define AHL_DOMAIN_GSTREAMER "gstreamer"
+#define AHL_DOMAIN_EXTERNAL "external"
+
+// ALSA Device URI type
+#define AHL_DEVICEURITYPE_ALSA_HW "hw"             // Alsa hardware device URI
+#define AHL_DEVICEURITYPE_ALSA_DMIX "dmix"         // Alsa Dmix device URI (only for playback devices)
+#define AHL_DEVICEURITYPE_ALSA_DSNOOP "dsnoop"     // Alsa DSnoop device URI (only for capture devices)
+#define AHL_DEVICEURITYPE_ALSA_SOFTVOL "softvol"   // Alsa softvol device URI
+#define AHL_DEVICEURITYPE_ALSA_PLUG "plug"         // Alsa plug device URI
+#define AHL_DEVICEURITYPE_ALSA_OTHER "other"       // Alsa domain URI device of unspecified type
+#define AHL_DEVICEURITYPE_NOT_ALSA "nonalsa"
+
+// Define default behavior of audio role when interrupting lower priority sources (in configuration)
+#define AHL_INTERRUPTBEHAVIOR_CONTINUE "continue" // Continue to play when interrupted (e.g. media may be ducked)
+#define AHL_INTERRUPTBEHAVIOR_CANCEL "cancel"     // Abort playback when interrupted (e.g. non-important HMI feedback that does not make sense later)
+#define AHL_INTERRUPTBEHAVIOR_PAUSE "pause"       // Pause source when interrupted, to be resumed afterwards (e.g. non-temporal guidance)
+
+///// Naming convention /////
+
+// Standardized name for common audio roles (not enforced in any way, just helps compatibility)
+#define AHL_ROLE_WARNING "warning"             // Safety-relevant or critical alerts/alarms
+#define AHL_ROLE_GUIDANCE "guidance"           // Important user information where user action is expected (e.g. navigation instruction)
+#define AHL_ROLE_NOTIFICATION "notification"   // HMI or else notifications (e.g. touchscreen events, speech recognition on/off,...)
+#define AHL_ROLE_COMMUNICATION "communication" // Voice communications (e.g. handsfree, speech recognition)
+#define AHL_ROLE_ENTERTAINMENT "entertainment"  // Multimedia content (e.g. tuner, media player, etc.)
+#define AHL_ROLE_SYSTEM "system"               // System level content or development
+#define AHL_ROLE_STARTUP "startup"             // Early (startup) sound
+#define AHL_ROLE_SHUTDOWN "shutdown"           // Late (shutdown) sound
+#define AHL_ROLE_NONE "none"                   // Non-assigned / legacy applications
+
+// Standardized list of properties (not enforced in any way, just helps compatibility)
+#define AHL_PROPERTY_BALANCE "balance"
+#define AHL_PROPERTY_FADE "fade"
+#define AHL_PROPERTY_EQ_LOW "eq_bass" 
+#define AHL_PROPERTY_EQ_MID "eq_mid" 
+#define AHL_PROPERTY_EQ_HIGH "eq_treble"
+
+// Standardized list of events (not enforced in any way, just helps compatibility)
+#define AHL_EVENTS_PLAYSOUND "play_sound"
+#define AHL_EVENTS_ECHOCANCEL_ENABLE "echocancel_enable"
+#define AHL_EVENTS_ECHOCANCEL_DISABLE "echocancel_disable"
 
 #endif // AHL_INTERFACE_INCLUDE
diff --git a/src/ahl-policy-utils.c b/src/ahl-policy-utils.c
new file mode 100644
index 0000000..60ddd36
--- /dev/null
+++ b/src/ahl-policy-utils.c
@@ -0,0 +1,248 @@
+/*
+ * Copyright (C) 2017 "Audiokinetic Inc"
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "ahl-policy-utils.h"
+#include "wrap-json.h"
+#include <json-c/json.h>
+#include <glib.h>
+
+void Add_Endpoint_Property_Double( EndpointInfoT * io_pEndpointInfo, char * in_pPropertyName, double in_dPropertyValue)
+{
+    json_object * propValueJ = json_object_new_double(in_dPropertyValue);
+    g_hash_table_insert(io_pEndpointInfo->pPropTable, in_pPropertyName, propValueJ);
+}
+
+
+void Add_Endpoint_Property_Int( EndpointInfoT * io_pEndpointInfo, char * in_pPropertyName, int in_iPropertyValue)
+{
+    json_object * propValueJ = json_object_new_int(in_iPropertyValue);
+    g_hash_table_insert(io_pEndpointInfo->pPropTable, in_pPropertyName, propValueJ);
+}
+
+void Add_Endpoint_Property_String( EndpointInfoT * io_pEndpointInfo, char * in_pPropertyName, const char * in_pPropertyValue)
+{
+    json_object * propValueJ = json_object_new_string(in_pPropertyValue);
+    g_hash_table_insert(io_pEndpointInfo->pPropTable, in_pPropertyName, propValueJ);
+}
+
+int PolicyEndpointStructToJSON(EndpointInfoT * pEndpointInfo, json_object **ppPolicyEndpointJ)
+{
+    if(pEndpointInfo == NULL || pEndpointInfo->pPropTable == NULL)
+    {
+        AFB_ERROR("Invalid PolicyEndpointStructToJSON arguments");
+        return AHL_POLICY_UTIL_FAIL;
+    } 
+
+    //Create json object for PropTable
+    json_object *pPropTableJ = json_object_new_array();
+    if(pEndpointInfo->pPropTable) {      
+        GHashTableIter iter;
+        gpointer key, value;
+        g_hash_table_iter_init (&iter, pEndpointInfo->pPropTable);
+        while (g_hash_table_iter_next (&iter, &key, &value))
+        {
+            json_object *pPropertyJ = NULL;
+            int error=wrap_json_pack(&pPropertyJ, "{s:s,s:o}",
+                        "property_name", (char*)key, 
+                        "property_value", value                  
+                        );
+            if(error)                    
+            {
+                AFB_ERROR("Unable to pack JSON endpoint, =%s", wrap_json_get_error_string(error));   
+                return AHL_POLICY_UTIL_FAIL;             
+            }        
+            json_object_array_add(pPropTableJ, pPropertyJ);
+        }
+        AFB_DEBUG("json object query=%s", json_object_get_string(pPropTableJ));
+    }
+
+    //Create json object for Endpoint
+    int err= wrap_json_pack(ppPolicyEndpointJ, "{s:i,s:i,s:s,s:s,s:s,s:s,s:s,s:i,s:s,s:i,s:i,s:i,s:i,s:i,s:i,s:i,s:o}",
+                    "endpoint_id", pEndpointInfo->endpointID, 
+                    "endpoint_type", pEndpointInfo->type,
+                    "device_name", pEndpointInfo->gsDeviceName, 
+                    "display_name", pEndpointInfo->gsDisplayName, 
+                    "device_uri",  pEndpointInfo->gsDeviceURI,
+                    "device_domain", pEndpointInfo->gsDeviceDomain,
+                    "audio_role",pEndpointInfo->pRoleName,
+                    "device_uri_type", pEndpointInfo->deviceURIType,
+                    "hal_api_name", pEndpointInfo->gsHALAPIName,
+                    "alsa_cardNum", pEndpointInfo->alsaInfo.cardNum, 
+                    "alsa_deviceNum", pEndpointInfo->alsaInfo.deviceNum, 
+                    "alsa_subDeviceNum", pEndpointInfo->alsaInfo.subDeviceNum,
+                    "format_samplerate", pEndpointInfo->format.sampleRate,
+                    "format_numchannels", pEndpointInfo->format.numChannels,
+                    "format_sampletype",pEndpointInfo->format.sampleType,
+                    "volume", pEndpointInfo->iVolume,
+                    "property_table", pPropTableJ
+                    );
+    if (err) {
+        AFB_ERROR("Unable to pack JSON endpoint, =%s", wrap_json_get_error_string(err));
+        return AHL_POLICY_UTIL_FAIL;
+    }    
+    AFB_DEBUG("JSON endpoint information=%s", json_object_get_string(*ppPolicyEndpointJ));
+    return AHL_POLICY_UTIL_SUCCESS;
+}
+
+int PolicyStreamStructToJSON(StreamInfoT * pPolicyStream, json_object **ppPolicyStreamJ)
+{
+    if(pPolicyStream == NULL)
+    {
+        AFB_ERROR("Invalid arguments to PolicyStreamStructToJSON");
+        return AHL_POLICY_UTIL_FAIL;
+    }
+
+    json_object * pEndpointJ = NULL;
+    int iRet = PolicyEndpointStructToJSON(pPolicyStream->pEndpointInfo, &pEndpointJ);
+    if (iRet) {
+        return iRet;
+    }
+
+    //Create json object for stream
+    int err = wrap_json_pack(ppPolicyStreamJ, "{s:i,s:i,s:i,s:I,s:i,s:s,s:i,s:i,s:o}",
+                    "stream_id", pPolicyStream->streamID, 
+                    "stream_state", pPolicyStream->streamState,
+                    "stream_mute", pPolicyStream->streamMute, 
+                    "stream_state_event", &pPolicyStream->streamStateEvent, 
+                    "endpoint_sel_mod",  pPolicyStream->endpointSelMode,
+                    "role_name", pPolicyStream->pRoleName,
+                    "priority", pPolicyStream->iPriority,
+                    "interrupt_behavior", pPolicyStream->eInterruptBehavior,
+                    "endpoint_info", pEndpointJ
+                    );
+    if (err) {
+        AFB_ERROR("Unable to pack JSON endpoint, =%s", wrap_json_get_error_string(err));
+        return AHL_POLICY_UTIL_FAIL;
+    }
+
+    AFB_DEBUG("JSON stream information=%s", json_object_get_string(*ppPolicyStreamJ));
+
+    return AHL_POLICY_UTIL_SUCCESS;
+}
+
+int PolicyCtxJSONToEndpoint(json_object *pEndpointJ, EndpointInfoT * pEndpointInfo)
+{
+    if(pEndpointJ == NULL || pEndpointInfo == NULL /*|| pEndpointInfo->pPropTable == NULL */ )
+    {
+        AFB_ERROR("Invalid arguments for PolicyCtxJSONToEndpoint");
+        return AHL_POLICY_UTIL_FAIL;
+    }
+
+    //Unpack Endpoint
+    json_object *pPropTableJ = NULL;
+    int err = wrap_json_unpack(pEndpointJ, "{s:i,s:i,s:s,s:s,s:s,s:s,s:s,s:i,s:s,s:i,s:i,s:i,s:i,s:i,s:i,s:i,s:o}",
+                    "endpoint_id", &pEndpointInfo->endpointID, 
+                    "endpoint_type", &pEndpointInfo->type,
+                    "device_name", &pEndpointInfo->gsDeviceName, 
