0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc/*
ff3124eff995e6cd8ebd8c6543648e0670920034ff * Copyright 2008 Sun Microsystems, Inc. All rights reserved.
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc * Use is subject to license terms.
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc */
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc/*
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc * Copyright (c) 2001 Atsushi Onoe
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc * Copyright (c) 2002-2005 Sam Leffler, Errno Consulting
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc * All rights reserved.
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc *
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc * Redistribution and use in source and binary forms, with or without
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc * modification, are permitted provided that the following conditions
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc * are met:
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc * 1. Redistributions of source code must retain the above copyright
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc * notice, this list of conditions and the following disclaimer.
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc * 2. Redistributions in binary form must reproduce the above copyright
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc * notice, this list of conditions and the following disclaimer in the
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc * documentation and/or other materials provided with the distribution.
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc * 3. The name of the author may not be used to endorse or promote products
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc * derived from this software without specific prior written permission.
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc *
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc * Alternatively, this software may be distributed under the terms of the
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc * GNU General Public License ("GPL") version 2 as published by the Free
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc * Software Foundation.
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc *
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc */
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc#pragma ident "%Z%%M% %I% %E% SMI"
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc/*
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc * IEEE 802.11 generic crypto support
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc */
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc#include <sys/types.h>
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc#include <sys/note.h>
3a1a8936dac0ebe7e956fa122b0b0d15e62d4108zf#include <sys/crypto/common.h>
3a1a8936dac0ebe7e956fa122b0b0d15e62d4108zf#include <sys/crypto/api.h>
ff3124eff995e6cd8ebd8c6543648e0670920034ff#include <sys/strsun.h>
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc#include "net80211_impl.h"
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxcextern const struct ieee80211_cipher wep;
a399b7655a1d835aa8606c2b29e4e777baac8635zfextern const struct ieee80211_cipher tkip;
a399b7655a1d835aa8606c2b29e4e777baac8635zfextern const struct ieee80211_cipher ccmp;
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc/*
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc * Table of registered cipher modules.
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc */
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxcstatic const char *cipher_modnames[] = {
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc "wlan_wep", /* IEEE80211_CIPHER_WEP */
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc "wlan_tkip", /* IEEE80211_CIPHER_TKIP */
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc "wlan_aes_ocb", /* IEEE80211_CIPHER_AES_OCB */
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc "wlan_ccmp", /* IEEE80211_CIPHER_AES_CCM */
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc "wlan_ckip", /* IEEE80211_CIPHER_CKIP */
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc};
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc/*
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc * Default "null" key management routines.
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc */
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc/* ARGSUSED */
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxcstatic int
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxcnulldev_key_alloc(ieee80211com_t *ic, const struct ieee80211_key *k,
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc ieee80211_keyix *keyix, ieee80211_keyix *rxkeyix)
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc{
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc *keyix = 0; /* use key index 0 for ucast key */
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc *rxkeyix = IEEE80211_KEYIX_NONE;
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc return (1);
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc}
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc/* ARGSUSED */
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxcstatic int
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxcnulldev_key_delete(ieee80211com_t *ic, const struct ieee80211_key *k)
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc{
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc return (1);
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc}
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc/* ARGSUSED */
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxcstatic int
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxcnulldev_key_set(ieee80211com_t *ic, const struct ieee80211_key *k,
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc const uint8_t *mac)
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc{
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc return (1);
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc}
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc/* ARGSUSED */
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxcstatic void
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxcnulldev_key_update(ieee80211com_t *ic)
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc{
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc /* noop */
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc}
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc/*
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc * Reset key state to an unused state. The crypto
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc * key allocation mechanism insures other state (e.g.
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc * key data) is properly setup before a key is used.
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc */
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxcvoid
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxcieee80211_crypto_resetkey(ieee80211com_t *ic,
239e91abc172c1397b1e94869c5d0e8ab67bfc22hx struct ieee80211_key *k, ieee80211_keyix ix)
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc{
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc k->wk_cipher = &ieee80211_cipher_none;
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc k->wk_private = k->wk_cipher->ic_attach(ic, k);
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc k->wk_keyix = ix;
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc k->wk_flags = IEEE80211_KEY_XMIT | IEEE80211_KEY_RECV;
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc}
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc/*
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc * Establish a relationship between the specified key and cipher
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc * and, if necessary, allocate a hardware index from the driver.
