From 536fbcd6f4b7aa35a689581372d70b4399ce5707 Mon Sep 17 00:00:00 2001
From: Linus Nordberg <linus@nordberg.se>
Date: Mon, 26 Aug 2013 14:25:51 +0200
Subject: Purge the duplication cache once per received packet.

---
 radsecproxy.c | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

diff --git a/radsecproxy.c b/radsecproxy.c
index d05f9c9..3e4f360 100644
--- a/radsecproxy.c
+++ b/radsecproxy.c
@@ -1390,6 +1390,22 @@ struct request *newrequest() {
     return rq;
 }
 
+static void
+purgedupcache(struct client *client) {
+    struct request *r;
+    struct timeval now;
+    int i;
+
+    gettimeofday(&now, NULL);
+    for (i = 0; i < MAX_REQUESTS; i++) {
+	r = client->rqs[i];
+	if (r && now.tv_sec - r->created.tv_sec > r->from->conf->dupinterval) {
+	    freerq(r);
+	    client->rqs[i] = NULL;
+	}
+    }
+}
+
 int addclientrq(struct request *rq) {
     struct request *r;
     struct timeval now;
@@ -1453,6 +1469,7 @@ int radsrv(struct request *rq) {
 	goto exit;
     }
 
+    purgedupcache(from);
     if (!addclientrq(rq))
 	goto exit;
 
-- 
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