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.
23 #include <afb/afb-auth.h>
26 #include "afb-context.h"
31 int afb_auth_check(struct afb_xreq *xreq, const struct afb_auth *auth)
39 return afb_context_check(&xreq->context);
42 return afb_context_check_loa(&xreq->context, auth->loa);
44 case afb_auth_Permission:
45 return afb_auth_has_permission(xreq, auth->text);
48 return afb_auth_check(xreq, auth->first) || afb_auth_check(xreq, auth->next);
51 return afb_auth_check(xreq, auth->first) && afb_auth_check(xreq, auth->next);
54 return !afb_auth_check(xreq, auth->first);
61 /*********************************************************************************/
62 #ifdef BACKEND_PERMISSION_IS_CYNARA
65 #include <cynara-client.h>
67 static cynara *handle;
68 static pthread_mutex_t mutex = PTHREAD_MUTEX_INITIALIZER;
70 int afb_auth_has_permission(struct afb_xreq *xreq, const char *permission)
75 /* case of permission for self */
79 ERROR("Got a null permission!");
83 /* cynara isn't reentrant */
84 pthread_mutex_lock(&mutex);
86 /* lazy initialisation */
88 rc = cynara_initialize(&handle, NULL);
89 if (rc != CYNARA_API_SUCCESS) {
91 ERROR("cynara initialisation failed with code %d", rc);
96 /* query cynara permission */
97 rc = cynara_check(handle, xreq->cred->label, afb_context_uuid(&xreq->context), xreq->cred->user, permission);
99 pthread_mutex_unlock(&mutex);
100 return rc == CYNARA_API_ACCESS_ALLOWED;
103 /*********************************************************************************/
105 int afb_auth_has_permission(struct afb_xreq *xreq, const char *permission)
107 WARNING("Granting permission %s by default of backend", permission ?: "(null)");