Implement afb_req_has_permission

This new verb is available in bindings to check
whether the client identified by a request has
a given permission or not.

Change-Id: I5eaa0892d8260d26bd76f37123251c103c981e10
Signed-off-by: José Bollo <jose.bollo@iot.bzh>

1 files changed, 14 insertions, 0 deletions

diff --git a/docs/afb-binding-references.md b/docs/afb-binding-references.md
index d0a9a6d0..e340d6b5 100644
--- a/docs/afb-binding-references.md
+++ b/docs/afb-binding-references.md
@@ -677,6 +677,20 @@ Instead, you should use the macros:
 void afb_req_verbose(struct afb_req req, int level, const char *file, int line, const char * func, const char *fmt, ...);
 ```
 
+The function below allows a binding to check whether a client
+has a permission of not.
+
+```C
+
+/*
+ * Check whether the 'permission' is granted or not to the client
+ * identified by 'req'.
+ *
+ * Returns 1 if the permission is granted or 0 otherwise.
+ */
+int afb_req_has_permission(struct afb_req req, const char *permission);
+```
+
 ## Logging macros
 
 The following macros must be used for logging: