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-rw-r--r--ctrl/facemgr/src/api.c81
-rw-r--r--ctrl/facemgr/src/facelet.c6
-rw-r--r--ctrl/facemgr/src/interfaces/android_utility/android_utility.c4
-rw-r--r--ctrl/facemgr/src/interfaces/hicn_light/hicn_light.c5
-rw-r--r--ctrl/facemgr/src/interfaces/priority_controller/priority_controller.c146
-rw-r--r--ctrl/facemgr/src/interfaces/priority_controller/priority_controller.h45
6 files changed, 243 insertions, 44 deletions
diff --git a/ctrl/facemgr/src/api.c b/ctrl/facemgr/src/api.c
index f934883de..9e029c5b7 100644
--- a/ctrl/facemgr/src/api.c
+++ b/ctrl/facemgr/src/api.c
@@ -21,12 +21,12 @@
#ifdef __ANDROID__
/*
- * Use AndroidUtility to determine interface types
+ * Use FacemgrUtility to determine interface types
*
* NOTE: this is currently disabled as SDK APIs do not allow to determine the
* type of interfaces that are DOWN
*/
-//#define WITH_ANDROID_UTILITY
+//#define WITH_FACEMGR_UTILITY
/*
* Use priority controller interface
@@ -59,9 +59,11 @@
#include "interfaces/bonjour/bonjour.h"
#endif /* __linux__ */
-#ifdef WITH_ANDROID_UTILITY
+#ifdef WITH_FACEMGR_UTILITY
#include "interfaces/android_utility/android_utility.h"
-#endif /* WITH_ANDROID_UTILITY */
+#endif /* WITH_FACEMGR_UTILITY */
+
+#include "interfaces/priority_controller/priority_controller.h"
#include <hicn/ctrl/face.h>
#include <hicn/facemgr/facelet.h>
@@ -100,9 +102,9 @@ extern interface_ops_t network_framework_ops;
extern interface_ops_t netlink_ops;
extern interface_ops_t bonjour_ops;
#endif
-#ifdef WITH_ANDROID_UTILITY
+#ifdef WITH_FACEMGR_UTILITY
extern interface_ops_t android_utility_ops;
-#endif /* WITH_ANDROID_UTILITY */
+#endif /* WITH_FACEMGR_UTILITY */
#ifdef WITH_PRIORITY_CONTROLLER
extern interface_ops_t priority_controller_ops;
#endif
@@ -162,9 +164,9 @@ struct facemgr_s {
interface_t * hl;
-#ifdef WITH_ANDROID_UTILITY
+#ifdef WITH_FACEMGR_UTILITY
interface_t * au; /* android_utility */
-#endif /* WITH_ANDROID_UTILITY */
+#endif /* WITH_FACEMGR_UTILITY */
#ifdef WITH_PRIORITY_CONTROLLER
interface_t * pc;
@@ -538,7 +540,7 @@ int facemgr_query_bonjour(facemgr_t * facemgr, netdevice_t * netdevice)
}
#endif /* __linux__ */
-#ifdef WITH_ANDROID_UTILITY
+#ifdef WITH_FACEMGR_UTILITY
int facemgr_query_android_utility(facemgr_t * facemgr, netdevice_t netdevice)
{
/* Send an event to the interface */
@@ -564,7 +566,7 @@ ERR_ND:
ERR_MALLOC:
return -1;
}
-#endif /* WITH_ANDROID_UTILITY */
+#endif /* WITH_FACEMGR_UTILITY */
/**
@@ -640,7 +642,7 @@ facemgr_facelet_satisfy_rules(facemgr_t * facemgr, facelet_t * facelet)
}
netdevice_type_t netdevice_type = NETDEVICE_TYPE_UNDEFINED;
-#ifndef WITH_ANDROID_UTILITY
+#ifndef WITH_FACEMGR_UTILITY
/*
* In addition to netdevice, netdevice_type should be present to correctly
* apply rules
@@ -650,7 +652,7 @@ facemgr_facelet_satisfy_rules(facemgr_t * facemgr, facelet_t * facelet)
ERROR("[facemgr_facelet_satisfy_rules] Error retrieving netdevice_type from facelet");
return -2;
}
-#endif /* WITH_ANDROID_UTILITY */
+#endif /* WITH_FACEMGR_UTILITY */
/* Default ignore list */
if ((netdevice_type == NETDEVICE_TYPE_LOOPBACK) || (netdevice_type == NETDEVICE_TYPE_UNDEFINED)) {
@@ -705,7 +707,7 @@ facemgr_facelet_satisfy_rules(facemgr_t * facemgr, facelet_t * facelet)
return 0;
}
-#ifdef WITH_ANDROID_UTILITY
+#ifdef WITH_FACEMGR_UTILITY
/**
* \brief Complements facelet information through Android Utility interface
* \return 0 if request was successful, -1 in case of error, and -2 if the
@@ -741,7 +743,7 @@ facemgr_complement_facelet_au(facemgr_t * facemgr, facelet_t * facelet)
facelet_set_au_done(facelet);
return 0;
}
-#endif /* WITH_ANDROID_UTILITY */
+#endif /* WITH_FACEMGR_UTILITY */
#ifdef __linux__
/**
@@ -763,7 +765,7 @@ facemgr_complement_facelet_bj(facemgr_t * facemgr, facelet_t * facelet)
}
netdevice_type_t netdevice_type = NETDEVICE_TYPE_UNDEFINED;
-#ifndef WITH_ANDROID_UTILITY
+#ifndef WITH_FACEMGR_UTILITY
/*
* In addition to netdevice, netdevice_type should be present to correctly
* apply rules
@@ -773,7 +775,7 @@ facemgr_complement_facelet_bj(facemgr_t * facemgr, facelet_t * facelet)
ERROR("[facemgr_complement_facelet_bj] Error retrieving netdevice_type from facelet");
return -2;
}
-#endif /* WITH_ANDROID_UTILITY */
+#endif /* WITH_FACEMGR_UTILITY */
bool discovery;
if (facemgr_cfg_get_discovery(facemgr->cfg, &netdevice, netdevice_type,
@@ -835,7 +837,7 @@ facemgr_complement_facelet_manual(facemgr_t * facemgr, facelet_t * facelet)
}
netdevice_type_t netdevice_type = NETDEVICE_TYPE_UNDEFINED;
-#ifndef WITH_ANDROID_UTILITY
+#ifndef WITH_FACEMGR_UTILITY
/*
* In addition to netdevice, netdevice_type should be present to correctly
* apply rules
@@ -845,7 +847,7 @@ facemgr_complement_facelet_manual(facemgr_t * facemgr, facelet_t * facelet)
ERROR("[facemgr_complement_facelet_manual] Error retrieving netdevice_type from facelet");
return -2;
}
-#endif /* WITH_ANDROID_UTILITY */
+#endif /* WITH_FACEMGR_UTILITY */
int family = AF_UNSPEC;
if (facelet_has_family(facelet)) {
@@ -957,11 +959,11 @@ facemgr_complement_facelet(facemgr_t * facemgr, facelet_t * facelet)
if (!facelet_has_key(facelet))
return -2;
-#ifdef WITH_ANDROID_UTILITY
+#ifdef WITH_FACEMGR_UTILITY
rc = facemgr_complement_facelet_au(facemgr, facelet);
if (rc != -2)
return rc;
