From 44cfd3765f46550478a7a3aeb6dd7dc17c2d3e68 Mon Sep 17 00:00:00 2001
From: Robert Watson <rwatson@FreeBSD.org>
Date: Wed, 9 Jul 2008 18:39:55 +0000
Subject: [PATCH] Add sysctl subtree net.raw for generic raw socket
 infrastructure; expose default send and receive socket buffer sizes using
 sysctls so that they can be administered centrally.

Reviewed by:	bz
MFC after:	3 weeks
---
 sys/net/raw_cb.c | 13 +++++++++++--
 1 file changed, 11 insertions(+), 2 deletions(-)

diff --git a/sys/net/raw_cb.c b/sys/net/raw_cb.c
index ed34b5d18551..3de69036a1b2 100644
--- a/sys/net/raw_cb.c
+++ b/sys/net/raw_cb.c
@@ -34,11 +34,13 @@
 #include <sys/param.h>
 #include <sys/domain.h>
 #include <sys/lock.h>
+#include <sys/kernel.h>
 #include <sys/malloc.h>
 #include <sys/mutex.h>
 #include <sys/protosw.h>
 #include <sys/socket.h>
 #include <sys/socketvar.h>
+#include <sys/sysctl.h>
 #include <sys/systm.h>
 
 #include <net/raw_cb.h>
@@ -55,8 +57,15 @@
 struct mtx rawcb_mtx;
 struct rawcb_list_head rawcb_list;
 
-const static u_long	raw_sendspace = RAWSNDQ;
-const static u_long	raw_recvspace = RAWRCVQ;
+SYSCTL_NODE(_net, OID_AUTO, raw, CTLFLAG_RW, 0, "Raw socket infrastructure");
+
+static u_long	raw_sendspace = RAWSNDQ;
+SYSCTL_ULONG(_net_raw, OID_AUTO, sendspace, CTLFLAG_RW, &raw_sendspace, 0,
+    "Default raw socket send space");
+
+static u_long	raw_recvspace = RAWRCVQ;
+SYSCTL_ULONG(_net_raw, OID_AUTO, recvspace, CTLFLAG_RW, &raw_recvspace, 0,
+    "Default raw socket receive space");
 
 /*
  * Allocate a control block and a nominal amount of buffer space for the