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Add support for WEP functionality.

Browse Source 
Add support for wi(4) compatible configuration interface.  It enables
wicontrol(8) to configure some 802.11 specific parameters.
Some minor fixes from NetBSD.
Obtained from:  NetBSD current
This commit is contained in:
Atsushi Onoe 2000-08-14 13:42:38 +00:00
parent 853f381335
commit 3b65d03e0a
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=64640
4 changed files with 1630 additions and 370 deletions
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794
sys/dev/awi/awi.c
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530
sys/dev/awi/awi_wep.c Normal file
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/* $NetBSD: awi_wep.c,v 1.4 2000/08/14 11:28:03 onoe Exp $ */
/* $FreeBSD$ */
/*
* Copyright (c) 2000 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Atsushi Onoe.
*
* 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.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the NetBSD
* Foundation, Inc. and its contributors.
* 4. Neither the name of The NetBSD Foundation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``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 FOUNDATION OR CONTRIBUTORS
* 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.
*/
/*
* WEP support framework for the awi driver.
*
* No actual encryption capability is provided here, but any can be added
* to awi_wep_algo table below.
*
* Note that IEEE802.11 specification states WEP uses RC4 with 40bit key,
* which is a proprietary encryption algorithm available under license
* from RSA Data Security Inc. Using another algorithm, includes null
* encryption provided here, the awi driver cannot be able to communicate
* with other stations.
*/
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/mbuf.h>
#include <sys/malloc.h>
#include <sys/proc.h>
#include <sys/socket.h>
#include <sys/errno.h>
#include <sys/sockio.h>
#if defined(__FreeBSD__) && __FreeBSD__ >= 4
#include <sys/bus.h>
#else
#include <sys/device.h>
#endif
#include <net/if.h>
#include <net/if_dl.h>
#ifdef __FreeBSD__
#include <net/ethernet.h>
#include <net/if_arp.h>
#else
#include <net/if_ether.h>
#endif
#include <net/if_media.h>
#include <net/if_ieee80211.h>
#include <machine/cpu.h>
#include <machine/bus.h>
#ifdef __FreeBSD__
#include <machine/clock.h>
#endif
#ifdef __NetBSD__
#include <dev/ic/am79c930reg.h>
#include <dev/ic/am79c930var.h>
#include <dev/ic/awireg.h>
#include <dev/ic/awivar.h>
#include <crypto/arc4/arc4.h>
#endif
#ifdef __FreeBSD__
#include <dev/awi/am79c930reg.h>
#include <dev/awi/am79c930var.h>
#include <dev/awi/awireg.h>
#include <dev/awi/awivar.h>
#include <crypto/rc4/rc4.h>
static __inline int
arc4_ctxlen(void)
{
return sizeof(struct rc4_state);
}
static __inline void
arc4_setkey(void *ctx, u_int8_t *key, int keylen)
{
rc4_init(ctx, key, keylen);
}
static __inline void
arc4_encrypt(void *ctx, u_int8_t *dst, u_int8_t *src, int len)
{
rc4_crypt(ctx, src, dst, len);
}
#endif
static void awi_crc_init __P((void));
static u_int32_t awi_crc_update __P((u_int32_t crc, u_int8_t *buf, int len));
static int awi_null_ctxlen __P((void));
static void awi_null_setkey __P((void *ctx, u_int8_t *key, int keylen));
static void awi_null_copy __P((void *ctx, u_int8_t *dst, u_int8_t *src, int len));
/* XXX: the order should be known to wiconfig/user */
static struct awi_wep_algo awi_wep_algo[] = {
/* 0: no wep */
{ "no" }, /* dummy for no wep */
/* 1: normal wep (arc4) */
{ "arc4", arc4_ctxlen, arc4_setkey,
arc4_encrypt, arc4_encrypt },
/* 2: debug wep (null) */
{ "null", awi_null_ctxlen, awi_null_setkey,
awi_null_copy, awi_null_copy },
/* dummy for wep without encryption */
};
int
awi_wep_setnwkey(sc, nwkey)
struct awi_softc *sc;
struct ieee80211_nwkey *nwkey;
{
int i, len, error;
u_int8_t keybuf[AWI_MAX_KEYLEN];
if (nwkey->i_defkid <= 0 ||
nwkey->i_defkid > IEEE80211_WEP_NKID)
return EINVAL;
error = 0;
for (i = 0; i < IEEE80211_WEP_NKID; i++) {
if (nwkey->i_key[i].i_keydat == NULL)
continue;
len = nwkey->i_key[i].i_keylen;
if (len > sizeof(keybuf)) {
error = EINVAL;
break;
}
error = copyin(nwkey->i_key[i].i_keydat, keybuf, len);
if (error)
break;
error = awi_wep_setkey(sc, i, keybuf, len);
if (error)
break;
}
if (error == 0) {
sc->sc_wep_defkid = nwkey->i_defkid - 1;
error = awi_wep_setalgo(sc, nwkey->i_wepon);
if (error == 0 && sc->sc_enabled) {
awi_stop(sc);
error = awi_init(sc);
}
}
return error;
}
int
awi_wep_getnwkey(sc, nwkey)
struct awi_softc *sc;
struct ieee80211_nwkey *nwkey;
{
int i, len, error, suerr;
u_int8_t keybuf[AWI_MAX_KEYLEN];
nwkey->i_wepon = awi_wep_getalgo(sc);
nwkey->i_defkid = sc->sc_wep_defkid + 1;
/* do not show any keys to non-root user */
#ifdef __FreeBSD__
suerr = suser(curproc);
#else
suerr = suser(curproc->p_ucred, &curproc->p_acflag);
#endif
error = 0;
for (i = 0; i < IEEE80211_WEP_NKID; i++) {
if (nwkey->i_key[i].i_keydat == NULL)
continue;
if (suerr) {
error = suerr;
break;
}
len = sizeof(keybuf);
error = awi_wep_getkey(sc, i, keybuf, &len);
if (error)
break;
if (nwkey->i_key[i].i_keylen < len) {
error = ENOSPC;
break;
}
nwkey->i_key[i].i_keylen = len;
error = copyout(keybuf, nwkey->i_key[i].i_keydat, len);
if (error)
break;
}
return error;
}
int
awi_wep_getalgo(sc)
struct awi_softc *sc;
{
if (sc->sc_wep_algo == NULL)
return 0;
return sc->sc_wep_algo - awi_wep_algo;
}
int
awi_wep_setalgo(sc, algo)
struct awi_softc *sc;
int algo;
{
struct awi_wep_algo *awa;
int ctxlen;
awi_crc_init(); /* XXX: not belongs here */
if (algo < 0 || algo > sizeof(awi_wep_algo)/sizeof(awi_wep_algo[0]))
return EINVAL;
awa = &awi_wep_algo[algo];
if (awa->awa_name == NULL)
return EINVAL;
if (awa->awa_ctxlen == NULL) {
awa = NULL;
ctxlen = 0;
} else
ctxlen = awa->awa_ctxlen();
if (sc->sc_wep_ctx != NULL) {
free(sc->sc_wep_ctx, M_DEVBUF);
sc->sc_wep_ctx = NULL;
}
if (ctxlen) {
sc->sc_wep_ctx = malloc(ctxlen, M_DEVBUF, M_NOWAIT);
if (sc->sc_wep_ctx == NULL)
return ENOMEM;
}
sc->sc_wep_algo = awa;
return 0;
}
int
awi_wep_setkey(sc, kid, key, keylen)
struct awi_softc *sc;
int kid;
unsigned char *key;
int keylen;
{
if (kid < 0 || kid >= IEEE80211_WEP_NKID)
return EINVAL;
if (keylen < 0 || keylen + IEEE80211_WEP_IVLEN > AWI_MAX_KEYLEN)
return EINVAL;
sc->sc_wep_keylen[kid] = keylen;
if (keylen > 0)
memcpy(sc->sc_wep_key[kid] + IEEE80211_WEP_IVLEN, key, keylen);
return 0;
}
int
awi_wep_getkey(sc, kid, key, keylen)
struct awi_softc *sc;
int kid;
unsigned char *key;
int *keylen;
{
if (kid < 0 || kid >= IEEE80211_WEP_NKID)
return EINVAL;
if (*keylen < sc->sc_wep_keylen[kid])
return ENOSPC;
*keylen = sc->sc_wep_keylen[kid];
if (*keylen > 0)
memcpy(key, sc->sc_wep_key[kid] + IEEE80211_WEP_IVLEN, *keylen);
return 0;
}
struct mbuf *
awi_wep_encrypt(sc, m0, txflag)
struct awi_softc *sc;
struct mbuf *m0;
int txflag;
{
struct mbuf *m, *n, *n0;
struct ieee80211_frame *wh;
struct awi_wep_algo *awa;
int left, len, moff, noff, keylen, kid;
u_int32_t iv, crc;
u_int8_t *key, *ivp;
void *ctx;
u_int8_t crcbuf[IEEE80211_WEP_CRCLEN];
n0 = NULL;
awa = sc->sc_wep_algo;
if (awa == NULL)
goto fail;
ctx = sc->sc_wep_ctx;
m = m0;
left = m->m_pkthdr.len;
MGET(n, M_DONTWAIT, m->m_type);
n0 = n;
if (n == NULL)
goto fail;
M_COPY_PKTHDR(n, m);
len = IEEE80211_WEP_IVLEN + IEEE80211_WEP_KIDLEN + IEEE80211_WEP_CRCLEN;
if (txflag) {
n->m_pkthdr.len += len;
} else {
n->m_pkthdr.len -= len;
left -= len;
}
n->m_len = MHLEN;
if (n->m_pkthdr.len >= MINCLSIZE) {
MCLGET(n, M_DONTWAIT);
if (n->m_flags & M_EXT)
n->m_len = n->m_ext.ext_size;
}
len = sizeof(struct ieee80211_frame);
memcpy(mtod(n, caddr_t), mtod(m, caddr_t), len);
left -= len;
moff = len;
noff = len;
if (txflag) {
kid = sc->sc_wep_defkid;
wh = mtod(n, struct ieee80211_frame *);
wh->i_fc[1] |= IEEE80211_FC1_WEP;
iv = random();
/*
* store IV, byte order is not the matter since it's random.
* assuming IEEE80211_WEP_IVLEN is 3
*/
ivp = mtod(n, u_int8_t *) + noff;
ivp[0] = (iv >> 16) & 0xff;
ivp[1] = (iv >> 8) & 0xff;
ivp[2] = iv & 0xff;
ivp[3] = kid & 0x03; /* clear pad and keyid */
noff += IEEE80211_WEP_IVLEN + IEEE80211_WEP_KIDLEN;
} else {
ivp = mtod(m, u_int8_t *) + moff;
moff += IEEE80211_WEP_IVLEN + IEEE80211_WEP_KIDLEN;
kid = ivp[IEEE80211_WEP_IVLEN] & 0x03;
}
key = sc->sc_wep_key[kid];
keylen = sc->sc_wep_keylen[kid];
/* assuming IEEE80211_WEP_IVLEN is 3 */
key[0] = ivp[0];
key[1] = ivp[1];
key[2] = ivp[2];
awa->awa_setkey(ctx, key, IEEE80211_WEP_IVLEN + keylen);
/* encrypt with calculating CRC */
crc = ~0;
while (left > 0) {
len = m->m_len - moff;
if (len == 0) {
m = m->m_next;
moff = 0;
continue;
}
if (len > n->m_len - noff) {
len = n->m_len - noff;
if (len == 0) {
MGET(n->m_next, M_DONTWAIT, n->m_type);
if (n->m_next == NULL)
goto fail;
n = n->m_next;
n->m_len = MLEN;
if (left >= MINCLSIZE) {
MCLGET(n, M_DONTWAIT);
if (n->m_flags & M_EXT)
n->m_len = n->m_ext.ext_size;
}
noff = 0;
continue;
}
}
if (len > left)
len = left;
if (txflag) {
awa->awa_encrypt(ctx, mtod(n, caddr_t) + noff,
mtod(m, caddr_t) + moff, len);
crc = awi_crc_update(crc, mtod(m, caddr_t) + moff, len);
} else {
awa->awa_decrypt(ctx, mtod(n, caddr_t) + noff,
mtod(m, caddr_t) + moff, len);
crc = awi_crc_update(crc, mtod(n, caddr_t) + noff, len);
}
left -= len;
moff += len;
noff += len;
}
crc = ~crc;
if (txflag) {
LE_WRITE_4(crcbuf, crc);
if (n->m_len >= noff + sizeof(crcbuf))
n->m_len = noff + sizeof(crcbuf);
else {
n->m_len = noff;
MGET(n->m_next, M_DONTWAIT, n->m_type);
if (n->m_next == NULL)
goto fail;
n = n->m_next;
n->m_len = sizeof(crcbuf);
noff = 0;
}
awa->awa_encrypt(ctx, mtod(n, caddr_t) + noff, crcbuf,
sizeof(crcbuf));
} else {
n->m_len = noff;
for (noff = 0; noff < sizeof(crcbuf); noff += len) {
len = sizeof(crcbuf) - noff;
if (len > m->m_len - moff)
len = m->m_len - moff;
if (len > 0)
awa->awa_decrypt(ctx, crcbuf + noff,
mtod(m, caddr_t) + moff, len);
m = m->m_next;
moff = 0;
}
if (crc != LE_READ_4(crcbuf))
goto fail;
}
m_freem(m0);
return n0;
fail:
m_freem(m0);
m_freem(n0);
return NULL;
}
/*
* CRC 32 -- routine from RFC 2083
*/
/* Table of CRCs of all 8-bit messages */
static u_int32_t awi_crc_table[256];
static int awi_crc_table_computed = 0;
/* Make the table for a fast CRC. */
static void
awi_crc_init()
{
u_int32_t c;
int n, k;
if (awi_crc_table_computed)
return;
for (n = 0; n < 256; n++) {
c = (u_int32_t)n;
for (k = 0; k < 8; k++) {
if (c & 1)
c = 0xedb88320UL ^ (c >> 1);
else
c = c >> 1;
}
awi_crc_table[n] = c;
}
awi_crc_table_computed = 1;
}
/*
* Update a running CRC with the bytes buf[0..len-1]--the CRC
* should be initialized to all 1's, and the transmitted value
* is the 1's complement of the final running CRC
*/
static u_int32_t
awi_crc_update(crc, buf, len)
u_int32_t crc;
u_int8_t *buf;
int len;
{
u_int8_t *endbuf;
for (endbuf = buf + len; buf < endbuf; buf++)
crc = awi_crc_table[(crc ^ *buf) & 0xff] ^ (crc >> 8);
return crc;
}
/*
* Null -- do nothing but copy.
*/
static int
awi_null_ctxlen()
{
return 0;
}
static void
awi_null_setkey(ctx, key, keylen)
void *ctx;
u_char *key;
int keylen;
{
}
static void
awi_null_copy(ctx, dst, src, len)
void *ctx;
u_char *dst;
u_char *src;
int len;
{
memcpy(dst, src, len);
}

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sys/dev/awi/awi_wicfg.c Normal file
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/* $NetBSD: awi_wicfg.c,v 1.3 2000/07/06 17:22:25 onoe Exp $ */
/* $FreeBSD$ */
/*
* Copyright (c) 2000 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Atsushi Onoe.
*
* 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.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the NetBSD
* Foundation, Inc. and its contributors.
* 4. Neither the name of The NetBSD Foundation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``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 FOUNDATION OR CONTRIBUTORS
* 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.
*/
/*
* WaveLAN compatible configuration support routines for the awi driver.
*/
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/mbuf.h>
#include <sys/malloc.h>
#include <sys/proc.h>
#include <sys/socket.h>
#include <sys/errno.h>
#include <sys/sockio.h>
#if defined(__FreeBSD__) && __FreeBSD__ >= 4
#include <sys/bus.h>
#else
#include <sys/device.h>
#endif
#include <net/if.h>
#include <net/if_dl.h>
#ifdef __FreeBSD__
#include <net/ethernet.h>
#include <net/if_arp.h>
#else
#include <net/if_ether.h>
#endif
#include <net/if_media.h>
#include <net/if_ieee80211.h>
#include <machine/cpu.h>
#include <machine/bus.h>
#ifdef __FreeBSD__
#include <machine/clock.h>
#endif
#ifdef __NetBSD__
#include <dev/ic/am79c930reg.h>
#include <dev/ic/am79c930var.h>
#include <dev/ic/awireg.h>
#include <dev/ic/awivar.h>
#include <dev/pcmcia/if_wi_ieee.h> /* XXX */
#endif
#ifdef __FreeBSD__
#include <dev/awi/am79c930reg.h>
#include <dev/awi/am79c930var.h>
#undef _KERNEL /* XXX */
#include <i386/include/if_wavelan_ieee.h> /* XXX */
#define _KERNEL /* XXX */
#include <dev/awi/awireg.h>
#include <dev/awi/awivar.h>
#endif
static int awi_cfgget __P((struct ifnet *ifp, u_long cmd, caddr_t data));
static int awi_cfgset __P((struct ifnet *ifp, u_long cmd, caddr_t data));
int
awi_wicfg(ifp, cmd, data)
struct ifnet *ifp;
u_long cmd;
caddr_t data;
{
int error;
switch (cmd) {
case SIOCGWAVELAN:
error = awi_cfgget(ifp, cmd, data);
break;
case SIOCSWAVELAN:
#ifdef __FreeBSD__
error = suser(curproc);
#else
error = suser(curproc->p_ucred, &curproc->p_acflag);
#endif
if (error)
break;
error = awi_cfgset(ifp, cmd, data);
break;
default:
error = EINVAL;
break;
}
return error;
}
static int
awi_cfgget(ifp, cmd, data)
struct ifnet *ifp;
u_long cmd;
caddr_t data;
{
int i, error, keylen;
char *p;
struct awi_softc *sc = (struct awi_softc *)ifp->if_softc;
struct ifreq *ifr = (struct ifreq *)data;
struct wi_ltv_keys *keys;
struct wi_key *k;
struct wi_req wreq;
#ifdef WICACHE
struct wi_sigcache wsc;
struct awi_bss *bp;
#endif /* WICACHE */
error = copyin(ifr->ifr_data, &wreq, sizeof(wreq));
if (error)
return error;
switch (wreq.wi_type) {
case WI_RID_SERIALNO:
memcpy(wreq.wi_val, sc->sc_banner, AWI_BANNER_LEN);
wreq.wi_len = (AWI_BANNER_LEN + 1) / 2;
break;
case WI_RID_NODENAME:
strcpy((char *)&wreq.wi_val[1], hostname);
wreq.wi_val[0] = strlen(hostname);
wreq.wi_len = (1 + wreq.wi_val[0] + 1) / 2;
break;
case WI_RID_OWN_SSID:
p = sc->sc_ownssid;
wreq.wi_val[0] = p[1];
memcpy(&wreq.wi_val[1], p + 2, p[1]);
wreq.wi_len = (1 + wreq.wi_val[0] + 1) / 2;
break;
case WI_RID_CURRENT_SSID:
if (ifp->if_flags & IFF_RUNNING) {
p = sc->sc_bss.essid;
wreq.wi_val[0] = p[1];
memcpy(&wreq.wi_val[1], p + 2, p[1]);
} else {
wreq.wi_val[0] = 0;
wreq.wi_val[1] = '\0';
}
wreq.wi_len = (1 + wreq.wi_val[0] + 1) / 2;
break;
case WI_RID_DESIRED_SSID:
p = sc->sc_mib_mac.aDesired_ESS_ID;
wreq.wi_val[0] = p[1];
memcpy(&wreq.wi_val[1], p + 2, p[1]);
wreq.wi_len = (1 + wreq.wi_val[0] + 1) / 2;
break;
case WI_RID_CURRENT_BSSID:
if (ifp->if_flags & IFF_RUNNING)
memcpy(wreq.wi_val, sc->sc_bss.bssid, ETHER_ADDR_LEN);
else
memset(wreq.wi_val, 0, ETHER_ADDR_LEN);
wreq.wi_len = ETHER_ADDR_LEN / 2;
break;
case WI_RID_CHANNEL_LIST:
if (sc->sc_mib_phy.IEEE_PHY_Type == AWI_PHY_TYPE_FH) {
wreq.wi_val[0] = sc->sc_scan_min;
wreq.wi_val[1] = sc->sc_scan_max;
wreq.wi_len = 2;
} else {
wreq.wi_val[0] = 0;
for (i = sc->sc_scan_min; i <= sc->sc_scan_max; i++)
wreq.wi_val[0] |= 1 << (i - 1);
wreq.wi_len = 1;
}
break;
case WI_RID_OWN_CHNL:
wreq.wi_val[0] = sc->sc_ownch;
wreq.wi_len = 1;
break;
case WI_RID_CURRENT_CHAN:
if (sc->sc_mib_phy.IEEE_PHY_Type == AWI_PHY_TYPE_FH)
wreq.wi_val[0] = sc->sc_bss.pattern;
else
wreq.wi_val[0] = sc->sc_bss.chanset;
wreq.wi_len = 1;
break;
case WI_RID_COMMS_QUALITY:
wreq.wi_val[0] = 0; /* quality */
wreq.wi_val[1] = sc->sc_bss.rssi; /* signal */
wreq.wi_val[2] = 0; /* noise */
wreq.wi_len = 3;
break;
case WI_RID_PROMISC:
wreq.wi_val[0] = sc->sc_mib_mac.aPromiscuous_Enable;
wreq.wi_len = 1;
break;
case WI_RID_PORTTYPE:
if (sc->sc_mib_local.Network_Mode)
wreq.wi_val[0] = 1;
else if (!sc->sc_no_bssid)
wreq.wi_val[0] = 2;
else
wreq.wi_val[0] = 3;
wreq.wi_len = 1;
break;
case WI_RID_MAC_NODE:
memcpy(wreq.wi_val, sc->sc_mib_addr.aMAC_Address,
ETHER_ADDR_LEN);
wreq.wi_len = ETHER_ADDR_LEN / 2;
break;
case WI_RID_TX_RATE:
case WI_RID_CUR_TX_RATE:
wreq.wi_val[0] = sc->sc_tx_rate / 10;
wreq.wi_len = 1;
break;
case WI_RID_RTS_THRESH:
wreq.wi_val[0] = LE_READ_2(&sc->sc_mib_mac.aRTS_Threshold);
wreq.wi_len = 1;
break;
case WI_RID_CREATE_IBSS:
wreq.wi_val[0] = sc->sc_start_bss;
wreq.wi_len = 1;
break;
case WI_RID_SYSTEM_SCALE:
wreq.wi_val[0] = 1; /* low density ... not supported */
wreq.wi_len = 1;
break;
case WI_RID_PM_ENABLED:
wreq.wi_val[0] = sc->sc_mib_local.Power_Saving_Mode_Dis ? 0 : 1;
wreq.wi_len = 1;
break;
case WI_RID_MAX_SLEEP:
wreq.wi_val[0] = 0; /* not implemented */
wreq.wi_len = 1;
break;
case WI_RID_WEP_AVAIL:
wreq.wi_val[0] = 1;
wreq.wi_len = 1;
break;
case WI_RID_ENCRYPTION:
wreq.wi_val[0] = awi_wep_getalgo(sc);
wreq.wi_len = 1;
break;
case WI_RID_TX_CRYPT_KEY:
wreq.wi_val[0] = sc->sc_wep_defkid;
wreq.wi_len = 1;
break;
case WI_RID_DEFLT_CRYPT_KEYS:
keys = (struct wi_ltv_keys *)&wreq;
/* do not show keys to non-root user */
#ifdef __FreeBSD__
error = suser(curproc);
#else
error = suser(curproc->p_ucred, &curproc->p_acflag);
#endif
if (error) {
memset(keys, 0, sizeof(*keys));
error = 0;
break;
}
for (i = 0; i < IEEE80211_WEP_NKID; i++) {
k = &keys->wi_keys[i];
keylen = sizeof(k->wi_keydat);
error = awi_wep_getkey(sc, i, k->wi_keydat, &keylen);
if (error)
break;
k->wi_keylen = keylen;
}
wreq.wi_len = sizeof(*keys) / 2;
break;
case WI_RID_MAX_DATALEN:
wreq.wi_val[0] = LE_READ_2(&sc->sc_mib_mac.aMax_Frame_Length);
wreq.wi_len = 1;
break;
case WI_RID_IFACE_STATS:
/* not implemented yet */
wreq.wi_len = 0;
break;
#ifdef WICACHE
case WI_RID_READ_CACHE:
for (bp = TAILQ_FIRST(&sc->sc_scan), i = 0;
bp != NULL && i < MAXWICACHE;
bp = TAILQ_NEXT(bp, list), i++) {
memcpy(wsc.macsrc, bp->esrc, ETHER_ADDR_LEN);
/*XXX*/
memcpy(&wsc.ipsrc, bp->bssid, sizeof(wsc.ipsrc));
wsc.signal = bp->rssi;
wsc.noise = 0;
wsc.quality = 0;
memcpy((caddr_t)wreq.wi_val + sizeof(wsc) * i,
&wsc, sizeof(wsc));
}
wreq.wi_len = sizeof(wsc) * i / 2;
break;
#endif /* WICACHE */
default:
error = EINVAL;
break;
}
if (error == 0) {
wreq.wi_len++;
error = copyout(&wreq, ifr->ifr_data, sizeof(wreq));
}
return error;
}
static int
awi_cfgset(ifp, cmd, data)
struct ifnet *ifp;
u_long cmd;
caddr_t data;
{
int i, error, rate, oregion;
u_int8_t *phy_rates;
struct awi_softc *sc = (struct awi_softc *)ifp->if_softc;
struct ifreq *ifr = (struct ifreq *)data;
struct wi_ltv_keys *keys;
struct wi_key *k;
struct wi_req wreq;
error = copyin(ifr->ifr_data, &wreq, sizeof(wreq));
if (error)
return error;
if (wreq.wi_len-- < 1)
return EINVAL;
switch (wreq.wi_type) {
case WI_RID_SERIALNO:
case WI_RID_NODENAME:
error = EPERM;
break;
case WI_RID_OWN_SSID:
if (wreq.wi_len < (1 + wreq.wi_val[0] + 1) / 2) {
error = EINVAL;
break;
}
if (wreq.wi_val[0] > IEEE80211_NWID_LEN) {
error = EINVAL;
break;
}
memset(sc->sc_ownssid, 0, AWI_ESS_ID_SIZE);
sc->sc_ownssid[0] = IEEE80211_ELEMID_SSID;
sc->sc_ownssid[1] = wreq.wi_val[0];
memcpy(&sc->sc_ownssid[2], &wreq.wi_val[1], wreq.wi_val[0]);
if (!sc->sc_mib_local.Network_Mode &&
!sc->sc_no_bssid && sc->sc_start_bss)
error = ENETRESET;
break;
case WI_RID_CURRENT_SSID:
error = EPERM;
break;
case WI_RID_DESIRED_SSID:
if (wreq.wi_len < (1 + wreq.wi_val[0] + 1) / 2) {
error = EINVAL;
break;
}
if (wreq.wi_val[0] > IEEE80211_NWID_LEN) {
error = EINVAL;
break;
}
memset(sc->sc_mib_mac.aDesired_ESS_ID, 0, AWI_ESS_ID_SIZE);
sc->sc_mib_mac.aDesired_ESS_ID[0] = IEEE80211_ELEMID_SSID;
sc->sc_mib_mac.aDesired_ESS_ID[1] = wreq.wi_val[0];
memcpy(&sc->sc_mib_mac.aDesired_ESS_ID[2], &wreq.wi_val[1],
wreq.wi_val[0]);
if (sc->sc_mib_local.Network_Mode || !sc->sc_no_bssid)
error = ENETRESET;
break;
case WI_RID_CURRENT_BSSID:
error = EPERM;
break;
case WI_RID_CHANNEL_LIST:
if (wreq.wi_len != 1) {
error = EINVAL;
break;
}
oregion = sc->sc_mib_phy.aCurrent_Reg_Domain;
if (wreq.wi_val[0] == oregion)
break;
sc->sc_mib_phy.aCurrent_Reg_Domain = wreq.wi_val[0];
error = awi_init_region(sc);
if (error) {
sc->sc_mib_phy.aCurrent_Reg_Domain = oregion;
break;
}
error = ENETRESET;
break;
case WI_RID_OWN_CHNL:
if (wreq.wi_len != 1) {
error = EINVAL;
break;
}
if (wreq.wi_val[0] < sc->sc_scan_min ||
wreq.wi_val[0] > sc->sc_scan_max) {
error = EINVAL;
break;
}
sc->sc_ownch = wreq.wi_val[0];
if (!sc->sc_mib_local.Network_Mode)
error = ENETRESET;
break;
case WI_RID_CURRENT_CHAN:
error = EPERM;
break;
case WI_RID_COMMS_QUALITY:
error = EPERM;
break;
case WI_RID_PROMISC:
if (wreq.wi_len != 1) {
error = EINVAL;
break;
}
if (ifp->if_flags & IFF_PROMISC) {
if (wreq.wi_val[0] == 0) {
ifp->if_flags &= ~IFF_PROMISC;
error = ENETRESET;
}
} else {
if (wreq.wi_val[0] != 0) {
ifp->if_flags |= IFF_PROMISC;
error = ENETRESET;
}
}
break;
case WI_RID_PORTTYPE:
