78a6b08618
Mainly focus on files that use BSD 2-Clause license, however the tool I was using misidentified many licenses so this was mostly a manual - error prone - task. The Software Package Data Exchange (SPDX) group provides a specification to make it easier for automated tools to detect and summarize well known opensource licenses. We are gradually adopting the specification, noting that the tags are considered only advisory and do not, in any way, superceed or replace the license texts. No functional change intended.
158 lines
4.3 KiB
C
158 lines
4.3 KiB
C
/*-
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* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
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*
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* Copyright (c) 2002-2008 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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*
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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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__FBSDID("$FreeBSD$");
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/*
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* IEEE 802.11 NULL crypto support.
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*/
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#include "opt_wlan.h"
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#include <sys/param.h>
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#include <sys/kernel.h>
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#include <sys/malloc.h>
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#include <sys/systm.h>
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#include <sys/mbuf.h>
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#include <sys/module.h>
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#include <sys/socket.h>
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#include <net/if.h>
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#include <net/if_media.h>
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#include <net/ethernet.h>
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#include <net80211/ieee80211_var.h>
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static void *none_attach(struct ieee80211vap *, struct ieee80211_key *);
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static void none_detach(struct ieee80211_key *);
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static int none_setkey(struct ieee80211_key *);
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static void none_setiv(struct ieee80211_key *, uint8_t *);
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static int none_encap(struct ieee80211_key *, struct mbuf *);
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static int none_decap(struct ieee80211_key *, struct mbuf *, int);
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static int none_enmic(struct ieee80211_key *, struct mbuf *, int);
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static int none_demic(struct ieee80211_key *, struct mbuf *, int);
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const struct ieee80211_cipher ieee80211_cipher_none = {
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.ic_name = "NONE",
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.ic_cipher = IEEE80211_CIPHER_NONE,
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.ic_header = 0,
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.ic_trailer = 0,
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.ic_miclen = 0,
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.ic_attach = none_attach,
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.ic_detach = none_detach,
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.ic_setkey = none_setkey,
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.ic_setiv = none_setiv,
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.ic_encap = none_encap,
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.ic_decap = none_decap,
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.ic_enmic = none_enmic,
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.ic_demic = none_demic,
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};
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static void *
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none_attach(struct ieee80211vap *vap, struct ieee80211_key *k)
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{
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return vap; /* for diagnostics+stats */
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}
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static void
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none_detach(struct ieee80211_key *k)
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{
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(void) k;
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}
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static int
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none_setkey(struct ieee80211_key *k)
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{
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(void) k;
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return 1;
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}
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static void
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none_setiv(struct ieee80211_key *k, uint8_t *ivp)
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{
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}
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static int
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none_encap(struct ieee80211_key *k, struct mbuf *m)
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{
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struct ieee80211vap *vap = k->wk_private;
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#ifdef IEEE80211_DEBUG
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struct ieee80211_frame *wh = mtod(m, struct ieee80211_frame *);
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uint8_t keyid;
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keyid = ieee80211_crypto_get_keyid(vap, k);
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/*
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* The specified key is not setup; this can
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* happen, at least, when changing keys.
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*/
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IEEE80211_NOTE_MAC(vap, IEEE80211_MSG_CRYPTO, wh->i_addr1,
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"key id %u is not set (encap)", keyid);
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#endif
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vap->iv_stats.is_tx_badcipher++;
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return 0;
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}
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static int
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none_decap(struct ieee80211_key *k, struct mbuf *m, int hdrlen)
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{
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struct ieee80211vap *vap = k->wk_private;
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#ifdef IEEE80211_DEBUG
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struct ieee80211_frame *wh = mtod(m, struct ieee80211_frame *);
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const uint8_t *ivp = (const uint8_t *)&wh[1];
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#endif
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/*
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* The specified key is not setup; this can
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* happen, at least, when changing keys.
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*/
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/* XXX useful to know dst too */
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IEEE80211_NOTE_MAC(vap, IEEE80211_MSG_CRYPTO, wh->i_addr2,
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"key id %u is not set (decap)", ivp[IEEE80211_WEP_IVLEN] >> 6);
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vap->iv_stats.is_rx_badkeyid++;
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return 0;
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}
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static int
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none_enmic(struct ieee80211_key *k, struct mbuf *m, int force)
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{
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struct ieee80211vap *vap = k->wk_private;
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vap->iv_stats.is_tx_badcipher++;
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return 0;
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}
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static int
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none_demic(struct ieee80211_key *k, struct mbuf *m, int force)
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{
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struct ieee80211vap *vap = k->wk_private;
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vap->iv_stats.is_rx_badkeyid++;
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return 0;
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}
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