[HICN-408] add a face manager interface for face priority control

Change-Id: I166cb56e7376fe896d41d6d371ecb3727b7563ce
Signed-off-by: Junsu Choi <junsu.choi@samsung.com>

4 files changed, 198 insertions, 1 deletions

diff --git a/ctrl/facemgr/src/api.c b/ctrl/facemgr/src/api.c
index 13b811288..01b6e52f3 100644
--- a/ctrl/facemgr/src/api.c
+++ b/ctrl/facemgr/src/api.c
@@ -20,6 +20,7 @@
 
 #ifdef __ANDROID__
 //#define WITH_ANDROID_UTILITY
+#define WITH_PRIORITY_CONTROLLER
 #endif /* __ANDROID__ */
 
 #include <assert.h>
@@ -85,6 +86,9 @@ extern interface_ops_t bonjour_ops;
 #ifdef WITH_ANDROID_UTILITY
 extern interface_ops_t android_utility_ops;
 #endif /* WITH_ANDROID_UTILITY */
+#ifdef WITH_PRIORITY_CONTROLLER
+extern interface_ops_t priority_controller_ops;
+#endif
 #ifdef WITH_EXAMPLE_DUMMY
 extern interface_ops_t dummy_ops;
 #endif
@@ -139,13 +143,16 @@ struct facemgr_s {
     interface_t * au; /* android_utility */
 #endif /* WITH_ANDROID_UTILITY */
 
+#ifdef WITH_PRIORITY_CONTROLLER
+    interface_t * pc;
+#endif
+
 #ifdef __APPLE__
     interface_t * nf; /* network_framework */
 #endif /* __APPLE__ */
 
 #ifdef __linux__
     interface_t * nl; /* netlink */
-
     /*
      * We maintain a map of dynamically created bonjour interfaces, one for each
      * found netdevice
@@ -1865,6 +1872,15 @@ facemgr_bootstrap(facemgr_t * facemgr)
     }
 #endif /* WITH_ANDROID_UTILITY */
 
+#ifdef WITH_PRIORITY_CONTROLLER
+    INFO("[facemgr_bootstrap] registering priority_controller interface");
+    rc = interface_register(&priority_controller_ops);
+    if (rc < 0) {
+        ERROR("[facemgr_bootstrap] Error registering priority_controller interface");
+        goto ERR_REGISTER;
+    }
+#endif
+
 #ifdef WITH_EXAMPLE_DUMMY
     rc = interface_register(&dummy_ops);
     if (rc < 0) {
@@ -1916,6 +1932,15 @@ facemgr_bootstrap(facemgr_t * facemgr)
     }
 #endif /* WITH_ANDROID_UTILITY */
 
+#ifdef WITH_PRIORITY_CONTROLLER
+    INFO("[facemgr_bootstrap] creating priority_controller interface");
+    rc = facemgr_create_interface(facemgr, "pc", "priority_controller", NULL, &facemgr->pc);
+    if (rc < 0) {
+        ERROR("Error creating 'Priority Controller' interface\n");
+        goto ERR_PC_CREATE;
+    }
+#endif
+
 #ifdef WITH_EXAMPLE_DUMMY
     rc = facemgr_create_interface(facemgr, "dummy0", "dummy", NULL, &facemgr->dummy);
     if (rc < 0) {
@@ -1948,6 +1973,10 @@ ERR_DUMMY_CREATE:
     facemgr_delete_interface(facemgr, facemgr->au);
 ERR_AU_CREATE:
 #endif /* WITH_ANDROID_UTILITY */
+#ifdef WITH_PRIORITY_CONTROLLER
+    facemgr_delete_interface(facemgr, facemgr->pc);
+ERR_PC_CREATE:
+#endif
 #ifdef __linux__
     facemgr_delete_interface(facemgr, facemgr->nl);
 ERR_NL_CREATE:
@@ -1997,6 +2026,10 @@ void facemgr_stop(facemgr_t * facemgr)
     facemgr_delete_interface(facemgr, facemgr->au);
 #endif /* WITH_ANDROID_UTILITY */
 
+#ifdef WITH_PRIORITY_CONTROLLER
+    facemgr_delete_interface(facemgr, facemgr->pc);
+#endif
+
     facemgr_delete_interface(facemgr, facemgr->hl);
 
 #ifdef WITH_EXAMPLE_DUMMY
@@ -2103,3 +2136,4 @@ ERR:
     free(facelet_array);
     return rc;
 }
+
diff --git a/ctrl/facemgr/src/interfaces/CMakeLists.txt b/ctrl/facemgr/src/interfaces/CMakeLists.txt
index 8d079612a..e4d4423e9 100644
--- a/ctrl/facemgr/src/interfaces/CMakeLists.txt
+++ b/ctrl/facemgr/src/interfaces/CMakeLists.txt
@@ -29,6 +29,7 @@ endif()
 
 if(ANDROID)
 add_subdirectory(android_utility)
+add_subdirectory(priority_controller)
 endif()
 
