5 files changed, 135 insertions, 2 deletions

diff --git a/sys/conf/files b/sys/conf/files
index c1bc03a0c4e0..75f16e549136 100644
--- a/sys/conf/files
+++ b/sys/conf/files
@@ -2453,6 +2453,7 @@ net80211/ieee80211_power.c	optional wlan
 net80211/ieee80211_proto.c	optional wlan
 net80211/ieee80211_radiotap.c	optional wlan
 net80211/ieee80211_ratectl.c	optional wlan
+net80211/ieee80211_ratectl_none.c optional wlan
 net80211/ieee80211_regdomain.c	optional wlan
 net80211/ieee80211_rssadapt.c	optional wlan wlan_rssadapt
 net80211/ieee80211_scan.c	optional wlan
diff --git a/sys/modules/wlan/Makefile b/sys/modules/wlan/Makefile
index 34a4f0d31126..682aab3cfa9c 100644
--- a/sys/modules/wlan/Makefile
+++ b/sys/modules/wlan/Makefile
@@ -9,7 +9,7 @@ SRCS=	ieee80211.c ieee80211_action.c ieee80211_ageq.c \
 	ieee80211_mesh.c ieee80211_node.c ieee80211_output.c ieee80211_phy.c \
 	ieee80211_power.c ieee80211_proto.c ieee80211_scan.c \
 	ieee80211_scan_sta.c ieee80211_radiotap.c ieee80211_ratectl.c \
-	ieee80211_regdomain.c \
+	ieee80211_ratectl_none.c ieee80211_regdomain.c \
 	ieee80211_ht.c ieee80211_hwmp.c ieee80211_adhoc.c ieee80211_hostap.c \
 	ieee80211_monitor.c ieee80211_sta.c ieee80211_wds.c ieee80211_ddb.c
 SRCS+=	bus_if.h device_if.h opt_inet.h opt_inet6.h opt_ipx.h opt_wlan.h \
diff --git a/sys/net80211/ieee80211_ratectl.c b/sys/net80211/ieee80211_ratectl.c
index 2e8eb7e21535..ea3d8d412c5d 100644
--- a/sys/net80211/ieee80211_ratectl.c
+++ b/sys/net80211/ieee80211_ratectl.c
@@ -39,6 +39,14 @@ __FBSDID("$FreeBSD$");
 
 static const struct ieee80211_ratectl *ratectls[IEEE80211_RATECTL_MAX];
 
+static const char *ratectl_modnames[IEEE80211_RATECTL_MAX] = {
+	[IEEE80211_RATECTL_AMRR]	= "wlan_amrr",
+	[IEEE80211_RATECTL_RSSADAPT]	= "wlan_rssadapt",
+	[IEEE80211_RATECTL_ONOE]	= "wlan_onoe",
+	[IEEE80211_RATECTL_SAMPLE]	= "wlan_sample",
+	[IEEE80211_RATECTL_NONE]	= "wlan_none",
+};
+
 MALLOC_DEFINE(M_80211_RATECTL, "80211ratectl", "802.11 rate control");
 
 void
@@ -62,5 +70,15 @@ ieee80211_ratectl_set(struct ieee80211vap *vap, int type)
 {
 	if (type >= IEEE80211_RATECTL_MAX)
 		return;
+	if (ratectls[type] == NULL) {
+		ieee80211_load_module(ratectl_modnames[type]);
+		if (ratectls[type] == NULL) {
+			IEEE80211_DPRINTF(vap, IEEE80211_MSG_RATECTL,
+			    "%s: unable to load algo %u, module %s\n",
+			    __func__, type, ratectl_modnames[type]);
+			vap->iv_rate = ratectls[IEEE80211_RATECTL_NONE];
+			return;
+		}
+	}
 	vap->iv_rate = ratectls[type];
 }
diff --git a/sys/net80211/ieee80211_ratectl.h b/sys/net80211/ieee80211_ratectl.h
index 73b4f3216505..87b26984dc04 100644
--- a/sys/net80211/ieee80211_ratectl.h
+++ b/sys/net80211/ieee80211_ratectl.h
@@ -26,10 +26,11 @@
  */
 
 enum ieee80211_ratealgs {
-	IEEE80211_RATECTL_AMRR 		= 0,
+	IEEE80211_RATECTL_AMRR		= 0,
 	IEEE80211_RATECTL_RSSADAPT	= 1,
 	IEEE80211_RATECTL_ONOE		= 2,
 	IEEE80211_RATECTL_SAMPLE	= 3,
+	IEEE80211_RATECTL_NONE		= 4,
 	IEEE80211_RATECTL_MAX
 };
 
diff --git a/sys/net80211/ieee80211_ratectl_none.c b/sys/net80211/ieee80211_ratectl_none.c
new file mode 100644
index 000000000000..0979e9d942c9
--- /dev/null
+++ b/sys/net80211/ieee80211_ratectl_none.c
@@ -0,0 +1,113 @@
+/*-
+ * Copyright (c) 2010 Bernhard Schmidt <bschmidt@FreeBSD.org>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+#include "opt_wlan.h"
+
+#include <sys/param.h>
+#include <sys/kernel.h>
+#include <sys/module.h>
+#include <sys/socket.h>
+#include <sys/sysctl.h>
+
+#include <net/if.h>
+#include <net/if_media.h>
+
+#ifdef INET
+#include <netinet/in.h>
+#include <netinet/if_ether.h>
+#endif
+
+#include <net80211/ieee80211_var.h>
+#include <net80211/ieee80211_ratectl.h>
+
+static void
+none_init(struct ieee80211vap *vap)
+{
+}
+
+static void
+none_deinit(struct ieee80211vap *vap)
+{
+	free(vap->iv_rs, M_80211_RATECTL);
+}
+
+static void
+none_node_init(struct ieee80211_node *ni)
+{
+}
+
+static void
+none_node_deinit(struct ieee80211_node *ni)
+{
+}
+
+static int
+none_rate(struct ieee80211_node *ni, void *arg __unused, uint32_t iarg __unused)
+{
+	int rix = 0;
+
+	ni->ni_txrate = ni->ni_rates.rs_rates[rix] & IEEE80211_RATE_VAL;
+	return rix;
+}
+
+static void
+none_tx_complete(const struct ieee80211vap *vap,
+    const struct ieee80211_node *ni, int ok,
+    void *arg1, void *arg2 __unused)
+{
+}
+
+static void
+none_tx_update(const struct ieee80211vap *vap, const struct ieee80211_node *ni,
+    void *arg1, void *arg2, void *arg3)
+{
+}
+
+static void
+none_setinterval(const struct ieee80211vap *vap, int msecs)
+{
+}
+
+/* number of references from net80211 layer */
+static	int nrefs = 0;
+
+static const struct ieee80211_ratectl none = {
+	.ir_name	= "none",
+	.ir_attach	= NULL,
+	.ir_detach	= NULL,
+	.ir_init	= none_init,
+	.ir_deinit	= none_deinit,
+	.ir_node_init	= none_node_init,
+	.ir_node_deinit	= none_node_deinit,
+	.ir_rate	= none_rate,
+	.ir_tx_complete	= none_tx_complete,
+	.ir_tx_update	= none_tx_update,
+	.ir_setinterval	= none_setinterval,
+};
+IEEE80211_RATECTL_MODULE(ratectl_none, 1);
+IEEE80211_RATECTL_ALG(none, IEEE80211_RATECTL_NONE, none);