From 04cb3f44b439b3ffec96eb4fd8a1c482f300c58b Mon Sep 17 00:00:00 2001
From: bluhm <bluhm@openbsd.org>
Date: Fri, 23 Apr 2021 21:47:32 +0000
Subject: [PATCH] The variable la_hold_total contains the number of packets
 currently in the arp queue.  So the sysctl net.inet.ip.arpqueued must be read
 only.  In if_ether.c include the header with the declaration of la_hold_total
 to ensure that the definition matches. OK mvs@

---
 sys/netinet/if_ether.c | 3 ++-
 sys/netinet/ip_input.c | 5 +++--
 2 files changed, 5 insertions(+), 3 deletions(-)

diff --git a/sys/netinet/if_ether.c b/sys/netinet/if_ether.c
index fceeffc3e10..710f7d58492 100644
--- a/sys/netinet/if_ether.c
+++ b/sys/netinet/if_ether.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: if_ether.c,v 1.243 2020/06/24 22:03:43 cheloha Exp $	*/
+/*	$OpenBSD: if_ether.c,v 1.244 2021/04/23 21:47:32 bluhm Exp $	*/
 /*	$NetBSD: if_ether.c,v 1.31 1996/05/11 12:59:58 mycroft Exp $	*/
 
 /*
@@ -60,6 +60,7 @@
 #include <netinet/in.h>
 #include <netinet/in_var.h>
 #include <netinet/if_ether.h>
+#include <netinet/ip_var.h>
 #if NCARP > 0
 #include <netinet/ip_carp.h>
 #endif
diff --git a/sys/netinet/ip_input.c b/sys/netinet/ip_input.c
index e5b74e4cb5f..69d5646088b 100644
--- a/sys/netinet/ip_input.c
+++ b/sys/netinet/ip_input.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: ip_input.c,v 1.356 2021/03/30 08:37:10 sashan Exp $	*/
+/*	$OpenBSD: ip_input.c,v 1.357 2021/04/23 21:47:32 bluhm Exp $	*/
 /*	$NetBSD: ip_input.c,v 1.30 1996/03/16 23:53:58 christos Exp $	*/
 
 /*
@@ -126,7 +126,6 @@ const struct sysctl_bounded_args ipctl_vars[] = {
 	{ IPCTL_IPPORT_MAXQUEUE, &ip_maxqueue, 0, 10000 },
 	{ IPCTL_MFORWARDING, &ipmforwarding, 0, 1 },
 	{ IPCTL_MULTIPATH, &ipmultipath, 0, 1 },
-	{ IPCTL_ARPQUEUED, &la_hold_total, 0, 1000 },
 	{ IPCTL_ARPTIMEOUT, &arpt_keep, 0, INT_MAX },
 	{ IPCTL_ARPDOWN, &arpt_down, 0, INT_MAX },
 };
@@ -1643,6 +1642,8 @@ ip_sysctl(int *name, u_int namelen, void *oldp, size_t *oldlenp, void *newp,
 	case IPCTL_ARPQUEUE:
 		return (sysctl_niq(name + 1, namelen - 1,
 		    oldp, oldlenp, newp, newlen, &arpinq));
+	case IPCTL_ARPQUEUED:
+		return (sysctl_rdint(oldp, oldlenp, newp, la_hold_total));
 	case IPCTL_STATS:
 		return (ip_sysctl_ipstat(oldp, oldlenp, newp));
 #ifdef MROUTING
-- 
2.20.1