+                    "display_name", &pEndpointInfo->gsDisplayName, 
+                    "device_uri",  &pEndpointInfo->gsDeviceURI,
+                    "device_domain", &pEndpointInfo->gsDeviceDomain,
+                    "audio_role", &pEndpointInfo->pRoleName,
+                    "device_uri_type", &pEndpointInfo->deviceURIType,
+                    "hal_api_name", &pEndpointInfo->gsHALAPIName,
+                    "alsa_cardNum", &pEndpointInfo->alsaInfo.cardNum, 
+                    "alsa_deviceNum", &pEndpointInfo->alsaInfo.deviceNum, 
+                    "alsa_subDeviceNum", &pEndpointInfo->alsaInfo.subDeviceNum,
+                    "format_samplerate", &pEndpointInfo->format.sampleRate,
+                    "format_numchannels", &pEndpointInfo->format.numChannels,
+                    "format_sampletype",&pEndpointInfo->format.sampleType,
+                    "volume", &pEndpointInfo->iVolume,                    
+                    "property_table", &pPropTableJ                    
+                    );
+    if (err) {
+        AFB_ERROR("Unable to unpack JSON endpoint, =%s", wrap_json_get_error_string(err));
+        return AHL_POLICY_UTIL_FAIL;
+    }
+
+    // Unpack prop table
+    if(pPropTableJ)
+    {
+        pEndpointInfo->pPropTable = g_hash_table_new(g_str_hash, g_str_equal);
+
+        int nbProperties = json_object_array_length(pPropTableJ);
+        for(int i=0; i<nbProperties; i++)
+        {
+            json_object * propJ = json_object_array_get_idx(pPropTableJ,i);
+            if (propJ) {
+                char * pPropertyName = NULL;
+                json_object * pPropertyValueJ = NULL;
+
+                int err=wrap_json_unpack(propJ, "{s:s,s:o}",
+                                        "property_name", &pPropertyName, 
+                                        "property_value", &pPropertyValueJ);
+                if (err) {
+                    AFB_ERROR("Unable to unpack JSON endpoint, = %s", wrap_json_get_error_string(err));
+                    return AHL_POLICY_UTIL_FAIL;
+                }        
+
+                // Object type detection for property value (string = state, numeric = property)
+                json_type jType = json_object_get_type(pPropertyValueJ);
+                switch (jType) {
+                    case json_type_double:
+                        Add_Endpoint_Property_Double(pEndpointInfo,pPropertyName,json_object_get_double(pPropertyValueJ));
+                        break;
+                    case json_type_int:
+                        Add_Endpoint_Property_Int(pEndpointInfo,pPropertyName,json_object_get_int(pPropertyValueJ));
+                        break;
+                    case json_type_string:
+                        Add_Endpoint_Property_String(pEndpointInfo,pPropertyName,json_object_get_string(pPropertyValueJ));
+                        break;
+                    default:
+                        AFB_ERROR("Invalid property argument Property value not a valid json object query=%s", json_object_get_string(pPropertyValueJ));
+                        return AHL_POLICY_UTIL_FAIL;
+                }
+            }
+        }
+    }
+
+    return AHL_POLICY_UTIL_SUCCESS;
+}
+
+int PolicyCtxJSONToStream(json_object *pStreamJ, StreamInfoT * pPolicyStream)
+{
+    if(pStreamJ == NULL || pPolicyStream == NULL)
+    {
+        AFB_ERROR("Invalid arguments for PolicyCtxJSONToStream");
+        return AHL_POLICY_UTIL_FAIL;
+    }
+
+    //Unpack StreamInfo
+    json_object *pEndpointJ = NULL;
+    AFB_WARNING("json object query=%s", json_object_get_string(pStreamJ));
+    int err=wrap_json_unpack(pStreamJ, "{s:i,s:i,s:i,s:I,s:i,s:s,s:i,s:i,s:o}",
+                    "stream_id", &pPolicyStream->streamID, 
+                    "stream_state", &pPolicyStream->streamState,
+                    "stream_mute", &pPolicyStream->streamMute, 
+                    "stream_state_event", &pPolicyStream->streamStateEvent, 
+                    "endpoint_sel_mod",  &pPolicyStream->endpointSelMode,
+                    "role_name", &pPolicyStream->pRoleName,
+                    "priority", &pPolicyStream->iPriority,
+                    "interrupt_behavior", &pPolicyStream->eInterruptBehavior,
+                    "endpoint_info", &pEndpointJ
+                    );
+
+    if (err) {
+        AFB_ERROR("Unable to parse JSON stream information=%s", json_object_get_string(pStreamJ));
+        return AHL_POLICY_UTIL_FAIL;
+    }
+
+    int iRet = PolicyCtxJSONToEndpoint(pEndpointJ,pPolicyStream->pEndpointInfo);
+    if (iRet) {
+        return iRet;
+    }
+    return AHL_POLICY_UTIL_SUCCESS;
+}
+ 
\ No newline at end of file
diff --git a/src/ahl-policy-utils.h b/src/ahl-policy-utils.h
new file mode 100644
index 0000000..6adfa4e
--- /dev/null
+++ b/src/ahl-policy-utils.h
@@ -0,0 +1,177 @@
+/*
+ * Copyright (C) 2017 "Audiokinetic Inc"
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef AHL_POLICY_UTILS_INCLUDE
+#define AHL_POLICY_UTILS_INCLUDE
+
+#define AFB_BINDING_VERSION 2
+#include <json-c/json.h>
+#include <afb/afb-binding.h>
+#include <glib.h>
+
+#define AHL_POLICY_ACCEPT 1
+#define AHL_POLICY_REJECT 0
+#define AHL_POLICY_UTIL_SUCCESS 0
+#define AHL_POLICY_UTIL_FAIL 1
+
+typedef int endpointID_t;
+typedef int streamID_t;
+
+typedef enum StreamEvent {
+    STREAM_EVENT_START  = 0,   // Stream is inactive
+    STREAM_EVENT_STOP,         // Stream is running    
+    STREAM_EVENT_PAUSE,        // Audio stream paused
+    STREAM_EVENT_RESUME,       // Audio stream resumed
+    STREAM_EVENT_MUTED,        // Audio stream muted
+    STREAM_EVENT_UNMUTED,      // Audio stream unmuted
+    STREAM_EVENT_MAXVALUE      // Enum count, keep at the end
+} StreamEventT;
+
+typedef enum StreamMute {
+    STREAM_UNMUTED = 0,         // Stream is not muted
+    STREAM_MUTED,               // Stream is muted
+    STREAM_MUTE_MAXVALUE,       // Enum count, keep at the end
+} StreamMuteT;
+
+typedef enum EndpointType {
+    ENDPOINTTYPE_SOURCE = 0,        // source devices
+    ENDPOINTTYPE_SINK,              // sink devices
+    ENDPOINTTYPE_MAXVALUE           // Enum count, keep at the end
+} EndpointTypeT;
+
+typedef enum StreamState {
+    STREAM_STATE_IDLE  = 0,    // Stream is inactive
+    STREAM_STATE_RUNNING,      // Stream is active and running    
+    STREAM_STATE_PAUSED,       // Stream is active but paused
+    STREAM_STATE_MAXVALUE      // Enum count, keep at the end
+} StreamStateT;
+
+// Define default behavior of audio role when interrupting lower priority sources
+typedef enum InterruptBehavior {
+  INTERRUPTBEHAVIOR_CONTINUE = 0, // Continue to play lower priority source when interrupted (e.g. media may be ducked)
+  INTERRUPTBEHAVIOR_CANCEL,       // Abort playback of lower priority source when interrupted (e.g. non-important HMI feedback that does not make sense later)
+  INTERRUPTBEHAVIOR_PAUSE,        // Pause lower priority source when interrupted, to be resumed afterwards (e.g. non-temporal guidance)
+  INTERRUPTBEHAVIOR_MAXVALUE,     // Enum count, keep at the end
+} InterruptBehaviorT;
+
+typedef enum DeviceURIType {
+    DEVICEURITYPE_ALSA_HW = 0,  // Alsa hardware device URI
+    DEVICEURITYPE_ALSA_DMIX,    // Alsa Dmix device URI (only for playback devices)
+    DEVICEURITYPE_ALSA_DSNOOP,  // Alsa DSnoop device URI (only for capture devices)
+    DEVICEURITYPE_ALSA_SOFTVOL, // Alsa softvol device URI
+    DEVICEURITYPE_ALSA_PLUG,    // Alsa plug device URI
+    DEVICEURITYPE_ALSA_OTHER,   // Alsa domain URI device of unspecified type
+    DEVICEURITYPE_NOT_ALSA,     // Unknown (not ALSA domain)
+    DEVICEURITYPE_MAXVALUE      // Enum count, keep at the end
+} DeviceURITypeT;
+
+// CPU endianness assumed in all formats
+typedef enum SampleType {
+  AHL_FORMAT_UNKNOWN = -1,              // Unknown
+  AHL_FORMAT_U8 = 0,                    // Unsigned 8 bit
+  AHL_FORMAT_S16,                       // Signed 16 bit Little Endian
+  AHL_FORMAT_S24,                       // Signed 24 bit Little Endian using low three bytes in 32-bit word
+  AHL_FORMAT_S32,                       // Signed 32 bit Little Endian
+  AHL_FORMAT_FLOAT,                     // Float 32 bit Little Endian, Range -1.0 to 1.0
+  AHL_FORMAT_FLOAT64,                   // Float 64 bit Little Endian, Range -1.0 to 1.0
+  AHL_FORMAT_IEC958,                    // IEC-958 Little Endian (SPDIF)
+  AHL_FORMAT_MU_LAW,                    // Mu-Law
+  AHL_FORMAT_A_LAW,                     // A-Law
+  AHL_FORMAT_IMA_ADPCM,                 // Ima-ADPCM
+  AHL_FORMAT_MPEG,                      // MPEG
+  AHL_FORMAT_GSM,                       // GSM
+  AHL_FORMAT_G723,                      // G723
+  AHL_FORMAT_DSD,                       // Direct stream digital
+  AHL_FORMAT_MAXVALUE,                  // Enum count, keep at the end
+} SampleTypeT;
+
+typedef struct AudioFormat {
+    int         sampleRate;     // Sample rate
+    int         numChannels;    // Number of channels
+    SampleTypeT sampleType;     // Sample type
+    // TODO: Interleaving?