-#endif /* WITH_ANDROID_UTILITY */
+#endif /* WITH_FACEMGR_UTILITY */
#if 0
if (!facelet_has_netdevice_type(facelet)) {
@@ -1008,7 +1010,7 @@ int facemgr_assign_face_type(facemgr_t * facemgr, facelet_t * facelet)
}
netdevice_type_t netdevice_type = NETDEVICE_TYPE_UNDEFINED;
-#ifndef WITH_ANDROID_UTILITY
+#ifndef WITH_FACEMGR_UTILITY
/*
* In addition to netdevice, netdevice_type should be present to correctly
* apply rules
@@ -1018,7 +1020,7 @@ int facemgr_assign_face_type(facemgr_t * facemgr, facelet_t * facelet)
ERROR("[facemgr_assign_face_type] Error retrieving netdevice_type from facelet");
return -2;
}
-#endif /* WITH_ANDROID_UTILITY */
+#endif /* WITH_FACEMGR_UTILITY */
facemgr_face_type_t face_type = FACEMGR_FACE_TYPE_UNDEFINED;
if (facemgr_cfg_get_face_type(facemgr->cfg, &netdevice, netdevice_type, &face_type) < 0)
@@ -1153,9 +1155,9 @@ facemgr_process_facelet(facemgr_t * facemgr, facelet_t * facelet)
facelet_unset_admin_state(facelet);
facelet_unset_state(facelet);
facelet_unset_bj_done(facelet);
-#ifdef WITH_ANDROID_UTILITY
+#ifdef WITH_FACEMGR_UTILITY
facelet_unset_au_done(facelet);
-#endif /* WITH_ANDROID_UTILITY */
+#endif /* WITH_FACEMGR_UTILITY */
facelet_set_status(facelet, FACELET_STATUS_DELETED);
#if 0
@@ -1416,9 +1418,9 @@ facemgr_consider_static_facelet(facemgr_t * facemgr, facelet_t * facelet)
facelet_unset_state(new_facelet);
facelet_unset_bj_done(new_facelet);
facelet_clear_routes(new_facelet);
-#ifdef WITH_ANDROID_UTILITY
+#ifdef WITH_FACEMGR_UTILITY
facelet_unset_au_done(new_facelet);
-#endif /* WITH_ANDROID_UTILITY */
+#endif /* WITH_FACEMGR_UTILITY */
/* We try to apply static_facelet over facelet */
if (!facelet_match(new_facelet, static_facelet)) {
@@ -1650,9 +1652,9 @@ facemgr_process_facelet_delete(facemgr_t * facemgr, facelet_t * facelet)
facelet_unset_admin_state(facelet);
facelet_unset_state(facelet);
facelet_unset_bj_done(facelet);
-#ifdef WITH_ANDROID_UTILITY
+#ifdef WITH_FACEMGR_UTILITY
facelet_unset_au_done(facelet);
-#endif /* WITH_ANDROID_UTILITY */
+#endif /* WITH_FACEMGR_UTILITY */
facelet_unset_error(facelet);
facelet_set_status(facelet, FACELET_STATUS_DELETED);
#if 0
@@ -2188,13 +2190,13 @@ facemgr_bootstrap(facemgr_t * facemgr)
}
#endif /* __linux__ */
-#ifdef WITH_ANDROID_UTILITY
+#ifdef WITH_FACEMGR_UTILITY
rc = interface_register(&android_utility_ops);
if (rc < 0) {
ERROR("[facemgr_bootstrap] Error registering android_utility interface");
goto ERR_REGISTER;
}
-#endif /* WITH_ANDROID_UTILITY */
+#endif /* WITH_FACEMGR_UTILITY */
#ifdef WITH_PRIORITY_CONTROLLER
INFO("[facemgr_bootstrap] registering priority_controller interface");
