From: Roy Marples <roy@marples.name>
Date: Tue, 5 Nov 2019 21:54:32 +0000 (+0000)
Subject: DHCP: When rebinding ensure we have a DHCP ARP state
X-Git-Tag: v8.1.2~14
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=b06683d56a3f816b30d328b0b0f31cfd1b75e956;p=thirdparty%2Fdhcpcd.git

DHCP: When rebinding ensure we have a DHCP ARP state

So we can defend the address.
---

diff --git a/src/dhcp.c b/src/dhcp.c
index 7e590df9..e3f7aecd 100644
--- a/src/dhcp.c
+++ b/src/dhcp.c
@@ -2608,6 +2608,11 @@ dhcp_reboot(struct interface *ifp)
 	    ifp->name, inet_ntoa(state->lease.addr));
 
 #ifdef ARP
+#ifndef KERNEL_RFC5227
+	/* Create the DHCP ARP state so we can defend it. */
+	(void)dhcp_arp_new(ifp, &state->lease.addr);
+#endif
+
 	/* If the address exists on the interface and no other interface
 	 * is currently using it then announce it to ensure this
 	 * interface gets the reply. */