Acct-Delay-Time missing with RADIUS accounting

[Jouni Malinen]

On Mon, Feb 22, 2016 at 09:40:10PM +0000, Nick Lowe wrote:
> I am not convinced that an Acct-Delay-Time attribute value should be
> anything other than 0 where the contents of the Interim-Update are
> refreshed to current information.

We can do following for interim updates. Need to think a bit more about
Acct-Delay-Time in other accounting messages (with the need to update
Identifier and Request Authenticator).


[PATCH] RADIUS: Add Acct-Delay-Time 0 to interim accounting updates

Since these messages do not use RADIUS client retransmission mechanism
anymore, we can indicate zero Acct-Delay-Time to the server.

Signed-off-by: Jouni Malinen <j at w1.fi>
---
 src/ap/accounting.c | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/src/ap/accounting.c b/src/ap/accounting.c
index 010ba05..b400938 100644
--- a/src/ap/accounting.c
+++ b/src/ap/accounting.c
@@ -332,6 +332,20 @@ static void accounting_sta_report(struct hostapd_data *hapd,
 		}
 	}
 
+	if (!stop) {
+		/*
+		 * Since we do not retry the same message again for interim
+		 * updates, indicate that this specific message has no delay in
+		 * transmission attempts.
+		 */
+		if (!radius_msg_add_attr_int32(msg,
+					       RADIUS_ATTR_ACCT_DELAY_TIME,
+					       0)) {
+			wpa_printf(MSG_INFO, "Could not add Acct-Delay-Time");
+			goto fail;
+		}
+	}
+
 	if (eloop_terminated())
 		cause = RADIUS_ACCT_TERMINATE_CAUSE_ADMIN_REBOOT;
 
-- 
1.9.1


-- 
Jouni Malinen                                            PGP id EFC895FA