@@ -2245,7 +2247,7 @@ facemgr_bootstrap(facemgr_t * facemgr)
}
#endif /* __linux__ */
-#ifdef WITH_ANDROID_UTILITY
+#ifdef WITH_FACEMGR_UTILITY
android_utility_cfg_t au_cfg = {
.jvm = facemgr->jvm,
};
@@ -2254,11 +2256,16 @@ facemgr_bootstrap(facemgr_t * facemgr)
ERROR("Error creating 'Android Utility' interface\n");
goto ERR_AU_CREATE;
}
-#endif /* WITH_ANDROID_UTILITY */
+#endif /* WITH_FACEMGR_UTILITY */
#ifdef WITH_PRIORITY_CONTROLLER
INFO("[facemgr_bootstrap] creating priority_controller interface");
- rc = facemgr_create_interface(facemgr, "pc", "priority_controller", NULL, &facemgr->pc);
+ priority_controller_cfg_t pc_cfg = {
+#ifdef PRIORITY_CONTROLLER_INTERNAL
+ .jvm = facemgr->jvm,
+#endif /* PRIORITY_CONTROLLER_INTERNAL */
+ };
+ rc = facemgr_create_interface(facemgr, "pc", "priority_controller", &pc_cfg, &facemgr->pc);
if (rc < 0) {
ERROR("Error creating 'Priority Controller' interface\n");
goto ERR_PC_CREATE;
@@ -2293,10 +2300,10 @@ ERR_UPDOWN_CREATE:
facemgr_delete_interface(facemgr, facemgr->dummy);
ERR_DUMMY_CREATE:
#endif
-#ifdef WITH_ANDROID_UTILITY
+#ifdef WITH_FACEMGR_UTILITY
facemgr_delete_interface(facemgr, facemgr->au);
ERR_AU_CREATE:
-#endif /* WITH_ANDROID_UTILITY */
+#endif /* WITH_FACEMGR_UTILITY */
#ifdef WITH_PRIORITY_CONTROLLER
facemgr_delete_interface(facemgr, facemgr->pc);
ERR_PC_CREATE:
@@ -2346,9 +2353,9 @@ void facemgr_stop(facemgr_t * facemgr)
}
#endif /* __linux__ */
-#ifdef WITH_ANDROID_UTILITY
+#ifdef WITH_FACEMGR_UTILITY
facemgr_delete_interface(facemgr, facemgr->au);
-#endif /* WITH_ANDROID_UTILITY */
+#endif /* WITH_FACEMGR_UTILITY */
#ifdef WITH_PRIORITY_CONTROLLER
facemgr_delete_interface(facemgr, facemgr->pc);
diff --git a/ctrl/facemgr/src/facelet.c b/ctrl/facemgr/src/facelet.c
index 0cf44d4dc..9e9f3f67f 100644
--- a/ctrl/facemgr/src/facelet.c
+++ b/ctrl/facemgr/src/facelet.c
@@ -356,8 +356,10 @@ facelet_create_from_face(face_t * face)
facelet->error = 0;
/* TODO Consistency check between face type and found attributes */
- if (facelet_validate_face(facelet) < 0)
+ if (facelet_validate_face(facelet) < 0) {
+ ERROR("[facelet_create_from_face] Cannot validate face");
goto ERR_FACE;
+ }
facelet->bj_done = false;
facelet->au_done = false;
@@ -367,7 +369,7 @@ facelet_create_from_face(face_t * face)
/* We need to get route set */
facelet->routes = route_set_create();
if (!facelet->routes) {
- ERROR("[facelet_create] Cannot create route set");
+ ERROR("[facelet_create_from_face] Cannot create route set");
goto ERR_ROUTE_SET;
}
facelet->routes_done = false;
diff --git a/ctrl/facemgr/src/interfaces/android_utility/android_utility.c b/ctrl/facemgr/src/interfaces/android_utility/android_utility.c