+    // TODO: Sample sub format?
+} AudioFormatT;
+
+typedef struct AlsaDeviceInfo {
+    int             cardNum;            // HW card number
+    int             deviceNum;          // HW device number                                 
+    int             subDeviceNum;       // HW sub device number
+} AlsaDeviceInfoT;
+
+typedef enum EndpointSelectionMode {
+    ENDPOINTSELMODE_AUTO = 0,          // Automatic endpoint selection based on config priority
+    ENDPOINTSELMODE_MANUAL,             // Explicit endpoint selection
+    ENDPOINTSELMODEMAXVALUE,            // Enum count, keep at the end
+} EndpointSelectionModeT;
+
+typedef struct EndpointInfo
+{
+    endpointID_t    endpointID;         // Unique endpoint ID (per type)
+    EndpointTypeT   type;               // Source or sink device
+    char *          gsDeviceName;       // Unique device card name 
+    char *          gsDisplayName;      // Application display name
+    char *          gsDeviceURI;        // Associated URI 
+    char *          gsDeviceDomain;     // Device URI domain (e.g. alsa or pulse)
+    char *          pRoleName;          // Role assigned to this endpoint 
+    DeviceURITypeT  deviceURIType;      // Device URI type (includes audio domain information)
+    char *          gsHALAPIName;       // HAL associated with the device (for volume control)
+    AlsaDeviceInfoT alsaInfo;           // ALSA specific device information
+    AudioFormatT    format;             // Preferred audio format supported (later could be array of supported formats)
+    int             iVolume;            // Storage for current endpoint volume (policy effected). 
+    GHashTable *    pPropTable;         // Storage for array of properties (policy effected)         
+} EndpointInfoT;
+
+typedef struct StreamInfo {
+    streamID_t              streamID;           // Stream unique ID
+    EndpointInfoT *         pEndpointInfo;      // Associated endpoint information (reference)
+    StreamStateT            streamState;        // Stream activity state
+    StreamMuteT             streamMute;         // Stream mute state
+    struct afb_event        streamStateEvent;   // Stream specific event for stream state changes
+    EndpointSelectionModeT  endpointSelMode;    // Automatic (priority based) or manual endpoint selection
+    char *                  pRoleName;          // Role string identifier (from role config but could be programatically overriden later)
+    int                     iPriority;          // Role normalized priority (0-100) (from role config but could be programatically overriden later)
+    InterruptBehaviorT      eInterruptBehavior; // Role behavior when interrupting lower priority streams (from role config but could be programatically overriden later)
+} StreamInfoT;
+
+
+typedef struct StreamPolicyInfo {
+    streamID_t      streamID;
+    int             RolePriority;
+    char *          pAudioRole;    
+    InterruptBehaviorT interruptBehavior;   
+    int             iDuckVolume;     //duck Volume
+} StreamPolicyInfoT;
+ 
+typedef struct EndPointPolicyInfo {
+    endpointID_t    endpointID;
+    EndpointTypeT   type;    
+    DeviceURITypeT  deviceType;
+    char *          pDeviceName;
+    char *          pHalApiName; 
+    int             iVolume;     //Current Volume            
+    GArray *        streamInfo; //List of playing or duck stream at a given endpoint
+} EndPointPolicyInfoT;
+
+void Add_Endpoint_Property_Double( EndpointInfoT * io_pEndpointInfo, char * in_pPropertyName, double in_dPropertyValue);
+void Add_Endpoint_Property_Int( EndpointInfoT * io_pEndpointInfo, char * in_pPropertyName, int in_iPropertyValue);
+void Add_Endpoint_Property_String( EndpointInfoT * io_pEndpointInfo, char * in_pPropertyName, const char * in_pPropertyValue);
+int PolicyEndpointStructToJSON(EndpointInfoT * pPolicyEndpoint, json_object **ppPolicyEndpointJ);
+int PolicyCtxJSONToEndpoint(json_object *pEndpointJ, EndpointInfoT * pPolicyStream);
+int PolicyStreamStructToJSON(StreamInfoT * pPolicyStream, json_object **ppPolicyStreamJ);
+int PolicyCtxJSONToStream(json_object *pStreamJ, StreamInfoT * pPolicyStream);
+
+#endif // AHL_POLICY_UTILS_INCLUDE
diff --git a/src/ahl-policy.c b/src/ahl-policy.c
index ff65d10..54634ff 100644
--- a/src/ahl-policy.c
+++ b/src/ahl-policy.c
@@ -1,6 +1,5 @@
 /*
  * Copyright (C) 2017 "Audiokinetic Inc"
- * Author Francois Thibault <fthibault@audiokinetic.com>
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -18,59 +17,1092 @@
 #define _GNU_SOURCE
 #include <stdio.h>
 #include <string.h>
+#include <stdbool.h>
+#include "wrap-json.h"
+#include "ahl-policy-utils.h"
+#include "ahl-interface.h"
+#include "ahl-policy.h"
 
-#include "ahl-binding.h"
+#ifndef AHL_DISCONNECT_POLICY
 
+//  Global Context
+PolicyLocalCtxT g_PolicyCtx;
 
-// This file provides example of custom, business logic driven policy actions that can affect behavior of the high level
-// TODO: Currently only isolated in separate source file. Objective is to make this to at least a shared lib plug-in
-// Going a step further would be to implement this within afb-controler policy plug-in (would require bi-directional access to HLB context)
 
-extern AHLCtxT g_AHLCtx; // TODO: Cannot stay if moved to external module 
+//  Helper Functions
+static int getStreamConfig(char *pAudioRole, StreamConfigT *pStreamConfig)
+{
+    if(pAudioRole == NULL || pStreamConfig==NULL)
+    {
+        return POLICY_FAIL;
+    }
 
-// Attribute of high-level binding (parsed), policy enforced
-typedef enum InterruptedBehavior {
-  INTERRUPTEDBEHAVIOR_CONTINUE = 0, // Continue to play when interrupted (e.g. media will be ducked)
-  INTERRUPTEDBEHAVIOR_CANCEL,       // Abort playback when interrupted (e.g. non-important HMI feedback that does not make sense later)
-  INTERRUPTEDBEHAVIOR_PAUSE,        // Pause source when interrupted, to be resumed afterwards (e.g. non-temporal guidance)
-  INTERRUPTEDBEHAVIOR_MAXVALUE, // Enum count, keep at the end
-} InterruptedBehaviorT;
+    if ( strcasecmp(pAudioRole,AHL_ROLE_WARNING) == 0 )
+    {
+        pStreamConfig->iNbMaxStream = 4;
+        pStreamConfig->iVolumeInit = 80; 
+        pStreamConfig->iVolumeDuckValue = 0;
+    }
+    else if ( strcasecmp(pAudioRole,AHL_ROLE_GUIDANCE) == 0 )
+    {
+        pStreamConfig->iNbMaxStream = 10;
+        pStreamConfig->iVolumeInit = 70; 
+        pStreamConfig->iVolumeDuckValue = 30;
+    }
+    else if ( strcasecmp(pAudioRole,AHL_ROLE_NOTIFICATION) == 0 )
+    {
+        pStreamConfig->iNbMaxStream = 4;
+        pStreamConfig->iVolumeInit = 80; 
+        pStreamConfig->iVolumeDuckValue = 10;
+    }
+    else if ( strcasecmp(pAudioRole,AHL_ROLE_COMMUNICATION) == 0 )
+    {
+        pStreamConfig->iNbMaxStream = 10;
+        pStreamConfig->iVolumeInit = 70; 
+        pStreamConfig->iVolumeDuckValue = 10;        
+    }
+    else if ( strcasecmp(pAudioRole,AHL_ROLE_ENTERTAINMENT) == 0 )
+    {
+        pStreamConfig->iNbMaxStream = MAX_ACTIVE_STREAM_POLICY;
+        pStreamConfig->iVolumeInit = 60; 
+        pStreamConfig->iVolumeDuckValue = 40;        
+    }
+    else if ( strcasecmp(pAudioRole,AHL_ROLE_SYSTEM) == 0 )
+    {
+        pStreamConfig->iNbMaxStream = 2;
+        pStreamConfig->iVolumeInit = 100; 
+        pStreamConfig->iVolumeDuckValue = 0;        
+    }
+    else if ( strcasecmp(pAudioRole,AHL_ROLE_STARTUP) == 0 )
+    {
+        pStreamConfig->iNbMaxStream = 1;
+        pStreamConfig->iVolumeInit = 90; 
+        pStreamConfig->iVolumeDuckValue = 0;        
+    }
+    else if ( strcasecmp(pAudioRole,AHL_ROLE_SHUTDOWN) == 0 )
+    {
+        pStreamConfig->iNbMaxStream = 1;
+        pStreamConfig->iVolumeInit = 90; 
+        pStreamConfig->iVolumeDuckValue = 0;        
+    }
+    return POLICY_SUCCESS;
+}
 
-PUBLIC int Policy_OpenStream(char *pAudioRole, EndpointTypeT endpointType, endpointID_t endpointID)
+static int PolicySetVolume(int iEndpointID, int iEndpointType, char *pHalApiName, char *AudioRole, DeviceURITypeT deviceType, int iVolume, bool bMute)
 {
-    return 1; // Policy allowed
+    if(pHalApiName == NULL)
+    {
+        AFB_WARNING("SetVolume cannot be accomplished without proper HAL association");    
+        return POLICY_FAIL;
+    }
+
+    if(AudioRole == NULL)
+    {
+        AFB_ERROR("Invalid AudioRole : %s",AudioRole);    
+        return POLICY_FAIL;
+    }
+
+    // Using audio role available from endpoint to target the right HAL control (build string based on convention)
+    GString * gsHALControlName = NULL;    
+    switch(deviceType)
+    {
+        case DEVICEURITYPE_ALSA_HW:
+            gsHALControlName  = g_string_new("Master_Playback_Volume");    
+            break;        
+        case DEVICEURITYPE_ALSA_DMIX:
+        case DEVICEURITYPE_ALSA_DSNOOP:
+        case DEVICEURITYPE_ALSA_PLUG:
+        case DEVICEURITYPE_ALSA_SOFTVOL:            
+            gsHALControlName  = g_string_new(AudioRole);
+            if(bMute == false)
+            {
+                AFB_DEBUG("Using ramp");
+                g_string_append(gsHALControlName,"_Ramp");   
+            }
+            else
+            {
+                AFB_DEBUG("Not using ramp");
+                g_string_append(gsHALControlName,"_Vol"); // no ramping     
+            }                        
+            break;
+        default:
+            //Set volume to zero for display purpose only.
