2 * Copyright (C) 2016, 2017 "IoT.bzh"
3 * Author "Fulup Ar Foll"
4 * Author José Bollo <jose.bollo@iot.bzh>
6 * Licensed under the Apache License, Version 2.0 (the "License");
7 * you may not use this file except in compliance with the License.
8 * You may obtain a copy of the License at
10 * http://www.apache.org/licenses/LICENSE-2.0
12 * Unless required by applicable law or agreed to in writing, software
13 * distributed under the License is distributed on an "AS IS" BASIS,
14 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
15 * See the License for the specific language governing permissions and
16 * limitations under the License.
20 #define AFB_BINDING_PRAGMA_NO_VERBOSE_MACRO
24 #include <afb/afb-auth.h>
27 #include "afb-context.h"
32 static int check_permission(const char *permission, struct afb_xreq *xreq);
34 int afb_auth_check(const struct afb_auth *auth, struct afb_xreq *xreq)
42 return afb_context_check(&xreq->context);
45 return afb_context_check_loa(&xreq->context, auth->loa);
47 case afb_auth_Permission:
48 return xreq->cred && auth->text && check_permission(auth->text, xreq);
51 return afb_auth_check(auth->first, xreq) || afb_auth_check(auth->next, xreq);
54 return afb_auth_check(auth->first, xreq) && afb_auth_check(auth->next, xreq);
57 return !afb_auth_check(auth->first, xreq);
64 /*********************************************************************************/
65 #ifdef BACKEND_PERMISSION_IS_CYNARA
68 #include <cynara-client.h>
70 static cynara *handle;
71 static pthread_mutex_t mutex = PTHREAD_MUTEX_INITIALIZER;
73 static int check_permission(const char *permission, struct afb_xreq *xreq)
77 /* cynara isn't reentrant */
78 pthread_mutex_lock(&mutex);
80 /* lazy initialisation */
82 rc = cynara_initialize(&handle, NULL);
83 if (rc != CYNARA_API_SUCCESS) {
85 ERROR("cynara initialisation failed with code %d", rc);
90 /* query cynara permission */
91 rc = cynara_check(handle, xreq->cred->label, afb_context_uuid(&xreq->context), xreq->cred->user, permission);
93 pthread_mutex_unlock(&mutex);
94 return rc == CYNARA_API_ACCESS_ALLOWED;
97 /*********************************************************************************/
99 static int check_permission(const char *permission, struct afb_xreq *xreq)
101 WARNING("Granting permission %s by default of backend", permission);