index d1fe324fb..d8e20659a 100644
--- a/ctrl/facemgr/src/interfaces/android_utility/android_utility.c
+++ b/ctrl/facemgr/src/interfaces/android_utility/android_utility.c
@@ -28,7 +28,7 @@
#include "android_utility.h"
-#define FACEMGR_ANDROID_UTILITY_CLASS "com/cisco/hicn/forwarder/supportlibrary/AndroidUtility"
+#define FACEMGR_UTILITY_CLASS "com/cisco/hicn/facemgrlibrary/supportlibrary/FacemgrUtility"
#define AU_INTERFACE_TYPE_UNDEFINED 0
@@ -89,7 +89,7 @@ int au_on_event(interface_t * interface, facelet_t * facelet)
JNIEnv *env;
JavaVM *jvm = data->cfg.jvm;
(*jvm)->AttachCurrentThread(jvm, &env, NULL);
- jclass cls = (*env)->FindClass(env, FACEMGR_ANDROID_UTILITY_CLASS);
+ jclass cls = (*env)->FindClass(env, FACEMGR_UTILITY_CLASS);
jmethodID getNetworkType = (*env)->GetStaticMethodID(env, cls,
"getNetworkType", "(Ljava/lang/String;)I");
jint interface_type = (*env)->CallStaticIntMethod(env, cls, getNetworkType,
diff --git a/ctrl/facemgr/src/interfaces/hicn_light/hicn_light.c b/ctrl/facemgr/src/interfaces/hicn_light/hicn_light.c
index 508c0713b..74a0cd62b 100644
--- a/ctrl/facemgr/src/interfaces/hicn_light/hicn_light.c
+++ b/ctrl/facemgr/src/interfaces/hicn_light/hicn_light.c
@@ -642,6 +642,11 @@ int hl_callback(interface_t * interface, int fd, void * unused)
/* We can ignore faces on localhost */
facelet_t * facelet = facelet_create_from_face(&f->face);
+ if (!facelet) {
+ ERROR("[hl_callback] Could not create facelet... skipping");
+ continue;
+ }
+
foreach_route(r, data->polled_routes) {
if (r->face_id != f->id)
continue;
diff --git a/ctrl/facemgr/src/interfaces/priority_controller/priority_controller.c b/ctrl/facemgr/src/interfaces/priority_controller/priority_controller.c
index 76538185f..67edc5e39 100644
--- a/ctrl/facemgr/src/interfaces/priority_controller/priority_controller.c
+++ b/ctrl/facemgr/src/interfaces/priority_controller/priority_controller.c
@@ -1,5 +1,5 @@
/*
- * Copyright (c) 2017-2019 Cisco and/or its affiliates.
+ * Copyright (c) 2017-2020 Cisco and/or its affiliates.
* 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:
@@ -27,19 +27,110 @@
#include <hicn/facemgr.h>
+#include "priority_controller.h"
#include "../../common.h"
#include "../../interface.h"
#define PC_DEFAULT_PORT 9533
typedef struct {
+ priority_controller_cfg_t cfg;
int fd;
+#ifdef PRIORITY_CONTROLLER_INTERNAL
+ unsigned state;
+ JNIEnv * env;
+ jclass cls;
+ jmethodID mid;
+#endif /* PRIORITY_CONTROLLER_INTERNAL */
} pc_data_t;
+#ifdef PRIORITY_CONTROLLER_INTERNAL
+#include <jni.h>
+
+#define ERR_STR_JAVA "Java VM parameters are required in the interface configuration."