+            //Not support yet
+            AFB_WARNING("Device Type %i is not support and can't set volume on HalName %s",deviceType, pHalApiName);
+            return POLICY_FAIL;
+            break;
+    }
+
+    // Set endpoint volume using HAL services (leveraging ramps etc.)
+    json_object *j_response, *j_query = NULL;
+ 
+    // Package query
+    int err = wrap_json_pack(&j_query,"{s:s,s:i}","label",gsHALControlName->str, "val",iVolume);
+    if (err) 
+    {
+        AFB_ERROR("Invalid query for HAL ctlset: %s with errorcode: %i",json_object_to_json_string(j_query), err);    
+        return POLICY_FAIL;
+    }
+
+    //TODO implement Volume limitation based on policy
+
+    // Set the volume using the HAL
+     err = afb_service_call_sync(pHalApiName, "ctlset", j_query, &j_response);
+     if (err) 
+     {
+         AFB_ERROR("Could not ctlset on HAL: %s with errorcode: %i",pHalApiName, err);    
+         return POLICY_FAIL;
+     }
+     AFB_DEBUG("HAL ctlset response=%s", json_object_to_json_string(j_response));
+
+     if (bMute == false) {
+        // Package event data
+        json_object * eventDataJ = NULL;
+        err = wrap_json_pack(&eventDataJ,"{s:s,s:i,s:i,s:i,s:s}","event_name", AHL_ENDPOINT_VOLUME_EVENT,"endpoint_id", iEndpointID, "endpoint_type", iEndpointType,"value",iVolume, "audio_role", AudioRole);
+        if (err) 
+        {
+            AFB_ERROR("Invalid event data for volume event %s with errorcode: %i",json_object_to_json_string(eventDataJ), err);    
+            return POLICY_FAIL;
+        }
+
+        audiohlapi_raise_event(eventDataJ);
+     }
+
+    return POLICY_SUCCESS; 
 }
 
-PUBLIC int Policy_SetVolume(EndpointTypeT endpointType, endpointID_t endpointID, char *volumeStr, int rampTimeMS)
+static int PolicyGetVolume(int iEndpointID, int iEndpointType, char *pHalApiName, char *AudioRole, DeviceURITypeT deviceType, int *pVolume)
 {
-    return 1; // Policy allowed
+    GString * gsHALControlName = NULL;
+
+    // Using audio role available from endpoint to target the right HAL control (build string based on convention)        
+    switch(deviceType)
+    {
+        case DEVICEURITYPE_ALSA_HW:
+            gsHALControlName  = g_string_new("Master_Playback_Volume");    
+            break;        
+        case DEVICEURITYPE_ALSA_DMIX:
+        case DEVICEURITYPE_ALSA_DSNOOP:
+        case DEVICEURITYPE_ALSA_PLUG:
+        case DEVICEURITYPE_ALSA_SOFTVOL:            
+            gsHALControlName  = g_string_new(AudioRole);
+            g_string_append(gsHALControlName,"_Vol"); // Or _Vol for direct control (no ramping)    
+            break;
+        default:
+            // Set volume to zero for display purpose only.
+            // Not supported yet
+            *pVolume = 0;
+            AFB_WARNING("Can't get volume on HAL: %s for device type: %d",pHalApiName,deviceType);
+            return POLICY_FAIL;
+    }
+
+    // Set endpoint volume using HAL services (leveraging ramps etc.)
+    json_object *j_response = NULL, *j_query = NULL;
+ 
+    // Package query
+    int err = wrap_json_pack(&j_query,"{s:s}","label",gsHALControlName->str);
+    if (err) 
+    {
+        AFB_WARNING("Invalid query for HAL ctlset: %s, errorcode: %i",json_object_to_json_string(j_query),err);    
+        return POLICY_FAIL;
+    }
+
+    //TODO implement Volume limitation based on policy
+
+    // Get the volume using the HAL
+     err = afb_service_call_sync(pHalApiName, "ctlget", j_query, &j_response);
+    if (err) 
+    {
+         AFB_WARNING("Could not ctlset on HAL: %s, errorcode: %i",pHalApiName, err);    
+         return POLICY_FAIL;
+     }
+    AFB_DEBUG("HAL ctlget response=%s", json_object_to_json_string(j_response));
+ 
+    // Parse response
+    json_object * jRespObj = NULL;
+    json_object_object_get_ex(j_response, "response", &jRespObj);
+    json_object * jVal = NULL;
+    int val1 = 0, val2 = 0; // Why 2 values?    
