8a031a1d1e
module hook, we can share a common set of synchronization structures. This cuts the amount of cacheline_aligned data for these structures by 50%. Note that we still have a per-hook localcount, since we need to count individual references. As discussed with riastradh@ Welcome to 9.99.22 !
131 lines
4.2 KiB
C
131 lines
4.2 KiB
C
/* $NetBSD: ieee80211_20.c,v 1.6 2019/12/12 02:15:42 pgoyette Exp $ */
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/*-
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* Copyright (c) 2001 Atsushi Onoe
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* Copyright (c) 2002-2005 Sam Leffler, Errno Consulting
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* Alternatively, this software may be distributed under the terms of the
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* GNU General Public License ("GPL") version 2 as published by the Free
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* Software Foundation.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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#ifdef __FreeBSD__
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__FBSDID("$FreeBSD: src/sys/net80211/ieee80211_ioctl.c,v 1.35 2005/08/30 14:27:47 avatar Exp $");
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#endif
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#ifdef __NetBSD__
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__KERNEL_RCSID(0, "$NetBSD: ieee80211_20.c,v 1.6 2019/12/12 02:15:42 pgoyette Exp $");
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#endif
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/*
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* IEEE 802.11 ioctl support
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*/
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#ifdef _KERNEL_OPT
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#include "opt_inet.h"
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#include "opt_compat_netbsd.h"
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#endif
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#include <sys/endian.h>
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#include <sys/param.h>
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#include <sys/kernel.h>
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#include <sys/socket.h>
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#include <sys/sockio.h>
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#include <sys/systm.h>
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#include <sys/proc.h>
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#include <sys/kauth.h>
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#include <sys/compat_stub.h>
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#include <net/if.h>
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#include <net/if_arp.h>
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#include <net/if_media.h>
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#include <net/if_ether.h>
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#include <net80211/ieee80211_var.h>
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#include <net80211/ieee80211_ioctl.h>
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#include <dev/ic/wi_ieee.h>
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#include <compat/common/compat_mod.h>
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#include <compat/sys/sockio.h>
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static void
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ieee80211_get_ostats(struct ieee80211_ostats *ostats,
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struct ieee80211_stats *stats)
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{
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#define COPYSTATS1(__ostats, __nstats, __dstmemb, __srcmemb, __lastmemb)\
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(void)memcpy(&(__ostats)->__dstmemb, &(__nstats)->__srcmemb, \
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offsetof(struct ieee80211_stats, __lastmemb) - \
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offsetof(struct ieee80211_stats, __srcmemb))
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#define COPYSTATS(__ostats, __nstats, __dstmemb, __lastmemb) \
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COPYSTATS1(__ostats, __nstats, __dstmemb, __dstmemb, __lastmemb)
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COPYSTATS(ostats, stats, is_rx_badversion, is_rx_unencrypted);
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COPYSTATS(ostats, stats, is_rx_wepfail, is_rx_beacon);
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COPYSTATS(ostats, stats, is_rx_rstoobig, is_rx_auth_countermeasures);
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COPYSTATS(ostats, stats, is_rx_assoc_bss, is_rx_assoc_badwpaie);
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COPYSTATS(ostats, stats, is_rx_deauth, is_rx_unauth);
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COPYSTATS1(ostats, stats, is_tx_nombuf, is_tx_nobuf, is_tx_badcipher);
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COPYSTATS(ostats, stats, is_scan_active, is_crypto_tkip);
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}
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static int
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ieee80211_20_ioctl(struct ieee80211com *ic, u_long cmd, void *data)
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{
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struct ieee80211_ostats ostats;
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struct ifreq *ifr;
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int s, error;
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switch (cmd) {
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case OSIOCG80211STATS:
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case OSIOCG80211ZSTATS:
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s = splnet();
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ifr = (struct ifreq *)data;
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ieee80211_get_ostats(&ostats, &ic->ic_stats);
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error = copyout(&ostats, ifr->ifr_data, sizeof(ostats));
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if (error == 0 && cmd == OSIOCG80211ZSTATS)
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(void)memset(&ic->ic_stats, 0, sizeof(ic->ic_stats));
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splx(s);
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return error;
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default:
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return EPASSTHROUGH;
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}
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}
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void
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ieee80211_20_init(void)
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{
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MODULE_HOOK_SET(ieee80211_ioctl_20_hook, ieee80211_20_ioctl);
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}
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void
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ieee80211_20_fini(void)
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{
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MODULE_HOOK_UNSET(ieee80211_ioctl_20_hook);
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}
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