if (wreq.wi_len != 1) {
error = EINVAL;
break;
}
switch (wreq.wi_val[0]) {
case 1:
sc->sc_mib_local.Network_Mode = 1;
sc->sc_no_bssid = 0;
error = ENETRESET;
break;
case 2:
sc->sc_mib_local.Network_Mode = 0;
sc->sc_no_bssid = 0;
error = ENETRESET;
break;
case 3:
if (sc->sc_mib_phy.IEEE_PHY_Type == AWI_PHY_TYPE_FH) {
error = EINVAL;
break;
}
sc->sc_mib_local.Network_Mode = 0;
sc->sc_no_bssid = 1;
error = ENETRESET;
break;
default:
error = EINVAL;
break;
}
break;
case WI_RID_MAC_NODE:
/* XXX: should be implemented? */
error = EPERM;
break;
case WI_RID_TX_RATE:
if (wreq.wi_len != 1) {
error = EINVAL;
break;
}
phy_rates = sc->sc_mib_phy.aSuprt_Data_Rates;
switch (wreq.wi_val[0]) {
case 1:
case 2:
case 5:
case 11:
rate = wreq.wi_val[0] * 10;
if (rate == 50)
rate += 5; /*XXX*/
break;
case 3:
case 6:
case 7:
/* auto rate */
phy_rates = sc->sc_mib_phy.aSuprt_Data_Rates;
rate = AWI_RATE_1MBIT;
for (i = 0; i < phy_rates[1]; i++) {
if (AWI_80211_RATE(phy_rates[2 + i]) > rate)
rate = AWI_80211_RATE(phy_rates[2 + i]);
}
break;
default:
rate = 0;
error = EINVAL;
break;
}
if (error)
break;
for (i = 0; i < phy_rates[1]; i++) {
if (rate == AWI_80211_RATE(phy_rates[2 + i]))
break;
}
if (i == phy_rates[1]) {
error = EINVAL;
break;
}
sc->sc_tx_rate = rate;
break;
case WI_RID_CUR_TX_RATE:
error = EPERM;
break;
case WI_RID_RTS_THRESH:
if (wreq.wi_len != 1) {
error = EINVAL;
break;
}
LE_WRITE_2(&sc->sc_mib_mac.aRTS_Threshold, wreq.wi_val[0]);
error = ENETRESET;
break;
case WI_RID_CREATE_IBSS:
if (wreq.wi_len != 1) {
error = EINVAL;
break;
}
sc->sc_start_bss = wreq.wi_val[0] ? 1 : 0;
error = ENETRESET;
break;
case WI_RID_SYSTEM_SCALE:
if (wreq.wi_len != 1) {
error = EINVAL;
break;
}
if (wreq.wi_val[0] != 1)
error = EINVAL; /* not supported */
break;
case WI_RID_PM_ENABLED:
if (wreq.wi_len != 1) {
error = EINVAL;
break;
}
if (wreq.wi_val[0] != 0)
error = EINVAL; /* not implemented */
break;
case WI_RID_MAX_SLEEP:
error = EINVAL; /* not implemented */
break;
case WI_RID_WEP_AVAIL:
error = EPERM;
break;
case WI_RID_ENCRYPTION:
if (wreq.wi_len != 1) {
error = EINVAL;
break;
}
error = awi_wep_setalgo(sc, wreq.wi_val[0]);
if (error)
break;
error = ENETRESET;
break;
case WI_RID_TX_CRYPT_KEY:
if (wreq.wi_len != 1) {
error = EINVAL;
break;
}
if (wreq.wi_val[0] >= IEEE80211_WEP_NKID) {
error = EINVAL;
break;
}
sc->sc_wep_defkid = wreq.wi_val[1];
break;
case WI_RID_DEFLT_CRYPT_KEYS:
if (wreq.wi_len != sizeof(*keys) / 2) {
error = EINVAL;
break;
}
keys = (struct wi_ltv_keys *)&wreq;
for (i = 0; i < IEEE80211_WEP_NKID; i++) {
k = &keys->wi_keys[i];
error = awi_wep_setkey(sc, i, k->wi_keydat,
k->wi_keylen);
if (error)
break;
}
break;
case WI_RID_MAX_DATALEN:
if (wreq.wi_len != 1) {
error = EINVAL;
break;
}
if (wreq.wi_val[0] < 350 || wreq.wi_val[0] > 2304) {
error = EINVAL;
break;
}
LE_WRITE_2(&sc->sc_mib_mac.aMax_Frame_Length, wreq.wi_val[0]);
break;
case WI_RID_IFACE_STATS:
error = EPERM;
break;
default:
error = EINVAL;
break;
}
if (error == ENETRESET) {
if (sc->sc_enabled) {
awi_stop(sc);
error = awi_init(sc);
} else
error = 0;
}
return error;
}

49
sys/dev/awi/awivar.h
View File

@ -1,12 +1,12 @@
/* $NetBSD: awivar.h,v 1.6 2000/03/22 11:22:22 onoe Exp $ */
/* $NetBSD: awivar.h,v 1.12 2000/07/21 04:48:56 onoe Exp $ */
/* $FreeBSD$ */
/*
* Copyright (c) 2000 The NetBSD Foundation, Inc.
/*-
* Copyright (c) 1999 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Atsushi Onoe
* by Bill Sommerfeld
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
@ -48,6 +48,7 @@
#define AWI_TRANS_TIMEOUT 2000
#define AWI_NTXBUFS 4
#define AWI_MAX_KEYLEN 16
enum awi_status {
AWI_ST_INIT,
@ -70,6 +71,7 @@ struct awi_bss
u_int16_t dwell_time; /* dwell time */
u_int8_t timestamp[8]; /* timestamp of this bss */
u_int8_t bssid[ETHER_ADDR_LEN];
u_int16_t capinfo;
u_int32_t rxtime; /* unit's local time */
u_int16_t interval; /* beacon interval */
u_int8_t txrate;
@ -77,6 +79,14 @@ struct awi_bss
u_int8_t essid[IEEE80211_NWID_LEN + 2];
};
struct awi_wep_algo {
char *awa_name;
int (*awa_ctxlen) __P((void));
void (*awa_setkey) __P((void *, u_char *, int));
void (*awa_encrypt) __P((void *, u_char *, u_char *, int));
void (*awa_decrypt) __P((void *, u_char *, u_char *, int));
};
struct awi_softc
{
#ifdef __NetBSD__
@ -93,7 +103,6 @@ struct awi_softc
struct device sc_dev;
#endif
struct arpcom sc_ec;
struct callout_handle sc_tohandle;
#endif
struct am79c930_softc sc_chip;
struct ifnet *sc_ifp;
@ -106,12 +115,14 @@ struct awi_softc
sc_busy:1,
sc_cansleep:1,
sc_invalid:1,
sc_cmd_inprog:1,
sc_enab_intr:1,
sc_format_llc:1,
sc_start_bss:1,
sc_rawbpf:1,
sc_no_bssid:1,
sc_active_scan:1;
sc_active_scan:1,
sc_attached:1; /* attach has succeeded */
u_int8_t sc_cmd_inprog;
int sc_sleep_cnt;
int sc_mgt_timer;
@ -122,6 +133,8 @@ struct awi_softc
u_int8_t sc_scan_max;
u_int8_t sc_scan_set;
struct awi_bss sc_bss;
u_int8_t sc_ownssid[IEEE80211_NWID_LEN + 2];
u_int8_t sc_ownch;
int sc_rx_timer;
u_int32_t sc_rxdoff;
@ -136,6 +149,13 @@ struct awi_softc
u_int32_t sc_txnext;
u_int32_t sc_txdone;
int sc_wep_keylen[IEEE80211_WEP_NKID]; /* keylen */
u_int8_t sc_wep_key[IEEE80211_WEP_NKID][AWI_MAX_KEYLEN];
int sc_wep_defkid;
void *sc_wep_ctx; /* work area */
struct awi_wep_algo *sc_wep_algo;
u_char sc_banner[AWI_BANNER_LEN];
struct awi_mib_local sc_mib_local;
struct awi_mib_addr sc_mib_addr;
struct awi_mib_mac sc_mib_mac;
@ -185,9 +205,24 @@ void awi_reset __P((struct awi_softc *));
#ifdef __NetBSD__
int awi_activate __P((struct device *, enum devact));
int awi_detach __P((struct awi_softc *));
void awi_power __P((struct awi_softc *, int));
#endif
void awi_stop __P((struct awi_softc *sc));
int awi_init __P((struct awi_softc *sc));
int awi_init_region __P((struct awi_softc *));
int awi_wicfg __P((struct ifnet *, u_long, caddr_t));
int awi_wep_setnwkey __P((struct awi_softc *, struct ieee80211_nwkey *));
int awi_wep_getnwkey __P((struct awi_softc *, struct ieee80211_nwkey *));
int awi_wep_getalgo __P((struct awi_softc *));
int awi_wep_setalgo __P((struct awi_softc *, int));
int awi_wep_setkey __P((struct awi_softc *, int, unsigned char *, int));
int awi_wep_getkey __P((struct awi_softc *, int, unsigned char *, int *));
struct mbuf *awi_wep_encrypt __P((struct awi_softc *, struct mbuf *, int));
#ifdef __FreeBSD__
/* Provide mem* for compat with NetBSD to fix LINT */
static __inline int
memcmp(const void *b1, const void *b2, size_t len)
{