+
+    json_object_object_get_ex(jRespObj, "val", &jVal);
+    int nbElement = json_object_array_length(jVal);
+    if(nbElement == 2)
+    {          
+        err = wrap_json_unpack(jVal, "[ii]", &val1, &val2);
+        if (err) {
+            AFB_ERROR("Volume retrieve failed Could not retrieve volume value -> %s", json_object_get_string(jVal));
+            return POLICY_FAIL;
+        }
+        
+    }
+    else
+    {    
+        err = wrap_json_unpack(jVal, "[i]", &val1);
+        if (err) {
+            AFB_ERROR("Volume retrieve failed Could not retrieve volume value -> %s", json_object_get_string(jVal));
+            return POLICY_FAIL;
+        }
+        
+    }
+        
+   *pVolume = val1;
+
+     // Package event data
+    json_object * eventDataJ = NULL;
+    err = wrap_json_pack(&eventDataJ,"{s:s,s:i,s:i,s:i,s:s}","event_name", AHL_ENDPOINT_VOLUME_EVENT,"endpoint_id", iEndpointID, "endpoint_type", iEndpointType,"value",*pVolume, "audio_role", AudioRole);
+    if (err) 
+    {
+        AFB_ERROR("Invalid event data for volume event %s with errorcode: %i",json_object_to_json_string(eventDataJ), err);    
+        return POLICY_FAIL;
+    }
+
+    audiohlapi_raise_event(eventDataJ);
+
+    return POLICY_SUCCESS; 
 }
 
-PUBLIC int Policy_SetProperty(EndpointTypeT endpointType, endpointID_t endpointID, char *propertyName, char *propValueStr, int rampTimeMS)
+static void PolicyPostStateEvent(int iStreamID, StreamEventT eventState)
 {
-    return 1; // Policy allowed
+    
+    json_object * eventDataJ = NULL;
+    int err = wrap_json_pack(&eventDataJ,"{s:s,s:i,s:i}","event_name", AHL_STREAM_STATE_EVENT,"stream_id",iStreamID, "state_event",eventState);
+    if (err) 
+    {
+        AFB_ERROR("Invalid event data for stream state event: %s",json_object_to_json_string(eventDataJ));
+    }
+    else                    
+    {
+        audiohlapi_raise_event(eventDataJ);
+    }         
+}
+
+static EndPointPolicyInfoT *PolicySearchEndPoint(EndpointTypeT type, char *pDeviceName)
+{   
+    GArray *pcurEndpointArray = NULL;
+
+    if(type==ENDPOINTTYPE_SINK)
+    {
+        pcurEndpointArray = g_PolicyCtx.pSinkEndpoints;
+    }
+    else
+    {
+        pcurEndpointArray = g_PolicyCtx.pSourceEndpoints;
+    }
+
+    for(int i=0; i<pcurEndpointArray->len; i++)
+    {
+        EndPointPolicyInfoT * pCurEndpoint = &g_array_index(pcurEndpointArray,EndPointPolicyInfoT,i);    
+
+        if(strcasecmp(pCurEndpoint->pDeviceName,pDeviceName)==0)
+        {
+            return pCurEndpoint;
+        }
+    }
+
+    return NULL;
 }
 
 
-PUBLIC int Policy_SetState(EndpointTypeT endpointType, endpointID_t endpointID, char *pStateName, char *pStateValue)
+static int PolicyAddEndPoint(StreamInfoT *pStreamInfo)
 {
+    EndPointPolicyInfoT *pPolicyEndPoint = PolicySearchEndPoint(pStreamInfo->pEndpointInfo->type, pStreamInfo->pEndpointInfo->gsDeviceName);
+    if(pPolicyEndPoint == NULL)
+    {
+        //create EndPoint and add playing stream
+        EndPointPolicyInfoT newEndPointPolicyInfo;        
+        newEndPointPolicyInfo.endpointID  = pStreamInfo->pEndpointInfo->endpointID;
+        newEndPointPolicyInfo.type        = pStreamInfo->pEndpointInfo->type;
+        newEndPointPolicyInfo.deviceType  = pStreamInfo->pEndpointInfo->deviceURIType;
+        newEndPointPolicyInfo.pDeviceName = strdup(pStreamInfo->pEndpointInfo->gsDeviceName);
+        newEndPointPolicyInfo.pHalApiName = strdup(pStreamInfo->pEndpointInfo->gsHALAPIName);
+        newEndPointPolicyInfo.iVolume = pStreamInfo->pEndpointInfo->iVolume;
+        newEndPointPolicyInfo.streamInfo = g_array_new(FALSE, TRUE, sizeof(StreamPolicyInfoT));;
 
-    //Active rule check
- 
-    //Ducking rule settings
+        if(pStreamInfo->pEndpointInfo->type == ENDPOINTTYPE_SINK)
+        {
+            g_array_append_val(g_PolicyCtx.pSinkEndpoints, newEndPointPolicyInfo);
+        }
+        else
+        {
+            g_array_append_val(g_PolicyCtx.pSourceEndpoints, newEndPointPolicyInfo);
+        }            
+        
+    }
+    return POLICY_SUCCESS;    
+}
+
+
+static int PolicyAddStream(EndPointPolicyInfoT *pCurrEndPointPolicy, StreamInfoT *pStreamInfo)
+{
+    StreamPolicyInfoT newStreamPolicyInfo;
+
+    newStreamPolicyInfo.streamID = pStreamInfo->streamID;                    
+    newStreamPolicyInfo.RolePriority = pStreamInfo->iPriority;                    
+    newStreamPolicyInfo.pAudioRole = pStreamInfo->pRoleName;                    
+    newStreamPolicyInfo.interruptBehavior = pStreamInfo->eInterruptBehavior;                    
+    newStreamPolicyInfo.iDuckVolume = 0;                            
+    g_array_append_val(pCurrEndPointPolicy->streamInfo, newStreamPolicyInfo);                    
+    return POLICY_SUCCESS;    
+}
+
+static int PolicyRunningIdleTransition(EndPointPolicyInfoT *pCurrEndPointPolicy,StreamInfoT * pStreamInfo)
+{
+    int err=0;
+    if(pCurrEndPointPolicy == NULL || pCurrEndPointPolicy->streamInfo->len == 0)
+    {
+        //Remove endpoint
+        AFB_ERROR("StreamID not found in active Endpoint when Running to Idle transition is request");
+        return POLICY_FAIL; 
+    }
+    //Search for the matching stream
+    for(int i=0; i<pCurrEndPointPolicy->streamInfo->len; i++)
+    {
+        StreamPolicyInfoT currentPolicyStreamInfo = g_array_index(pCurrEndPointPolicy->streamInfo,StreamPolicyInfoT,i);
+        if(currentPolicyStreamInfo.streamID == pStreamInfo->streamID)
+        {
+            //remove the current stream
+            g_array_remove_index(pCurrEndPointPolicy->streamInfo, i);            
+            if(pCurrEndPointPolicy->streamInfo->len > 0) //need to unduck
+            {
+                //check the last element(Akways highest priority)
+                StreamPolicyInfoT HighPriorityStreamInfo = g_array_index(pCurrEndPointPolicy->streamInfo,StreamPolicyInfoT,pCurrEndPointPolicy->streamInfo->len-1);
+                switch(currentPolicyStreamInfo.interruptBehavior)
+                {
+                    case INTERRUPTBEHAVIOR_CONTINUE:                                    
+                        //unduck and set Volume back to original value
+                        err= PolicySetVolume(pCurrEndPointPolicy->endpointID, 
+                                             pCurrEndPointPolicy->type,
+                                             pCurrEndPointPolicy->pHalApiName, 
+                                             HighPriorityStreamInfo.pAudioRole, 
+                                             pCurrEndPointPolicy->deviceType, 
+                                             HighPriorityStreamInfo.iDuckVolume,
+                                             false);
+                        if(err)                
+                        {                                
+                            return POLICY_FAIL; 
+                        }
+                        
+                        return POLICY_SUCCESS;                                            
+                        break;
+                    case INTERRUPTBEHAVIOR_PAUSE:
+                        //pInterruptStreamInfo->streamState = STREAM_STATE_RUNNING;
+                        PolicyPostStateEvent(HighPriorityStreamInfo.streamID,STREAM_EVENT_RESUME);                        
+                        return POLICY_SUCCESS;                                            
+                        break;
+
+                    case INTERRUPTBEHAVIOR_CANCEL:
+                        PolicyPostStateEvent(HighPriorityStreamInfo.streamID,STREAM_EVENT_START);                        
+                        return POLICY_SUCCESS;                                            
+                        break;
+                    default:
+                        AFB_ERROR("Unsupported Intterupt Behavior");
+                        return POLICY_FAIL; 
+                        break;
+                } 
+            }            
+        }
+    }      
+    return POLICY_SUCCESS;
+}
+
+static int PolicyIdleRunningTransition(EndPointPolicyInfoT *pCurrEndPointPolicy, StreamInfoT * pStreamInfo)
+{
+    int err=0;    
+    if(pCurrEndPointPolicy->streamInfo == NULL)
+    {
+        AFB_ERROR("pCurrEndPointPolicy->streamInfo is null on an active endpoint");
+        return POLICY_FAIL;        
+    }
+
+    if(pCurrEndPointPolicy->streamInfo->len == 0) //No stream is playing on this endpoint
+    {                           
+        PolicyAddStream(pCurrEndPointPolicy, pStreamInfo);
+    }
+    else //Interrupt case
+    {
+        //check the last element 
+        StreamPolicyInfoT *pCurrentActiveStreamInfo = &g_array_index(pCurrEndPointPolicy->streamInfo,StreamPolicyInfoT,pCurrEndPointPolicy->streamInfo->len-1);
+        g_assert_nonnull(pCurrentActiveStreamInfo);
+        if(pStreamInfo->iPriority >= pCurrentActiveStreamInfo->RolePriority)
+        {
+            switch(pStreamInfo->eInterruptBehavior)
+            {
+                case INTERRUPTBEHAVIOR_CONTINUE:
+                    //Save the current Volume and set the docking volume
+                    pCurrentActiveStreamInfo->iDuckVolume = pStreamInfo->pEndpointInfo->iVolume;
+                    StreamConfigT StreamConfig;
+                    err = getStreamConfig(pStreamInfo->pRoleName, &StreamConfig);
+                    if(err == POLICY_FAIL)
+                    {
+                        AFB_ERROR("Error getting stream configuration for audiorole: %s", pStreamInfo->pRoleName);                        
+                        return POLICY_FAIL; 
+                    }
+                    err= PolicySetVolume(pCurrEndPointPolicy->endpointID, 