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc * Note that when a fixed key index is required it must be specified
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc * and we blindly assign it w/o consulting the driver.
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc *
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc * This must be the first call applied to a key; all the other key
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc * routines assume wk_cipher is setup.
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc *
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc * Locking must be handled by the caller using:
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc * ieee80211_key_update_begin(ic);
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc * ieee80211_key_update_end(ic);
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc */
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxcint
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxcieee80211_crypto_newkey(ieee80211com_t *ic, int cipher, int flags,
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc struct ieee80211_key *key)
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc{
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc const struct ieee80211_cipher *cip;
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc ieee80211_keyix keyix, rxkeyix;
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc void *keyctx;
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc uint16_t oflags;
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc /*
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc * Validate cipher and set reference to cipher routines.
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc */
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc if (cipher >= IEEE80211_CIPHER_MAX) {
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc ieee80211_dbg(IEEE80211_MSG_CRYPTO, "ieee80211_crypto_newkey: "
239e91abc172c1397b1e94869c5d0e8ab67bfc22hx "invalid cipher %u\n", cipher);
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc return (0);
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc }
239e91abc172c1397b1e94869c5d0e8ab67bfc22hx cip = ic->ic_ciphers[cipher];
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc /* already load all the ciphers, cip can't be NULL */
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc if (cip == NULL) {
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc ieee80211_dbg(IEEE80211_MSG_CRYPTO, "ieee80211_crypto_newkey: "
239e91abc172c1397b1e94869c5d0e8ab67bfc22hx "unable to load cipher %u, module %s\n",
239e91abc172c1397b1e94869c5d0e8ab67bfc22hx cipher, cipher < IEEE80211_N(cipher_modnames) ?
239e91abc172c1397b1e94869c5d0e8ab67bfc22hx cipher_modnames[cipher] : "<unknown>");
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc return (0);
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc }
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc oflags = key->wk_flags;
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc flags &= IEEE80211_KEY_COMMON;
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc /*
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc * If the hardware does not support the cipher then
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc * fallback to a host-based implementation.
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc */
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc if ((ic->ic_caps & (1<<cipher)) == 0) {
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc ieee80211_dbg(IEEE80211_MSG_CRYPTO, "ieee80211_crypto_newkey: "
239e91abc172c1397b1e94869c5d0e8ab67bfc22hx "no h/w support for cipher %s, falling back to s/w\n",
239e91abc172c1397b1e94869c5d0e8ab67bfc22hx cip->ic_name);
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc flags |= IEEE80211_KEY_SWCRYPT;
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc }
a399b7655a1d835aa8606c2b29e4e777baac8635zf /*
a399b7655a1d835aa8606c2b29e4e777baac8635zf * Hardware TKIP with software MIC is an important
a399b7655a1d835aa8606c2b29e4e777baac8635zf * combination; we handle it by flagging each key,
a399b7655a1d835aa8606c2b29e4e777baac8635zf * the cipher modules honor it.
a399b7655a1d835aa8606c2b29e4e777baac8635zf */
a399b7655a1d835aa8606c2b29e4e777baac8635zf if (cipher == IEEE80211_CIPHER_TKIP &&
a399b7655a1d835aa8606c2b29e4e777baac8635zf (ic->ic_caps & IEEE80211_C_TKIPMIC) == 0) {
a399b7655a1d835aa8606c2b29e4e777baac8635zf ieee80211_dbg(IEEE80211_MSG_CRYPTO,
a399b7655a1d835aa8606c2b29e4e777baac8635zf "no h/w support for TKIP MIC, falling back to s/w\n");
a399b7655a1d835aa8606c2b29e4e777baac8635zf flags |= IEEE80211_KEY_SWMIC;
a399b7655a1d835aa8606c2b29e4e777baac8635zf }
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc /*
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc * Bind cipher to key instance. Note we do this
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc * after checking the device capabilities so the
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc * cipher module can optimize space usage based on
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc * whether or not it needs to do the cipher work.
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc */
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc if (key->wk_cipher != cip || key->wk_flags != flags) {
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxcagain:
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc /*
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc * Fillin the flags so cipher modules can see s/w
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc * crypto requirements and potentially allocate
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc * different state and/or attach different method
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc * pointers.