 if(WITH_EXAMPLE_DUMMY)
diff --git a/ctrl/facemgr/src/interfaces/priority_controller/CMakeLists.txt b/ctrl/facemgr/src/interfaces/priority_controller/CMakeLists.txt
new file mode 100644
index 000000000..8d18800db
--- /dev/null
+++ b/ctrl/facemgr/src/interfaces/priority_controller/CMakeLists.txt
@@ -0,0 +1,30 @@
+# Copyright (c) 2017-2019 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.
+
+list(APPEND HEADER_FILES
+)
+
+list(APPEND SOURCE_FILES
+    ${CMAKE_CURRENT_SOURCE_DIR}/priority_controller.c
+)
+
+list(APPEND INCLUDE_DIRS
+)
+
+list(APPEND LIBRARIES
+)
+
+set(SOURCE_FILES ${SOURCE_FILES} PARENT_SCOPE)
+set(HEADER_FILES ${HEADER_FILES} PARENT_SCOPE)
+set(INCLUDE_DIRS ${INCLUDE_DIRS} PARENT_SCOPE)
+set(LIBRARIES    ${LIBRARIES}    PARENT_SCOPE)
diff --git a/ctrl/facemgr/src/interfaces/priority_controller/priority_controller.c b/ctrl/facemgr/src/interfaces/priority_controller/priority_controller.c
new file mode 100644
index 000000000..5c5afdb6c
--- /dev/null
+++ b/ctrl/facemgr/src/interfaces/priority_controller/priority_controller.c
@@ -0,0 +1,132 @@
+#include <assert.h>
+#include <sys/socket.h>
+#include <sys/un.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+
+#include <hicn/facemgr.h>
+
+#include "../../common.h"
+#include "../../interface.h"
+
+typedef struct {
+    int fd;
+} pc_data_t;
+
+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) {
+        INFO("Priority controller data memory allocation error");
+        return -1;
+    }
+
+    interface->data = data;
+
+    data->fd = socket(AF_INET, SOCK_DGRAM, 0);
+    //data->fd = socket(AF_INET, SOCK_STREAM, 0);
+    if (data->fd < 0) {
+        INFO("Priority controller socket error");
+        perror("socket error");
+        return -1;
+    }
+
+    memset(&addr, 0, sizeof(addr));
+    addr.sin_family = AF_INET;
+    addr.sin_addr.s_addr = inet_addr("127.0.0.1");
+    addr.sin_port = htons(9533);
+
+    if (bind(data->fd, (struct sockaddr*)&addr, sizeof(addr)) < 0) {
+        INFO("Priority controller socket bind error");
+        perror("bind error");
+        return -1;
+    }
+    interface_register_fd(interface, data->fd, NULL);
+
+    INFO("Priority controller successfully initialized");
+    return data->fd;
+}
+
+int priority_controller_finalize(interface_t * interface)
+{
+    pc_data_t * data = (pc_data_t*)interface->data;
+
+    if (data->fd > 0) {close(data->fd);}
+    free(data);
+
+    return 0;
+}
+
+int priority_controller_callback(interface_t * interface, int fd, void * unused)
+{
+    pc_data_t * data = (pc_data_t*)interface->data;
+    char buf[100];
+    int rc;
+
+    struct sockaddr_in addr;
+    memset(&addr, 0, sizeof(addr));
+    addr.sin_family = AF_INET;
+    addr.sin_addr.s_addr = inet_addr("127.0.0.1");
+    addr.sin_port = htons(9533);
+
+    INFO("Priority controller receiving command");
+
+    rc = recv(data->fd, buf, 100, 0);
+
+    if (rc < 0) {
+        INFO("Priority controller read error");
+        return -1;
+    }
+
+    INFO("Priority controller received command: %02X", buf[0]);
+
+    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_status(facelet_w, FACELET_STATUS_CLEAN);
+    facelet_set_status(facelet_c, FACELET_STATUS_CLEAN);
+    switch(buf[0]) {
+        case '\0':
+            facelet_set_priority(facelet_w, 0);
+            facelet_set_priority(facelet_c, 10);
+            INFO("Priority controller configuring Cellular preferred");
+            break;
+        case '\1':
+            facelet_set_priority(facelet_w, 10);
+            facelet_set_priority(facelet_c, 0);
+            INFO("Priority controller configuring Wi-Fi preferred");
+            break;
+        case '\2':
+            facelet_set_priority(facelet_w, 0);
+            facelet_set_priority(facelet_c, 0);
+            INFO("Priority controller configuring both Cellular and Wi-Fi preferred");
+            break;
+        default:
+            INFO("Priority cntroller invalid data received from updown server. Ignoring...");
+            facelet_free(facelet_w);
+            facelet_free(facelet_c);
+            return -1;
+    }
+
+    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);
+
+    facelet_free(facelet_w);
+    facelet_free(facelet_c);
+    return 0;
+}
+
+interface_ops_t priority_controller_ops = {
+    .type = "priority_controller",
+    .initialize = priority_controller_initialize,
+    .finalize = priority_controller_finalize,
+    .callback = priority_controller_callback,
+};