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3b65d03e0a
freebsd-dev/sys/dev/awi/awi_wicfg.c
Atsushi Onoe 3b65d03e0a Add support for WEP functionality. 
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
2000-08-14 13:42:38 +00:00

628 lines
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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;
}
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