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc */
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc key->wk_flags = (uint16_t)flags;
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc keyctx = cip->ic_attach(ic, key);
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc if (keyctx == NULL) {
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc ieee80211_dbg(IEEE80211_MSG_CRYPTO, "crypto_setkey: "
239e91abc172c1397b1e94869c5d0e8ab67bfc22hx "unable to attach cipher %s\n", cip->ic_name);
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc key->wk_flags = oflags; /* restore old flags */
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc return (0);
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc }
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc CIPHER_DETACH(key); /* Detach old cipher */
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc key->wk_cipher = cip;
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc key->wk_private = keyctx;
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc }
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc /*
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc * Commit to requested usage so driver can see the flags.
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc */
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc key->wk_flags = (uint16_t)flags;
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc /*
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc * Ask the driver for a key index if we don't have one.
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc * Note that entries in the global key table always have
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc * an index; this means it's safe to call this routine
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc * for these entries just to setup the reference to the
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc * cipher template. Note also that when using software
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc * crypto we also call the driver to give us a key index.
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc */
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc if (key->wk_keyix == IEEE80211_KEYIX_NONE) {
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc if (!DEV_KEY_ALLOC(ic, key, &keyix, &rxkeyix)) {
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc /*
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc * Driver has no room; fallback to doing crypto
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc * in the host. We change the flags and start the
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc * procedure over. If we get back here then there's
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc * no hope and we bail. Note that this can leave
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc * the key in a inconsistent state if the caller
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc * continues to use it.
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc */
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc if ((key->wk_flags & IEEE80211_KEY_SWCRYPT) == 0) {
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc ieee80211_dbg(IEEE80211_MSG_CRYPTO,
239e91abc172c1397b1e94869c5d0e8ab67bfc22hx "crypto_setkey: "
239e91abc172c1397b1e94869c5d0e8ab67bfc22hx "no h/w resources for cipher %s, "
239e91abc172c1397b1e94869c5d0e8ab67bfc22hx "falling back to s/w\n", cip->ic_name);
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc oflags = key->wk_flags;
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc flags |= IEEE80211_KEY_SWCRYPT;
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc if (cipher == IEEE80211_CIPHER_TKIP)
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc flags |= IEEE80211_KEY_SWMIC;
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc goto again;
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc }
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc ieee80211_dbg(IEEE80211_MSG_CRYPTO, "crypto_setkey: "
239e91abc172c1397b1e94869c5d0e8ab67bfc22hx "unable to setup cipher %s\n", cip->ic_name);
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc return (0);
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc }
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc key->wk_keyix = keyix;
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc key->wk_rxkeyix = rxkeyix;
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc }
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc return (1);
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc}
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc/*
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc * Remove the key (no locking, for internal use).
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc */
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxcstatic int
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxcieee80211_crypto_delkey_locked(ieee80211com_t *ic, struct ieee80211_key *key)
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc{
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc uint16_t keyix;
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc ASSERT(key->wk_cipher != NULL);
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc keyix = key->wk_keyix;
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc if (keyix != IEEE80211_KEYIX_NONE) {
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc /*
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc * Remove hardware entry.
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc */
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc if (!DEV_KEY_DELETE(ic, key)) {
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc ieee80211_dbg(IEEE80211_MSG_CRYPTO,
239e91abc172c1397b1e94869c5d0e8ab67bfc22hx "ieee80211_crypto_delkey_locked: ",
239e91abc172c1397b1e94869c5d0e8ab67bfc22hx "driverdeletes key %u failed\n", keyix);
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc }
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc }
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc CIPHER_DETACH(key);
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc bzero(key, sizeof (struct ieee80211_key));
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc /* NB: cannot depend on key index to decide this */
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc ieee80211_crypto_resetkey(ic, key, IEEE80211_KEYIX_NONE);
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc return (1);
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc}
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc/*
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc * Remove the specified key.
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc */
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxcint
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxcieee80211_crypto_delkey(ieee80211com_t *ic, struct ieee80211_key *key)
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc{
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc int status;
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc KEY_UPDATE_BEGIN(ic);
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc status = ieee80211_crypto_delkey_locked(ic, key);
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc KEY_UPDATE_END(ic);
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc return (status);
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc}
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc/*
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc * Clear the global key table.
