From f397643e36de272c11094268883365c62ebc4152 Mon Sep 17 00:00:00 2001
From: Adrian Chadd <adrian@FreeBSD.org>
Date: Fri, 26 Oct 2012 19:06:24 +0000
Subject: [PATCH] Allow net80211 to be built on -9 and -8.

There are some people who use the -HEAD net80211 and wireless drivers
on earlier FreeBSD versions in order to get the updated 802.11n support.
The previous if_clone API changes broke this.
---
 sys/net80211/ieee80211_freebsd.c | 30 +++++++++++++++++++++++++++++-
 1 file changed, 29 insertions(+), 1 deletion(-)

diff --git a/sys/net80211/ieee80211_freebsd.c b/sys/net80211/ieee80211_freebsd.c
index e307e9d55d53..0ba2ebf6553a 100644
--- a/sys/net80211/ieee80211_freebsd.c
+++ b/sys/net80211/ieee80211_freebsd.c
@@ -65,9 +65,10 @@ SYSCTL_INT(_net_wlan, OID_AUTO, debug, CTLFLAG_RW, &ieee80211_debug,
 
 static MALLOC_DEFINE(M_80211_COM, "80211com", "802.11 com state");
 
+#if __FreeBSD_version >= 1000020
 static const char wlanname[] = "wlan";
-
 static struct if_clone *wlan_cloner;
+#endif
 
 /*
  * Allocate/free com structure in conjunction with ifnet;
@@ -133,10 +134,19 @@ wlan_clone_create(struct if_clone *ifc, int unit, caddr_t params)
 		if_printf(ifp, "TDMA not supported\n");
 		return EOPNOTSUPP;
 	}
+#if __FreeBSD_version >= 1000020
 	vap = ic->ic_vap_create(ic, wlanname, unit,
 			cp.icp_opmode, cp.icp_flags, cp.icp_bssid,
 			cp.icp_flags & IEEE80211_CLONE_MACADDR ?
 			    cp.icp_macaddr : (const uint8_t *)IF_LLADDR(ifp));
+#else
+	vap = ic->ic_vap_create(ic, ifc->ifc_name, unit,
+			cp.icp_opmode, cp.icp_flags, cp.icp_bssid,
+			cp.icp_flags & IEEE80211_CLONE_MACADDR ?
+			    cp.icp_macaddr : (const uint8_t *)IF_LLADDR(ifp));
+
+#endif
+
 	return (vap == NULL ? EIO : 0);
 }
 
@@ -149,11 +159,17 @@ wlan_clone_destroy(struct ifnet *ifp)
 	ic->ic_vap_delete(vap);
 }
 
+IFC_SIMPLE_DECLARE(wlan, 0);
+
 void
 ieee80211_vap_destroy(struct ieee80211vap *vap)
 {
 	CURVNET_SET(vap->iv_ifp->if_vnet);
+#if __FreeBSD_version >= 1000020
 	if_clone_destroyif(wlan_cloner, vap->iv_ifp);
+#else
+	if_clone_destroyif(&wlan_cloner, vap->iv_ifp);
+#endif
 	CURVNET_RESTORE();
 }
 
@@ -811,13 +827,21 @@ wlan_modevent(module_t mod, int type, void *unused)
 			EVENTHANDLER_DEREGISTER(bpf_track, wlan_bpfevent);
 			return ENOMEM;
 		}
+#if __FreeBSD_version >= 1000020
 		wlan_cloner = if_clone_simple(wlanname, wlan_clone_create,
 		    wlan_clone_destroy, 0);
+#else
+		if_clone_attach(&wlan_cloner);
+#endif
 		if_register_com_alloc(IFT_IEEE80211, wlan_alloc, wlan_free);
 		return 0;
 	case MOD_UNLOAD:
 		if_deregister_com_alloc(IFT_IEEE80211);
+#if __FreeBSD_version >= 1000020
 		if_clone_detach(wlan_cloner);
+#else
+		if_clone_detach(&wlan_cloner);
+#endif
 		EVENTHANDLER_DEREGISTER(bpf_track, wlan_bpfevent);
 		EVENTHANDLER_DEREGISTER(iflladdr_event, wlan_ifllevent);
 		return 0;
@@ -826,7 +850,11 @@ wlan_modevent(module_t mod, int type, void *unused)
 }
 
 static moduledata_t wlan_mod = {
+#if __FreeBSD_version >= 1000020
 	wlanname,
+#else
+	"wlan",
+#endif
 	wlan_modevent,
 	0
 };