From: Hans Dedecker <dedeckeh@gmail.com>
Date: Mon, 23 Apr 2018 11:32:19 +0000 (+0200)
Subject: dhcpv6-ia: keep tentative assignments alive for a short time
X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=413652910234f44e11d6550abf6871621474b8cb;p=project%2Fodhcpd.git

dhcpv6-ia: keep tentative assignments alive for a short time

Assign tentative assignments a lifetime of 60 seconds; this will assure
the assignment is seen as valid during lookup when receiving a later
REQUEST from the DHCPv6 client.

Signed-off-by: Hans Dedecker <dedeckeh@gmail.com>
---

diff --git a/src/dhcpv6-ia.c b/src/dhcpv6-ia.c
index 737b328..e94dc38 100644
--- a/src/dhcpv6-ia.c
+++ b/src/dhcpv6-ia.c
@@ -1261,7 +1261,8 @@ ssize_t dhcpv6_handle_ia(uint8_t *buf, size_t buflen, struct interface *iface,
 				a->flags |= OAF_TENTATIVE;
 
 				if (!(a->flags & OAF_STATIC))
-					a->valid_until = now;
+					/* Keep tentative assignment around for 60 seconds */
+					a->valid_until = now + 60;
 			} else if (assigned &&
 					(hdr->msg_type == DHCPV6_MSG_REQUEST ||
 					 hdr->msg_type == DHCPV6_MSG_REBIND)) {