Current Path : /sys/net80211/ |
FreeBSD hs32.drive.ne.jp 9.1-RELEASE FreeBSD 9.1-RELEASE #1: Wed Jan 14 12:18:08 JST 2015 root@hs32.drive.ne.jp:/sys/amd64/compile/hs32 amd64 |
Current File : //sys/net80211/ieee80211_crypto_none.c |
/*- * Copyright (c) 2002-2008 Sam Leffler, Errno Consulting * 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: release/9.1.0/sys/net80211/ieee80211_crypto_none.c 178354 2008-04-20 20:35:46Z sam $"); /* * IEEE 802.11 NULL crypto support. */ #include "opt_wlan.h" #include <sys/param.h> #include <sys/kernel.h> #include <sys/systm.h> #include <sys/mbuf.h> #include <sys/module.h> #include <sys/socket.h> #include <net/if.h> #include <net/if_media.h> #include <net/ethernet.h> #include <net80211/ieee80211_var.h> static void *none_attach(struct ieee80211vap *, struct ieee80211_key *); static void none_detach(struct ieee80211_key *); static int none_setkey(struct ieee80211_key *); static int none_encap(struct ieee80211_key *, struct mbuf *, uint8_t); static int none_decap(struct ieee80211_key *, struct mbuf *, int); static int none_enmic(struct ieee80211_key *, struct mbuf *, int); static int none_demic(struct ieee80211_key *, struct mbuf *, int); const struct ieee80211_cipher ieee80211_cipher_none = { .ic_name = "NONE", .ic_cipher = IEEE80211_CIPHER_NONE, .ic_header = 0, .ic_trailer = 0, .ic_miclen = 0, .ic_attach = none_attach, .ic_detach = none_detach, .ic_setkey = none_setkey, .ic_encap = none_encap, .ic_decap = none_decap, .ic_enmic = none_enmic, .ic_demic = none_demic, }; static void * none_attach(struct ieee80211vap *vap, struct ieee80211_key *k) { return vap; /* for diagnostics+stats */ } static void none_detach(struct ieee80211_key *k) { (void) k; } static int none_setkey(struct ieee80211_key *k) { (void) k; return 1; } static int none_encap(struct ieee80211_key *k, struct mbuf *m, uint8_t keyid) { struct ieee80211vap *vap = k->wk_private; #ifdef IEEE80211_DEBUG struct ieee80211_frame *wh = mtod(m, struct ieee80211_frame *); #endif /* * The specified key is not setup; this can * happen, at least, when changing keys. */ IEEE80211_NOTE_MAC(vap, IEEE80211_MSG_CRYPTO, wh->i_addr1, "key id %u is not set (encap)", keyid>>6); vap->iv_stats.is_tx_badcipher++; return 0; } static int none_decap(struct ieee80211_key *k, struct mbuf *m, int hdrlen) { struct ieee80211vap *vap = k->wk_private; #ifdef IEEE80211_DEBUG struct ieee80211_frame *wh = mtod(m, struct ieee80211_frame *); const uint8_t *ivp = (const uint8_t *)&wh[1]; #endif /* * The specified key is not setup; this can * happen, at least, when changing keys. */ /* XXX useful to know dst too */ IEEE80211_NOTE_MAC(vap, IEEE80211_MSG_CRYPTO, wh->i_addr2, "key id %u is not set (decap)", ivp[IEEE80211_WEP_IVLEN] >> 6); vap->iv_stats.is_rx_badkeyid++; return 0; } static int none_enmic(struct ieee80211_key *k, struct mbuf *m, int force) { struct ieee80211vap *vap = k->wk_private; vap->iv_stats.is_tx_badcipher++; return 0; } static int none_demic(struct ieee80211_key *k, struct mbuf *m, int force) { struct ieee80211vap *vap = k->wk_private; vap->iv_stats.is_rx_badkeyid++; return 0; }