From: Michael Brown <mcb30@ipxe.org>
Date: Fri, 24 Sep 2010 03:45:29 +0000 (+0100)
Subject: [dhcp] Ignore DHCPACKs containing incorrect IP addresses
X-Git-Tag: v1.20.1~2475
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=ba6aca342468811a40afb98aa1ba2ac9b36aa3b4;p=thirdparty%2Fipxe.git

[dhcp] Ignore DHCPACKs containing incorrect IP addresses

Signed-off-by: Michael Brown <mcb30@ipxe.org>
---

diff --git a/src/net/udp/dhcp.c b/src/net/udp/dhcp.c
index 0483e2f60..6435bf2ee 100644
--- a/src/net/udp/dhcp.c
+++ b/src/net/udp/dhcp.c
@@ -528,6 +528,8 @@ static void dhcp_request_rx ( struct dhcp_session *dhcp,
 		return;
 	if ( server_id.s_addr != dhcp->server.s_addr )
 		return;
+	if ( ip.s_addr != dhcp->offer.s_addr )
+		return;
 
 	/* Record assigned address */
 	dhcp->local.sin_addr = ip;