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/*
* PASS (Power Aware System Service) - Network Resource Driver
*
* Copyright (c) 2022 Samsung Electronics Co., Ltd.
*
* 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 resource-network.c
* @brief Provide network resource driver supporting the various resource
* attributes. It supports the network attributes such as network
* bandwidth and so on.
* @ingroup RESOURCE_MONITOR
*/
#include <glib.h>
#include <util/common.h>
#include <util/devices.h>
#include <util/log.h>
#include <libsyscommon/resource-manager.h>
#include <libsyscommon/resource-type.h>
#include <libsyscommon/resource-device.h>
#include <resource-monitor/resource-monitor.h>
struct network_context {
char *device_name;
int index;
};
static int network_get_name(int resource_id,
const struct syscommon_resman_resource_attribute *attr,
void *data)
{
struct network_context *ctx;
char *buf = (char *)data;
if (resource_id < 0 || !attr || !data)
return -EINVAL;
ctx = syscommon_resman_get_resource_privdata(resource_id);
if (!ctx)
return -EINVAL;
if (!ctx->device_name) {
_E("%s: NETWORK_CTRL_DEVICE_ID is not yet initialized\n",
syscommon_resman_get_resource_name(resource_id));
return -EINVAL;
}
strncpy(buf, ctx->device_name, BUFF_MAX);
return 0;
}
static const struct syscommon_resman_resource_attribute network_attrs[] = {
{
.name = "NETWORK_ATTR_NAME",
.id = NETWORK_ATTR_NAME,
.type = SYSCOMMON_RESMAN_DATA_TYPE_STRING,
.flag = SYSCOMMON_RESMAN_RESOURCE_ATTR_FLAG_PRIVATE,
.ops = {
.get = network_get_name,
},
},
};
static int network_setup_device_id(int resource_id,
const struct syscommon_resman_resource_control *ctrl,
const void *data)
{
struct network_context *ctx;
const struct syscommon_resman_resource_device *device;
int resource_index = (int)(intptr_t)data;
if (resource_id < 0 || !ctrl)
return -EINVAL;
ctx = syscommon_resman_get_resource_privdata(resource_id);
if (!ctx)
return -EINVAL;
device = syscommon_resman_find_resource_device(syscommon_resman_get_resource_type(resource_id), resource_index);
if (!device) {
_E("Not available resource: type: %s, index: %d\n",
syscommon_resman_get_resource_name(resource_id), resource_index);
return -EINVAL;
}
if (ctx->device_name)
free(ctx->device_name);
ctx->device_name = g_strdup(device->name);
ctx->index = resource_index;
return 0;
}
static const struct syscommon_resman_resource_control network_ctrls[] = {
{
.name = "NETWORK_CTRL_DEVICE_ID",
.id = NETWORK_CTRL_DEVICE_ID,
.ops = {
.set = network_setup_device_id,
},
},
};
static int network_create(int resource_id)
{
struct network_context *ctx;
ctx = calloc(1, sizeof(struct network_context));
if (!ctx)
return -ENOMEM;
ctx->index = -1;
syscommon_resman_set_resource_privdata(resource_id, ctx);
return 0;
}
static void network_delete(int resource_id)
{
struct network_context *ctx;
if (resource_id < 0)
return;
ctx = syscommon_resman_get_resource_privdata(resource_id);
if (!ctx)
return;
if (ctx->device_name)
free(ctx->device_name);
free(ctx);
syscommon_resman_set_resource_privdata(resource_id, NULL);
}
static const struct syscommon_resman_resource_driver network_resource_driver = {
.name = "NETWORK",
.type = RESOURCE_TYPE_NETWORK,
.attrs = network_attrs,
.num_attrs = ARRAY_SIZE(network_attrs),
.ctrls = network_ctrls,
.num_ctrls = ARRAY_SIZE(network_ctrls),
.ops = {
.create = network_create,
.delete = network_delete,
},
};
SYSCOMMON_RESMAN_RESOURCE_DRIVER_REGISTER(&network_resource_driver)
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