+
+#define PREFER_CELLULAR 0
+#define PREFER_WIFI 1
+#define PREFER_BOTH 2
+
+#define INTERVAL_MS 500
+
+const char * prefer_str[] = { "Cellular", "WiFi", "both" };
+
+jclass find_class_global(JNIEnv* env, const char *name){
+ jclass c = (*env)->FindClass(env, name);
+ jclass c_global = 0;
+ if (c){
+ c_global = (jclass)(*env)->NewGlobalRef(env, c);
+ (*env)->DeleteLocalRef(env, c);
+ }
+ return c_global;
+}
+
+
+int priority_controller_tick(interface_t * interface, int fd, void * unused)
+{
+ pc_data_t * data = (pc_data_t*)interface->data;
+ unsigned new_state = PREFER_BOTH;
+
+ jint rssi = (*data->env)->CallStaticIntMethod(data->env, data->cls, data->mid);
+ DEBUG("[priority_controller_tick] rssi=%d\n", rssi);
+ if (rssi > -67) {
+ new_state = PREFER_WIFI;
+
+#if 0
+ } else if ((rssi < -67) && (rssi > -70)) {
+ new_state = PREFER_BOTH;
+#endif
+
+ } else { /* rssi < -70 */
+ new_state = PREFER_CELLULAR;
+ }
+
+ if (new_state == data->state)
+ return 0;
+
+ ERROR("[priority_controller_tick] Setting priority to %s", prefer_str[new_state]);
+
+ /* XXX Factor this */
+
+ facelet_t * facelet_w = facelet_create();
+ facelet_t * facelet_c = facelet_create();
+ facelet_set_netdevice_type(facelet_w, NETDEVICE_TYPE_WIFI);
+ facelet_set_netdevice_type(facelet_c, NETDEVICE_TYPE_CELLULAR);
+ facelet_set_attr_clean(facelet_w);
+ facelet_set_attr_clean(facelet_c);
+
+ switch(new_state) {
+ case PREFER_CELLULAR:
+ facelet_set_priority(facelet_w, 0);
+ facelet_set_priority(facelet_c, 10);
+ break;
+ case PREFER_WIFI:
+ facelet_set_priority(facelet_w, 10);
+ facelet_set_priority(facelet_c, 0);
+ break;
+ case PREFER_BOTH:
+ facelet_set_priority(facelet_w, 0);
+ facelet_set_priority(facelet_c, 0);
+ break;
+ }
+
+ facelet_set_event(facelet_w, FACELET_EVENT_UPDATE);
+ facelet_set_event(facelet_c, FACELET_EVENT_UPDATE);
+
+ interface_raise_event(interface, facelet_w);
+ interface_raise_event(interface, facelet_c);
+
+ data->state = new_state;
+
+ return 0;
+}
+#endif /* PRIORITY_CONTROLLER_INTERNAL */
+
int priority_controller_initialize(interface_t * interface, void * cfg)
{
INFO("Initializing priority controller");
- struct sockaddr_in addr;
pc_data_t * data = malloc(sizeof(pc_data_t));
if (!data) {
@@ -49,6 +140,33 @@ int priority_controller_initialize(interface_t * interface, void * cfg)
interface->data = data;
+ data->cfg = * (priority_controller_cfg_t *) cfg;
+
+#ifdef PRIORITY_CONTROLLER_INTERNAL
+
+ if (!cfg) {
+ ERROR(ERR_STR_JAVA);
+ goto ERR_CFG;
+ }
+
+ /* Retrieve RSSI information from SDK through AndroidUtility class */
+ (*data->cfg.jvm)->AttachCurrentThread(data->cfg.jvm, &data->env, NULL);
+ data->cls = find_class_global(data->env, FACEMGR_ANDROID_UTILITY_CLASS);
+ if (data->cls == 0)
+ goto ERR_JAVA;
+ data->mid = (*data->env)->GetStaticMethodID(data->env, data->cls, "getWifiRSSI", "()I");
+
+ data->fd = interface_register_timer(interface, INTERVAL_MS,
+ priority_controller_tick, interface);
+ if (data->fd < 0) {
+ ERROR("[priority_controller_initialize] Could not initialize timer");
+ goto ERR_FD;
+ }
+ data->state = PREFER_BOTH;
+
+#else /* PRIORITY_CONTROLLER_INTERNAL */
