mirror of
https://git.hardenedbsd.org/hardenedbsd/HardenedBSD.git
synced 2024-11-14 06:12:01 +01:00
a7c6aabdc3
the IEEE80211_C_RATECTL flag set, default to NONE for all drivers. Only if a driver calls ieee80211_ratectl_init() check if the NONE algo is still selected and try to use AMRR in that case. Drivers are still free to use any other algo by calling ieee80211_ratectl_set() prior to the ieee80211_ratectl_init() call. After this change it is now safe to assume that a ratectl algo is always available and selected, which renders the IEEE80211_C_RATECTL flag pretty much useless. Therefore revert r211314 and 211546. Reviewed by: rpaulo MFC after: 2 weeks
93 lines
2.9 KiB
C
93 lines
2.9 KiB
C
/*-
|
|
* Copyright (c) 2010 Rui Paulo <rpaulo@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 <sys/param.h>
|
|
#include <sys/kernel.h>
|
|
#include <sys/systm.h>
|
|
#include <sys/socket.h>
|
|
|
|
#include <net/if.h>
|
|
#include <net/if_media.h>
|
|
|
|
#include <net80211/ieee80211_var.h>
|
|
#include <net80211/ieee80211_ratectl.h>
|
|
|
|
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
|
|
ieee80211_ratectl_register(int type, const struct ieee80211_ratectl *ratectl)
|
|
{
|
|
if (type >= IEEE80211_RATECTL_MAX)
|
|
return;
|
|
ratectls[type] = ratectl;
|
|
}
|
|
|
|
void
|
|
ieee80211_ratectl_unregister(int type)
|
|
{
|
|
if (type >= IEEE80211_RATECTL_MAX)
|
|
return;
|
|
ratectls[type] = NULL;
|
|
}
|
|
|
|
void
|
|
ieee80211_ratectl_init(struct ieee80211vap *vap)
|
|
{
|
|
if (vap->iv_rate == ratectls[IEEE80211_RATECTL_NONE])
|
|
ieee80211_ratectl_set(vap, IEEE80211_RATECTL_AMRR);
|
|
vap->iv_rate->ir_init(vap);
|
|
}
|
|
|
|
void
|
|
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];
|
|
}
|