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/*
* Copyright 2018-2019 Amazon.com, Inc. or its affiliates. All Rights Reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License").
* You may not use this file except in compliance with the License.
* A copy of the License is located at
*
* http://aws.amazon.com/apache2.0/
*
* or in the "license" file accompanying this file. This file 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.
*/
#define _GNU_SOURCE
#include "vshl-capabilities-binding.h"
// Config Section definition (note: controls section index should match handle
// retrieval in HalConfigExec)
static CtlSectionT ctrlSections[] = {{.key = "plugins", .loadCB = PluginConfig},
{.key = "controls", .loadCB = ControlConfig},
{.key = NULL}};
static afb_verb_t ctrlApiVerbs[] = {
{.verb = NULL} /* marker for end of the array */
};
static int ctrlLoadStaticVerbs(afb_api_t apiHandle, afb_verb_t* verbs) {
int errcount = 0;
for (int idx = 0; verbs[idx].verb; idx++) {
errcount += afb_api_add_verb(
apiHandle,
ctrlApiVerbs[idx].verb,
NULL,
ctrlApiVerbs[idx].callback,
(void*)&ctrlApiVerbs[idx],
ctrlApiVerbs[idx].auth,
0,
!!strchr(ctrlApiVerbs[idx].verb, '*'));
}
return errcount;
};
// next generation dynamic API-V3 mode
#include <signal.h>
static int CtrlInitOneApi(afb_api_t apiHandle)
{
CtlConfigT *ctrlConfig;
if(!apiHandle)
return -1;
// Retrieve section config from api handle
ctrlConfig = (CtlConfigT *) afb_api_get_userdata(apiHandle);
if(!ctrlConfig)
return -2;
return CtlConfigExec(apiHandle, ctrlConfig);
}
static int ctrlLoadOneApi(void* cbdata, afb_api_t apiHandle) {
CtlConfigT* ctrlConfig = (CtlConfigT*)cbdata;
// save closure as api's data context
afb_api_set_userdata(apiHandle, ctrlConfig);
// add static controls verbs
int err = ctrlLoadStaticVerbs(apiHandle, ctrlApiVerbs);
if (err) {
AFB_API_ERROR(apiHandle, "ctrlLoadStaticVerbs fail to register static V2 verbs");
return ERROR;
}
// load section for corresponding API
err = CtlLoadSections(apiHandle, ctrlConfig, ctrlSections);
if (err) {
AFB_API_ERROR(apiHandle, "CtlLoadSections fail to load the sections");
return ERROR;
}
// declare an event event manager for this API;
afb_api_on_event(apiHandle, CtrlDispatchApiEvent);
// init API function (does not receive user closure ???
afb_api_on_init(apiHandle, CtrlInitOneApi);
afb_api_seal(apiHandle);
return err;
}
int afbBindingEntry(afb_api_t apiHandle) {
AFB_API_NOTICE(apiHandle, "Controller in afbBindingEntry");
const char* dirList = getenv("CONTROL_CONFIG_PATH");
if (!dirList) dirList = CONTROL_CONFIG_PATH;
const char* configPath = CtlConfigSearch(apiHandle, dirList, "");
if (!configPath) {
AFB_API_ERROR(apiHandle, "CtlPreInit: No %s* config found in %s ", GetBinderName(), dirList);
return ERROR;
}
// load config file and create API
CtlConfigT* ctrlConfig = CtlLoadMetaData(apiHandle, configPath);
if (!ctrlConfig) {
AFB_API_ERROR(apiHandle, "CtrlBindingDyn No valid control config file in:\n-- %s", configPath);
return ERROR;
}
if (!ctrlConfig->api) {
AFB_API_ERROR(apiHandle, "CtrlBindingDyn API Missing from metadata in:\n-- %s", configPath);
return ERROR;
}
AFB_API_NOTICE(apiHandle, "Controller API='%s' info='%s'", ctrlConfig->api, ctrlConfig->info);
// create one API per config file
afb_api_t newApi = afb_api_new_api(apiHandle, ctrlConfig->api, ctrlConfig->info, 1, ctrlLoadOneApi, ctrlConfig);
return newApi != NULL ? 0 : -1;
}
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