auth: Log reason for skipping passdb

diff --git a/src/auth/auth-request.c b/src/auth/auth-request.c
index 8e92ff2146c6c383037fd8c8abb75422553678fe..5f6e93be998e088a70c0f781d62ad6af936b232a 100644 (file)
--- a/src/auth/auth-request.c
+++ b/src/auth/auth-request.c
@@ -673,12 +673,18 @@ auth_request_want_skip_passdb(struct auth_request *request,
 
        username = request->user;
 
-       if (!auth_request_mechanism_accepted(mechs, request->mech))
+       if (!auth_request_mechanism_accepted(mechs, request->mech)) {
+               auth_request_log_debug(request, AUTH_SUBSYS_MECH,
+                                      "skipping passdb: mechanism filtered");
                return TRUE;
+       }
 
        if (passdb->passdb->username_filter != NULL &&
-           !auth_request_username_accepted(username_filter, username))
+           !auth_request_username_accepted(username_filter, username)) {
+               auth_request_log_debug(request, AUTH_SUBSYS_MECH,
+                                      "skipping passdb: username filtered");
                return TRUE;
+       }
 
        /* skip_password_check basically specifies if authentication is
           finished */