70ff509d20
ieee80211.c: add_chanlist(): 'error' variable will be uninitialized if no channels were passed; return '0' instead. ieee80211_action.c: ieee80211_send_action_register(): drop 'break' after 'return'. ieee80211_crypto_none.c: none_encap(): 'keyid' is not used in non-debug builds; hide it behind IEEE80211_DEBUG ifdef. ieee80211_freebsd.c: Staticize global 'ieee80211_debug' variable (used only in this file). ieee80211_hostap.c: Fix a comment (associatio -> association). ieee80211_ht.c: ieee80211_setup_htrates(): initialize 'maxunequalmcs' to 0 to mute compiler warning. ieee80211_hwmp.c: hwmp_recv_preq(): copy 'prep' between conditional blocks to fix -Wshadow warning. ieee80211_mesh.c: mesh_newstate(): remove duplicate 'ni' definition. mesh_recv_group_data(): fix -Wempty-body warning in non-debug builds. ieee80211_phy.c: ieee80211_compute_duration(): remove 'break' after panic() call. ieee80211_scan_sta.c: Hide some TDMA-specific macros under IEEE80211_SUPPORT_TDMA ifdef adhoc_pick_bss(): remove 'ic' pointer redefinition. ieee80211_sta.c: sta_beacon_miss(): remove 'ic' pointer redefinition. ieee80211_superg.c: superg_ioctl_set80211(): drop unreachable return. Tested with clang 3.8.0, gcc 4.6.4 and gcc 5.3.0.
156 lines
4.3 KiB
C
156 lines
4.3 KiB
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("$FreeBSD$");
|
|
|
|
/*
|
|
* IEEE 802.11 NULL crypto support.
|
|
*/
|
|
#include "opt_wlan.h"
|
|
|
|
#include <sys/param.h>
|
|
#include <sys/kernel.h>
|
|
#include <sys/malloc.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 void none_setiv(struct ieee80211_key *, uint8_t *);
|
|
static int none_encap(struct ieee80211_key *, struct mbuf *);
|
|
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_setiv = none_setiv,
|
|
.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 void
|
|
none_setiv(struct ieee80211_key *k, uint8_t *ivp)
|
|
{
|
|
}
|
|
|
|
static int
|
|
none_encap(struct ieee80211_key *k, struct mbuf *m)
|
|
{
|
|
struct ieee80211vap *vap = k->wk_private;
|
|
#ifdef IEEE80211_DEBUG
|
|
struct ieee80211_frame *wh = mtod(m, struct ieee80211_frame *);
|
|
uint8_t keyid;
|
|
|
|
keyid = ieee80211_crypto_get_keyid(vap, k);
|
|
|
|
/*
|
|
* 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);
|
|
#endif
|
|
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;
|
|
}
|