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc */
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxcstatic void
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxcieee80211_crypto_delglobalkeys(ieee80211com_t *ic)
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc{
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc int i;
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc KEY_UPDATE_BEGIN(ic);
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc for (i = 0; i < IEEE80211_WEP_NKID; i++)
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc (void) ieee80211_crypto_delkey_locked(ic, &ic->ic_nw_keys[i]);
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc KEY_UPDATE_END(ic);
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc}
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc/*
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc * Set the contents of the specified key.
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc *
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc * Locking must be handled by the caller using:
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc * ieee80211_key_update_begin(ic);
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc * ieee80211_key_update_end(ic);
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc */
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxcint
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxcieee80211_crypto_setkey(ieee80211com_t *ic, struct ieee80211_key *key,
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc const uint8_t *macaddr)
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc{
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc const struct ieee80211_cipher *cip = key->wk_cipher;
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc ASSERT(cip != NULL);
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc ieee80211_dbg(IEEE80211_MSG_CRYPTO, "ieee80211_crypto_setkey: "
239e91abc172c1397b1e94869c5d0e8ab67bfc22hx "%s keyix %u flags 0x%x mac %s len %u\n",
239e91abc172c1397b1e94869c5d0e8ab67bfc22hx cip->ic_name, key->wk_keyix, key->wk_flags,
239e91abc172c1397b1e94869c5d0e8ab67bfc22hx ieee80211_macaddr_sprintf(macaddr), key->wk_keylen);
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc /*
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc * Give cipher a chance to validate key contents.
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc * should happen before modifying state.
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc */
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc if (cip->ic_setkey(key) == 0) {
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc ieee80211_dbg(IEEE80211_MSG_CRYPTO, "ieee80211_crypto_setkey: "
239e91abc172c1397b1e94869c5d0e8ab67bfc22hx "cipher %s rejected key index %u len %u flags 0x%x\n",
239e91abc172c1397b1e94869c5d0e8ab67bfc22hx cip->ic_name, key->wk_keyix, key->wk_keylen,
239e91abc172c1397b1e94869c5d0e8ab67bfc22hx key->wk_flags);
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc return (0);
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc }
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc if (key->wk_keyix == IEEE80211_KEYIX_NONE) {
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc ieee80211_dbg(IEEE80211_MSG_CRYPTO, "ieee80211_crypto_setkey: "
239e91abc172c1397b1e94869c5d0e8ab67bfc22hx "no key index; should not happen!\n");
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc return (0);
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc }
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc return (DEV_KEY_SET(ic, key, macaddr));
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc}
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc/*
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc * Return the transmit key to use in sending a frame.
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc */
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxcstruct ieee80211_key *
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxcieee80211_crypto_getkey(ieee80211com_t *ic)
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc{
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc if (ic->ic_def_txkey == IEEE80211_KEYIX_NONE ||
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc KEY_UNDEFINED(ic->ic_nw_keys[ic->ic_def_txkey]))
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc return (NULL);
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc return (&ic->ic_nw_keys[ic->ic_def_txkey]);
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc}
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxcuint8_t
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxcieee80211_crypto_getciphertype(ieee80211com_t *ic)
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc{
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc struct ieee80211_key *key;
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc uint32_t cipher;
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc static const uint8_t ciphermap[] = {
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc WIFI_SEC_WEP, /* IEEE80211_CIPHER_WEP */
a399b7655a1d835aa8606c2b29e4e777baac8635zf WIFI_SEC_WPA, /* IEEE80211_CIPHER_TKIP */
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc (uint8_t)-1, /* IEEE80211_CIPHER_AES_OCB */
a399b7655a1d835aa8606c2b29e4e777baac8635zf WIFI_SEC_WPA, /* IEEE80211_CIPHER_AES_CCM */
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc (uint8_t)-1, /* IEEE80211_CIPHER_CKIP */
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc WIFI_SEC_NONE, /* IEEE80211_CIPHER_NONE */
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc };
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc if ((ic->ic_flags & IEEE80211_F_PRIVACY) == 0)
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc return (WIFI_SEC_NONE);
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc key = ieee80211_crypto_getkey(ic);
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc if (key == NULL)
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc return (WIFI_SEC_NONE);
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc cipher = key->wk_cipher->ic_cipher;
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc ASSERT(cipher < IEEE80211_N(ciphermap));
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc return (ciphermap[cipher]);
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc}
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc/*
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc * Add privacy headers appropriate for the specified key.