+                                         pCurrEndPointPolicy->type,
+                                         pCurrEndPointPolicy->pHalApiName, 
+                                         pCurrentActiveStreamInfo->pAudioRole, 
+                                         pCurrEndPointPolicy->deviceType, 
+                                         StreamConfig.iVolumeDuckValue,
+                                         false);
+                    if(err)                
+                    {
+                        AFB_ERROR("Set Volume return with errorcode%i for streamID: %i and Hal:%s", err, pCurrentActiveStreamInfo->streamID, pCurrEndPointPolicy->pHalApiName);                        
+                        return POLICY_FAIL; 
+                    }                                            
+                    break;
+                case INTERRUPTBEHAVIOR_PAUSE:
+                    PolicyPostStateEvent(pCurrentActiveStreamInfo->streamID,STREAM_EVENT_PAUSE);                        
+                    break;
+
+                case INTERRUPTBEHAVIOR_CANCEL:
+                    PolicyPostStateEvent(pCurrentActiveStreamInfo->streamID,STREAM_EVENT_STOP);                        
+                    g_array_remove_index(pCurrEndPointPolicy->streamInfo, pCurrEndPointPolicy->streamInfo->len-1);
+                    break;
+                default:
+                    AFB_ERROR("Unsupported Intterupt Behavior");
+                    return AHL_POLICY_REJECT; 
+                    break;
+
+            } 
+
+            //Add the playing stream at last
+            PolicyAddStream(pCurrEndPointPolicy, pStreamInfo);
+        }
+        else
+        {
+            //Higher Priority Stream is playing
+            AFB_ERROR("Higher Priority Stream is playing");
+            return POLICY_FAIL; 
+        }
+
+                        
+    }
+
+    return POLICY_SUCCESS;
+}
+
+static void PolicySpeedModify(int speed)
+{
+    
+    for(int i=0; i<g_PolicyCtx.pSinkEndpoints->len; i++)
+    {
+        EndPointPolicyInfoT * pCurEndpoint = &g_array_index(g_PolicyCtx.pSinkEndpoints,EndPointPolicyInfoT,i);    
+        if(pCurEndpoint == NULL)
+        {
+            AFB_WARNING("Sink Endpoint not found");
+            return;
+        }
+
+        //check if active 
+        if(pCurEndpoint->streamInfo->len > 0 )
+        {
+            StreamPolicyInfoT * pCurStream = &g_array_index(pCurEndpoint->streamInfo,StreamPolicyInfoT,pCurEndpoint->streamInfo->len-1);            
+            if(strcasecmp(pCurStream->pAudioRole,AHL_ROLE_ENTERTAINMENT)==0)
+            {
+                if(speed > 30 && speed < 100)
+                {
+                    int volume =speed;
+                    PolicySetVolume(pCurEndpoint->endpointID,
+                                    pCurEndpoint->type,                                    
+                                    pCurEndpoint->pHalApiName,
+                                    pCurStream->pAudioRole,
+                                    pCurEndpoint->deviceType,                                    
+                                    volume,
+                                    false); 
+                }                
+            }            
+        }
+    }
+}
+
+static int RetrieveAssociatedHALAPIName(EndpointInfoT * io_pEndpointInfo)
+{
+    if(g_PolicyCtx.pHALList)
+    {
+        for(int i=0; i<g_PolicyCtx.pHALList->len; i++)
+        {
+            HalInfoT *pHalInfo = g_ptr_array_index(g_PolicyCtx.pHALList, i);
+            // Retrieve card number (e.g. hw:0)
+            int iCardNum = atoi(pHalInfo->pDevID+3);
+            if (iCardNum == io_pEndpointInfo->alsaInfo.cardNum) {
+                io_pEndpointInfo->gsHALAPIName=strdup(pHalInfo->pAPIName);
+                io_pEndpointInfo->gsDisplayName=strdup(pHalInfo->pDisplayName);
+                return POLICY_SUCCESS;
+            }            
+        }
+    }
+    
+    io_pEndpointInfo->gsHALAPIName=strdup(AHL_POLICY_UNDEFINED_HALNAME);
+    io_pEndpointInfo->gsDisplayName=strdup(AHL_POLICY_UNDEFINED_DISPLAYNAME);
+    
+    return POLICY_FAIL;
+}
+
+static int GetHALList(void)
+{
+    json_object *j_response, *j_query = NULL;
+    int err; 
+    err = afb_service_call_sync("alsacore", "hallist", j_query, &j_response);
+    if (err) {
+        AFB_ERROR("Could not retrieve list of HAL from ALSA core");
+        return POLICY_FAIL;
+    }
+    AFB_DEBUG("ALSAcore hallist response=%s", json_object_to_json_string(j_response));
+
+    // Look through returned list for matching card
+    json_object * jRespObj = NULL;
+    json_object_object_get_ex(j_response, "response", &jRespObj);
+    int iNumHAL = json_object_array_length(jRespObj);
+    for ( int i = 0 ; i < iNumHAL; i++)
+    {
+        json_object * jHAL = json_object_array_get_idx(jRespObj,i);
+        char * pDevIDStr = NULL;
+        char * pAPIName = NULL;
+        char * pShortName = NULL;
+        
+        int err = wrap_json_unpack(jHAL, "{s:s,s:s,s:s}", "devid", &pDevIDStr,"api", &pAPIName,"shortname",&pShortName);
+        if (err) {
+            AFB_ERROR("Could not retrieve devid string=%s", json_object_get_string(jHAL));
+            return POLICY_FAIL;
+        }
+
+        HalInfoT *pHalInfo = (HalInfoT*)malloc(sizeof(HalInfoT));
+        if(pHalInfo == NULL)
+        {
+            AFB_ERROR("Unable to allocate memory for HalInfo");
+            return POLICY_FAIL;
+        }
+
+        pHalInfo->pDevID = strdup(pDevIDStr);
+        pHalInfo->pAPIName = strdup(pAPIName);
+        pHalInfo->pDisplayName = strdup(pShortName);
+
+        g_ptr_array_add( g_PolicyCtx.pHALList, pHalInfo);
+    }
+
+    return POLICY_SUCCESS;
+}
+
+//
+//  Policy API Functions
+//
+int Policy_OpenStream(json_object *pPolicyStreamJ)
+{
+    StreamInfoT PolicyStream;    
+    EndpointInfoT EndpointInfo;
+    PolicyStream.pEndpointInfo =&EndpointInfo;
+
+    int err = PolicyCtxJSONToStream(pPolicyStreamJ, &PolicyStream);
+    if(err == AHL_POLICY_UTIL_FAIL)
+    {
+        return AHL_POLICY_ACCEPT;     
+    }
+
+    // Example rule -> when system is in shutdown or low power mode, no audio stream can be opened (return AHL_POLICY_REJECT)
+    // Should receive event from lower level layer
+    if(g_PolicyCtx.systemState != SYSTEM_NORMAL)
+    {
+        return AHL_POLICY_REJECT;
+    } 
+  
+    StreamConfigT StreamConfig;
+    err = getStreamConfig(PolicyStream.pRoleName, &StreamConfig);
+    if(err == POLICY_FAIL)
+    {
+        return AHL_POLICY_ACCEPT;     
+    }
+
+    if(PolicyStream.pEndpointInfo->deviceURIType != DEVICEURITYPE_NOT_ALSA) {
+        err=PolicyGetVolume(PolicyStream.pEndpointInfo->endpointID, 
+                            PolicyStream.pEndpointInfo->type,
+                            PolicyStream.pEndpointInfo->gsHALAPIName, 
+                            PolicyStream.pEndpointInfo->pRoleName, 
+                            PolicyStream.pEndpointInfo->deviceURIType, 
+                            &PolicyStream.pEndpointInfo->iVolume);
+        if(err == POLICY_FAIL)
+        {
+            return AHL_POLICY_REJECT;
+        }
+    }
+
+    err = PolicyAddEndPoint(&PolicyStream);
+    if(err == POLICY_FAIL)
+    {
+        return AHL_POLICY_REJECT;
+    }
+    return AHL_POLICY_ACCEPT; 
+}
 
-    return AUDIOHL_POLICY_ACCEPT;    
+int Policy_CloseStream(json_object *pPolicyStreamJ)
+{
+    //TODO remove Endpoint when there is no stream
+    StreamInfoT PolicyStream;    
+    EndpointInfoT EndpointInfo;
+    PolicyStream.pEndpointInfo =&EndpointInfo;
+    int err = PolicyCtxJSONToStream(pPolicyStreamJ, &PolicyStream);
+    if(err == AHL_POLICY_UTIL_FAIL)
+    {
+        return AHL_POLICY_ACCEPT;     
+    }
+
+    return AHL_POLICY_ACCEPT; 
 }
 
-PUBLIC int Policy_PostSoundEvent(char *eventName, char *audioRole, char *mediaName, void *audioContext)
+int  Policy_SetStreamState(json_object *pPolicyStreamJ)
 {
-    return 1; // Policy allowed
+    //TODO    
+    // Optional: Mute endpoint before activation, unmute afterwards (after a delay?) to avoid noises
+    StreamInfoT PolicyStream;    
+    EndpointInfoT EndpointInfo;
+    PolicyStream.pEndpointInfo =&EndpointInfo;
+
+
+    StreamStateT streamState = 0;
+    StreamInfoT * pPolicyStream = &PolicyStream;
+    int err = PolicyCtxJSONToStream(pPolicyStreamJ, pPolicyStream);
+    if(err == AHL_POLICY_UTIL_FAIL)
+    {
+        return AHL_POLICY_ACCEPT;     
+    }
+
+    json_object *streamStateJ=NULL;
+
+    if(!json_object_object_get_ex(pPolicyStreamJ, "arg_stream_state", &streamStateJ))
+    {
+        return AHL_POLICY_ACCEPT;     
+    }
+    streamState = (StreamStateT)json_object_get_int(streamStateJ);
+
+    //Change of state
+    if(pPolicyStream->streamState != streamState)
+    {
+        //seach corresponding endpoint and gather information on it        
+        EndPointPolicyInfoT *pCurrEndPointPolicy = PolicySearchEndPoint(pPolicyStream->pEndpointInfo->type , pPolicyStream->pEndpointInfo->gsDeviceName);
+    
+        switch(pPolicyStream->streamState)
+        {
+            case STREAM_STATE_IDLE:            
+                switch(streamState)
+                {
+                    case STREAM_STATE_RUNNING:
+                        err = PolicyIdleRunningTransition(pCurrEndPointPolicy, pPolicyStream);
+                        if(err)
+                        {
+                            return AHL_POLICY_REJECT;  
+                        }                        
+                        PolicyPostStateEvent(pPolicyStream->streamID,STREAM_EVENT_START); 
+                        break;
+                    case STREAM_STATE_PAUSED:
+                        err = PolicyIdleRunningTransition(pCurrEndPointPolicy, pPolicyStream);
+                        if(err)
+                        {
+                            return AHL_POLICY_REJECT;  
+                        }  
+                        PolicyPostStateEvent(pPolicyStream->streamID,STREAM_EVENT_PAUSE); 
+                        break;
+                    default:
+                        return AHL_POLICY_REJECT;  
+                        break;
+                }
+                break;
+            case STREAM_STATE_RUNNING:    
+                switch(streamState)
+                {
+                    case STREAM_STATE_IDLE:
+                        err = PolicyRunningIdleTransition(pCurrEndPointPolicy, pPolicyStream);
+                        if(err)
+                        {
+                            return AHL_POLICY_REJECT;  
+                        }                                            
+                        PolicyPostStateEvent(pPolicyStream->streamID,STREAM_EVENT_STOP);                                       
+                        break;
+                    case STREAM_STATE_PAUSED:
+                        PolicyPostStateEvent(pPolicyStream->streamID,STREAM_EVENT_PAUSE);                                       
+                        break;
+                    default:
+                        return AHL_POLICY_REJECT;  
+                        break;
+                }
+                break;
+            case STREAM_STATE_PAUSED:    
+                switch(streamState)
+                {
+                    case STREAM_STATE_IDLE:
+                        err = PolicyRunningIdleTransition(pCurrEndPointPolicy, pPolicyStream);
+                        if(err)
+                        {
+                            return AHL_POLICY_REJECT;  
+                        }                        
+                        PolicyPostStateEvent(pPolicyStream->streamID,STREAM_EVENT_STOP);    
+                        break;
+                    case STREAM_STATE_RUNNING:
+                        PolicyPostStateEvent(pPolicyStream->streamID,STREAM_EVENT_RESUME); 
+                        break;                 
+                    default:
+                        return AHL_POLICY_REJECT;  
+                        break;
+                }
+                break;
+            default:
+                return AHL_POLICY_REJECT;  
+                break;
+        }      
+    }
+    return AHL_POLICY_ACCEPT; 
 }
 
-PUBLIC int Policy_AudioDeviceChange()
+int  Policy_SetStreamMute(json_object *pPolicyStreamJ)
 {
-    // Allow or disallow a new audio device
-    // Raise events to engage device switching
-    // Policy can also assign audio role(s) for device
-    return 1; // Policy allowed
+    StreamMuteT streamMute = 0;
+    StreamInfoT PolicyStream;    
+    EndpointInfoT EndpointInfo;
+    PolicyStream.pEndpointInfo =&EndpointInfo;
+    StreamInfoT * pPolicyStream = &PolicyStream;
+
+    int err = PolicyCtxJSONToStream(pPolicyStreamJ, pPolicyStream);
+    if(err == AHL_POLICY_UTIL_FAIL)
+    {
+        return AHL_POLICY_ACCEPT;     
+    }
+
+    json_object *streamMuteJ=NULL;
+
+    if(!json_object_object_get_ex(pPolicyStreamJ, "mute_state", &streamMuteJ))
+    {
+        return AHL_POLICY_ACCEPT;     
+    }
+    streamMute = (StreamMuteT)json_object_get_int(streamMuteJ);
+
+    if(streamMute != pPolicyStream->streamMute)
+    {
+        if(streamMute == STREAM_MUTED)
+        {
+
+            err= PolicySetVolume(pPolicyStream->pEndpointInfo->endpointID, 
+                                pPolicyStream->pEndpointInfo->type,
+                                pPolicyStream->pEndpointInfo->gsHALAPIName,
+                                pPolicyStream->pRoleName,
+                                pPolicyStream->pEndpointInfo->deviceURIType,
+                                0,                                    
+                                true);
+            if(err)                
+            {
+                AFB_ERROR("StreamID:%i Set Volume return with errorcode%i",pPolicyStream->streamID, err);                        
+                return AHL_POLICY_REJECT;  
+            }   
+            PolicyPostStateEvent(pPolicyStream->streamID,STREAM_EVENT_MUTED); 
+        }
+        else
+        {
+            err= PolicySetVolume(pPolicyStream->pEndpointInfo->endpointID,
+                                pPolicyStream->pEndpointInfo->type,
+                                pPolicyStream->pEndpointInfo->gsHALAPIName,
+                                pPolicyStream->pRoleName,
+                                pPolicyStream->pEndpointInfo->deviceURIType,                                    
+                                pPolicyStream->pEndpointInfo->iVolume,
+                                true);        
+            if(err)                
+            {
+                AFB_ERROR("Endpoint:%i Set Volume return with errorcode%i",pPolicyStream->streamID, err);                        
+                return AHL_POLICY_REJECT;  
+            }   
+            PolicyPostStateEvent(pPolicyStream->streamID,STREAM_EVENT_UNMUTED); 
+
+        }
+
+        pPolicyStream->streamMute = streamMute;
+    }
+    
+    return AHL_POLICY_ACCEPT;
 }
+
+int Policy_SetVolume(json_object *pPolicyEndpointJ)
+{
+    char *volumeStr = NULL;
+    EndpointInfoT EndpointInfo;
+  
+    int err = PolicyCtxJSONToEndpoint(pPolicyEndpointJ, &EndpointInfo);
+    if(err == AHL_POLICY_UTIL_FAIL)
+    {
+        return AHL_POLICY_ACCEPT;     
+    }
+
+    json_object *volumeJ=NULL;
+
+    if(!json_object_object_get_ex(pPolicyEndpointJ, "arg_volume", &volumeJ))
+    {
+        return AHL_POLICY_ACCEPT;     
+    }
+    volumeStr = (char*)json_object_get_string(volumeJ);
+
+    // TODO: Parse volume string to support increment/absolute/percent notation (or delegate to action / policy layer to interpret)
+    int vol = atoi(volumeStr);
+    
+    //Set the volume
+    err= PolicySetVolume(EndpointInfo.endpointID, 
+                         EndpointInfo.type,
+                         EndpointInfo.gsHALAPIName,
+                         EndpointInfo.pRoleName,
+                         EndpointInfo.deviceURIType,                            
+                         vol,
+                         false);    
+    if (err) 
+    {
+        AFB_ERROR("Set Volume return with errorcode%i", err);    
+        return AHL_POLICY_REJECT;
+    }
+
+    return AHL_POLICY_ACCEPT; 
+}
+
+int Policy_SetProperty(json_object *pPolicyEndpointJ)
+{
+
+    char *propertyName = NULL;
+    EndpointInfoT EndpointInfo;
+
+    int err = PolicyCtxJSONToEndpoint(pPolicyEndpointJ, &EndpointInfo);
+    if(err == AHL_POLICY_UTIL_FAIL)
+    {
+        return AHL_POLICY_ACCEPT;     
+    }
+
+    json_object *propertyNameJ=NULL;
+
+    if(!json_object_object_get_ex(pPolicyEndpointJ, "arg_property_name", &propertyNameJ))
+    {
+        return AHL_POLICY_ACCEPT;     
+    }
+    propertyName = (char*)json_object_get_string(propertyNameJ);
+
+    json_object *propValueJ;
+    if(!json_object_object_get_ex(pPolicyEndpointJ, "arg_property_value", &propValueJ))
+    {
+        return AHL_POLICY_ACCEPT;     
+    }
+
+    gpointer *key_value=NULL;
+
+    key_value = g_hash_table_lookup(EndpointInfo.pPropTable,propertyName);
+    if(key_value == NULL)
+    {
+        AFB_ERROR("Can't find property %s, request will be rejected", propertyName);
+        return AHL_POLICY_REJECT; 
+    }
+
+    //Get JsonObjectype
+    json_type currentjType = json_object_get_type((json_object*)key_value);
+    json_type newjType = json_object_get_type(propValueJ);
+
+    //Apply policy on set property if needed here
+    //Here we only validate that the type is the same
+    if(currentjType != newjType)
+    {
+        AFB_ERROR("Property Value Type is wrong");
+        return AHL_POLICY_REJECT; 
+    }
+
+
+    //Create a new Json Object    
+    json_object *pEventDataJ = NULL;
+    err = wrap_json_pack(&pEventDataJ,"{s:s,s:i,s:i,s:s,s:o,s:s}",
+                        "event_name", AHL_ENDPOINT_PROPERTY_EVENT,
+                        "endpoint_id", EndpointInfo.endpointID, 
+                        "endpoint_type", EndpointInfo.type,
+                        "property_name", propertyName,
+                        "value",propValueJ, 
+                        "audio_role", EndpointInfo.pRoleName);
+    if(err)
+    {
+        AFB_ERROR("Unable to pack property event");        
+        return AHL_POLICY_REJECT;
+    }
+    //Raise Event to update HLB
+    audiohlapi_raise_event(pEventDataJ);
+
+    return AHL_POLICY_ACCEPT;
+}
+
+int Policy_PostAction(json_object *pPolicyActionJ)
+{
+    char * actionName = NULL;  
+    char * audioRole = NULL;
+    char * mediaName = NULL;
+    json_object *actionContext = NULL;
+
+    int err = wrap_json_unpack(pPolicyActionJ, "{s:s,s:s,s?s,s?o}", "action_name", &actionName,"audio_role",&audioRole,"media_name",&mediaName,"action_context",&actionContext);
+    if (err) {
+        AFB_ERROR("Unable to pack JSON endpoint, =%s", wrap_json_get_error_string(err));
+        return AHL_POLICY_REJECT;
+    }
+    
+    // TODO: Any event with media specified should trigger action on provided rendering services (e.g. Wwise binding, gstreamer file player wrapper, MPDC? simple ALSA player (aplay)?)
+    // Example (when the policy is hooked to CAN events). Post audio playback events other than safety during reverse gear engaged declined
+    // Example post HMI audio role playback events declined when higher priority streams are active
+    
+    //In this use case just return the action back to highlevel binding.
+
+    json_object *pEventDataJ = NULL;
+    err = wrap_json_pack(&pEventDataJ, "{s:s,s:s,s:s,s?s,s?o}", "event_name", AHL_POST_ACTION_EVENT, "action_name", &actionName,"audio_role",&audioRole,"media_name",&mediaName,"action_context",&actionContext);
+    if (err) {
+        AFB_ERROR("Unable to pack JSON endpoint, =%s", wrap_json_get_error_string(err));
+        return AHL_POLICY_REJECT;
+    }
+    audiohlapi_raise_event(pEventDataJ);
+
+    return AHL_POLICY_ACCEPT;
+}
+
+int Policy_Endpoint_Init(json_object *pPolicyEndpointJ)
+{
+    EndpointInfoT EndpointInfo;
+  
+    int err = PolicyCtxJSONToEndpoint(pPolicyEndpointJ, &EndpointInfo);
+    if(err == AHL_POLICY_UTIL_FAIL)
+    {
+        return AHL_POLICY_REJECT;     
+    }
+
+    if (EndpointInfo.deviceURIType != DEVICEURITYPE_NOT_ALSA) {
+        // Update Hal Name
+        err = RetrieveAssociatedHALAPIName(&EndpointInfo);
+        if (err) {
+            AFB_ERROR("HAL not found for Device %s", EndpointInfo.gsDeviceName);
+            return AHL_POLICY_REJECT;     
+        }
+
+        //Set Init Volume
+        StreamConfigT StreamConfig;
+        getStreamConfig(EndpointInfo.pRoleName, &StreamConfig);
+        err = PolicySetVolume(EndpointInfo.endpointID, 
+                            EndpointInfo.type,
+                            EndpointInfo.gsHALAPIName, 
+                            EndpointInfo.pRoleName, 
+                            EndpointInfo.deviceURIType, 
+                            StreamConfig.iVolumeInit,
+                            false);
+        if(err) {                                
+            return AHL_POLICY_REJECT;     
+        }
+    }
+
+    // Test example
+    Add_Endpoint_Property_Int(&EndpointInfo,AHL_PROPERTY_EQ_LOW,3);
+    Add_Endpoint_Property_Int(&EndpointInfo,AHL_PROPERTY_EQ_MID,0);
+    Add_Endpoint_Property_Int(&EndpointInfo,AHL_PROPERTY_EQ_HIGH,6);
+    Add_Endpoint_Property_Int(&EndpointInfo,AHL_PROPERTY_BALANCE,0);
+    Add_Endpoint_Property_Int(&EndpointInfo,AHL_PROPERTY_FADE,30);
+    Add_Endpoint_Property_String(&EndpointInfo,"preset_name","flat");
+
+
+    gpointer *key_value = g_hash_table_lookup(EndpointInfo.pPropTable,AHL_PROPERTY_BALANCE);
+    if(key_value == NULL)
+    {
+        AFB_ERROR("Can't find property %s, request will be rejected", AHL_PROPERTY_BALANCE);
+        return AHL_POLICY_REJECT; 
+    }
+
+    //Create a new Json Object
+    json_object *pNewPolicyEndpointJ = NULL;
+    err = PolicyEndpointStructToJSON(&EndpointInfo, &pNewPolicyEndpointJ);
+    if (err == AHL_POLICY_UTIL_FAIL)
+    {
+        return AHL_POLICY_REJECT;
+    } 
+    json_object *paramJ= json_object_new_string(AHL_ENDPOINT_INIT_EVENT);
+    json_object_object_add(pNewPolicyEndpointJ, "event_name", paramJ);
+
+    //Raise Event to update HLB
+    audiohlapi_raise_event(pNewPolicyEndpointJ);
+
+    return AHL_POLICY_ACCEPT; // No errors
+}
+
+int Policy_Init()
+{
+    // Initialize Ressources
+    g_PolicyCtx.pSourceEndpoints =g_array_new(FALSE,TRUE,sizeof(EndPointPolicyInfoT));
+    g_PolicyCtx.pSinkEndpoints = g_array_new(FALSE,TRUE,sizeof(EndPointPolicyInfoT));    
+    g_PolicyCtx.pHALList = g_ptr_array_new_with_free_func(g_free);
+
+    //Get HalList
+    GetHALList();
+
+    //Set System Normal for now, this should be set by an event
+    //TODO: Receive event from low level
+    g_PolicyCtx.systemState = SYSTEM_NORMAL;
+
+    //register audio backend events
+    //This is to simulate can bus, only used for demo
+    json_object *queryurl, *responseJ, *eventsJ;
+    
+    eventsJ = json_object_new_array();
+    json_object_array_add(eventsJ, json_object_new_string("audiod_system_event"));
+    queryurl = json_object_new_object();
+    json_object_object_add(queryurl, "events", eventsJ);
+    int returnResult = afb_service_call_sync("audiod", "subscribe", queryurl, &responseJ);
+    if (returnResult) {
+        AFB_ERROR("Fail subscribing to Audio Backend System events");
+        return AHL_POLICY_REJECT;
+    }
+    return AHL_POLICY_ACCEPT;
+}
+ 
+void Policy_Term()
+{
+    //Free Ressources
+    if (g_PolicyCtx.pHALList) {
+        g_ptr_array_free(g_PolicyCtx.pHALList,TRUE);
+        g_PolicyCtx.pHALList = NULL;
+    }
+
+    for(int i=0; i<g_PolicyCtx.pSourceEndpoints->len; i++)
+    {
+        EndPointPolicyInfoT * pCurEndpoint = &g_array_index(g_PolicyCtx.pSourceEndpoints,EndPointPolicyInfoT,i);    
+        g_array_free(pCurEndpoint->streamInfo,TRUE);
+        pCurEndpoint->streamInfo= NULL;
+    }
+
+    for(int i=0; i<g_PolicyCtx.pSinkEndpoints->len; i++)
+    {
+        EndPointPolicyInfoT * pCurEndpoint = &g_array_index(g_PolicyCtx.pSinkEndpoints,EndPointPolicyInfoT,i);    
+        g_array_free(pCurEndpoint->streamInfo,TRUE);
+        pCurEndpoint->streamInfo = NULL;
+    }
+    
+    g_array_free(g_PolicyCtx.pSourceEndpoints,TRUE);
+    g_PolicyCtx.pSourceEndpoints = NULL;
+    g_array_free(g_PolicyCtx.pSinkEndpoints,TRUE);
+    g_PolicyCtx.pSinkEndpoints = NULL;
+}
+
+void Policy_OnEvent(const char *evtname, json_object *eventJ)
+{
+    AFB_DEBUG("Policy received event %s", evtname);
+	char *eventName = NULL;
+	json_object *event_parameter = NULL;
+    int speed = 0;
+
+    if(strcasecmp(evtname, "audiod/system_events")==0)
+    {
+        int err = wrap_json_unpack(eventJ, "{s:s,s:o}", "event_name", &eventName, "event_parameter", &event_parameter);
+        if (err) {        
+            AFB_WARNING("Invalid arguments, Args not a valid json object query=%s", json_object_get_string(eventJ));
+            return;
+        }
+    
+        if(strcasecmp(eventName, "speed")==0)
+        {
+            AFB_NOTICE("Invalid arguments, Args not a valid json object query=%s", json_object_get_string(event_parameter));
+            err = wrap_json_unpack(event_parameter, "{s:i}", "speed_value", &speed);
+            if (err) {        
+                AFB_WARNING("Invalid arguments, Args not a valid json object query=%s", json_object_get_string(event_parameter));
+                return;
+            }   
+            //When speed change Modify volume on Endpoint where entertainment change
+            PolicySpeedModify(speed);
+        }
+    }
+}
+
+#endif // AHL_DISCONNECT_POLICY
\ No newline at end of file
diff --git a/src/ahl-policy.h b/src/ahl-policy.h
new file mode 100644
index 0000000..d1cf87e
--- /dev/null
+++ b/src/ahl-policy.h
@@ -0,0 +1,73 @@
+/*
+ * Copyright (C) 2017 "Audiokinetic Inc"
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef AHL_POLICY_INCLUDE
+#define AHL_POLICY_INCLUDE
+#include "ahl-policy-utils.h"
+
+#ifndef AHL_DISCONNECT_POLICY
+
+#define MAX_ACTIVE_STREAM_POLICY 30
+#define POLICY_FAIL     1
+#define POLICY_SUCCESS  0
+
+#define AHL_POLICY_UNDEFINED_HALNAME "UNDEFINED"
+#define AHL_POLICY_UNDEFINED_DISPLAYNAME "DeviceNotFound"
+
+typedef enum SystemState {
+    SYSTEM_STARTUP = 0,     // Startup
+    SYSTEM_SHUTDOWN,        // ShutDown
+    SYSTEM_NORMAL,          // Normal
+    SYSTEM_LOW_POWER,       // Low Power, save mode
+    SYSTEM_MAXVALUE         // Enum count, keep at the end
+} SystemStateT;
+
+
+typedef struct HalInfo {
+    char *pDevID;
+    char *pAPIName;
+    char *pDisplayName;
+} HalInfoT;
+
+typedef struct StreamConfig {
+    int iNbMaxStream;
+    int iVolumeInit;
+    int iVolumeDuckValue;
+} StreamConfigT;
+
+// Global Policy Local context
+typedef struct PolicyLocalCtx {
+    GArray *     pSourceEndpoints; // List of Source Endpoint with playing stream or interrupted stream
+    GArray *     pSinkEndpoints;   // List of Sink Endpoint with playing stream or interrupted stream
+    GPtrArray *  pHALList;
+    SystemStateT systemState;
+} PolicyLocalCtxT;
+
+int  Policy_Endpoint_Init(json_object *pPolicyEndpointJ);
+int  Policy_OpenStream(json_object *pPolicyStreamJ);
+int  Policy_CloseStream(json_object *pPolicyStreamJ);
+int  Policy_SetStreamState(json_object *pPolicyStreamJ);
+int  Policy_SetStreamMute(json_object *pPolicyStreamJ);
+int  Policy_PostAction(json_object *pPolicyActionJ);
+int  Policy_SetVolume(json_object *pPolicyEndpointJ);
+int  Policy_SetProperty(json_object *pPolicyEndpointJ);
+int  Policy_Init();
+void Policy_Term(); 
+void Policy_OnEvent(const char *evtname, json_object *eventJ);
+
+extern void audiohlapi_raise_event(json_object * pEventDataJ);
+#endif // AHL_DISCONNECT_POLICY
+#endif // AHL_POLICY_INCLUDE
\ No newline at end of file