+ struct sockaddr_in addr;
+
data->fd = socket(AF_INET, SOCK_DGRAM, 0);
//data->fd = socket(AF_INET, SOCK_STREAM, 0);
if (data->fd < 0) {
@@ -67,18 +185,28 @@ int priority_controller_initialize(interface_t * interface, void * cfg)
perror("bind error");
goto ERR_BIND;
}
+
+ DEBUG("[priority_controller_initialize] register fd");
if (interface_register_fd(interface, data->fd, NULL) < 0) {
ERROR("[priority_controller_initialize] Error registering fd");
goto ERR_FD;
}
+#endif /* PRIORITY_CONTROLLER_INTERNAL */
+
INFO("Priority controller successfully initialized");
return 0;
+#ifdef PRIORITY_CONTROLLER_INTERNAL
+ERR_CFG:
+ERR_JAVA:
+#endif /* PRIORITY_CONTROLLER_INTERNAL */
ERR_FD:
+#ifndef PRIORITY_CONTROLLER_INTERNAL
ERR_BIND:
close(data->fd);
ERR_SOCKET:
+#endif /* ! PRIORITY_CONTROLLER_INTERNAL */
free(data);
ERR_MALLOC:
return -1;
@@ -88,12 +216,21 @@ int priority_controller_finalize(interface_t * interface)
{
pc_data_t * data = (pc_data_t*)interface->data;
- if (data->fd > 0) {close(data->fd);}
+#ifdef PRIORITY_CONTROLLER_INTERNAL
+ DEBUG("[priority_controller_finalize] unregister timer");
+ interface_unregister_timer(interface, data->fd);
+#else
+ if (data->fd > 0) {
+ interface_unregister_fd(interface, data->fd);
+ close(data->fd);
+ }
free(data);
+#endif /* PRIORITY_CONTROLLER_INTERNAL */
return 0;
}
+#ifndef PRIORITY_CONTROLLER_INTERNAL
int priority_controller_callback(interface_t * interface, int fd, void * unused)
{
pc_data_t * data = (pc_data_t*)interface->data;
@@ -148,10 +285,13 @@ int priority_controller_callback(interface_t * interface, int fd, void * unused)
return 0;
}
+#endif /* ! PRIORITY_CONTROLLER_INTERNAL */
interface_ops_t priority_controller_ops = {
.type = "priority_controller",
.initialize = priority_controller_initialize,
.finalize = priority_controller_finalize,
+#ifndef PRIORITY_CONTROLLER_INTERNAL
.callback = priority_controller_callback,
+#endif /* ! PRIORITY_CONTROLLER_INTERNAL */
};
diff --git a/ctrl/facemgr/src/interfaces/priority_controller/priority_controller.h b/ctrl/facemgr/src/interfaces/priority_controller/priority_controller.h
new file mode 100644
index 000000000..247fc3c57
--- /dev/null
+++ b/ctrl/facemgr/src/interfaces/priority_controller/priority_controller.h
@@ -0,0 +1,45 @@
+/*
+ * Copyright (c) 2017-2020 Cisco and/or its affiliates.
+ * 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.
+ */
+
+/**
+ * \file priority_controller.h
+ * \brief Priority Controller interface
+ */
+
+#ifndef FACEMGR_INTERFACE_PRIORITY_CONTROLLER
+#define FACEMGR_INTERFACE_PRIORITY_CONTROLLER
+
+#define FACEMGR_UTILITY_CLASS "com/cisco/hicn/facemgrlibrary/supportlibrary/FacemgrUtility"
+
+/*
+ * Uncomment this line to use a Priority controller interface internal to the
+ * face manager (only available in Android).
+ */
+// #define PRIORITY_CONTROLLER_INTERNAL
+
+#ifdef __ANDROID__
+#include <jni.h>
+#endif /* __ANDROID__ */
+
+typedef struct {
+#ifdef __ANDROID__
+#ifdef PRIORITY_CONTROLLER_INTERNAL
+ JavaVM * jvm;
+#endif /* PRIORITY_CONTROLLER_INTERNAL */
+#endif /* __ANDROID__ */
+} priority_controller_cfg_t;
+
+
+#endif /* FACEMGR_INTERFACE_PRIORITY_CONTROLLER */