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc */
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxcstruct ieee80211_key *
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxcieee80211_crypto_encap(ieee80211com_t *ic, mblk_t *mp)
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc{
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc struct ieee80211_key *k;
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc const struct ieee80211_cipher *cip;
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc uint8_t keyix;
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc if (ic->ic_def_txkey == IEEE80211_KEYIX_NONE) {
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc ieee80211_dbg(IEEE80211_MSG_CRYPTO,
239e91abc172c1397b1e94869c5d0e8ab67bfc22hx "ieee80211_crypto_encap: %s",
239e91abc172c1397b1e94869c5d0e8ab67bfc22hx " No default xmit key for frame\n");
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc return (NULL);
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc }
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc keyix = ic->ic_def_txkey;
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc k = &ic->ic_nw_keys[ic->ic_def_txkey];
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc cip = k->wk_cipher;
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc return (cip->ic_encap(k, mp, keyix<<6) ? k : NULL);
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc}
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc/*
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc * Validate and strip privacy headers (and trailer) for a
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc * received frame that has the WEP/Privacy bit set.
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc */
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxcstruct ieee80211_key *
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxcieee80211_crypto_decap(ieee80211com_t *ic, mblk_t *mp, int hdrlen)
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc{
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc struct ieee80211_key *k;
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc const struct ieee80211_cipher *cip;
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc uint8_t *ivp;
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc uint8_t keyid;
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc /* NB: this minimum size data frame could be bigger */
ff3124eff995e6cd8ebd8c6543648e0670920034ff if (MBLKL(mp) < IEEE80211_WEP_MINLEN) {
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc ieee80211_dbg(IEEE80211_MSG_CRYPTO, "ieee80211_crypto_decap:"
239e91abc172c1397b1e94869c5d0e8ab67bfc22hx " WEP data frame too short, len %u\n",
ff3124eff995e6cd8ebd8c6543648e0670920034ff MBLKL(mp));
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc return (NULL);
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc }
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc /*
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc * Locate the key. If unicast and there is no unicast
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc * key then we fall back to the key id in the header.
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc * This assumes unicast keys are only configured when
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc * the key id in the header is meaningless (typically 0).
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc */
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc ivp = mp->b_rptr + hdrlen;
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc keyid = ivp[IEEE80211_WEP_IVLEN];
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc k = &ic->ic_nw_keys[keyid >> 6];
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc /* check to avoid panic when wep is on but key is not set */
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc if (k->wk_cipher == &ieee80211_cipher_none ||
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc k->wk_cipher == NULL)
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc return (NULL);
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc cip = k->wk_cipher;
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc return ((cip->ic_decap)(k, mp, hdrlen) ? k : NULL);
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc}
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc/*
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc * Setup crypto support.
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc */
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxcvoid
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxcieee80211_crypto_attach(ieee80211com_t *ic)
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc{
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc struct ieee80211_crypto_state *cs = &ic->ic_crypto;
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc int i;
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc
3a1a8936dac0ebe7e956fa122b0b0d15e62d4108zf (void) crypto_mech2id(SUN_CKM_RC4); /* Load RC4 */
3a1a8936dac0ebe7e956fa122b0b0d15e62d4108zf (void) crypto_mech2id(SUN_CKM_AES_CBC); /* Load AES-CBC */
3a1a8936dac0ebe7e956fa122b0b0d15e62d4108zf (void) crypto_mech2id(SUN_CKM_AES_CCM); /* Load AES-CCM */
3a1a8936dac0ebe7e956fa122b0b0d15e62d4108zf
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc /* NB: we assume everything is pre-zero'd */
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc cs->cs_def_txkey = IEEE80211_KEYIX_NONE;
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc for (i = 0; i < IEEE80211_WEP_NKID; i++) {
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc ieee80211_crypto_resetkey(ic, &cs->cs_nw_keys[i],
239e91abc172c1397b1e94869c5d0e8ab67bfc22hx IEEE80211_KEYIX_NONE);
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc }
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc /*
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc * Initialize the driver key support routines to noop entries.
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc * This is useful especially for the cipher test modules.
