mirror of
https://dev.iopsys.eu/bbf/stunc.git
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109 lines
2.4 KiB
C
109 lines
2.4 KiB
C
/*
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* ubus.c -- This file conatains functions that allow to make ubus calls
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*
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*
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* Copyright (C) 2020 iopsys Software Solutions AB. All rights reserved.
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*
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* Author: Omar Kallel <omar.kallel@pivasoftware.com>
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* version 2 as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
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* 02110-1301 USA
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*
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*/
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#include <strings.h>
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#include <string.h>
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#include <stdlib.h>
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#include <stdarg.h>
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#include <errno.h>
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#include <unistd.h>
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#include <json-c/json.h>
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#include <libubox/blobmsg_json.h>
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#include <libubus.h>
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#include "ubus.h"
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static struct ubus_context *ubus_ctx = NULL;
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static struct blob_buf b;
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int subus_init(void)
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{
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ubus_ctx = ubus_connect(NULL);
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if (!ubus_ctx) {
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return -1;
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}
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return 0;
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}
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int subus_fini(void)
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{
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if (ubus_ctx) {
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ubus_free(ubus_ctx);
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}
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ubus_ctx = NULL;
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return 0;
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}
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void sadd_json_obj(json_object *json_obj_out, char *object, char *string)
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{
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json_object *json_obj_tmp = json_object_new_string(string);
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json_object_object_add(json_obj_out, object, json_obj_tmp);
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}
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static int subus_call_req(char *path, char *method, int argc, struct sarg sarg[])
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{
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uint32_t id;
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int i, r = 1;
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char *arg;
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json_object *json_obj_out = json_object_new_object();
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if (json_obj_out == NULL)
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return r;
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blob_buf_init(&b, 0);
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if (argc) {
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for (i = 0; i < argc; i++) {
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sadd_json_obj(json_obj_out, sarg[i].key, sarg[i].val);
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}
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arg = (char *)json_object_to_json_string(json_obj_out);
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if (!blobmsg_add_json_from_string(&b, arg)) {
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goto end;
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}
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}
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if (ubus_lookup_id(ubus_ctx, path, &id))
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goto end;
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r = ubus_invoke(ubus_ctx, id, method, b.head, NULL, NULL, 1);
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end:
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json_object_put(json_obj_out);
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blob_buf_free(&b);
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return r;
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}
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int subus_call(char *path, char *method, int argc, struct sarg dmarg[])
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{
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int r = -1;
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subus_init();
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if (ubus_ctx) {
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r = subus_call_req(path, method, argc, dmarg);
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if (r > 0) r = -1;
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}
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subus_fini();
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return r;
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}
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