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freebsd-dev/sys/net80211/ieee80211_ioctl.c
Sam Leffler a11c9a5cc2 o change ieee80211_new_state handling to use a proper method that drivers 
override in their sub-class; this eliminates the hack of interpreting the
  EINPROGRESS return value to mean "don't do any of the normal work"
o correct active scanning so the first channel is only scanned once and so
  per-channel passive mode is properly honored
o expose 802.11 FSM state names so every driver doesn't keep a private copy
o eliminate node parameter to ieee80211_begin_scan; it was not being used
2003-07-20 21:36:08 +00:00

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/*-
* Copyright (c) 2001 Atsushi Onoe
* Copyright (c) 2002, 2003 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.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* Alternatively, this software may be distributed under the terms of the
* GNU General Public License ("GPL") version 2 as published by the Free
* Software Foundation.
*
* 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 ioctl support (FreeBSD-specific)
*/
#include <sys/endian.h>
#include <sys/param.h>
#include <sys/kernel.h>
#include <sys/socket.h>
#include <sys/sockio.h>
#include <sys/systm.h>
#include <net/if.h>
#include <net/if_arp.h>
#include <net/if_media.h>
#include <net/ethernet.h>
#include <net80211/ieee80211_var.h>
#include <net80211/ieee80211_ioctl.h>
#include <dev/wi/if_wavelan_ieee.h>
/*
* XXX
* Wireless LAN specific configuration interface, which is compatible
* with wicontrol(8).
*/
int
ieee80211_cfgget(struct ifnet *ifp, u_long cmd, caddr_t data)
{
struct ieee80211com *ic = (void *)ifp;
int i, j, error;
struct ifreq *ifr = (struct ifreq *)data;
struct wi_req wreq;
struct wi_ltv_keys *keys;
struct wi_apinfo *ap;
struct ieee80211_node *ni;
struct ieee80211_rateset *rs;
struct wi_sigcache wsc;
struct wi_scan_p2_hdr *p2;
struct wi_scan_res *res;
error = copyin(ifr->ifr_data, &wreq, sizeof(wreq));
if (error)
return error;
wreq.wi_len = 0;
switch (wreq.wi_type) {
case WI_RID_SERIALNO:
/* nothing appropriate */
break;
case WI_RID_NODENAME:
strcpy((char *)&wreq.wi_val[1], hostname);
wreq.wi_val[0] = htole16(strlen(hostname));
wreq.wi_len = (1 + strlen(hostname) + 1) / 2;
break;
case WI_RID_CURRENT_SSID:
if (ic->ic_state != IEEE80211_S_RUN) {
wreq.wi_val[0] = 0;
wreq.wi_len = 1;
break;
}
wreq.wi_val[0] = htole16(ic->ic_bss->ni_esslen);
memcpy(&wreq.wi_val[1], ic->ic_bss->ni_essid,
ic->ic_bss->ni_esslen);
wreq.wi_len = (1 + ic->ic_bss->ni_esslen + 1) / 2;
break;
case WI_RID_OWN_SSID:
case WI_RID_DESIRED_SSID:
wreq.wi_val[0] = htole16(ic->ic_des_esslen);
memcpy(&wreq.wi_val[1], ic->ic_des_essid, ic->ic_des_esslen);
wreq.wi_len = (1 + ic->ic_des_esslen + 1) / 2;
break;
case WI_RID_CURRENT_BSSID:
if (ic->ic_state == IEEE80211_S_RUN)
IEEE80211_ADDR_COPY(wreq.wi_val, ic->ic_bss->ni_bssid);
else
memset(wreq.wi_val, 0, IEEE80211_ADDR_LEN);
wreq.wi_len = IEEE80211_ADDR_LEN / 2;
break;
case WI_RID_CHANNEL_LIST:
memset(wreq.wi_val, 0, sizeof(wreq.wi_val));
/*
* Since channel 0 is not available for DS, channel 1
* is assigned to LSB on WaveLAN.
*/
if (ic->ic_phytype == IEEE80211_T_DS)
i = 1;
else
i = 0;
for (j = 0; i <= IEEE80211_CHAN_MAX; i++, j++)
if (isset(ic->ic_chan_active, i)) {
setbit((u_int8_t *)wreq.wi_val, j);
wreq.wi_len = j / 16 + 1;
}
break;
case WI_RID_OWN_CHNL:
wreq.wi_val[0] = htole16(
ieee80211_chan2ieee(ic, ic->ic_ibss_chan));
wreq.wi_len = 1;
break;
case WI_RID_CURRENT_CHAN:
wreq.wi_val[0] = htole16(
ieee80211_chan2ieee(ic, ic->ic_bss->ni_chan));
wreq.wi_len = 1;
break;
case WI_RID_COMMS_QUALITY:
wreq.wi_val[0] = 0; /* quality */
wreq.wi_val[1] = htole16(ic->ic_bss->ni_rssi); /* signal */
wreq.wi_val[2] = 0; /* noise */
wreq.wi_len = 3;
break;
case WI_RID_PROMISC:
wreq.wi_val[0] = htole16((ifp->if_flags & IFF_PROMISC) ? 1 : 0);
wreq.wi_len = 1;
break;
case WI_RID_PORTTYPE:
wreq.wi_val[0] = htole16(ic->ic_opmode);
wreq.wi_len = 1;
break;
case WI_RID_MAC_NODE:
IEEE80211_ADDR_COPY(wreq.wi_val, ic->ic_myaddr);
wreq.wi_len = IEEE80211_ADDR_LEN / 2;
break;
case WI_RID_TX_RATE:
if (ic->ic_fixed_rate == -1)
wreq.wi_val[0] = 0; /* auto */
else
wreq.wi_val[0] = htole16(
(ic->ic_sup_rates[ic->ic_curmode].rs_rates[ic->ic_fixed_rate] &
IEEE80211_RATE_VAL) / 2);
wreq.wi_len = 1;
break;
case WI_RID_CUR_TX_RATE:
wreq.wi_val[0] = htole16(
(ic->ic_bss->ni_rates.rs_rates[ic->ic_bss->ni_txrate] &
IEEE80211_RATE_VAL) / 2);
wreq.wi_len = 1;
break;
case WI_RID_RTS_THRESH:
wreq.wi_val[0] = htole16(ic->ic_rtsthreshold);
wreq.wi_len = 1;
break;
case WI_RID_CREATE_IBSS:
wreq.wi_val[0] =
htole16((ic->ic_flags & IEEE80211_F_IBSSON) ? 1 : 0);
wreq.wi_len = 1;
break;
case WI_RID_MICROWAVE_OVEN:
wreq.wi_val[0] = 0; /* no ... not supported */
wreq.wi_len = 1;
break;
case WI_RID_ROAMING_MODE:
wreq.wi_val[0] = htole16(1); /* enabled ... not supported */
wreq.wi_len = 1;
break;
case WI_RID_SYSTEM_SCALE:
wreq.wi_val[0] = htole16(1); /* low density ... not supp */
wreq.wi_len = 1;
break;
case WI_RID_PM_ENABLED:
wreq.wi_val[0] =
htole16((ic->ic_flags & IEEE80211_F_PMGTON) ? 1 : 0);
wreq.wi_len = 1;
break;
case WI_RID_MAX_SLEEP:
wreq.wi_val[0] = htole16(ic->ic_lintval);
wreq.wi_len = 1;
break;
case WI_RID_CUR_BEACON_INT:
wreq.wi_val[0] = htole16(ic->ic_bss->ni_intval);
wreq.wi_len = 1;
break;
case WI_RID_WEP_AVAIL:
wreq.wi_val[0] =
htole16((ic->ic_caps & IEEE80211_C_WEP) ? 1 : 0);
wreq.wi_len = 1;
break;
case WI_RID_CNFAUTHMODE:
wreq.wi_val[0] = htole16(1); /* TODO: open system only */
wreq.wi_len = 1;
break;
case WI_RID_ENCRYPTION:
wreq.wi_val[0] =
htole16((ic->ic_flags & IEEE80211_F_WEPON) ? 1 : 0);
wreq.wi_len = 1;
break;
case WI_RID_TX_CRYPT_KEY:
wreq.wi_val[0] = htole16(ic->ic_wep_txkey);
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 */
error = suser(curthread);
if (error) {
memset(keys, 0, sizeof(*keys));
error = 0;
break;
}
for (i = 0; i < IEEE80211_WEP_NKID; i++) {
keys->wi_keys[i].wi_keylen =
htole16(ic->ic_nw_keys[i].wk_len);
memcpy(keys->wi_keys[i].wi_keydat,
ic->ic_nw_keys[i].wk_key, ic->ic_nw_keys[i].wk_len);
}
wreq.wi_len = sizeof(*keys) / 2;
break;
case WI_RID_MAX_DATALEN:
wreq.wi_val[0] = htole16(IEEE80211_MAX_LEN); /* TODO: frag */
wreq.wi_len = 1;
break;
case WI_RID_IFACE_STATS:
/* XXX: should be implemented in lower drivers */
break;
case WI_RID_READ_APS:
if (ic->ic_opmode != IEEE80211_M_HOSTAP) {
/*
* Don't return results until active scan completes.
*/
if (ic->ic_state == IEEE80211_S_SCAN &&
(ic->ic_flags & IEEE80211_F_ASCAN)) {
error = EINPROGRESS;
break;
}
}
i = 0;
ap = (void *)((char *)wreq.wi_val + sizeof(i));
TAILQ_FOREACH(ni, &ic->ic_node, ni_list) {
if ((caddr_t)(ap + 1) > (caddr_t)(&wreq + 1))
break;
memset(ap, 0, sizeof(*ap));
if (ic->ic_opmode == IEEE80211_M_HOSTAP) {
IEEE80211_ADDR_COPY(ap->bssid, ni->ni_macaddr);
ap->namelen = ic->ic_des_esslen;
if (ic->ic_des_esslen)
memcpy(ap->name, ic->ic_des_essid,
ic->ic_des_esslen);
} else {
IEEE80211_ADDR_COPY(ap->bssid, ni->ni_bssid);
ap->namelen = ni->ni_esslen;
if (ni->ni_esslen)
memcpy(ap->name, ni->ni_essid,
ni->ni_esslen);
}
ap->channel = ieee80211_chan2ieee(ic, ni->ni_chan);
ap->signal = ni->ni_rssi;
ap->capinfo = ni->ni_capinfo;
ap->interval = ni->ni_intval;
rs = &ni->ni_rates;
for (j = 0; j < rs->rs_nrates; j++) {
if (rs->rs_rates[j] & IEEE80211_RATE_BASIC) {
ap->rate = (rs->rs_rates[j] &
IEEE80211_RATE_VAL) * 5; /* XXX */
}
}
i++;
ap++;
}
memcpy(wreq.wi_val, &i, sizeof(i));
wreq.wi_len = (sizeof(int) + sizeof(*ap) * i) / 2;
break;
case WI_RID_PRISM2:
wreq.wi_val[0] = 1; /* XXX lie so SCAN_RES can give rates */
wreq.wi_len = sizeof(u_int16_t) / 2;
break;
case WI_RID_SCAN_RES: /* compatibility interface */
if (ic->ic_opmode != IEEE80211_M_HOSTAP &&
ic->ic_state == IEEE80211_S_SCAN) {
error = EINPROGRESS;
break;
}
/* NB: we use the Prism2 format so we can return rate info */
p2 = (struct wi_scan_p2_hdr *)wreq.wi_val;
res = (void *)&p2[1];
i = 0;
TAILQ_FOREACH(ni, &ic->ic_node, ni_list) {
if ((caddr_t)(res + 1) > (caddr_t)(&wreq + 1))
break;
res->wi_chan = ieee80211_chan2ieee(ic, ni->ni_chan);
res->wi_noise = 0;
res->wi_signal = ni->ni_rssi;
IEEE80211_ADDR_COPY(res->wi_bssid, ni->ni_bssid);
res->wi_interval = ni->ni_intval;
res->wi_capinfo = ni->ni_capinfo;
res->wi_ssid_len = ni->ni_esslen;
memcpy(res->wi_ssid, ni->ni_essid, IEEE80211_NWID_LEN);
/* NB: assumes wi_srates holds <= ni->ni_rates */
memcpy(res->wi_srates, ni->ni_rates.rs_rates,
sizeof(res->wi_srates));
if (ni->ni_rates.rs_nrates < 10)
res->wi_srates[ni->ni_rates.rs_nrates] = 0;
res->wi_rate = ni->ni_rates.rs_rates[ni->ni_txrate];
res->wi_rsvd = 0;
res++, i++;
}
p2->wi_rsvd = 0;
p2->wi_reason = i;
wreq.wi_len = (sizeof(*p2) + sizeof(*res) * i) / 2;
break;
case WI_RID_READ_CACHE:
i = 0;
TAILQ_FOREACH(ni, &ic->ic_node, ni_list) {
if (i == (WI_MAX_DATALEN/sizeof(struct wi_sigcache))-1)
break;
IEEE80211_ADDR_COPY(wsc.macsrc, ni->ni_macaddr);
memset(&wsc.ipsrc, 0, sizeof(wsc.ipsrc));
wsc.signal = ni->ni_rssi;
wsc.noise = 0;
wsc.quality = 0;
memcpy((caddr_t)wreq.wi_val + sizeof(wsc) * i,
&wsc, sizeof(wsc));
i++;
}
wreq.wi_len = sizeof(wsc) * i / 2;
break;
case WI_RID_SCAN_APS:
error = EINVAL;
break;
default:
error = EINVAL;
break;
}
if (error == 0) {
wreq.wi_len++;
error = copyout(&wreq, ifr->ifr_data, sizeof(wreq));
}
return error;
}
static int
findrate(struct ieee80211com *ic, enum ieee80211_phymode mode, int rate)
{
#define IEEERATE(_ic,_m,_i) \
((_ic)->ic_sup_rates[_m].rs_rates[_i] & IEEE80211_RATE_VAL)
int i, nrates = ic->ic_sup_rates[mode].rs_nrates;
for (i = 0; i < nrates; i++)
if (IEEERATE(ic, mode, i) == rate)
return i;
return -1;
#undef IEEERATE
}
int
ieee80211_cfgset(struct ifnet *ifp, u_long cmd, caddr_t data)
{
struct ieee80211com *ic = (void *)ifp;
int i, j, len, error, rate;
struct ifreq *ifr = (struct ifreq *)data;
struct wi_ltv_keys *keys;
struct wi_req wreq;
u_char chanlist[roundup(IEEE80211_CHAN_MAX, NBBY)];
error = copyin(ifr->ifr_data, &wreq, sizeof(wreq));
if (error)
return error;
len = wreq.wi_len ? (wreq.wi_len - 1) * 2 : 0;
switch (wreq.wi_type) {
case WI_RID_SERIALNO:
case WI_RID_NODENAME:
return EPERM;
case WI_RID_CURRENT_SSID:
return EPERM;
case WI_RID_OWN_SSID:
case WI_RID_DESIRED_SSID:
if (le16toh(wreq.wi_val[0]) * 2 > len ||
le16toh(wreq.wi_val[0]) > IEEE80211_NWID_LEN) {
error = ENOSPC;
break;
}
memset(ic->ic_des_essid, 0, sizeof(ic->ic_des_essid));
ic->ic_des_esslen = le16toh(wreq.wi_val[0]) * 2;
memcpy(ic->ic_des_essid, &wreq.wi_val[1], ic->ic_des_esslen);
error = ENETRESET;
break;
case WI_RID_CURRENT_BSSID:
return EPERM;
case WI_RID_OWN_CHNL:
if (len != 2)
return EINVAL;
i = le16toh(wreq.wi_val[0]);
if (i < 0 ||
i > IEEE80211_CHAN_MAX ||
isclr(ic->ic_chan_active, i))
return EINVAL;
ic->ic_ibss_chan = &ic->ic_channels[i];
if (ic->ic_flags & IEEE80211_F_SIBSS)
error = ENETRESET;
break;
case WI_RID_CURRENT_CHAN:
return EPERM;
case WI_RID_COMMS_QUALITY:
return EPERM;
case WI_RID_PROMISC:
if (len != 2)
return EINVAL;
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 (len != 2)
return EINVAL;
switch (le16toh(wreq.wi_val[0])) {
case IEEE80211_M_STA:
break;
case IEEE80211_M_IBSS:
if (!(ic->ic_caps & IEEE80211_C_IBSS))
return EINVAL;
break;
case IEEE80211_M_AHDEMO:
if (ic->ic_phytype != IEEE80211_T_DS ||
!(ic->ic_caps & IEEE80211_C_AHDEMO))
return EINVAL;
break;
case IEEE80211_M_HOSTAP:
if (!(ic->ic_caps & IEEE80211_C_HOSTAP))
return EINVAL;
break;
default:
return EINVAL;
}
if (le16toh(wreq.wi_val[0]) != ic->ic_opmode) {
ic->ic_opmode = le16toh(wreq.wi_val[0]);
error = ENETRESET;
}
break;
#if 0
case WI_RID_MAC_NODE:
if (len != IEEE80211_ADDR_LEN)
return EINVAL;
IEEE80211_ADDR_COPY(LLADDR(ifp->if_sadl), wreq.wi_val);
/* if_init will copy lladdr into ic_myaddr */
error = ENETRESET;
break;
#endif
case WI_RID_TX_RATE:
if (len != 2)
return EINVAL;
if (wreq.wi_val[0] == 0) {
/* auto */
ic->ic_fixed_rate = -1;
break;
}
rate = 2 * le16toh(wreq.wi_val[0]);
if (ic->ic_curmode == IEEE80211_MODE_AUTO) {
/*
* In autoselect mode search for the rate. We take
* the first instance which may not be right, but we
* are limited by the interface. Note that we also
* lock the mode to insure the rate is meaningful
* when it is used.
*/
for (j = IEEE80211_MODE_11A;
j < IEEE80211_MODE_MAX; j++) {
if ((ic->ic_modecaps & (1<<j)) == 0)
continue;
i = findrate(ic, j, rate);
if (i != -1) {
/* lock mode too */
ic->ic_curmode = j;
goto setrate;
}
}
} else {
i = findrate(ic, ic->ic_curmode, rate);
if (i != -1)
goto setrate;
}
return EINVAL;
setrate:
ic->ic_fixed_rate = i;
error = ENETRESET;
break;
case WI_RID_CUR_TX_RATE:
return EPERM;
case WI_RID_RTS_THRESH:
if (len != 2)
return EINVAL;
if (le16toh(wreq.wi_val[0]) != IEEE80211_MAX_LEN)
return EINVAL; /* TODO: RTS */
break;
case WI_RID_CREATE_IBSS:
if (len != 2)
return EINVAL;
if (wreq.wi_val[0] != 0) {
if ((ic->ic_caps & IEEE80211_C_IBSS) == 0)
return EINVAL;
if ((ic->ic_flags & IEEE80211_F_IBSSON) == 0) {
ic->ic_flags |= IEEE80211_F_IBSSON;
if (ic->ic_opmode == IEEE80211_M_IBSS &&
ic->ic_state == IEEE80211_S_SCAN)
error = ENETRESET;
}
} else {
if (ic->ic_flags & IEEE80211_F_IBSSON) {
ic->ic_flags &= ~IEEE80211_F_IBSSON;
if (ic->ic_flags & IEEE80211_F_SIBSS) {
ic->ic_flags &= ~IEEE80211_F_SIBSS;
error = ENETRESET;
}
}
}
break;
case WI_RID_MICROWAVE_OVEN:
if (len != 2)
return EINVAL;
if (wreq.wi_val[0] != 0)
return EINVAL; /* not supported */
break;
case WI_RID_ROAMING_MODE:
if (len != 2)
return EINVAL;
if (le16toh(wreq.wi_val[0]) != 1)
return EINVAL; /* not supported */
break;
case WI_RID_SYSTEM_SCALE:
if (len != 2)
return EINVAL;
if (le16toh(wreq.wi_val[0]) != 1)
return EINVAL; /* not supported */
break;
case WI_RID_PM_ENABLED:
if (len != 2)
return EINVAL;
if (wreq.wi_val[0] != 0) {
if ((ic->ic_caps & IEEE80211_C_PMGT) == 0)
return EINVAL;
if ((ic->ic_flags & IEEE80211_F_PMGTON) == 0) {
ic->ic_flags |= IEEE80211_F_PMGTON;
error = ENETRESET;
}
} else {
if (ic->ic_flags & IEEE80211_F_PMGTON) {
ic->ic_flags &= ~IEEE80211_F_PMGTON;
error = ENETRESET;
}
}
break;
case WI_RID_MAX_SLEEP:
if (len != 2)
return EINVAL;
ic->ic_lintval = le16toh(wreq.wi_val[0]);
if (ic->ic_flags & IEEE80211_F_PMGTON)
error = ENETRESET;
break;
case WI_RID_CUR_BEACON_INT:
return EPERM;
case WI_RID_WEP_AVAIL:
return EPERM;
case WI_RID_CNFAUTHMODE:
if (len != 2)
return EINVAL;
if (le16toh(wreq.wi_val[0]) != 1)
return EINVAL; /* TODO: shared key auth */
break;
case WI_RID_ENCRYPTION:
if (len != 2)
return EINVAL;
if (wreq.wi_val[0] != 0) {
if ((ic->ic_caps & IEEE80211_C_WEP) == 0)
return EINVAL;
if ((ic->ic_flags & IEEE80211_F_WEPON) == 0) {
ic->ic_flags |= IEEE80211_F_WEPON;
error = ENETRESET;
}
} else {
if (ic->ic_flags & IEEE80211_F_WEPON) {
ic->ic_flags &= ~IEEE80211_F_WEPON;
error = ENETRESET;
}
}
break;
case WI_RID_TX_CRYPT_KEY:
if (len != 2)
return EINVAL;
i = le16toh(wreq.wi_val[0]);
if (i >= IEEE80211_WEP_NKID)
return EINVAL;
ic->ic_wep_txkey = i;
break;
case WI_RID_DEFLT_CRYPT_KEYS:
if (len != sizeof(struct wi_ltv_keys))
return EINVAL;
keys = (struct wi_ltv_keys *)&wreq;
for (i = 0; i < IEEE80211_WEP_NKID; i++) {
len = le16toh(keys->wi_keys[i].wi_keylen);
if (len != 0 && len < IEEE80211_WEP_KEYLEN)
return EINVAL;
if (len > sizeof(ic->ic_nw_keys[i].wk_key))
return EINVAL;
}
memset(ic->ic_nw_keys, 0, sizeof(ic->ic_nw_keys));
for (i = 0; i < IEEE80211_WEP_NKID; i++) {
len = le16toh(keys->wi_keys[i].wi_keylen);
ic->ic_nw_keys[i].wk_len = len;
memcpy(ic->ic_nw_keys[i].wk_key,
keys->wi_keys[i].wi_keydat, len);
}
error = ENETRESET;
break;
case WI_RID_MAX_DATALEN:
if (len != 2)
return EINVAL;
len = le16toh(wreq.wi_val[0]);
if (len < 350 /* ? */ || len > IEEE80211_MAX_LEN)
return EINVAL;
if (len != IEEE80211_MAX_LEN)
return EINVAL; /* TODO: fragment */
ic->ic_fragthreshold = len;
error = ENETRESET;
break;
case WI_RID_IFACE_STATS:
error = EPERM;
break;
case WI_RID_SCAN_REQ: /* XXX wicontrol */
if (ic->ic_opmode == IEEE80211_M_HOSTAP)
break;
/* NB: ignore channel list and tx rate parameters */
error = ieee80211_new_state(ic, IEEE80211_S_SCAN, -1);
break;
case WI_RID_SCAN_APS:
if (ic->ic_opmode == IEEE80211_M_HOSTAP)
break;
len--; /* XXX: tx rate? */
/* FALLTHRU */
case WI_RID_CHANNEL_LIST:
memset(chanlist, 0, sizeof(chanlist));
/*
* Since channel 0 is not available for DS, channel 1
* is assigned to LSB on WaveLAN.
*/
if (ic->ic_phytype == IEEE80211_T_DS)
i = 1;
else
i = 0;
for (j = 0; i <= IEEE80211_CHAN_MAX; i++, j++) {
if ((j / 8) >= len)
break;
if (isclr((u_int8_t *)wreq.wi_val, j))
continue;
if (isclr(ic->ic_chan_active, i)) {
if (wreq.wi_type != WI_RID_CHANNEL_LIST)
continue;
if (isclr(ic->ic_chan_avail, i))
return EPERM;
}
setbit(chanlist, i);
}
memcpy(ic->ic_chan_active, chanlist,
sizeof(ic->ic_chan_active));
if (isclr(chanlist, ieee80211_chan2ieee(ic, ic->ic_ibss_chan))) {
for (i = 0; i <= IEEE80211_CHAN_MAX; i++)
if (isset(chanlist, i)) {
ic->ic_ibss_chan = &ic->ic_channels[i];
break;
}
}
if (isclr(chanlist, ieee80211_chan2ieee(ic, ic->ic_bss->ni_chan)))
ic->ic_bss->ni_chan = ic->ic_ibss_chan;
if (wreq.wi_type == WI_RID_CHANNEL_LIST)
error = ENETRESET;
else
error = ieee80211_new_state(ic, IEEE80211_S_SCAN, -1);
break;
default:
error = EINVAL;
break;
}
return error;
}
int
ieee80211_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data)
{
struct ieee80211com *ic = (void *)ifp;
int error = 0;
u_int kid, len;
struct ieee80211req *ireq;
u_int8_t tmpkey[IEEE80211_KEYBUF_SIZE];
char tmpssid[IEEE80211_NWID_LEN];
struct ieee80211_channel *chan;
switch (cmd) {
case SIOCSIFMEDIA:
case SIOCGIFMEDIA:
error = ifmedia_ioctl(ifp, (struct ifreq *) data,
&ic->ic_media, cmd);
break;
case SIOCG80211:
ireq = (struct ieee80211req *) data;
switch (ireq->i_type) {
case IEEE80211_IOC_SSID:
switch (ic->ic_state) {
case IEEE80211_S_INIT:
case IEEE80211_S_SCAN:
ireq->i_len = ic->ic_des_esslen;
memcpy(tmpssid, ic->ic_des_essid, ireq->i_len);
break;
default:
ireq->i_len = ic->ic_bss->ni_esslen;
memcpy(tmpssid, ic->ic_bss->ni_essid,
ireq->i_len);
break;
}
error = copyout(tmpssid, ireq->i_data, ireq->i_len);
break;
case IEEE80211_IOC_NUMSSIDS:
ireq->i_val = 1;
break;
case IEEE80211_IOC_WEP:
if ((ic->ic_caps & IEEE80211_C_WEP) == 0) {
ireq->i_val = IEEE80211_WEP_NOSUP;
} else {
if (ic->ic_flags & IEEE80211_F_WEPON) {
ireq->i_val =
IEEE80211_WEP_MIXED;
} else {
ireq->i_val =
IEEE80211_WEP_OFF;
}
}
break;
case IEEE80211_IOC_WEPKEY:
if ((ic->ic_caps & IEEE80211_C_WEP) == 0) {
error = EINVAL;
break;
}
kid = (u_int) ireq->i_val;
if (kid >= IEEE80211_WEP_NKID) {
error = EINVAL;
break;
}
len = (u_int) ic->ic_nw_keys[kid].wk_len;
/* NB: only root can read WEP keys */
if (suser(curthread)) {
bcopy(ic->ic_nw_keys[kid].wk_key, tmpkey, len);
} else {
bzero(tmpkey, len);
}
ireq->i_len = len;
error = copyout(tmpkey, ireq->i_data, len);
break;
case IEEE80211_IOC_NUMWEPKEYS:
if ((ic->ic_caps & IEEE80211_C_WEP) == 0)
error = EINVAL;
else
ireq->i_val = IEEE80211_WEP_NKID;
break;
case IEEE80211_IOC_WEPTXKEY:
if ((ic->ic_caps & IEEE80211_C_WEP) == 0)
error = EINVAL;
else
ireq->i_val = ic->ic_wep_txkey;
break;
case IEEE80211_IOC_AUTHMODE:
ireq->i_val = IEEE80211_AUTH_OPEN;
break;
case IEEE80211_IOC_CHANNEL:
switch (ic->ic_state) {
case IEEE80211_S_INIT:
case IEEE80211_S_SCAN:
if (ic->ic_opmode == IEEE80211_M_STA)
chan = ic->ic_des_chan;
else
chan = ic->ic_ibss_chan;
break;
default:
chan = ic->ic_bss->ni_chan;
break;
}
ireq->i_val = ieee80211_chan2ieee(ic, chan);
break;
case IEEE80211_IOC_POWERSAVE:
if (ic->ic_flags & IEEE80211_F_PMGTON)
ireq->i_val = IEEE80211_POWERSAVE_ON;
else
ireq->i_val = IEEE80211_POWERSAVE_OFF;
break;
case IEEE80211_IOC_POWERSAVESLEEP:
ireq->i_val = ic->ic_lintval;
break;
case IEEE80211_IOCT_RTSTHRESHOLD:
ireq->i_val = ic->ic_rtsthreshold;
break;
default:
error = EINVAL;
}
break;
case SIOCS80211:
error = suser(curthread);
if (error)
break;
ireq = (struct ieee80211req *) data;
switch (ireq->i_type) {
case IEEE80211_IOC_SSID:
if (ireq->i_val != 0 ||
ireq->i_len > IEEE80211_NWID_LEN) {
error = EINVAL;
break;
}
error = copyin(ireq->i_data, tmpssid, ireq->i_len);
if (error)
break;
memset(ic->ic_des_essid, 0, IEEE80211_NWID_LEN);
ic->ic_des_esslen = ireq->i_len;
memcpy(ic->ic_des_essid, tmpssid, ireq->i_len);
error = ENETRESET;
break;
case IEEE80211_IOC_WEP:
/*
* These cards only support one mode so
* we just turn wep on if what ever is
* passed in is not OFF.
*/
if (ireq->i_val == IEEE80211_WEP_OFF) {
ic->ic_flags &= ~IEEE80211_F_WEPON;
} else {
ic->ic_flags |= IEEE80211_F_WEPON;
}
error = ENETRESET;
break;
case IEEE80211_IOC_WEPKEY:
if ((ic->ic_caps & IEEE80211_C_WEP) == 0) {
error = EINVAL;
break;
}
kid = (u_int) ireq->i_val;
if (kid >= IEEE80211_WEP_NKID) {
error = EINVAL;
break;
}
if (ireq->i_len > sizeof(tmpkey)) {
error = EINVAL;
break;
}
memset(tmpkey, 0, sizeof(tmpkey));
error = copyin(ireq->i_data, tmpkey, ireq->i_len);
if (error)
break;
memcpy(ic->ic_nw_keys[kid].wk_key, tmpkey,
sizeof(tmpkey));
ic->ic_nw_keys[kid].wk_len = ireq->i_len;
error = ENETRESET;
break;
case IEEE80211_IOC_WEPTXKEY:
kid = (u_int) ireq->i_val;
if (kid >= IEEE80211_WEP_NKID) {
error = EINVAL;
break;
}
ic->ic_wep_txkey = kid;
error = ENETRESET;
break;
#if 0
case IEEE80211_IOC_AUTHMODE:
sc->wi_authmode = ireq->i_val;
break;
#endif
case IEEE80211_IOC_CHANNEL:
/* XXX 0xffff overflows 16-bit signed */
if (ireq->i_val == 0 ||
ireq->i_val == (int16_t) IEEE80211_CHAN_ANY)
ic->ic_des_chan = IEEE80211_CHAN_ANYC;
else if ((u_int) ireq->i_val > IEEE80211_CHAN_MAX ||
isclr(ic->ic_chan_active, ireq->i_val)) {
error = EINVAL;
break;
} else
ic->ic_ibss_chan = ic->ic_des_chan =
&ic->ic_channels[ireq->i_val];
switch (ic->ic_state) {
case IEEE80211_S_INIT:
case IEEE80211_S_SCAN:
error = ENETRESET;
break;
default:
if (ic->ic_opmode == IEEE80211_M_STA) {
if (ic->ic_des_chan != IEEE80211_CHAN_ANYC &&
ic->ic_bss->ni_chan != ic->ic_des_chan)
error = ENETRESET;
} else {
if (ic->ic_bss->ni_chan != ic->ic_ibss_chan)
error = ENETRESET;
}
break;
}
break;
case IEEE80211_IOC_POWERSAVE:
switch (ireq->i_val) {
case IEEE80211_POWERSAVE_OFF:
if (ic->ic_flags & IEEE80211_F_PMGTON) {
ic->ic_flags &= ~IEEE80211_F_PMGTON;
error = ENETRESET;
}
break;
case IEEE80211_POWERSAVE_ON:
if ((ic->ic_caps & IEEE80211_C_PMGT) == 0)
error = EINVAL;
else if ((ic->ic_flags & IEEE80211_F_PMGTON) == 0) {
ic->ic_flags |= IEEE80211_F_PMGTON;
error = ENETRESET;
}
break;
default:
error = EINVAL;
break;
}
break;
case IEEE80211_IOC_POWERSAVESLEEP:
if (ireq->i_val < 0) {
error = EINVAL;
break;
}
ic->ic_lintval = ireq->i_val;
error = ENETRESET;
break;
case IEEE80211_IOCT_RTSTHRESHOLD:
if (!(IEEE80211_RTS_MIN < ireq->i_val &&
ireq->i_val < IEEE80211_RTS_MAX)) {
error = EINVAL;
break;
}
ic->ic_rtsthreshold = ireq->i_val;
error = ENETRESET;
break;
default:
error = EINVAL;
break;
}
break;
case SIOCGIFGENERIC:
error = ieee80211_cfgget(ifp, cmd, data);
break;
case SIOCSIFGENERIC:
error = suser(curthread);
if (error)
break;
error = ieee80211_cfgset(ifp, cmd, data);
break;
default:
error = ether_ioctl(ifp, cmd, data);
break;
}
return error;
}
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