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc */
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc cs->cs_key_alloc = nulldev_key_alloc;
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc cs->cs_key_set = nulldev_key_set;
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc cs->cs_key_delete = nulldev_key_delete;
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc cs->cs_key_update_begin = nulldev_key_update;
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc cs->cs_key_update_end = nulldev_key_update;
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc
239e91abc172c1397b1e94869c5d0e8ab67bfc22hx ieee80211_crypto_register(ic, &wep);
239e91abc172c1397b1e94869c5d0e8ab67bfc22hx ieee80211_crypto_register(ic, &tkip);
239e91abc172c1397b1e94869c5d0e8ab67bfc22hx ieee80211_crypto_register(ic, &ccmp);
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc}
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc/*
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc * Teardown crypto support.
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc */
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxcvoid
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxcieee80211_crypto_detach(ieee80211com_t *ic)
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc{
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc ieee80211_crypto_delglobalkeys(ic);
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc
239e91abc172c1397b1e94869c5d0e8ab67bfc22hx ieee80211_crypto_unregister(ic, &wep);
239e91abc172c1397b1e94869c5d0e8ab67bfc22hx ieee80211_crypto_unregister(ic, &tkip);
239e91abc172c1397b1e94869c5d0e8ab67bfc22hx ieee80211_crypto_unregister(ic, &ccmp);
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc}
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc/*
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc * Register a crypto cipher module.
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc */
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxcvoid
239e91abc172c1397b1e94869c5d0e8ab67bfc22hxieee80211_crypto_register(ieee80211com_t *ic,
239e91abc172c1397b1e94869c5d0e8ab67bfc22hx const struct ieee80211_cipher *cip)
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc{
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc if (cip->ic_cipher >= IEEE80211_CIPHER_MAX) {
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc ieee80211_err("ieee80211_crypto_register: "
239e91abc172c1397b1e94869c5d0e8ab67bfc22hx "cipher %s has an invalid cipher index %u\n",
239e91abc172c1397b1e94869c5d0e8ab67bfc22hx cip->ic_name, cip->ic_cipher);
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc return;
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc }
239e91abc172c1397b1e94869c5d0e8ab67bfc22hx if (ic->ic_ciphers[cip->ic_cipher] != NULL &&
239e91abc172c1397b1e94869c5d0e8ab67bfc22hx ic->ic_ciphers[cip->ic_cipher] != cip) {
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc ieee80211_err("ieee80211_crypto_register: "
239e91abc172c1397b1e94869c5d0e8ab67bfc22hx "cipher %s registered with a different template\n",
239e91abc172c1397b1e94869c5d0e8ab67bfc22hx cip->ic_name);
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc return;
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc }
239e91abc172c1397b1e94869c5d0e8ab67bfc22hx ic->ic_ciphers[cip->ic_cipher] = cip;
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc}
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc/*
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc * Unregister a crypto cipher module.
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc */
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxcvoid
239e91abc172c1397b1e94869c5d0e8ab67bfc22hxieee80211_crypto_unregister(ieee80211com_t *ic,
239e91abc172c1397b1e94869c5d0e8ab67bfc22hx const struct ieee80211_cipher *cip)
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc{
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc if (cip->ic_cipher >= IEEE80211_CIPHER_MAX) {
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc ieee80211_err("ieee80211_crypto_unregister: "
239e91abc172c1397b1e94869c5d0e8ab67bfc22hx "cipher %s has an invalid cipher index %u\n",
239e91abc172c1397b1e94869c5d0e8ab67bfc22hx cip->ic_name, cip->ic_cipher);
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc return;
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc }
239e91abc172c1397b1e94869c5d0e8ab67bfc22hx if (ic->ic_ciphers[cip->ic_cipher] != NULL &&
239e91abc172c1397b1e94869c5d0e8ab67bfc22hx ic->ic_ciphers[cip->ic_cipher] != cip) {
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc ieee80211_err("ieee80211_crypto_unregister: "
239e91abc172c1397b1e94869c5d0e8ab67bfc22hx "cipher %s registered with a different template\n",
239e91abc172c1397b1e94869c5d0e8ab67bfc22hx cip->ic_name);
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc return;
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc }
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc /* NB: don't complain about not being registered */
239e91abc172c1397b1e94869c5d0e8ab67bfc22hx ic->ic_ciphers[cip->ic_cipher] = NULL;
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc}