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freebsd-skq/sys/net80211/ieee80211_ioctl.c

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/*-
* Copyright (c) 2001 Atsushi Onoe
* 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 ioctl support (FreeBSD-specific)
*/
#include "opt_inet.h"
#include "opt_ipx.h"
#include "opt_wlan.h"
#include <sys/endian.h>
#include <sys/param.h>
#include <sys/kernel.h>
#include <sys/priv.h>
#include <sys/socket.h>
#include <sys/sockio.h>
#include <sys/systm.h>
#include <net/if.h>
#include <net/if_dl.h>
#include <net/if_media.h>
#include <net/ethernet.h>
#ifdef INET
#include <netinet/in.h>
#include <netinet/if_ether.h>
#endif
#ifdef IPX
#include <netipx/ipx.h>
#include <netipx/ipx_if.h>
#endif
#include <net80211/ieee80211_var.h>
#include <net80211/ieee80211_ioctl.h>
#include <net80211/ieee80211_regdomain.h>
#include <net80211/ieee80211_input.h>
#define IS_UP_AUTO(_vap) \
(IFNET_IS_UP_RUNNING(vap->iv_ifp) && \
(_vap)->iv_roaming == IEEE80211_ROAMING_AUTO)
static const uint8_t zerobssid[IEEE80211_ADDR_LEN];
static struct ieee80211_channel *findchannel(struct ieee80211com *,
int ieee, int mode);
static __noinline int
ieee80211_ioctl_getkey(struct ieee80211vap *vap, struct ieee80211req *ireq)
{
struct ieee80211com *ic = vap->iv_ic;
struct ieee80211_node *ni;
struct ieee80211req_key ik;
struct ieee80211_key *wk;
const struct ieee80211_cipher *cip;
u_int kid;
int error;
if (ireq->i_len != sizeof(ik))
return EINVAL;
error = copyin(ireq->i_data, &ik, sizeof(ik));
if (error)
return error;
kid = ik.ik_keyix;
if (kid == IEEE80211_KEYIX_NONE) {
ni = ieee80211_find_vap_node(&ic->ic_sta, vap, ik.ik_macaddr);
if (ni == NULL)
return ENOENT;
wk = &ni->ni_ucastkey;
} else {
if (kid >= IEEE80211_WEP_NKID)
return EINVAL;
wk = &vap->iv_nw_keys[kid];
IEEE80211_ADDR_COPY(&ik.ik_macaddr, vap->iv_bss->ni_macaddr);
ni = NULL;
}
cip = wk->wk_cipher;
ik.ik_type = cip->ic_cipher;
ik.ik_keylen = wk->wk_keylen;
ik.ik_flags = wk->wk_flags & (IEEE80211_KEY_XMIT | IEEE80211_KEY_RECV);
if (wk->wk_keyix == vap->iv_def_txkey)
ik.ik_flags |= IEEE80211_KEY_DEFAULT;
if (priv_check(curthread, PRIV_NET80211_GETKEY) == 0) {
/* NB: only root can read key data */
ik.ik_keyrsc = wk->wk_keyrsc[IEEE80211_NONQOS_TID];
ik.ik_keytsc = wk->wk_keytsc;
memcpy(ik.ik_keydata, wk->wk_key, wk->wk_keylen);
if (cip->ic_cipher == IEEE80211_CIPHER_TKIP) {
memcpy(ik.ik_keydata+wk->wk_keylen,
wk->wk_key + IEEE80211_KEYBUF_SIZE,
IEEE80211_MICBUF_SIZE);
ik.ik_keylen += IEEE80211_MICBUF_SIZE;
}
} else {
ik.ik_keyrsc = 0;
ik.ik_keytsc = 0;
memset(ik.ik_keydata, 0, sizeof(ik.ik_keydata));
}
if (ni != NULL)
ieee80211_free_node(ni);
return copyout(&ik, ireq->i_data, sizeof(ik));
}
static __noinline int
ieee80211_ioctl_getchanlist(struct ieee80211vap *vap, struct ieee80211req *ireq)
{
struct ieee80211com *ic = vap->iv_ic;
if (sizeof(ic->ic_chan_active) < ireq->i_len)
ireq->i_len = sizeof(ic->ic_chan_active);
return copyout(&ic->ic_chan_active, ireq->i_data, ireq->i_len);
}
static __noinline int
ieee80211_ioctl_getchaninfo(struct ieee80211vap *vap, struct ieee80211req *ireq)
{
struct ieee80211com *ic = vap->iv_ic;
int space;
space = __offsetof(struct ieee80211req_chaninfo,
ic_chans[ic->ic_nchans]);
if (space > ireq->i_len)
space = ireq->i_len;
/* XXX assumes compatible layout */
return copyout(&ic->ic_nchans, ireq->i_data, space);
}
static __noinline int
ieee80211_ioctl_getwpaie(struct ieee80211vap *vap,
struct ieee80211req *ireq, int req)
{
struct ieee80211_node *ni;
struct ieee80211req_wpaie2 wpaie;
int error;
if (ireq->i_len < IEEE80211_ADDR_LEN)
return EINVAL;
error = copyin(ireq->i_data, wpaie.wpa_macaddr, IEEE80211_ADDR_LEN);
if (error != 0)
return error;
ni = ieee80211_find_vap_node(&vap->iv_ic->ic_sta, vap, wpaie.wpa_macaddr);
if (ni == NULL)
return ENOENT;
memset(wpaie.wpa_ie, 0, sizeof(wpaie.wpa_ie));
if (ni->ni_ies.wpa_ie != NULL) {
int ielen = ni->ni_ies.wpa_ie[1] + 2;
if (ielen > sizeof(wpaie.wpa_ie))
ielen = sizeof(wpaie.wpa_ie);
memcpy(wpaie.wpa_ie, ni->ni_ies.wpa_ie, ielen);
}
if (req == IEEE80211_IOC_WPAIE2) {
memset(wpaie.rsn_ie, 0, sizeof(wpaie.rsn_ie));
if (ni->ni_ies.rsn_ie != NULL) {
int ielen = ni->ni_ies.rsn_ie[1] + 2;
if (ielen > sizeof(wpaie.rsn_ie))
ielen = sizeof(wpaie.rsn_ie);
memcpy(wpaie.rsn_ie, ni->ni_ies.rsn_ie, ielen);
}
if (ireq->i_len > sizeof(struct ieee80211req_wpaie2))
ireq->i_len = sizeof(struct ieee80211req_wpaie2);
} else {
/* compatibility op, may overwrite wpa ie */
/* XXX check ic_flags? */
if (ni->ni_ies.rsn_ie != NULL) {
int ielen = ni->ni_ies.rsn_ie[1] + 2;
if (ielen > sizeof(wpaie.wpa_ie))
ielen = sizeof(wpaie.wpa_ie);
memcpy(wpaie.wpa_ie, ni->ni_ies.rsn_ie, ielen);
}
if (ireq->i_len > sizeof(struct ieee80211req_wpaie))
ireq->i_len = sizeof(struct ieee80211req_wpaie);
}
ieee80211_free_node(ni);
return copyout(&wpaie, ireq->i_data, ireq->i_len);
}
static __noinline int
ieee80211_ioctl_getstastats(struct ieee80211vap *vap, struct ieee80211req *ireq)
{
struct ieee80211_node *ni;
uint8_t macaddr[IEEE80211_ADDR_LEN];
const int off = __offsetof(struct ieee80211req_sta_stats, is_stats);
int error;
if (ireq->i_len < off)
return EINVAL;
error = copyin(ireq->i_data, macaddr, IEEE80211_ADDR_LEN);
if (error != 0)
return error;
ni = ieee80211_find_vap_node(&vap->iv_ic->ic_sta, vap, macaddr);
if (ni == NULL)
return ENOENT;
if (ireq->i_len > sizeof(struct ieee80211req_sta_stats))
ireq->i_len = sizeof(struct ieee80211req_sta_stats);
/* NB: copy out only the statistics */
error = copyout(&ni->ni_stats, (uint8_t *) ireq->i_data + off,
ireq->i_len - off);
ieee80211_free_node(ni);
return error;
}
struct scanreq {
struct ieee80211req_scan_result *sr;
size_t space;
};
static size_t
scan_space(const struct ieee80211_scan_entry *se, int *ielen)
{
size_t len;
*ielen = se->se_ies.len;
/*
* NB: ie's can be no more than 255 bytes and the max 802.11
* packet is <3Kbytes so we are sure this doesn't overflow
* 16-bits; if this is a concern we can drop the ie's.
*/
len = sizeof(struct ieee80211req_scan_result) + se->se_ssid[1] + *ielen;
return roundup(len, sizeof(uint32_t));
}
static void
get_scan_space(void *arg, const struct ieee80211_scan_entry *se)
{
struct scanreq *req = arg;
int ielen;
req->space += scan_space(se, &ielen);
}
static __noinline void
get_scan_result(void *arg, const struct ieee80211_scan_entry *se)
{
struct scanreq *req = arg;
struct ieee80211req_scan_result *sr;
int ielen, len, nr, nxr;
uint8_t *cp;
len = scan_space(se, &ielen);
if (len > req->space)
return;
sr = req->sr;
KASSERT(len <= 65535 && ielen <= 65535,
("len %u ssid %u ie %u", len, se->se_ssid[1], ielen));
sr->isr_len = len;
sr->isr_ie_off = sizeof(struct ieee80211req_scan_result);
sr->isr_ie_len = ielen;
sr->isr_freq = se->se_chan->ic_freq;
sr->isr_flags = se->se_chan->ic_flags;
sr->isr_rssi = se->se_rssi;
sr->isr_noise = se->se_noise;
sr->isr_intval = se->se_intval;
sr->isr_capinfo = se->se_capinfo;
sr->isr_erp = se->se_erp;
IEEE80211_ADDR_COPY(sr->isr_bssid, se->se_bssid);
nr = min(se->se_rates[1], IEEE80211_RATE_MAXSIZE);
memcpy(sr->isr_rates, se->se_rates+2, nr);
nxr = min(se->se_xrates[1], IEEE80211_RATE_MAXSIZE - nr);
memcpy(sr->isr_rates+nr, se->se_xrates+2, nxr);
sr->isr_nrates = nr + nxr;
sr->isr_ssid_len = se->se_ssid[1];
cp = ((uint8_t *)sr) + sr->isr_ie_off;
memcpy(cp, se->se_ssid+2, sr->isr_ssid_len);
if (ielen) {
cp += sr->isr_ssid_len;
memcpy(cp, se->se_ies.data, ielen);
}
req->space -= len;
req->sr = (struct ieee80211req_scan_result *)(((uint8_t *)sr) + len);
}
static __noinline int
ieee80211_ioctl_getscanresults(struct ieee80211vap *vap,
struct ieee80211req *ireq)
{
struct scanreq req;
int error;
if (ireq->i_len < sizeof(struct scanreq))
return EFAULT;
error = 0;
req.space = 0;
ieee80211_scan_iterate(vap, get_scan_space, &req);
if (req.space > ireq->i_len)
req.space = ireq->i_len;
if (req.space > 0) {
size_t space;
void *p;
space = req.space;
/* XXX M_WAITOK after driver lock released */
MALLOC(p, void *, space, M_TEMP, M_NOWAIT | M_ZERO);
if (p == NULL)
return ENOMEM;
req.sr = p;
ieee80211_scan_iterate(vap, get_scan_result, &req);
ireq->i_len = space - req.space;
error = copyout(p, ireq->i_data, ireq->i_len);
FREE(p, M_TEMP);
} else
ireq->i_len = 0;
return error;
}
struct stainforeq {
struct ieee80211vap *vap;
struct ieee80211req_sta_info *si;
size_t space;
};
static size_t
sta_space(const struct ieee80211_node *ni, size_t *ielen)
{
*ielen = ni->ni_ies.len;
return roundup(sizeof(struct ieee80211req_sta_info) + *ielen,
sizeof(uint32_t));
}
static void
get_sta_space(void *arg, struct ieee80211_node *ni)
{
struct stainforeq *req = arg;
size_t ielen;
if (req->vap != ni->ni_vap)
return;
if (ni->ni_vap->iv_opmode == IEEE80211_M_HOSTAP &&
ni->ni_associd == 0) /* only associated stations */
return;
req->space += sta_space(ni, &ielen);
}
static __noinline void
get_sta_info(void *arg, struct ieee80211_node *ni)
{
struct stainforeq *req = arg;
struct ieee80211vap *vap = ni->ni_vap;
struct ieee80211req_sta_info *si;
size_t ielen, len;
uint8_t *cp;
if (req->vap != ni->ni_vap)
return;
if (vap->iv_opmode == IEEE80211_M_HOSTAP &&
ni->ni_associd == 0) /* only associated stations */
return;
if (ni->ni_chan == IEEE80211_CHAN_ANYC) /* XXX bogus entry */
return;
len = sta_space(ni, &ielen);
if (len > req->space)
return;
si = req->si;
si->isi_len = len;
si->isi_ie_off = sizeof(struct ieee80211req_sta_info);
si->isi_ie_len = ielen;
si->isi_freq = ni->ni_chan->ic_freq;
si->isi_flags = ni->ni_chan->ic_flags;
si->isi_state = ni->ni_flags;
si->isi_authmode = ni->ni_authmode;
vap->iv_ic->ic_node_getsignal(ni, &si->isi_rssi, &si->isi_noise);
vap->iv_ic->ic_node_getmimoinfo(ni, &si->isi_mimo);
si->isi_capinfo = ni->ni_capinfo;
si->isi_erp = ni->ni_erp;
IEEE80211_ADDR_COPY(si->isi_macaddr, ni->ni_macaddr);
si->isi_nrates = ni->ni_rates.rs_nrates;
if (si->isi_nrates > 15)
si->isi_nrates = 15;
memcpy(si->isi_rates, ni->ni_rates.rs_rates, si->isi_nrates);
si->isi_txrate = ni->ni_txrate;
if (si->isi_txrate & IEEE80211_RATE_MCS) {
const struct ieee80211_mcs_rates *mcs =
&ieee80211_htrates[ni->ni_txrate &~ IEEE80211_RATE_MCS];
if (IEEE80211_IS_CHAN_HT40(ni->ni_chan)) {
if (ni->ni_htcap & IEEE80211_HTCAP_SHORTGI40)
si->isi_txmbps = mcs->ht40_rate_800ns;
else
si->isi_txmbps = mcs->ht40_rate_400ns;
} else {
if (ni->ni_htcap & IEEE80211_HTCAP_SHORTGI20)
si->isi_txmbps = mcs->ht20_rate_800ns;
else
si->isi_txmbps = mcs->ht20_rate_400ns;
}
} else
si->isi_txmbps = si->isi_txrate;
si->isi_associd = ni->ni_associd;
si->isi_txpower = ni->ni_txpower;
si->isi_vlan = ni->ni_vlan;
if (ni->ni_flags & IEEE80211_NODE_QOS) {
memcpy(si->isi_txseqs, ni->ni_txseqs, sizeof(ni->ni_txseqs));
memcpy(si->isi_rxseqs, ni->ni_rxseqs, sizeof(ni->ni_rxseqs));
} else {
si->isi_txseqs[0] = ni->ni_txseqs[IEEE80211_NONQOS_TID];
si->isi_rxseqs[0] = ni->ni_rxseqs[IEEE80211_NONQOS_TID];
}
/* NB: leave all cases in case we relax ni_associd == 0 check */
if (ieee80211_node_is_authorized(ni))
si->isi_inact = vap->iv_inact_run;
else if (ni->ni_associd != 0 ||
(vap->iv_opmode == IEEE80211_M_WDS &&
(vap->iv_flags_ext & IEEE80211_FEXT_WDSLEGACY)))
si->isi_inact = vap->iv_inact_auth;
else
si->isi_inact = vap->iv_inact_init;
si->isi_inact = (si->isi_inact - ni->ni_inact) * IEEE80211_INACT_WAIT;
if (ielen) {
cp = ((uint8_t *)si) + si->isi_ie_off;
memcpy(cp, ni->ni_ies.data, ielen);
}
req->si = (struct ieee80211req_sta_info *)(((uint8_t *)si) + len);
req->space -= len;
}
static __noinline int
getstainfo_common(struct ieee80211vap *vap, struct ieee80211req *ireq,
struct ieee80211_node *ni, int off)
{
struct ieee80211com *ic = vap->iv_ic;
struct stainforeq req;
size_t space;
void *p;
int error;
error = 0;
req.space = 0;
req.vap = vap;
if (ni == NULL)
ieee80211_iterate_nodes(&ic->ic_sta, get_sta_space, &req);
else
get_sta_space(&req, ni);
if (req.space > ireq->i_len)
req.space = ireq->i_len;
if (req.space > 0) {
space = req.space;
/* XXX M_WAITOK after driver lock released */
MALLOC(p, void *, space, M_TEMP, M_NOWAIT | M_ZERO);
if (p == NULL) {
error = ENOMEM;
goto bad;
}
req.si = p;
if (ni == NULL)
ieee80211_iterate_nodes(&ic->ic_sta, get_sta_info, &req);
else
get_sta_info(&req, ni);
ireq->i_len = space - req.space;
error = copyout(p, (uint8_t *) ireq->i_data+off, ireq->i_len);
FREE(p, M_TEMP);
} else
ireq->i_len = 0;
bad:
if (ni != NULL)
ieee80211_free_node(ni);
return error;
}
static __noinline int
ieee80211_ioctl_getstainfo(struct ieee80211vap *vap, struct ieee80211req *ireq)
{
uint8_t macaddr[IEEE80211_ADDR_LEN];
const int off = __offsetof(struct ieee80211req_sta_req, info);
struct ieee80211_node *ni;
int error;
if (ireq->i_len < sizeof(struct ieee80211req_sta_req))
return EFAULT;
error = copyin(ireq->i_data, macaddr, IEEE80211_ADDR_LEN);
if (error != 0)
return error;
if (IEEE80211_ADDR_EQ(macaddr, vap->iv_ifp->if_broadcastaddr)) {
ni = NULL;
} else {
ni = ieee80211_find_vap_node(&vap->iv_ic->ic_sta, vap, macaddr);
if (ni == NULL)
return ENOENT;
}
return getstainfo_common(vap, ireq, ni, off);
}
static __noinline int
ieee80211_ioctl_getstatxpow(struct ieee80211vap *vap, struct ieee80211req *ireq)
{
struct ieee80211_node *ni;
struct ieee80211req_sta_txpow txpow;
int error;
if (ireq->i_len != sizeof(txpow))
return EINVAL;
error = copyin(ireq->i_data, &txpow, sizeof(txpow));
if (error != 0)
return error;
ni = ieee80211_find_vap_node(&vap->iv_ic->ic_sta, vap, txpow.it_macaddr);
if (ni == NULL)
return ENOENT;
txpow.it_txpow = ni->ni_txpower;
error = copyout(&txpow, ireq->i_data, sizeof(txpow));
ieee80211_free_node(ni);
return error;
}
static __noinline int
ieee80211_ioctl_getwmeparam(struct ieee80211vap *vap, struct ieee80211req *ireq)
{
struct ieee80211com *ic = vap->iv_ic;
struct ieee80211_wme_state *wme = &ic->ic_wme;
struct wmeParams *wmep;
int ac;
if ((ic->ic_caps & IEEE80211_C_WME) == 0)
return EINVAL;
ac = (ireq->i_len & IEEE80211_WMEPARAM_VAL);
if (ac >= WME_NUM_AC)
ac = WME_AC_BE;
if (ireq->i_len & IEEE80211_WMEPARAM_BSS)
wmep = &wme->wme_wmeBssChanParams.cap_wmeParams[ac];
else
wmep = &wme->wme_wmeChanParams.cap_wmeParams[ac];
switch (ireq->i_type) {
case IEEE80211_IOC_WME_CWMIN: /* WME: CWmin */
ireq->i_val = wmep->wmep_logcwmin;
break;
case IEEE80211_IOC_WME_CWMAX: /* WME: CWmax */
ireq->i_val = wmep->wmep_logcwmax;
break;
case IEEE80211_IOC_WME_AIFS: /* WME: AIFS */
ireq->i_val = wmep->wmep_aifsn;
break;
case IEEE80211_IOC_WME_TXOPLIMIT: /* WME: txops limit */
ireq->i_val = wmep->wmep_txopLimit;
break;
case IEEE80211_IOC_WME_ACM: /* WME: ACM (bss only) */
wmep = &wme->wme_wmeBssChanParams.cap_wmeParams[ac];
ireq->i_val = wmep->wmep_acm;
break;
case IEEE80211_IOC_WME_ACKPOLICY: /* WME: ACK policy (!bss only)*/
wmep = &wme->wme_wmeChanParams.cap_wmeParams[ac];
ireq->i_val = !wmep->wmep_noackPolicy;
break;
}
return 0;
}
static __noinline int
ieee80211_ioctl_getmaccmd(struct ieee80211vap *vap, struct ieee80211req *ireq)
{
const struct ieee80211_aclator *acl = vap->iv_acl;
return (acl == NULL ? EINVAL : acl->iac_getioctl(vap, ireq));
}
/*
* Return the current ``state'' of an Atheros capbility.
* If associated in station mode report the negotiated
* setting. Otherwise report the current setting.
*/
static int
getathcap(struct ieee80211vap *vap, int cap)
{
if (vap->iv_opmode == IEEE80211_M_STA &&
vap->iv_state == IEEE80211_S_RUN)
return IEEE80211_ATH_CAP(vap, vap->iv_bss, cap) != 0;
else
return (vap->iv_flags & cap) != 0;
}
static __noinline int
ieee80211_ioctl_getcurchan(struct ieee80211vap *vap, struct ieee80211req *ireq)
{
struct ieee80211com *ic = vap->iv_ic;
struct ieee80211_channel *c;
if (ireq->i_len != sizeof(struct ieee80211_channel))
return EINVAL;
/*
* vap's may have different operating channels when HT is
* in use. When in RUN state report the vap-specific channel.
* Otherwise return curchan.
*/
if (vap->iv_state == IEEE80211_S_RUN)
c = vap->iv_bss->ni_chan;
else
c = ic->ic_curchan;
return copyout(c, ireq->i_data, sizeof(*c));
}
static int
getappie(const struct ieee80211_appie *aie, struct ieee80211req *ireq)
{
if (aie == NULL)
return EINVAL;
/* NB: truncate, caller can check length */
if (ireq->i_len > aie->ie_len)
ireq->i_len = aie->ie_len;
return copyout(aie->ie_data, ireq->i_data, ireq->i_len);
}
static int
ieee80211_ioctl_getappie(struct ieee80211vap *vap, struct ieee80211req *ireq)
{
uint8_t fc0;
fc0 = ireq->i_val & 0xff;
if ((fc0 & IEEE80211_FC0_TYPE_MASK) != IEEE80211_FC0_TYPE_MGT)
return EINVAL;
/* NB: could check iv_opmode and reject but hardly worth the effort */
switch (fc0 & IEEE80211_FC0_SUBTYPE_MASK) {
case IEEE80211_FC0_SUBTYPE_BEACON:
return getappie(vap->iv_appie_beacon, ireq);
case IEEE80211_FC0_SUBTYPE_PROBE_RESP:
return getappie(vap->iv_appie_proberesp, ireq);
case IEEE80211_FC0_SUBTYPE_ASSOC_RESP:
return getappie(vap->iv_appie_assocresp, ireq);
case IEEE80211_FC0_SUBTYPE_PROBE_REQ:
return getappie(vap->iv_appie_probereq, ireq);
case IEEE80211_FC0_SUBTYPE_ASSOC_REQ:
return getappie(vap->iv_appie_assocreq, ireq);
case IEEE80211_FC0_SUBTYPE_BEACON|IEEE80211_FC0_SUBTYPE_PROBE_RESP:
return getappie(vap->iv_appie_wpa, ireq);
}
return EINVAL;
}
static __noinline int
ieee80211_ioctl_getregdomain(struct ieee80211vap *vap,
const struct ieee80211req *ireq)
{
struct ieee80211com *ic = vap->iv_ic;
if (ireq->i_len != sizeof(ic->ic_regdomain))
return EINVAL;
return copyout(&ic->ic_regdomain, ireq->i_data,
sizeof(ic->ic_regdomain));
}
static __noinline int
ieee80211_ioctl_getroam(struct ieee80211vap *vap,
const struct ieee80211req *ireq)
{
if (ireq->i_len != sizeof(vap->iv_roamparms))
return EINVAL;
return copyout(vap->iv_roamparms, ireq->i_data,
sizeof(vap->iv_roamparms));
}
static __noinline int
ieee80211_ioctl_gettxparams(struct ieee80211vap *vap,
const struct ieee80211req *ireq)
{
if (ireq->i_len != sizeof(vap->iv_txparms))
return EINVAL;
return copyout(vap->iv_txparms, ireq->i_data, sizeof(vap->iv_txparms));
}
static __noinline int
ieee80211_ioctl_getdevcaps(struct ieee80211com *ic,
const struct ieee80211req *ireq)
{
struct ieee80211_devcaps_req *dc;
struct ieee80211req_chaninfo *ci;
int error;
if (ireq->i_len != sizeof(struct ieee80211_devcaps_req))
return EINVAL;
MALLOC(dc, struct ieee80211_devcaps_req *,
sizeof(struct ieee80211_devcaps_req), M_TEMP, M_NOWAIT | M_ZERO);
if (dc == NULL)
return ENOMEM;
dc->dc_drivercaps = ic->ic_caps;
dc->dc_cryptocaps = ic->ic_cryptocaps;
dc->dc_htcaps = ic->ic_htcaps;
ci = &dc->dc_chaninfo;
ic->ic_getradiocaps(ic, &ci->ic_nchans, ci->ic_chans);
ieee80211_sort_channels(ci->ic_chans, ci->ic_nchans);
error = copyout(dc, ireq->i_data, sizeof(*dc));
FREE(dc, M_TEMP);
return error;
}
static __noinline int
ieee80211_ioctl_getstavlan(struct ieee80211vap *vap, struct ieee80211req *ireq)
{
struct ieee80211_node *ni;
struct ieee80211req_sta_vlan vlan;
int error;
if (ireq->i_len != sizeof(vlan))
return EINVAL;
error = copyin(ireq->i_data, &vlan, sizeof(vlan));
if (error != 0)
return error;
if (!IEEE80211_ADDR_EQ(vlan.sv_macaddr, zerobssid)) {
ni = ieee80211_find_vap_node(&vap->iv_ic->ic_sta, vap,
vlan.sv_macaddr);
if (ni == NULL)
return ENOENT;
} else
ni = ieee80211_ref_node(vap->iv_bss);
vlan.sv_vlan = ni->ni_vlan;
error = copyout(&vlan, ireq->i_data, sizeof(vlan));
ieee80211_free_node(ni);
return error;
}
/*
* When building the kernel with -O2 on the i386 architecture, gcc
* seems to want to inline this function into ieee80211_ioctl()
* (which is the only routine that calls it). When this happens,
* ieee80211_ioctl() ends up consuming an additional 2K of stack
* space. (Exactly why it needs so much is unclear.) The problem
* is that it's possible for ieee80211_ioctl() to invoke other
* routines (including driver init functions) which could then find
* themselves perilously close to exhausting the stack.
*
* To avoid this, we deliberately prevent gcc from inlining this
* routine. Another way to avoid this is to use less agressive
* optimization when compiling this file (i.e. -O instead of -O2)
* but special-casing the compilation of this one module in the
* build system would be awkward.
*/
static __noinline int
ieee80211_ioctl_get80211(struct ieee80211vap *vap, u_long cmd,
struct ieee80211req *ireq)
{
#define MS(_v, _f) (((_v) & _f) >> _f##_S)
struct ieee80211com *ic = vap->iv_ic;
u_int kid, len;
uint8_t tmpkey[IEEE80211_KEYBUF_SIZE];
char tmpssid[IEEE80211_NWID_LEN];
int error = 0;
switch (ireq->i_type) {
case IEEE80211_IOC_SSID:
switch (vap->iv_state) {
case IEEE80211_S_INIT:
case IEEE80211_S_SCAN:
ireq->i_len = vap->iv_des_ssid[0].len;
memcpy(tmpssid, vap->iv_des_ssid[0].ssid, ireq->i_len);
break;
default:
ireq->i_len = vap->iv_bss->ni_esslen;
memcpy(tmpssid, vap->iv_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 ((vap->iv_flags & IEEE80211_F_PRIVACY) == 0)
ireq->i_val = IEEE80211_WEP_OFF;
else if (vap->iv_flags & IEEE80211_F_DROPUNENC)
ireq->i_val = IEEE80211_WEP_ON;
else
ireq->i_val = IEEE80211_WEP_MIXED;
break;
case IEEE80211_IOC_WEPKEY:
kid = (u_int) ireq->i_val;
if (kid >= IEEE80211_WEP_NKID)
return EINVAL;
len = (u_int) vap->iv_nw_keys[kid].wk_keylen;
/* NB: only root can read WEP keys */
if (priv_check(curthread, PRIV_NET80211_GETKEY) == 0) {
bcopy(vap->iv_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:
ireq->i_val = IEEE80211_WEP_NKID;
break;
case IEEE80211_IOC_WEPTXKEY:
ireq->i_val = vap->iv_def_txkey;
break;
case IEEE80211_IOC_AUTHMODE:
if (vap->iv_flags & IEEE80211_F_WPA)
ireq->i_val = IEEE80211_AUTH_WPA;
else
ireq->i_val = vap->iv_bss->ni_authmode;
break;
case IEEE80211_IOC_CHANNEL:
ireq->i_val = ieee80211_chan2ieee(ic, ic->ic_curchan);
break;
case IEEE80211_IOC_POWERSAVE:
if (vap->iv_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_IOC_RTSTHRESHOLD:
ireq->i_val = vap->iv_rtsthreshold;
break;
case IEEE80211_IOC_PROTMODE:
ireq->i_val = ic->ic_protmode;
break;
case IEEE80211_IOC_TXPOWER:
/*
* Tx power limit is the min of max regulatory
* power, any user-set limit, and the max the
* radio can do.
*/
ireq->i_val = 2*ic->ic_curchan->ic_maxregpower;
if (ireq->i_val > ic->ic_txpowlimit)
ireq->i_val = ic->ic_txpowlimit;
if (ireq->i_val > ic->ic_curchan->ic_maxpower)
ireq->i_val = ic->ic_curchan->ic_maxpower;
break;
case IEEE80211_IOC_WPA:
switch (vap->iv_flags & IEEE80211_F_WPA) {
case IEEE80211_F_WPA1:
ireq->i_val = 1;
break;
case IEEE80211_F_WPA2:
ireq->i_val = 2;
break;
case IEEE80211_F_WPA1 | IEEE80211_F_WPA2:
ireq->i_val = 3;
break;
default:
ireq->i_val = 0;
break;
}
break;
case IEEE80211_IOC_CHANLIST:
error = ieee80211_ioctl_getchanlist(vap, ireq);
break;
case IEEE80211_IOC_ROAMING:
ireq->i_val = vap->iv_roaming;
break;
case IEEE80211_IOC_PRIVACY:
ireq->i_val = (vap->iv_flags & IEEE80211_F_PRIVACY) != 0;
break;
case IEEE80211_IOC_DROPUNENCRYPTED:
ireq->i_val = (vap->iv_flags & IEEE80211_F_DROPUNENC) != 0;
break;
case IEEE80211_IOC_COUNTERMEASURES:
ireq->i_val = (vap->iv_flags & IEEE80211_F_COUNTERM) != 0;
break;
case IEEE80211_IOC_WME:
ireq->i_val = (vap->iv_flags & IEEE80211_F_WME) != 0;
break;
case IEEE80211_IOC_HIDESSID:
ireq->i_val = (vap->iv_flags & IEEE80211_F_HIDESSID) != 0;
break;
case IEEE80211_IOC_APBRIDGE:
ireq->i_val = (vap->iv_flags & IEEE80211_F_NOBRIDGE) == 0;
break;
case IEEE80211_IOC_WPAKEY:
error = ieee80211_ioctl_getkey(vap, ireq);
break;
case IEEE80211_IOC_CHANINFO:
error = ieee80211_ioctl_getchaninfo(vap, ireq);
break;
case IEEE80211_IOC_BSSID:
if (ireq->i_len != IEEE80211_ADDR_LEN)
return EINVAL;
error = copyout(vap->iv_state == IEEE80211_S_RUN ?
vap->iv_bss->ni_bssid :
vap->iv_des_bssid,
ireq->i_data, ireq->i_len);
break;
case IEEE80211_IOC_WPAIE:
error = ieee80211_ioctl_getwpaie(vap, ireq, ireq->i_type);
break;
case IEEE80211_IOC_WPAIE2:
error = ieee80211_ioctl_getwpaie(vap, ireq, ireq->i_type);
break;
case IEEE80211_IOC_SCAN_RESULTS:
error = ieee80211_ioctl_getscanresults(vap, ireq);
break;
case IEEE80211_IOC_STA_STATS:
error = ieee80211_ioctl_getstastats(vap, ireq);
break;
case IEEE80211_IOC_TXPOWMAX:
ireq->i_val = vap->iv_bss->ni_txpower;
break;
case IEEE80211_IOC_STA_TXPOW:
error = ieee80211_ioctl_getstatxpow(vap, ireq);
break;
case IEEE80211_IOC_STA_INFO:
error = ieee80211_ioctl_getstainfo(vap, ireq);
break;
case IEEE80211_IOC_WME_CWMIN: /* WME: CWmin */
case IEEE80211_IOC_WME_CWMAX: /* WME: CWmax */
case IEEE80211_IOC_WME_AIFS: /* WME: AIFS */
case IEEE80211_IOC_WME_TXOPLIMIT: /* WME: txops limit */
case IEEE80211_IOC_WME_ACM: /* WME: ACM (bss only) */
case IEEE80211_IOC_WME_ACKPOLICY: /* WME: ACK policy (bss only) */
error = ieee80211_ioctl_getwmeparam(vap, ireq);
break;
case IEEE80211_IOC_DTIM_PERIOD:
ireq->i_val = vap->iv_dtim_period;
break;
case IEEE80211_IOC_BEACON_INTERVAL:
/* NB: get from ic_bss for station mode */
ireq->i_val = vap->iv_bss->ni_intval;
break;
case IEEE80211_IOC_PUREG:
ireq->i_val = (vap->iv_flags & IEEE80211_F_PUREG) != 0;
break;
case IEEE80211_IOC_FF:
ireq->i_val = getathcap(vap, IEEE80211_F_FF);
break;
case IEEE80211_IOC_TURBOP:
ireq->i_val = getathcap(vap, IEEE80211_F_TURBOP);
break;
case IEEE80211_IOC_BGSCAN:
ireq->i_val = (vap->iv_flags & IEEE80211_F_BGSCAN) != 0;
break;
case IEEE80211_IOC_BGSCAN_IDLE:
ireq->i_val = vap->iv_bgscanidle*hz/1000; /* ms */
break;
case IEEE80211_IOC_BGSCAN_INTERVAL:
ireq->i_val = vap->iv_bgscanintvl/hz; /* seconds */
break;
case IEEE80211_IOC_SCANVALID:
ireq->i_val = vap->iv_scanvalid/hz; /* seconds */
break;
case IEEE80211_IOC_FRAGTHRESHOLD:
ireq->i_val = vap->iv_fragthreshold;
break;
case IEEE80211_IOC_MACCMD:
error = ieee80211_ioctl_getmaccmd(vap, ireq);
break;
case IEEE80211_IOC_BURST:
ireq->i_val = (vap->iv_flags & IEEE80211_F_BURST) != 0;
break;
case IEEE80211_IOC_BMISSTHRESHOLD:
ireq->i_val = vap->iv_bmissthreshold;
break;
case IEEE80211_IOC_CURCHAN:
error = ieee80211_ioctl_getcurchan(vap, ireq);
break;
case IEEE80211_IOC_SHORTGI:
ireq->i_val = 0;
if (vap->iv_flags_ext & IEEE80211_FEXT_SHORTGI20)
ireq->i_val |= IEEE80211_HTCAP_SHORTGI20;
if (vap->iv_flags_ext & IEEE80211_FEXT_SHORTGI40)
ireq->i_val |= IEEE80211_HTCAP_SHORTGI40;
break;
case IEEE80211_IOC_AMPDU:
ireq->i_val = 0;
if (vap->iv_flags_ext & IEEE80211_FEXT_AMPDU_TX)
ireq->i_val |= 1;
if (vap->iv_flags_ext & IEEE80211_FEXT_AMPDU_RX)
ireq->i_val |= 2;
break;
case IEEE80211_IOC_AMPDU_LIMIT:
if (vap->iv_opmode == IEEE80211_M_HOSTAP)
ireq->i_val = vap->iv_ampdu_rxmax;
else if (vap->iv_state == IEEE80211_S_RUN)
ireq->i_val = MS(vap->iv_bss->ni_htparam,
IEEE80211_HTCAP_MAXRXAMPDU);
else
ireq->i_val = vap->iv_ampdu_limit;
break;
case IEEE80211_IOC_AMPDU_DENSITY:
if (vap->iv_state == IEEE80211_S_RUN)
ireq->i_val = MS(vap->iv_bss->ni_htparam,
IEEE80211_HTCAP_MPDUDENSITY);
else
ireq->i_val = vap->iv_ampdu_density;
break;
case IEEE80211_IOC_AMSDU:
ireq->i_val = 0;
if (vap->iv_flags_ext & IEEE80211_FEXT_AMSDU_TX)
ireq->i_val |= 1;
if (vap->iv_flags_ext & IEEE80211_FEXT_AMSDU_RX)
ireq->i_val |= 2;
break;
case IEEE80211_IOC_AMSDU_LIMIT:
ireq->i_val = vap->iv_amsdu_limit; /* XXX truncation? */
break;
case IEEE80211_IOC_PUREN:
ireq->i_val = (vap->iv_flags_ext & IEEE80211_FEXT_PUREN) != 0;
break;
case IEEE80211_IOC_DOTH:
ireq->i_val = (vap->iv_flags & IEEE80211_F_DOTH) != 0;
break;
case IEEE80211_IOC_REGDOMAIN:
error = ieee80211_ioctl_getregdomain(vap, ireq);
break;
case IEEE80211_IOC_ROAM:
error = ieee80211_ioctl_getroam(vap, ireq);
break;
case IEEE80211_IOC_TXPARAMS:
error = ieee80211_ioctl_gettxparams(vap, ireq);
break;
case IEEE80211_IOC_HTCOMPAT:
ireq->i_val = (vap->iv_flags_ext & IEEE80211_FEXT_HTCOMPAT) != 0;
break;
case IEEE80211_IOC_DWDS:
ireq->i_val = (vap->iv_flags & IEEE80211_F_DWDS) != 0;
break;
case IEEE80211_IOC_INACTIVITY:
ireq->i_val = (vap->iv_flags_ext & IEEE80211_FEXT_INACT) != 0;
break;
case IEEE80211_IOC_APPIE:
error = ieee80211_ioctl_getappie(vap, ireq);
break;
case IEEE80211_IOC_WPS:
ireq->i_val = (vap->iv_flags_ext & IEEE80211_FEXT_WPS) != 0;
break;
case IEEE80211_IOC_TSN:
ireq->i_val = (vap->iv_flags_ext & IEEE80211_FEXT_TSN) != 0;
break;
case IEEE80211_IOC_DFS:
ireq->i_val = (vap->iv_flags_ext & IEEE80211_FEXT_DFS) != 0;
break;
case IEEE80211_IOC_DOTD:
ireq->i_val = (vap->iv_flags_ext & IEEE80211_FEXT_DOTD) != 0;
break;
case IEEE80211_IOC_DEVCAPS:
error = ieee80211_ioctl_getdevcaps(ic, ireq);
break;
case IEEE80211_IOC_HTPROTMODE:
ireq->i_val = ic->ic_htprotmode;
break;
case IEEE80211_IOC_HTCONF:
if (vap->iv_flags_ext & IEEE80211_FEXT_HT) {
ireq->i_val = 1;
if (vap->iv_flags_ext & IEEE80211_FEXT_USEHT40)
ireq->i_val |= 2;
} else
ireq->i_val = 0;
break;
case IEEE80211_IOC_STA_VLAN:
error = ieee80211_ioctl_getstavlan(vap, ireq);
break;
default:
error = EINVAL;
break;
}
return error;
#undef MS
}
static __noinline int
ieee80211_ioctl_setkey(struct ieee80211vap *vap, struct ieee80211req *ireq)
{
struct ieee80211req_key ik;
struct ieee80211_node *ni;
struct ieee80211_key *wk;
uint16_t kid;
int error, i;
if (ireq->i_len != sizeof(ik))
return EINVAL;
error = copyin(ireq->i_data, &ik, sizeof(ik));
if (error)
return error;
/* NB: cipher support is verified by ieee80211_crypt_newkey */
/* NB: this also checks ik->ik_keylen > sizeof(wk->wk_key) */
if (ik.ik_keylen > sizeof(ik.ik_keydata))
return E2BIG;
kid = ik.ik_keyix;
if (kid == IEEE80211_KEYIX_NONE) {
/* XXX unicast keys currently must be tx/rx */
if (ik.ik_flags != (IEEE80211_KEY_XMIT | IEEE80211_KEY_RECV))
return EINVAL;
if (vap->iv_opmode == IEEE80211_M_STA) {
ni = ieee80211_ref_node(vap->iv_bss);
if (!IEEE80211_ADDR_EQ(ik.ik_macaddr, ni->ni_bssid)) {
ieee80211_free_node(ni);
return EADDRNOTAVAIL;
}
} else {
ni = ieee80211_find_vap_node(&vap->iv_ic->ic_sta, vap,
ik.ik_macaddr);
if (ni == NULL)
return ENOENT;
}
wk = &ni->ni_ucastkey;
} else {
if (kid >= IEEE80211_WEP_NKID)
return EINVAL;
wk = &vap->iv_nw_keys[kid];
/*
* Global slots start off w/o any assigned key index.
* Force one here for consistency with IEEE80211_IOC_WEPKEY.
*/
if (wk->wk_keyix == IEEE80211_KEYIX_NONE)
wk->wk_keyix = kid;
ni = NULL;
}
error = 0;
ieee80211_key_update_begin(vap);
if (ieee80211_crypto_newkey(vap, ik.ik_type, ik.ik_flags, wk)) {
wk->wk_keylen = ik.ik_keylen;
/* NB: MIC presence is implied by cipher type */
if (wk->wk_keylen > IEEE80211_KEYBUF_SIZE)
wk->wk_keylen = IEEE80211_KEYBUF_SIZE;
for (i = 0; i < IEEE80211_TID_SIZE; i++)
wk->wk_keyrsc[i] = ik.ik_keyrsc;
wk->wk_keytsc = 0; /* new key, reset */
memset(wk->wk_key, 0, sizeof(wk->wk_key));
memcpy(wk->wk_key, ik.ik_keydata, ik.ik_keylen);
if (!ieee80211_crypto_setkey(vap, wk,
ni != NULL ? ni->ni_macaddr : ik.ik_macaddr))
error = EIO;
else if ((ik.ik_flags & IEEE80211_KEY_DEFAULT))
vap->iv_def_txkey = kid;
} else
error = ENXIO;
ieee80211_key_update_end(vap);
if (ni != NULL)
ieee80211_free_node(ni);
return error;
}
static __noinline int
ieee80211_ioctl_delkey(struct ieee80211vap *vap, struct ieee80211req *ireq)
{
struct ieee80211req_del_key dk;
int kid, error;
if (ireq->i_len != sizeof(dk))
return EINVAL;
error = copyin(ireq->i_data, &dk, sizeof(dk));
if (error)
return error;
kid = dk.idk_keyix;
/* XXX uint8_t -> uint16_t */
if (dk.idk_keyix == (uint8_t) IEEE80211_KEYIX_NONE) {
struct ieee80211_node *ni;
if (vap->iv_opmode == IEEE80211_M_STA) {
ni = ieee80211_ref_node(vap->iv_bss);
if (!IEEE80211_ADDR_EQ(dk.idk_macaddr, ni->ni_bssid)) {
ieee80211_free_node(ni);
return EADDRNOTAVAIL;
}
} else {
ni = ieee80211_find_vap_node(&vap->iv_ic->ic_sta, vap,
dk.idk_macaddr);
if (ni == NULL)
return ENOENT;
}
/* XXX error return */
ieee80211_node_delucastkey(ni);
ieee80211_free_node(ni);
} else {
if (kid >= IEEE80211_WEP_NKID)
return EINVAL;
/* XXX error return */
ieee80211_crypto_delkey(vap, &vap->iv_nw_keys[kid]);
}
return 0;
}
struct mlmeop {
struct ieee80211vap *vap;
int op;
int reason;
};
static void
mlmedebug(struct ieee80211vap *vap, const uint8_t mac[IEEE80211_ADDR_LEN],
int op, int reason)
{
#ifdef IEEE80211_DEBUG
static const struct {
int mask;
const char *opstr;
} ops[] = {
{ 0, "op#0" },
{ IEEE80211_MSG_IOCTL | IEEE80211_MSG_STATE |
IEEE80211_MSG_ASSOC, "assoc" },
{ IEEE80211_MSG_IOCTL | IEEE80211_MSG_STATE |
IEEE80211_MSG_ASSOC, "disassoc" },
{ IEEE80211_MSG_IOCTL | IEEE80211_MSG_STATE |
IEEE80211_MSG_AUTH, "deauth" },
{ IEEE80211_MSG_IOCTL | IEEE80211_MSG_STATE |
IEEE80211_MSG_AUTH, "authorize" },
{ IEEE80211_MSG_IOCTL | IEEE80211_MSG_STATE |
IEEE80211_MSG_AUTH, "unauthorize" },
};
if (op == IEEE80211_MLME_AUTH) {
IEEE80211_NOTE_MAC(vap, IEEE80211_MSG_IOCTL |
IEEE80211_MSG_STATE | IEEE80211_MSG_AUTH, mac,
"station authenticate %s via MLME (reason %d)",
reason == IEEE80211_STATUS_SUCCESS ? "ACCEPT" : "REJECT",
reason);
} else if (!(IEEE80211_MLME_ASSOC <= op && op <= IEEE80211_MLME_AUTH)) {
IEEE80211_NOTE_MAC(vap, IEEE80211_MSG_ANY, mac,
"unknown MLME request %d (reason %d)", op, reason);
} else if (reason == IEEE80211_STATUS_SUCCESS) {
IEEE80211_NOTE_MAC(vap, ops[op].mask, mac,
"station %s via MLME", ops[op].opstr);
} else {
IEEE80211_NOTE_MAC(vap, ops[op].mask, mac,
"station %s via MLME (reason %d)", ops[op].opstr, reason);
}
#endif /* IEEE80211_DEBUG */
}
static void
domlme(void *arg, struct ieee80211_node *ni)
{
struct mlmeop *mop = arg;
struct ieee80211vap *vap = ni->ni_vap;
if (vap != mop->vap)
return;
/*
* NB: if ni_associd is zero then the node is already cleaned
* up and we don't need to do this (we're safely holding a
* reference but should otherwise not modify it's state).
*/
if (ni->ni_associd == 0)
return;
mlmedebug(vap, ni->ni_macaddr, mop->op, mop->reason);
if (mop->op == IEEE80211_MLME_DEAUTH) {
IEEE80211_SEND_MGMT(ni, IEEE80211_FC0_SUBTYPE_DEAUTH,
mop->reason);
} else {
IEEE80211_SEND_MGMT(ni, IEEE80211_FC0_SUBTYPE_DISASSOC,
mop->reason);
}
ieee80211_node_leave(ni);
}
static int
setmlme_dropsta(struct ieee80211vap *vap,
const uint8_t mac[IEEE80211_ADDR_LEN], struct mlmeop *mlmeop)
{
struct ieee80211com *ic = vap->iv_ic;
struct ieee80211_node_table *nt = &ic->ic_sta;
struct ieee80211_node *ni;
int error = 0;
/* NB: the broadcast address means do 'em all */
if (!IEEE80211_ADDR_EQ(mac, ic->ic_ifp->if_broadcastaddr)) {
IEEE80211_NODE_LOCK(nt);
ni = ieee80211_find_node_locked(nt, mac);
if (ni != NULL) {
domlme(mlmeop, ni);
ieee80211_free_node(ni);
} else
error = ENOENT;
IEEE80211_NODE_UNLOCK(nt);
} else {
ieee80211_iterate_nodes(nt, domlme, mlmeop);
}
return error;
}
static __noinline int
setmlme_common(struct ieee80211vap *vap, int op,
const uint8_t mac[IEEE80211_ADDR_LEN], int reason)
{
struct ieee80211com *ic = vap->iv_ic;
struct ieee80211_node_table *nt = &ic->ic_sta;
struct ieee80211_node *ni;
struct mlmeop mlmeop;
int error;
error = 0;
switch (op) {
case IEEE80211_MLME_DISASSOC:
case IEEE80211_MLME_DEAUTH:
switch (vap->iv_opmode) {
case IEEE80211_M_STA:
mlmedebug(vap, vap->iv_bss->ni_macaddr, op, reason);
/* XXX not quite right */
ieee80211_new_state(vap, IEEE80211_S_INIT, reason);
break;
case IEEE80211_M_HOSTAP:
mlmeop.vap = vap;
mlmeop.op = op;
mlmeop.reason = reason;
error = setmlme_dropsta(vap, mac, &mlmeop);
break;
case IEEE80211_M_WDS:
/* XXX user app should send raw frame? */
if (op != IEEE80211_MLME_DEAUTH) {
error = EINVAL;
break;
}
#if 0
/* XXX accept any address, simplifies user code */
if (!IEEE80211_ADDR_EQ(mac, vap->iv_bss->ni_macaddr)) {
error = EINVAL;
break;
}
#endif
mlmedebug(vap, vap->iv_bss->ni_macaddr, op, reason);
ni = ieee80211_ref_node(vap->iv_bss);
IEEE80211_SEND_MGMT(ni,
IEEE80211_FC0_SUBTYPE_DEAUTH, reason);
ieee80211_free_node(ni);
break;
default:
error = EINVAL;
break;
}
break;
case IEEE80211_MLME_AUTHORIZE:
case IEEE80211_MLME_UNAUTHORIZE:
if (vap->iv_opmode != IEEE80211_M_HOSTAP &&
vap->iv_opmode != IEEE80211_M_WDS) {
error = EINVAL;
break;
}
IEEE80211_NODE_LOCK(nt);
ni = ieee80211_find_vap_node_locked(nt, vap, mac);
if (ni != NULL) {
mlmedebug(vap, mac, op, reason);
if (op == IEEE80211_MLME_AUTHORIZE)
ieee80211_node_authorize(ni);
else
ieee80211_node_unauthorize(ni);
ieee80211_free_node(ni);
} else
error = ENOENT;
IEEE80211_NODE_UNLOCK(nt);
break;
case IEEE80211_MLME_AUTH:
if (vap->iv_opmode != IEEE80211_M_HOSTAP) {
error = EINVAL;
break;
}
IEEE80211_NODE_LOCK(nt);
ni = ieee80211_find_vap_node_locked(nt, vap, mac);
if (ni != NULL) {
mlmedebug(vap, mac, op, reason);
if (reason == IEEE80211_STATUS_SUCCESS) {
IEEE80211_SEND_MGMT(ni,
IEEE80211_FC0_SUBTYPE_AUTH, 2);
/*
* For shared key auth, just continue the
* exchange. Otherwise when 802.1x is not in
* use mark the port authorized at this point
* so traffic can flow.
*/
if (ni->ni_authmode != IEEE80211_AUTH_8021X &&
ni->ni_challenge == NULL)
ieee80211_node_authorize(ni);
} else {
vap->iv_stats.is_rx_acl++;
ieee80211_send_error(ni, ni->ni_macaddr,
IEEE80211_FC0_SUBTYPE_AUTH, 2|(reason<<16));
ieee80211_node_leave(ni);
}
ieee80211_free_node(ni);
} else
error = ENOENT;
IEEE80211_NODE_UNLOCK(nt);
break;
default:
error = EINVAL;
break;
}
return error;
}
struct scanlookup {
const uint8_t *mac;
int esslen;
const uint8_t *essid;
const struct ieee80211_scan_entry *se;
};
/*
* Match mac address and any ssid.
*/
static void
mlmelookup(void *arg, const struct ieee80211_scan_entry *se)
{
struct scanlookup *look = arg;
if (!IEEE80211_ADDR_EQ(look->mac, se->se_macaddr))
return;
if (look->esslen != 0) {
if (se->se_ssid[1] != look->esslen)
return;
if (memcmp(look->essid, se->se_ssid+2, look->esslen))
return;
}
look->se = se;
}
static __noinline int
setmlme_assoc(struct ieee80211vap *vap, const uint8_t mac[IEEE80211_ADDR_LEN],
int ssid_len, const uint8_t ssid[IEEE80211_NWID_LEN])
{
struct scanlookup lookup;
/* XXX ibss/ahdemo */
if (vap->iv_opmode != IEEE80211_M_STA)
return EINVAL;
/* NB: this is racey if roaming is !manual */
lookup.se = NULL;
lookup.mac = mac;
lookup.esslen = ssid_len;
lookup.essid = ssid;
ieee80211_scan_iterate(vap, mlmelookup, &lookup);
if (lookup.se == NULL)
return ENOENT;
mlmedebug(vap, mac, IEEE80211_MLME_ASSOC, 0);
if (!ieee80211_sta_join(vap, lookup.se))
return EIO; /* XXX unique but could be better */
return 0;
}
static __noinline int
ieee80211_ioctl_setmlme(struct ieee80211vap *vap, struct ieee80211req *ireq)
{
struct ieee80211req_mlme mlme;
int error;
if (ireq->i_len != sizeof(mlme))
return EINVAL;
error = copyin(ireq->i_data, &mlme, sizeof(mlme));
if (error)
return error;
if (mlme.im_op == IEEE80211_MLME_ASSOC)
return setmlme_assoc(vap, mlme.im_macaddr,
vap->iv_des_ssid[0].len, vap->iv_des_ssid[0].ssid);
else
return setmlme_common(vap, mlme.im_op,
mlme.im_macaddr, mlme.im_reason);
}
static __noinline int
ieee80211_ioctl_macmac(struct ieee80211vap *vap, struct ieee80211req *ireq)
{
uint8_t mac[IEEE80211_ADDR_LEN];
const struct ieee80211_aclator *acl = vap->iv_acl;
int error;
if (ireq->i_len != sizeof(mac))
return EINVAL;
error = copyin(ireq->i_data, mac, ireq->i_len);
if (error)
return error;
if (acl == NULL) {
acl = ieee80211_aclator_get("mac");
if (acl == NULL || !acl->iac_attach(vap))
return EINVAL;
vap->iv_acl = acl;
}
if (ireq->i_type == IEEE80211_IOC_ADDMAC)
acl->iac_add(vap, mac);
else
acl->iac_remove(vap, mac);
return 0;
}
static __noinline int
ieee80211_ioctl_setmaccmd(struct ieee80211vap *vap, struct ieee80211req *ireq)
{
const struct ieee80211_aclator *acl = vap->iv_acl;
switch (ireq->i_val) {
case IEEE80211_MACCMD_POLICY_OPEN:
case IEEE80211_MACCMD_POLICY_ALLOW:
case IEEE80211_MACCMD_POLICY_DENY:
case IEEE80211_MACCMD_POLICY_RADIUS:
if (acl == NULL) {
acl = ieee80211_aclator_get("mac");
if (acl == NULL || !acl->iac_attach(vap))
return EINVAL;
vap->iv_acl = acl;
}
acl->iac_setpolicy(vap, ireq->i_val);
break;
case IEEE80211_MACCMD_FLUSH:
if (acl != NULL)
acl->iac_flush(vap);
/* NB: silently ignore when not in use */
break;
case IEEE80211_MACCMD_DETACH:
if (acl != NULL) {
vap->iv_acl = NULL;
acl->iac_detach(vap);
}
break;
default:
if (acl == NULL)
return EINVAL;
else
return acl->iac_setioctl(vap, ireq);
}
return 0;
}
static __noinline int
ieee80211_ioctl_setchanlist(struct ieee80211vap *vap, struct ieee80211req *ireq)
{
struct ieee80211com *ic = vap->iv_ic;
struct ieee80211req_chanlist list;
u_char chanlist[IEEE80211_CHAN_BYTES];
int i, j, nchan, error;
if (ireq->i_len != sizeof(list))
return EINVAL;
error = copyin(ireq->i_data, &list, sizeof(list));
if (error)
return error;
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;
nchan = 0;
for (j = 0; i <= IEEE80211_CHAN_MAX; i++, j++) {
/*
* NB: silently discard unavailable channels so users
* can specify 1-255 to get all available channels.
*/
if (isset(list.ic_channels, j) && isset(ic->ic_chan_avail, i)) {
setbit(chanlist, i);
nchan++;
}
}
if (nchan == 0)
return EINVAL;
if (ic->ic_bsschan != IEEE80211_CHAN_ANYC && /* XXX */
isclr(chanlist, ic->ic_bsschan->ic_ieee))
ic->ic_bsschan = IEEE80211_CHAN_ANYC;
memcpy(ic->ic_chan_active, chanlist, sizeof(ic->ic_chan_active));
ieee80211_scan_flush(vap);
return ENETRESET;
}
static __noinline int
ieee80211_ioctl_setstastats(struct ieee80211vap *vap, struct ieee80211req *ireq)
{
struct ieee80211_node *ni;
uint8_t macaddr[IEEE80211_ADDR_LEN];
int error;
/*
* NB: we could copyin ieee80211req_sta_stats so apps
* could make selective changes but that's overkill;
* just clear all stats for now.
*/
if (ireq->i_len < IEEE80211_ADDR_LEN)
return EINVAL;
error = copyin(ireq->i_data, macaddr, IEEE80211_ADDR_LEN);
if (error != 0)
return error;
ni = ieee80211_find_vap_node(&vap->iv_ic->ic_sta, vap, macaddr);
if (ni == NULL)
return ENOENT;
/* XXX require ni_vap == vap? */
memset(&ni->ni_stats, 0, sizeof(ni->ni_stats));
ieee80211_free_node(ni);
return 0;
}
static __noinline int
ieee80211_ioctl_setstatxpow(struct ieee80211vap *vap, struct ieee80211req *ireq)
{
struct ieee80211_node *ni;
struct ieee80211req_sta_txpow txpow;
int error;
if (ireq->i_len != sizeof(txpow))
return EINVAL;
error = copyin(ireq->i_data, &txpow, sizeof(txpow));
if (error != 0)
return error;
ni = ieee80211_find_vap_node(&vap->iv_ic->ic_sta, vap, txpow.it_macaddr);
if (ni == NULL)
return ENOENT;
ni->ni_txpower = txpow.it_txpow;
ieee80211_free_node(ni);
return error;
}
static __noinline int
ieee80211_ioctl_setwmeparam(struct ieee80211vap *vap, struct ieee80211req *ireq)
{
struct ieee80211com *ic = vap->iv_ic;
struct ieee80211_wme_state *wme = &ic->ic_wme;
struct wmeParams *wmep, *chanp;
int isbss, ac;
if ((ic->ic_caps & IEEE80211_C_WME) == 0)
return EOPNOTSUPP;
isbss = (ireq->i_len & IEEE80211_WMEPARAM_BSS);
ac = (ireq->i_len & IEEE80211_WMEPARAM_VAL);
if (ac >= WME_NUM_AC)
ac = WME_AC_BE;
if (isbss) {
chanp = &wme->wme_bssChanParams.cap_wmeParams[ac];
wmep = &wme->wme_wmeBssChanParams.cap_wmeParams[ac];
} else {
chanp = &wme->wme_chanParams.cap_wmeParams[ac];
wmep = &wme->wme_wmeChanParams.cap_wmeParams[ac];
}
switch (ireq->i_type) {
case IEEE80211_IOC_WME_CWMIN: /* WME: CWmin */
if (isbss) {
wmep->wmep_logcwmin = ireq->i_val;
if ((wme->wme_flags & WME_F_AGGRMODE) == 0)
chanp->wmep_logcwmin = ireq->i_val;
} else {
wmep->wmep_logcwmin = chanp->wmep_logcwmin =
ireq->i_val;
}
break;
case IEEE80211_IOC_WME_CWMAX: /* WME: CWmax */
if (isbss) {
wmep->wmep_logcwmax = ireq->i_val;
if ((wme->wme_flags & WME_F_AGGRMODE) == 0)
chanp->wmep_logcwmax = ireq->i_val;
} else {
wmep->wmep_logcwmax = chanp->wmep_logcwmax =
ireq->i_val;
}
break;
case IEEE80211_IOC_WME_AIFS: /* WME: AIFS */
if (isbss) {
wmep->wmep_aifsn = ireq->i_val;
if ((wme->wme_flags & WME_F_AGGRMODE) == 0)
chanp->wmep_aifsn = ireq->i_val;
} else {
wmep->wmep_aifsn = chanp->wmep_aifsn = ireq->i_val;
}
break;
case IEEE80211_IOC_WME_TXOPLIMIT: /* WME: txops limit */
if (isbss) {
wmep->wmep_txopLimit = ireq->i_val;
if ((wme->wme_flags & WME_F_AGGRMODE) == 0)
chanp->wmep_txopLimit = ireq->i_val;
} else {
wmep->wmep_txopLimit = chanp->wmep_txopLimit =
ireq->i_val;
}
break;
case IEEE80211_IOC_WME_ACM: /* WME: ACM (bss only) */
wmep->wmep_acm = ireq->i_val;
if ((wme->wme_flags & WME_F_AGGRMODE) == 0)
chanp->wmep_acm = ireq->i_val;
break;
case IEEE80211_IOC_WME_ACKPOLICY: /* WME: ACK policy (!bss only)*/
wmep->wmep_noackPolicy = chanp->wmep_noackPolicy =
(ireq->i_val) == 0;
break;
}
ieee80211_wme_updateparams(vap);
return 0;
}
static int
find11gchannel(struct ieee80211com *ic, int start, int freq)
{
const struct ieee80211_channel *c;
int i;
for (i = start+1; i < ic->ic_nchans; i++) {
c = &ic->ic_channels[i];
if (c->ic_freq == freq && IEEE80211_IS_CHAN_ANYG(c))
return 1;
}
/* NB: should not be needed but in case things are mis-sorted */
for (i = 0; i < start; i++) {
c = &ic->ic_channels[i];
if (c->ic_freq == freq && IEEE80211_IS_CHAN_ANYG(c))
return 1;
}
return 0;
}
static struct ieee80211_channel *
findchannel(struct ieee80211com *ic, int ieee, int mode)
{
static const u_int chanflags[IEEE80211_MODE_MAX] = {
0, /* IEEE80211_MODE_AUTO */
IEEE80211_CHAN_A, /* IEEE80211_MODE_11A */
IEEE80211_CHAN_B, /* IEEE80211_MODE_11B */
IEEE80211_CHAN_G, /* IEEE80211_MODE_11G */
IEEE80211_CHAN_FHSS, /* IEEE80211_MODE_FH */
IEEE80211_CHAN_108A, /* IEEE80211_MODE_TURBO_A */
IEEE80211_CHAN_108G, /* IEEE80211_MODE_TURBO_G */
IEEE80211_CHAN_STURBO, /* IEEE80211_MODE_STURBO_A */
/* NB: handled specially below */
IEEE80211_CHAN_A, /* IEEE80211_MODE_11NA */
IEEE80211_CHAN_G, /* IEEE80211_MODE_11NG */
};
u_int modeflags;
int i;
modeflags = chanflags[mode];
for (i = 0; i < ic->ic_nchans; i++) {
struct ieee80211_channel *c = &ic->ic_channels[i];
if (c->ic_ieee != ieee)
continue;
if (mode == IEEE80211_MODE_AUTO) {
/* ignore turbo channels for autoselect */
if (IEEE80211_IS_CHAN_TURBO(c))
continue;
/*
* XXX special-case 11b/g channels so we
* always select the g channel if both
* are present.
* XXX prefer HT to non-HT?
*/
if (!IEEE80211_IS_CHAN_B(c) ||
!find11gchannel(ic, i, c->ic_freq))
return c;
} else {
/* must check HT specially */
if ((mode == IEEE80211_MODE_11NA ||
mode == IEEE80211_MODE_11NG) &&
!IEEE80211_IS_CHAN_HT(c))
continue;
if ((c->ic_flags & modeflags) == modeflags)
return c;
}
}
return NULL;
}
/*
* Check the specified against any desired mode (aka netband).
* This is only used (presently) when operating in hostap mode
* to enforce consistency.
*/
static int
check_mode_consistency(const struct ieee80211_channel *c, int mode)
{
KASSERT(c != IEEE80211_CHAN_ANYC, ("oops, no channel"));
switch (mode) {
case IEEE80211_MODE_11B:
return (IEEE80211_IS_CHAN_B(c));
case IEEE80211_MODE_11G:
return (IEEE80211_IS_CHAN_ANYG(c) && !IEEE80211_IS_CHAN_HT(c));
case IEEE80211_MODE_11A:
return (IEEE80211_IS_CHAN_A(c) && !IEEE80211_IS_CHAN_HT(c));
case IEEE80211_MODE_STURBO_A:
return (IEEE80211_IS_CHAN_STURBO(c));
case IEEE80211_MODE_11NA:
return (IEEE80211_IS_CHAN_HTA(c));
case IEEE80211_MODE_11NG:
return (IEEE80211_IS_CHAN_HTG(c));
}
return 1;
}
/*
* Common code to set the current channel. If the device
* is up and running this may result in an immediate channel
* change or a kick of the state machine.
*/
static int
setcurchan(struct ieee80211vap *vap, struct ieee80211_channel *c)
{
struct ieee80211com *ic = vap->iv_ic;
int error;
if (c != IEEE80211_CHAN_ANYC) {
if (IEEE80211_IS_CHAN_RADAR(c))
return EBUSY; /* XXX better code? */
if (vap->iv_opmode == IEEE80211_M_HOSTAP) {
if (IEEE80211_IS_CHAN_NOHOSTAP(c))
return EINVAL;
if (!check_mode_consistency(c, vap->iv_des_mode))
return EINVAL;
} else if (vap->iv_opmode == IEEE80211_M_IBSS) {
if (IEEE80211_IS_CHAN_NOADHOC(c))
return EINVAL;
}
if (vap->iv_state == IEEE80211_S_RUN &&
vap->iv_bss->ni_chan == c)
return 0; /* NB: nothing to do */
}
vap->iv_des_chan = c;
error = 0;
if (vap->iv_opmode == IEEE80211_M_MONITOR &&
vap->iv_des_chan != IEEE80211_CHAN_ANYC) {
/*
* Monitor mode can switch directly.
*/
if (IFNET_IS_UP_RUNNING(vap->iv_ifp)) {
/* XXX need state machine for other vap's to follow */
ieee80211_setcurchan(ic, vap->iv_des_chan);
vap->iv_bss->ni_chan = ic->ic_curchan;
} else
ic->ic_curchan = vap->iv_des_chan;
} else {
/*
* Need to go through the state machine in case we
* need to reassociate or the like. The state machine
* will pickup the desired channel and avoid scanning.
*/
if (IS_UP_AUTO(vap))
ieee80211_new_state(vap, IEEE80211_S_SCAN, 0);
else if (vap->iv_des_chan != IEEE80211_CHAN_ANYC) {
/*
* When not up+running and a real channel has
* been specified fix the current channel so
* there is immediate feedback; e.g. via ifconfig.
*/
ic->ic_curchan = vap->iv_des_chan;
}
}
return error;
}
/*
* Old api for setting the current channel; this is
* deprecated because channel numbers are ambiguous.
*/
static __noinline int
ieee80211_ioctl_setchannel(struct ieee80211vap *vap,
const struct ieee80211req *ireq)
{
struct ieee80211com *ic = vap->iv_ic;
struct ieee80211_channel *c;
/* XXX 0xffff overflows 16-bit signed */
if (ireq->i_val == 0 ||
ireq->i_val == (int16_t) IEEE80211_CHAN_ANY) {
c = IEEE80211_CHAN_ANYC;
} else if ((u_int) ireq->i_val > IEEE80211_CHAN_MAX) {
return EINVAL;
} else {
struct ieee80211_channel *c2;
c = findchannel(ic, ireq->i_val, vap->iv_des_mode);
if (c == NULL) {
c = findchannel(ic, ireq->i_val,
IEEE80211_MODE_AUTO);
if (c == NULL)
return EINVAL;
}
/*
* Fine tune channel selection based on desired mode:
* if 11b is requested, find the 11b version of any
* 11g channel returned,
* if static turbo, find the turbo version of any
* 11a channel return,
* if 11na is requested, find the ht version of any
* 11a channel returned,
* if 11ng is requested, find the ht version of any
* 11g channel returned,
* otherwise we should be ok with what we've got.
*/
switch (vap->iv_des_mode) {
case IEEE80211_MODE_11B:
if (IEEE80211_IS_CHAN_ANYG(c)) {
c2 = findchannel(ic, ireq->i_val,
IEEE80211_MODE_11B);
/* NB: should not happen, =>'s 11g w/o 11b */
if (c2 != NULL)
c = c2;
}
break;
case IEEE80211_MODE_TURBO_A:
if (IEEE80211_IS_CHAN_A(c)) {
c2 = findchannel(ic, ireq->i_val,
IEEE80211_MODE_TURBO_A);
if (c2 != NULL)
c = c2;
}
break;
case IEEE80211_MODE_11NA:
if (IEEE80211_IS_CHAN_A(c)) {
c2 = findchannel(ic, ireq->i_val,
IEEE80211_MODE_11NA);
if (c2 != NULL)
c = c2;
}
break;
case IEEE80211_MODE_11NG:
if (IEEE80211_IS_CHAN_ANYG(c)) {
c2 = findchannel(ic, ireq->i_val,
IEEE80211_MODE_11NG);
if (c2 != NULL)
c = c2;
}
break;
default: /* NB: no static turboG */
break;
}
}
return setcurchan(vap, c);
}
/*
* New/current api for setting the current channel; a complete
* channel description is provide so there is no ambiguity in
* identifying the channel.
*/
static __noinline int
ieee80211_ioctl_setcurchan(struct ieee80211vap *vap,
const struct ieee80211req *ireq)
{
struct ieee80211com *ic = vap->iv_ic;
struct ieee80211_channel chan, *c;
int error;
if (ireq->i_len != sizeof(chan))
return EINVAL;
error = copyin(ireq->i_data, &chan, sizeof(chan));
if (error != 0)
return error;
/* XXX 0xffff overflows 16-bit signed */
if (chan.ic_freq == 0 || chan.ic_freq == IEEE80211_CHAN_ANY) {
c = IEEE80211_CHAN_ANYC;
} else {
c = ieee80211_find_channel(ic, chan.ic_freq, chan.ic_flags);
if (c == NULL)
return EINVAL;
}
return setcurchan(vap, c);
}
static __noinline int
ieee80211_ioctl_setregdomain(struct ieee80211vap *vap,
const struct ieee80211req *ireq)
{
struct ieee80211_regdomain_req *reg;
int error;
if (ireq->i_len != sizeof(struct ieee80211_regdomain_req))
return EINVAL;
MALLOC(reg, struct ieee80211_regdomain_req *,
sizeof(struct ieee80211_regdomain_req), M_TEMP, M_NOWAIT);
if (reg == NULL)
return ENOMEM;
error = copyin(ireq->i_data, reg, sizeof(*reg));
if (error == 0)
error = ieee80211_setregdomain(vap, reg);
FREE(reg, M_TEMP);
return (error == 0 ? ENETRESET : error);
}
static int
ieee80211_ioctl_setroam(struct ieee80211vap *vap,
const struct ieee80211req *ireq)
{
if (ireq->i_len != sizeof(vap->iv_roamparms))
return EINVAL;
/* XXX validate params */
/* XXX? ENETRESET to push to device? */
return copyin(ireq->i_data, vap->iv_roamparms,
sizeof(vap->iv_roamparms));
}
static int
checkrate(const struct ieee80211_rateset *rs, int rate)
{
int i;
if (rate == IEEE80211_FIXED_RATE_NONE)
return 1;
for (i = 0; i < rs->rs_nrates; i++)
if ((rs->rs_rates[i] & IEEE80211_RATE_VAL) == rate)
return 1;
return 0;
}
static int
checkmcs(int mcs)
{
if (mcs == IEEE80211_FIXED_RATE_NONE)
return 1;
if ((mcs & IEEE80211_RATE_MCS) == 0) /* MCS always have 0x80 set */
return 0;
return (mcs & 0x7f) <= 15; /* XXX could search ht rate set */
}
static __noinline int
ieee80211_ioctl_settxparams(struct ieee80211vap *vap,
const struct ieee80211req *ireq)
{
struct ieee80211com *ic = vap->iv_ic;
struct ieee80211_txparams_req parms; /* XXX stack use? */
struct ieee80211_txparam *src, *dst;
const struct ieee80211_rateset *rs;
int error, i, changed;
if (ireq->i_len != sizeof(parms))
return EINVAL;
error = copyin(ireq->i_data, &parms, sizeof(parms));
if (error != 0)
return error;
changed = 0;
/* validate parameters and check if anything changed */
for (i = IEEE80211_MODE_11A; i < IEEE80211_MODE_11NA; i++) {
if (isclr(ic->ic_modecaps, i))
continue;
src = &parms.params[i];
dst = &vap->iv_txparms[i];
rs = &ic->ic_sup_rates[i];
if (src->ucastrate != dst->ucastrate) {
if (!checkrate(rs, src->ucastrate))
return EINVAL;
changed++;
}
if (src->mcastrate != dst->mcastrate) {
if (!checkrate(rs, src->mcastrate))
return EINVAL;
changed++;
}
if (src->mgmtrate != dst->mgmtrate) {
if (!checkrate(rs, src->mgmtrate))
return EINVAL;
changed++;
}
if (src->maxretry != dst->maxretry) /* NB: no bounds */
changed++;
}
/* 11n parameters are handled differently */
for (; i < IEEE80211_MODE_MAX; i++) {
if (isclr(ic->ic_modecaps, i))
continue;
src = &parms.params[i];
dst = &vap->iv_txparms[i];
rs = &ic->ic_sup_rates[i == IEEE80211_MODE_11NA ?
IEEE80211_MODE_11A : IEEE80211_MODE_11G];
if (src->ucastrate != dst->ucastrate) {
if (!checkmcs(src->ucastrate) &&
!checkrate(rs, src->ucastrate))
return EINVAL;
changed++;
}
if (src->mcastrate != dst->mcastrate) {
if (!checkmcs(src->mcastrate) &&
!checkrate(rs, src->mcastrate))
return EINVAL;
changed++;
}
if (src->mgmtrate != dst->mgmtrate) {
if (!checkmcs(src->mgmtrate) &&
!checkrate(rs, src->mgmtrate))
return EINVAL;
changed++;
}
if (src->maxretry != dst->maxretry) /* NB: no bounds */
changed++;
}
if (changed) {
/*
* Copy new parameters in place and notify the
* driver so it can push state to the device.
*/
for (i = IEEE80211_MODE_11A; i < IEEE80211_MODE_MAX; i++) {
if (isset(ic->ic_modecaps, i))
vap->iv_txparms[i] = parms.params[i];
}
/* XXX could be more intelligent,
e.g. don't reset if setting not being used */
return ENETRESET;
}
return 0;
}
/*
* Application Information Element support.
*/
static int
setappie(struct ieee80211_appie **aie, const struct ieee80211req *ireq)
{
struct ieee80211_appie *app = *aie;
struct ieee80211_appie *napp;
int error;
if (ireq->i_len == 0) { /* delete any existing ie */
if (app != NULL) {
*aie = NULL; /* XXX racey */
FREE(app, M_80211_NODE_IE);
}
return 0;
}
if (!(2 <= ireq->i_len && ireq->i_len <= IEEE80211_MAX_APPIE))
return EINVAL;
/*
* Allocate a new appie structure and copy in the user data.
* When done swap in the new structure. Note that we do not
* guard against users holding a ref to the old structure;
* this must be handled outside this code.
*
* XXX bad bad bad
*/
MALLOC(napp, struct ieee80211_appie *,
sizeof(struct ieee80211_appie) + ireq->i_len, M_80211_NODE_IE, M_NOWAIT);
if (napp == NULL)
return ENOMEM;
/* XXX holding ic lock */
error = copyin(ireq->i_data, napp->ie_data, ireq->i_len);
if (error) {
FREE(napp, M_80211_NODE_IE);
return error;
}
napp->ie_len = ireq->i_len;
*aie = napp;
if (app != NULL)
FREE(app, M_80211_NODE_IE);
return 0;
}
static void
setwparsnie(struct ieee80211vap *vap, uint8_t *ie, int space)
{
/* validate data is present as best we can */
if (space == 0 || 2+ie[1] > space)
return;
if (ie[0] == IEEE80211_ELEMID_VENDOR)
vap->iv_wpa_ie = ie;
else if (ie[0] == IEEE80211_ELEMID_RSN)
vap->iv_rsn_ie = ie;
}
static __noinline int
ieee80211_ioctl_setappie_locked(struct ieee80211vap *vap,
const struct ieee80211req *ireq, int fc0)
{
int error;
IEEE80211_LOCK_ASSERT(vap->iv_ic);
switch (fc0 & IEEE80211_FC0_SUBTYPE_MASK) {
case IEEE80211_FC0_SUBTYPE_BEACON:
if (vap->iv_opmode != IEEE80211_M_HOSTAP &&
vap->iv_opmode != IEEE80211_M_IBSS) {
error = EINVAL;
break;
}
error = setappie(&vap->iv_appie_beacon, ireq);
if (error == 0)
ieee80211_beacon_notify(vap, IEEE80211_BEACON_APPIE);
break;
case IEEE80211_FC0_SUBTYPE_PROBE_RESP:
error = setappie(&vap->iv_appie_proberesp, ireq);
break;
case IEEE80211_FC0_SUBTYPE_ASSOC_RESP:
if (vap->iv_opmode == IEEE80211_M_HOSTAP)
error = setappie(&vap->iv_appie_assocresp, ireq);
else
error = EINVAL;
break;
case IEEE80211_FC0_SUBTYPE_PROBE_REQ:
error = setappie(&vap->iv_appie_probereq, ireq);
break;
case IEEE80211_FC0_SUBTYPE_ASSOC_REQ:
if (vap->iv_opmode == IEEE80211_M_STA)
error = setappie(&vap->iv_appie_assocreq, ireq);
else
error = EINVAL;
break;
case (IEEE80211_APPIE_WPA & IEEE80211_FC0_SUBTYPE_MASK):
error = setappie(&vap->iv_appie_wpa, ireq);
if (error == 0) {
/*
* Must split single blob of data into separate
* WPA and RSN ie's because they go in different
* locations in the mgt frames.
* XXX use IEEE80211_IOC_WPA2 so user code does split
*/
vap->iv_wpa_ie = NULL;
vap->iv_rsn_ie = NULL;
if (vap->iv_appie_wpa != NULL) {
struct ieee80211_appie *appie =
vap->iv_appie_wpa;
uint8_t *data = appie->ie_data;
/* XXX ie length validate is painful, cheat */
setwparsnie(vap, data, appie->ie_len);
setwparsnie(vap, data + 2 + data[1],
appie->ie_len - (2 + data[1]));
}
if (vap->iv_opmode == IEEE80211_M_HOSTAP ||
vap->iv_opmode == IEEE80211_M_IBSS) {
/*
* Must rebuild beacon frame as the update
* mechanism doesn't handle WPA/RSN ie's.
* Could extend it but it doesn't normally
* change; this is just to deal with hostapd
* plumbing the ie after the interface is up.
*/
error = ENETRESET;
}
}
break;
default:
error = EINVAL;
break;
}
return error;
}
static __noinline int
ieee80211_ioctl_setappie(struct ieee80211vap *vap,
const struct ieee80211req *ireq)
{
struct ieee80211com *ic = vap->iv_ic;
int error;
uint8_t fc0;
fc0 = ireq->i_val & 0xff;
if ((fc0 & IEEE80211_FC0_TYPE_MASK) != IEEE80211_FC0_TYPE_MGT)
return EINVAL;
/* NB: could check iv_opmode and reject but hardly worth the effort */
IEEE80211_LOCK(ic);
error = ieee80211_ioctl_setappie_locked(vap, ireq, fc0);
IEEE80211_UNLOCK(ic);
return error;
}
static __noinline int
ieee80211_ioctl_chanswitch(struct ieee80211vap *vap, struct ieee80211req *ireq)
{
struct ieee80211com *ic = vap->iv_ic;
struct ieee80211_chanswitch_req csr;
struct ieee80211_channel *c;
int error;
if (ireq->i_len != sizeof(csr))
return EINVAL;
error = copyin(ireq->i_data, &csr, sizeof(csr));
if (error != 0)
return error;
if ((vap->iv_flags & IEEE80211_F_DOTH) == 0)
return EINVAL;
c = ieee80211_find_channel(ic,
csr.csa_chan.ic_freq, csr.csa_chan.ic_flags);
if (c == NULL)
return ENOENT;
IEEE80211_LOCK(ic);
if ((ic->ic_flags & IEEE80211_F_CSAPENDING) == 0)
ieee80211_csa_startswitch(ic, c, csr.csa_mode, csr.csa_count);
else
error = EBUSY;
IEEE80211_UNLOCK(ic);
return error;
}
static __noinline int
ieee80211_ioctl_scanreq(struct ieee80211vap *vap, struct ieee80211req *ireq)
{
#define IEEE80211_IOC_SCAN_FLAGS \
(IEEE80211_IOC_SCAN_NOPICK | IEEE80211_IOC_SCAN_ACTIVE | \
IEEE80211_IOC_SCAN_PICK1ST | IEEE80211_IOC_SCAN_BGSCAN | \
IEEE80211_IOC_SCAN_ONCE | IEEE80211_IOC_SCAN_NOBCAST | \
IEEE80211_IOC_SCAN_NOJOIN | IEEE80211_IOC_SCAN_FLUSH | \
IEEE80211_IOC_SCAN_CHECK)
struct ieee80211com *ic = vap->iv_ic;
struct ieee80211_scan_req sr; /* XXX off stack? */
int error, i;
/* NB: parent must be running */
if ((ic->ic_ifp->if_drv_flags & IFF_DRV_RUNNING) == 0)
return ENXIO;
if (ireq->i_len != sizeof(sr))
return EINVAL;
error = copyin(ireq->i_data, &sr, sizeof(sr));
if (error != 0)
return error;
/* convert duration */
if (sr.sr_duration == IEEE80211_IOC_SCAN_FOREVER)
sr.sr_duration = IEEE80211_SCAN_FOREVER;
else {
if (sr.sr_duration < IEEE80211_IOC_SCAN_DURATION_MIN ||
sr.sr_duration > IEEE80211_IOC_SCAN_DURATION_MAX)
return EINVAL;
sr.sr_duration = msecs_to_ticks(sr.sr_duration);
if (sr.sr_duration < 1)
sr.sr_duration = 1;
}
/* convert min/max channel dwell */
if (sr.sr_mindwell != 0) {
sr.sr_mindwell = msecs_to_ticks(sr.sr_mindwell);
if (sr.sr_mindwell < 1)
sr.sr_mindwell = 1;
}
if (sr.sr_maxdwell != 0) {
sr.sr_maxdwell = msecs_to_ticks(sr.sr_maxdwell);
if (sr.sr_maxdwell < 1)
sr.sr_maxdwell = 1;
}
/* NB: silently reduce ssid count to what is supported */
if (sr.sr_nssid > IEEE80211_SCAN_MAX_SSID)
sr.sr_nssid = IEEE80211_SCAN_MAX_SSID;
for (i = 0; i < sr.sr_nssid; i++)
if (sr.sr_ssid[i].len > IEEE80211_NWID_LEN)
return EINVAL;
/* cleanse flags just in case, could reject if invalid flags */
sr.sr_flags &= IEEE80211_IOC_SCAN_FLAGS;
/*
* Add an implicit NOPICK if the vap is not marked UP. This
* allows applications to scan without joining a bss (or picking
* a channel and setting up a bss) and without forcing manual
* roaming mode--you just need to mark the parent device UP.
*/
if ((vap->iv_ifp->if_flags & IFF_UP) == 0)
sr.sr_flags |= IEEE80211_IOC_SCAN_NOPICK;
IEEE80211_DPRINTF(vap, IEEE80211_MSG_SCAN,
"%s: flags 0x%x%s duration 0x%x mindwell %u maxdwell %u nssid %d\n",
__func__, sr.sr_flags,
(vap->iv_ifp->if_flags & IFF_UP) == 0 ? " (!IFF_UP)" : "",
sr.sr_duration, sr.sr_mindwell, sr.sr_maxdwell, sr.sr_nssid);
/*
* If we are in INIT state then the driver has never had a chance
* to setup hardware state to do a scan; we must use the state
* machine to get us up to the SCAN state but once we reach SCAN
* state we then want to use the supplied params. Stash the
* parameters in the vap and mark IEEE80211_FEXT_SCANREQ; the
* state machines will recognize this and use the stashed params
* to issue the scan request.
*
* Otherwise just invoke the scan machinery directly.
*/
IEEE80211_LOCK(ic);
if (vap->iv_state == IEEE80211_S_INIT) {
/* NB: clobbers previous settings */
vap->iv_scanreq_flags = sr.sr_flags;
vap->iv_scanreq_duration = sr.sr_duration;
vap->iv_scanreq_nssid = sr.sr_nssid;
for (i = 0; i < sr.sr_nssid; i++) {
vap->iv_scanreq_ssid[i].len = sr.sr_ssid[i].len;
memcpy(vap->iv_scanreq_ssid[i].ssid, sr.sr_ssid[i].ssid,
sr.sr_ssid[i].len);
}
vap->iv_flags_ext |= IEEE80211_FEXT_SCANREQ;
IEEE80211_UNLOCK(ic);
ieee80211_new_state(vap, IEEE80211_S_SCAN, 0);
} else {
vap->iv_flags_ext &= ~IEEE80211_FEXT_SCANREQ;
IEEE80211_UNLOCK(ic);
/* XXX neeed error return codes */
if (sr.sr_flags & IEEE80211_IOC_SCAN_CHECK) {
(void) ieee80211_check_scan(vap, sr.sr_flags,
sr.sr_duration, sr.sr_mindwell, sr.sr_maxdwell,
sr.sr_nssid,
/* NB: cheat, we assume structures are compatible */
(const struct ieee80211_scan_ssid *) &sr.sr_ssid[0]);
} else {
(void) ieee80211_start_scan(vap, sr.sr_flags,
sr.sr_duration, sr.sr_mindwell, sr.sr_maxdwell,
sr.sr_nssid,
/* NB: cheat, we assume structures are compatible */
(const struct ieee80211_scan_ssid *) &sr.sr_ssid[0]);
}
}
return error;
#undef IEEE80211_IOC_SCAN_FLAGS
}
static __noinline int
ieee80211_ioctl_setstavlan(struct ieee80211vap *vap, struct ieee80211req *ireq)
{
struct ieee80211_node *ni;
struct ieee80211req_sta_vlan vlan;
int error;
if (ireq->i_len != sizeof(vlan))
return EINVAL;
error = copyin(ireq->i_data, &vlan, sizeof(vlan));
if (error != 0)
return error;
if (!IEEE80211_ADDR_EQ(vlan.sv_macaddr, zerobssid)) {
ni = ieee80211_find_vap_node(&vap->iv_ic->ic_sta, vap,
vlan.sv_macaddr);
if (ni == NULL)
return ENOENT;
} else
ni = ieee80211_ref_node(vap->iv_bss);
ni->ni_vlan = vlan.sv_vlan;
ieee80211_free_node(ni);
return error;
}
static int
isvap11g(const struct ieee80211vap *vap)
{
const struct ieee80211_node *bss = vap->iv_bss;
return bss->ni_chan != IEEE80211_CHAN_ANYC &&
IEEE80211_IS_CHAN_ANYG(bss->ni_chan);
}
static int
isvapht(const struct ieee80211vap *vap)
{
const struct ieee80211_node *bss = vap->iv_bss;
return bss->ni_chan != IEEE80211_CHAN_ANYC &&
IEEE80211_IS_CHAN_HT(bss->ni_chan);
}
static __noinline int
ieee80211_ioctl_set80211(struct ieee80211vap *vap, u_long cmd, struct ieee80211req *ireq)
{
struct ieee80211com *ic = vap->iv_ic;
int error;
const struct ieee80211_authenticator *auth;
uint8_t tmpkey[IEEE80211_KEYBUF_SIZE];
char tmpssid[IEEE80211_NWID_LEN];
uint8_t tmpbssid[IEEE80211_ADDR_LEN];
struct ieee80211_key *k;
u_int kid;
error = 0;
switch (ireq->i_type) {
case IEEE80211_IOC_SSID:
if (ireq->i_val != 0 ||
ireq->i_len > IEEE80211_NWID_LEN)
return EINVAL;
error = copyin(ireq->i_data, tmpssid, ireq->i_len);
if (error)
break;
memset(vap->iv_des_ssid[0].ssid, 0, IEEE80211_NWID_LEN);
vap->iv_des_ssid[0].len = ireq->i_len;
memcpy(vap->iv_des_ssid[0].ssid, tmpssid, ireq->i_len);
vap->iv_des_nssid = (ireq->i_len > 0);
error = ENETRESET;
break;
case IEEE80211_IOC_WEP:
switch (ireq->i_val) {
case IEEE80211_WEP_OFF:
vap->iv_flags &= ~IEEE80211_F_PRIVACY;
vap->iv_flags &= ~IEEE80211_F_DROPUNENC;
break;
case IEEE80211_WEP_ON:
vap->iv_flags |= IEEE80211_F_PRIVACY;
vap->iv_flags |= IEEE80211_F_DROPUNENC;
break;
case IEEE80211_WEP_MIXED:
vap->iv_flags |= IEEE80211_F_PRIVACY;
vap->iv_flags &= ~IEEE80211_F_DROPUNENC;
break;
}
error = ENETRESET;
break;
case IEEE80211_IOC_WEPKEY:
kid = (u_int) ireq->i_val;
if (kid >= IEEE80211_WEP_NKID)
return EINVAL;
k = &vap->iv_nw_keys[kid];
if (ireq->i_len == 0) {
/* zero-len =>'s delete any existing key */
(void) ieee80211_crypto_delkey(vap, k);
break;
}
if (ireq->i_len > sizeof(tmpkey))
return EINVAL;
memset(tmpkey, 0, sizeof(tmpkey));
error = copyin(ireq->i_data, tmpkey, ireq->i_len);
if (error)
break;
ieee80211_key_update_begin(vap);
k->wk_keyix = kid; /* NB: force fixed key id */
if (ieee80211_crypto_newkey(vap, IEEE80211_CIPHER_WEP,
IEEE80211_KEY_XMIT | IEEE80211_KEY_RECV, k)) {
k->wk_keylen = ireq->i_len;
memcpy(k->wk_key, tmpkey, sizeof(tmpkey));
if (!ieee80211_crypto_setkey(vap, k, vap->iv_myaddr))
error = EINVAL;
} else
error = EINVAL;
ieee80211_key_update_end(vap);
break;
case IEEE80211_IOC_WEPTXKEY:
kid = (u_int) ireq->i_val;
if (kid >= IEEE80211_WEP_NKID &&
(uint16_t) kid != IEEE80211_KEYIX_NONE)
return EINVAL;
vap->iv_def_txkey = kid;
break;
case IEEE80211_IOC_AUTHMODE:
switch (ireq->i_val) {
case IEEE80211_AUTH_WPA:
case IEEE80211_AUTH_8021X: /* 802.1x */
case IEEE80211_AUTH_OPEN: /* open */
case IEEE80211_AUTH_SHARED: /* shared-key */
case IEEE80211_AUTH_AUTO: /* auto */
auth = ieee80211_authenticator_get(ireq->i_val);
if (auth == NULL)
return EINVAL;
break;
default:
return EINVAL;
}
switch (ireq->i_val) {
case IEEE80211_AUTH_WPA: /* WPA w/ 802.1x */
vap->iv_flags |= IEEE80211_F_PRIVACY;
ireq->i_val = IEEE80211_AUTH_8021X;
break;
case IEEE80211_AUTH_OPEN: /* open */
vap->iv_flags &= ~(IEEE80211_F_WPA|IEEE80211_F_PRIVACY);
break;
case IEEE80211_AUTH_SHARED: /* shared-key */
case IEEE80211_AUTH_8021X: /* 802.1x */
vap->iv_flags &= ~IEEE80211_F_WPA;
/* both require a key so mark the PRIVACY capability */
vap->iv_flags |= IEEE80211_F_PRIVACY;
break;
case IEEE80211_AUTH_AUTO: /* auto */
vap->iv_flags &= ~IEEE80211_F_WPA;
/* XXX PRIVACY handling? */
/* XXX what's the right way to do this? */
break;
}
/* NB: authenticator attach/detach happens on state change */
vap->iv_bss->ni_authmode = ireq->i_val;
/* XXX mixed/mode/usage? */
vap->iv_auth = auth;
error = ENETRESET;
break;
case IEEE80211_IOC_CHANNEL:
error = ieee80211_ioctl_setchannel(vap, ireq);
break;
case IEEE80211_IOC_POWERSAVE:
switch (ireq->i_val) {
case IEEE80211_POWERSAVE_OFF:
if (vap->iv_flags & IEEE80211_F_PMGTON) {
ieee80211_syncflag(vap, -IEEE80211_F_PMGTON);
error = ERESTART;
}
break;
case IEEE80211_POWERSAVE_ON:
if ((vap->iv_caps & IEEE80211_C_PMGT) == 0)
error = EOPNOTSUPP;
else if ((vap->iv_flags & IEEE80211_F_PMGTON) == 0) {
ieee80211_syncflag(vap, IEEE80211_F_PMGTON);
error = ERESTART;
}
break;
default:
error = EINVAL;
break;
}
break;
case IEEE80211_IOC_POWERSAVESLEEP:
if (ireq->i_val < 0)
return EINVAL;
ic->ic_lintval = ireq->i_val;
error = ERESTART;
break;
case IEEE80211_IOC_RTSTHRESHOLD:
if (!(IEEE80211_RTS_MIN <= ireq->i_val &&
ireq->i_val <= IEEE80211_RTS_MAX))
return EINVAL;
vap->iv_rtsthreshold = ireq->i_val;
error = ERESTART;
break;
case IEEE80211_IOC_PROTMODE:
if (ireq->i_val > IEEE80211_PROT_RTSCTS)
return EINVAL;
ic->ic_protmode = ireq->i_val;
/* NB: if not operating in 11g this can wait */
if (ic->ic_bsschan != IEEE80211_CHAN_ANYC &&
IEEE80211_IS_CHAN_ANYG(ic->ic_bsschan))
error = ERESTART;
break;
case IEEE80211_IOC_TXPOWER:
if ((ic->ic_caps & IEEE80211_C_TXPMGT) == 0)
return EOPNOTSUPP;
if (!(IEEE80211_TXPOWER_MIN <= ireq->i_val &&
ireq->i_val <= IEEE80211_TXPOWER_MAX))
return EINVAL;
ic->ic_txpowlimit = ireq->i_val;
error = ERESTART;
break;
case IEEE80211_IOC_ROAMING:
if (!(IEEE80211_ROAMING_DEVICE <= ireq->i_val &&
ireq->i_val <= IEEE80211_ROAMING_MANUAL))
return EINVAL;
vap->iv_roaming = ireq->i_val;
/* XXXX reset? */
break;
case IEEE80211_IOC_PRIVACY:
if (ireq->i_val) {
/* XXX check for key state? */
vap->iv_flags |= IEEE80211_F_PRIVACY;
} else
vap->iv_flags &= ~IEEE80211_F_PRIVACY;
/* XXX ERESTART? */
break;
case IEEE80211_IOC_DROPUNENCRYPTED:
if (ireq->i_val)
vap->iv_flags |= IEEE80211_F_DROPUNENC;
else
vap->iv_flags &= ~IEEE80211_F_DROPUNENC;
/* XXX ERESTART? */
break;
case IEEE80211_IOC_WPAKEY:
error = ieee80211_ioctl_setkey(vap, ireq);
break;
case IEEE80211_IOC_DELKEY:
error = ieee80211_ioctl_delkey(vap, ireq);
break;
case IEEE80211_IOC_MLME:
error = ieee80211_ioctl_setmlme(vap, ireq);
break;
case IEEE80211_IOC_COUNTERMEASURES:
if (ireq->i_val) {
if ((vap->iv_flags & IEEE80211_F_WPA) == 0)
return EOPNOTSUPP;
vap->iv_flags |= IEEE80211_F_COUNTERM;
} else
vap->iv_flags &= ~IEEE80211_F_COUNTERM;
/* XXX ERESTART? */
break;
case IEEE80211_IOC_WPA:
if (ireq->i_val > 3)
return EINVAL;
/* XXX verify ciphers available */
vap->iv_flags &= ~IEEE80211_F_WPA;
switch (ireq->i_val) {
case 1:
vap->iv_flags |= IEEE80211_F_WPA1;
break;
case 2:
vap->iv_flags |= IEEE80211_F_WPA2;
break;
case 3:
vap->iv_flags |= IEEE80211_F_WPA1 | IEEE80211_F_WPA2;
break;
}
error = ERESTART; /* NB: can change beacon frame */
break;
case IEEE80211_IOC_WME:
if (ireq->i_val) {
if ((vap->iv_caps & IEEE80211_C_WME) == 0)
return EOPNOTSUPP;
ieee80211_syncflag(vap, IEEE80211_F_WME);
} else
ieee80211_syncflag(vap, -IEEE80211_F_WME);
error = ERESTART; /* NB: can change beacon frame */
break;
case IEEE80211_IOC_HIDESSID:
if (ireq->i_val)
vap->iv_flags |= IEEE80211_F_HIDESSID;
else
vap->iv_flags &= ~IEEE80211_F_HIDESSID;
error = ERESTART; /* XXX ENETRESET? */
break;
case IEEE80211_IOC_APBRIDGE:
if (ireq->i_val == 0)
vap->iv_flags |= IEEE80211_F_NOBRIDGE;
else
vap->iv_flags &= ~IEEE80211_F_NOBRIDGE;
break;
case IEEE80211_IOC_BSSID:
if (ireq->i_len != sizeof(tmpbssid))
return EINVAL;
error = copyin(ireq->i_data, tmpbssid, ireq->i_len);
if (error)
break;
IEEE80211_ADDR_COPY(vap->iv_des_bssid, tmpbssid);
if (IEEE80211_ADDR_EQ(vap->iv_des_bssid, zerobssid))
vap->iv_flags &= ~IEEE80211_F_DESBSSID;
else
vap->iv_flags |= IEEE80211_F_DESBSSID;
error = ENETRESET;
break;
case IEEE80211_IOC_CHANLIST:
error = ieee80211_ioctl_setchanlist(vap, ireq);
break;
#define OLD_IEEE80211_IOC_SCAN_REQ 23
#ifdef OLD_IEEE80211_IOC_SCAN_REQ
case OLD_IEEE80211_IOC_SCAN_REQ:
IEEE80211_DPRINTF(vap, IEEE80211_MSG_SCAN,
"%s: active scan request\n", __func__);
/*
* If we are in INIT state then the driver has never
* had a chance to setup hardware state to do a scan;
* use the state machine to get us up the SCAN state.
* Otherwise just invoke the scan machinery to start
* a one-time scan.
*/
if (vap->iv_state == IEEE80211_S_INIT)
ieee80211_new_state(vap, IEEE80211_S_SCAN, 0);
else
(void) ieee80211_start_scan(vap,
IEEE80211_SCAN_ACTIVE |
IEEE80211_SCAN_NOPICK |
IEEE80211_SCAN_ONCE,
IEEE80211_SCAN_FOREVER, 0, 0,
/* XXX use ioctl params */
vap->iv_des_nssid, vap->iv_des_ssid);
break;
#endif /* OLD_IEEE80211_IOC_SCAN_REQ */
case IEEE80211_IOC_SCAN_REQ:
error = ieee80211_ioctl_scanreq(vap, ireq);
break;
case IEEE80211_IOC_SCAN_CANCEL:
IEEE80211_DPRINTF(vap, IEEE80211_MSG_SCAN,
"%s: cancel scan\n", __func__);
ieee80211_cancel_scan(vap);
break;
case IEEE80211_IOC_HTCONF:
if (ireq->i_val & 1)
ieee80211_syncflag_ext(vap, IEEE80211_FEXT_HT);
else
ieee80211_syncflag_ext(vap, -IEEE80211_FEXT_HT);
if (ireq->i_val & 2)
ieee80211_syncflag_ext(vap, IEEE80211_FEXT_USEHT40);
else
ieee80211_syncflag_ext(vap, -IEEE80211_FEXT_USEHT40);
error = ENETRESET;
break;
case IEEE80211_IOC_ADDMAC:
case IEEE80211_IOC_DELMAC:
error = ieee80211_ioctl_macmac(vap, ireq);
break;
case IEEE80211_IOC_MACCMD:
error = ieee80211_ioctl_setmaccmd(vap, ireq);
break;
case IEEE80211_IOC_STA_STATS:
error = ieee80211_ioctl_setstastats(vap, ireq);
break;
case IEEE80211_IOC_STA_TXPOW:
error = ieee80211_ioctl_setstatxpow(vap, ireq);
break;
case IEEE80211_IOC_WME_CWMIN: /* WME: CWmin */
case IEEE80211_IOC_WME_CWMAX: /* WME: CWmax */
case IEEE80211_IOC_WME_AIFS: /* WME: AIFS */
case IEEE80211_IOC_WME_TXOPLIMIT: /* WME: txops limit */
case IEEE80211_IOC_WME_ACM: /* WME: ACM (bss only) */
case IEEE80211_IOC_WME_ACKPOLICY: /* WME: ACK policy (bss only) */
error = ieee80211_ioctl_setwmeparam(vap, ireq);
break;
case IEEE80211_IOC_DTIM_PERIOD:
if (vap->iv_opmode != IEEE80211_M_HOSTAP &&
vap->iv_opmode != IEEE80211_M_IBSS)
return EINVAL;
if (IEEE80211_DTIM_MIN <= ireq->i_val &&
ireq->i_val <= IEEE80211_DTIM_MAX) {
vap->iv_dtim_period = ireq->i_val;
error = ENETRESET; /* requires restart */
} else
error = EINVAL;
break;
case IEEE80211_IOC_BEACON_INTERVAL:
if (vap->iv_opmode != IEEE80211_M_HOSTAP &&
vap->iv_opmode != IEEE80211_M_IBSS)
return EINVAL;
if (IEEE80211_BINTVAL_MIN <= ireq->i_val &&
ireq->i_val <= IEEE80211_BINTVAL_MAX) {
ic->ic_bintval = ireq->i_val;
error = ENETRESET; /* requires restart */
} else
error = EINVAL;
break;
case IEEE80211_IOC_PUREG:
if (ireq->i_val)
vap->iv_flags |= IEEE80211_F_PUREG;
else
vap->iv_flags &= ~IEEE80211_F_PUREG;
/* NB: reset only if we're operating on an 11g channel */
if (isvap11g(vap))
error = ENETRESET;
break;
case IEEE80211_IOC_FF:
if (ireq->i_val) {
if ((vap->iv_caps & IEEE80211_C_FF) == 0)
return EOPNOTSUPP;
vap->iv_flags |= IEEE80211_F_FF;
} else
vap->iv_flags &= ~IEEE80211_F_FF;
error = ERESTART;
break;
case IEEE80211_IOC_TURBOP:
if (ireq->i_val) {
if ((vap->iv_caps & IEEE80211_C_TURBOP) == 0)
return EOPNOTSUPP;
vap->iv_flags |= IEEE80211_F_TURBOP;
} else
vap->iv_flags &= ~IEEE80211_F_TURBOP;
error = ENETRESET;
break;
case IEEE80211_IOC_BGSCAN:
if (ireq->i_val) {
if ((vap->iv_caps & IEEE80211_C_BGSCAN) == 0)
return EOPNOTSUPP;
vap->iv_flags |= IEEE80211_F_BGSCAN;
} else
vap->iv_flags &= ~IEEE80211_F_BGSCAN;
break;
case IEEE80211_IOC_BGSCAN_IDLE:
if (ireq->i_val >= IEEE80211_BGSCAN_IDLE_MIN)
vap->iv_bgscanidle = ireq->i_val*hz/1000;
else
error = EINVAL;
break;
case IEEE80211_IOC_BGSCAN_INTERVAL:
if (ireq->i_val >= IEEE80211_BGSCAN_INTVAL_MIN)
vap->iv_bgscanintvl = ireq->i_val*hz;
else
error = EINVAL;
break;
case IEEE80211_IOC_SCANVALID:
if (ireq->i_val >= IEEE80211_SCAN_VALID_MIN)
vap->iv_scanvalid = ireq->i_val*hz;
else
error = EINVAL;
break;
case IEEE80211_IOC_FRAGTHRESHOLD:
if ((vap->iv_caps & IEEE80211_C_TXFRAG) == 0 &&
ireq->i_val != IEEE80211_FRAG_MAX)
return EOPNOTSUPP;
if (!(IEEE80211_FRAG_MIN <= ireq->i_val &&
ireq->i_val <= IEEE80211_FRAG_MAX))
return EINVAL;
vap->iv_fragthreshold = ireq->i_val;
error = ERESTART;
break;
case IEEE80211_IOC_BURST:
if (ireq->i_val) {
if ((vap->iv_caps & IEEE80211_C_BURST) == 0)
return EOPNOTSUPP;
ieee80211_syncflag(vap, IEEE80211_F_BURST);
} else
ieee80211_syncflag(vap, -IEEE80211_F_BURST);
error = ERESTART;
break;
case IEEE80211_IOC_BMISSTHRESHOLD:
if (!(IEEE80211_HWBMISS_MIN <= ireq->i_val &&
ireq->i_val <= IEEE80211_HWBMISS_MAX))
return EINVAL;
vap->iv_bmissthreshold = ireq->i_val;
error = ERESTART;
break;
case IEEE80211_IOC_CURCHAN:
error = ieee80211_ioctl_setcurchan(vap, ireq);
break;
case IEEE80211_IOC_SHORTGI:
if (ireq->i_val) {
#define IEEE80211_HTCAP_SHORTGI \
(IEEE80211_HTCAP_SHORTGI20 | IEEE80211_HTCAP_SHORTGI40)
if (((ireq->i_val ^ vap->iv_htcaps) & IEEE80211_HTCAP_SHORTGI) != 0)
return EINVAL;
if (ireq->i_val & IEEE80211_HTCAP_SHORTGI20)
vap->iv_flags_ext |= IEEE80211_FEXT_SHORTGI20;
if (ireq->i_val & IEEE80211_HTCAP_SHORTGI40)
vap->iv_flags_ext |= IEEE80211_FEXT_SHORTGI40;
#undef IEEE80211_HTCAP_SHORTGI
} else
vap->iv_flags_ext &=
~(IEEE80211_FEXT_SHORTGI20 | IEEE80211_FEXT_SHORTGI40);
error = ERESTART;
break;
case IEEE80211_IOC_AMPDU:
if (ireq->i_val && (vap->iv_htcaps & IEEE80211_HTC_AMPDU) == 0)
return EINVAL;
if (ireq->i_val & 1)
vap->iv_flags_ext |= IEEE80211_FEXT_AMPDU_TX;
else
vap->iv_flags_ext &= ~IEEE80211_FEXT_AMPDU_TX;
if (ireq->i_val & 2)
vap->iv_flags_ext |= IEEE80211_FEXT_AMPDU_RX;
else
vap->iv_flags_ext &= ~IEEE80211_FEXT_AMPDU_RX;
/* NB: reset only if we're operating on an 11n channel */
if (isvapht(vap))
error = ERESTART;
break;
case IEEE80211_IOC_AMPDU_LIMIT:
if (!(IEEE80211_HTCAP_MAXRXAMPDU_8K <= ireq->i_val &&
ireq->i_val <= IEEE80211_HTCAP_MAXRXAMPDU_64K))
return EINVAL;
if (vap->iv_opmode == IEEE80211_M_HOSTAP)
vap->iv_ampdu_rxmax = ireq->i_val;
else
vap->iv_ampdu_limit = ireq->i_val;
error = ERESTART;
break;
case IEEE80211_IOC_AMPDU_DENSITY:
if (!(IEEE80211_HTCAP_MPDUDENSITY_NA <= ireq->i_val &&
ireq->i_val <= IEEE80211_HTCAP_MPDUDENSITY_16))
return EINVAL;
vap->iv_ampdu_density = ireq->i_val;
error = ERESTART;
break;
case IEEE80211_IOC_AMSDU:
if (ireq->i_val && (vap->iv_htcaps & IEEE80211_HTC_AMSDU) == 0)
return EINVAL;
if (ireq->i_val & 1)
vap->iv_flags_ext |= IEEE80211_FEXT_AMSDU_TX;
else
vap->iv_flags_ext &= ~IEEE80211_FEXT_AMSDU_TX;
if (ireq->i_val & 2)
vap->iv_flags_ext |= IEEE80211_FEXT_AMSDU_RX;
else
vap->iv_flags_ext &= ~IEEE80211_FEXT_AMSDU_RX;
/* NB: reset only if we're operating on an 11n channel */
if (isvapht(vap))
error = ERESTART;
break;
case IEEE80211_IOC_AMSDU_LIMIT:
/* XXX validate */
vap->iv_amsdu_limit = ireq->i_val; /* XXX truncation? */
break;
case IEEE80211_IOC_PUREN:
if (ireq->i_val) {
if ((vap->iv_flags_ext & IEEE80211_FEXT_HT) == 0)
return EINVAL;
vap->iv_flags_ext |= IEEE80211_FEXT_PUREN;
} else
vap->iv_flags_ext &= ~IEEE80211_FEXT_PUREN;
/* NB: reset only if we're operating on an 11n channel */
if (isvapht(vap))
error = ERESTART;
break;
case IEEE80211_IOC_DOTH:
if (ireq->i_val) {
#if 0
/* XXX no capability */
if ((vap->iv_caps & IEEE80211_C_DOTH) == 0)
return EOPNOTSUPP;
#endif
vap->iv_flags |= IEEE80211_F_DOTH;
} else
vap->iv_flags &= ~IEEE80211_F_DOTH;
error = ENETRESET;
break;
case IEEE80211_IOC_REGDOMAIN:
error = ieee80211_ioctl_setregdomain(vap, ireq);
break;
case IEEE80211_IOC_ROAM:
error = ieee80211_ioctl_setroam(vap, ireq);
break;
case IEEE80211_IOC_TXPARAMS:
error = ieee80211_ioctl_settxparams(vap, ireq);
break;
case IEEE80211_IOC_HTCOMPAT:
if (ireq->i_val) {
if ((vap->iv_flags_ext & IEEE80211_FEXT_HT) == 0)
return EOPNOTSUPP;
vap->iv_flags_ext |= IEEE80211_FEXT_HTCOMPAT;
} else
vap->iv_flags_ext &= ~IEEE80211_FEXT_HTCOMPAT;
/* NB: reset only if we're operating on an 11n channel */
if (isvapht(vap))
error = ERESTART;
break;
case IEEE80211_IOC_DWDS:
if (ireq->i_val) {
/* NB: DWDS only makes sense for WDS-capable devices */
if ((ic->ic_caps & IEEE80211_C_WDS) == 0)
return EOPNOTSUPP;
/* NB: DWDS is used only with ap+sta vaps */
if (vap->iv_opmode != IEEE80211_M_HOSTAP &&
vap->iv_opmode != IEEE80211_M_STA)
return EINVAL;
vap->iv_flags |= IEEE80211_F_DWDS;
} else
vap->iv_flags &= ~IEEE80211_F_DWDS;
break;
case IEEE80211_IOC_INACTIVITY:
if (ireq->i_val)
vap->iv_flags_ext |= IEEE80211_FEXT_INACT;
else
vap->iv_flags_ext &= ~IEEE80211_FEXT_INACT;
break;
case IEEE80211_IOC_APPIE:
error = ieee80211_ioctl_setappie(vap, ireq);
break;
case IEEE80211_IOC_WPS:
if (ireq->i_val) {
if ((vap->iv_caps & IEEE80211_C_WPA) == 0)
return EOPNOTSUPP;
vap->iv_flags_ext |= IEEE80211_FEXT_WPS;
} else
vap->iv_flags_ext &= ~IEEE80211_FEXT_WPS;
break;
case IEEE80211_IOC_TSN:
if (ireq->i_val) {
if ((vap->iv_caps & IEEE80211_C_WPA) == 0)
return EOPNOTSUPP;
vap->iv_flags_ext |= IEEE80211_FEXT_TSN;
} else
vap->iv_flags_ext &= ~IEEE80211_FEXT_TSN;
break;
case IEEE80211_IOC_CHANSWITCH:
error = ieee80211_ioctl_chanswitch(vap, ireq);
break;
case IEEE80211_IOC_DFS:
if (ireq->i_val) {
if ((vap->iv_caps & IEEE80211_C_DFS) == 0)
return EOPNOTSUPP;
/* NB: DFS requires 11h support */
if ((vap->iv_flags & IEEE80211_F_DOTH) == 0)
return EINVAL;
vap->iv_flags_ext |= IEEE80211_FEXT_DFS;
} else
vap->iv_flags_ext &= ~IEEE80211_FEXT_DFS;
break;
case IEEE80211_IOC_DOTD:
if (ireq->i_val)
vap->iv_flags_ext |= IEEE80211_FEXT_DOTD;
else
vap->iv_flags_ext &= ~IEEE80211_FEXT_DOTD;
if (vap->iv_opmode == IEEE80211_M_STA)
error = ENETRESET;
break;
case IEEE80211_IOC_HTPROTMODE:
if (ireq->i_val > IEEE80211_PROT_RTSCTS)
return EINVAL;
ic->ic_htprotmode = ireq->i_val ?
IEEE80211_PROT_RTSCTS : IEEE80211_PROT_NONE;
/* NB: if not operating in 11n this can wait */
if (isvapht(vap))
error = ERESTART;
break;
case IEEE80211_IOC_STA_VLAN:
error = ieee80211_ioctl_setstavlan(vap, ireq);
break;
default:
error = EINVAL;
break;
}
/*
* The convention is that ENETRESET means an operation
* requires a complete re-initialization of the device (e.g.
* changing something that affects the association state).
* ERESTART means the request may be handled with only a
* reload of the hardware state. We hand ERESTART requests
* to the iv_reset callback so the driver can decide. If
* a device does not fillin iv_reset then it defaults to one
* that returns ENETRESET. Otherwise a driver may return
* ENETRESET (in which case a full reset will be done) or
* 0 to mean there's no need to do anything (e.g. when the
* change has no effect on the driver/device).
*/
if (error == ERESTART)
error = IFNET_IS_UP_RUNNING(vap->iv_ifp) ?
vap->iv_reset(vap, ireq->i_type) : 0;
if (error == ENETRESET) {
/* XXX need to re-think AUTO handling */
if (IS_UP_AUTO(vap))
ieee80211_init(vap);
error = 0;
}
return error;
}
/*
* Rebuild the parent's multicast address list after an add/del
* of a multicast address for a vap. We have no way to tell
* what happened above to optimize the work so we purge the entire
* list and rebuild from scratch. This is way expensive.
* Note also the half-baked workaround for if_addmulti calling
* back to the parent device; there's no way to insert mcast
* entries quietly and/or cheaply.
*/
static void
ieee80211_ioctl_updatemulti(struct ieee80211com *ic)
{
struct ifnet *parent = ic->ic_ifp;
struct ieee80211vap *vap;
void *ioctl;
IEEE80211_LOCK(ic);
if_purgemaddrs(parent);
ioctl = parent->if_ioctl; /* XXX WAR if_allmulti */
parent->if_ioctl = NULL;
TAILQ_FOREACH(vap, &ic->ic_vaps, iv_next) {
struct ifnet *ifp = vap->iv_ifp;
struct ifmultiaddr *ifma;
TAILQ_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link)
(void) if_addmulti(parent, ifma->ifma_addr, NULL);
}
parent->if_ioctl = ioctl;
ic->ic_update_mcast(ic->ic_ifp);
IEEE80211_UNLOCK(ic);
}
int
ieee80211_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data)
{
struct ieee80211vap *vap;
struct ieee80211com *ic;
int error = 0;
struct ifreq *ifr;
struct ifaddr *ifa; /* XXX */
vap = ifp->if_softc;
if (vap == NULL) {
/*
* During detach we clear the backpointer in the softc
* so any ioctl request through the ifnet that arrives
* before teardown is ignored/rejected. In particular
* this hack handles destroying a vap used by an app
* like wpa_supplicant that will respond to the vap
* being forced into INIT state by immediately trying
* to force it back up. We can yank this hack if/when
* we can destroy the ifnet before cleaning up vap state.
*/
return ENXIO;
}
switch (cmd) {
case SIOCSIFFLAGS:
ic = vap->iv_ic;
IEEE80211_LOCK(ic);
ieee80211_syncifflag_locked(ic, IFF_PROMISC);
ieee80211_syncifflag_locked(ic, IFF_ALLMULTI);
if (ifp->if_flags & IFF_UP) {
/*
* Bring ourself up unless we're already operational.
* If we're the first vap and the parent is not up
* then it will automatically be brought up as a
* side-effect of bringing ourself up.
*/
if (vap->iv_state == IEEE80211_S_INIT)
ieee80211_start_locked(vap);
} else if (ifp->if_drv_flags & IFF_DRV_RUNNING) {
/*
* Stop ourself. If we are the last vap to be
* marked down the parent will also be taken down.
*/
ieee80211_stop_locked(vap);
}
IEEE80211_UNLOCK(ic);
break;
case SIOCADDMULTI:
case SIOCDELMULTI:
ieee80211_ioctl_updatemulti(vap->iv_ic);
break;
case SIOCSIFMEDIA:
case SIOCGIFMEDIA:
ifr = (struct ifreq *)data;
error = ifmedia_ioctl(ifp, ifr, &vap->iv_media, cmd);
break;
case SIOCG80211:
error = ieee80211_ioctl_get80211(vap, cmd,
(struct ieee80211req *) data);
break;
case SIOCS80211:
error = priv_check(curthread, PRIV_NET80211_MANAGE);
if (error == 0)
error = ieee80211_ioctl_set80211(vap, cmd,
(struct ieee80211req *) data);
break;
case SIOCG80211STATS:
ifr = (struct ifreq *)data;
copyout(&vap->iv_stats, ifr->ifr_data, sizeof (vap->iv_stats));
break;
case SIOCSIFMTU:
ifr = (struct ifreq *)data;
if (!(IEEE80211_MTU_MIN <= ifr->ifr_mtu &&
ifr->ifr_mtu <= IEEE80211_MTU_MAX))
error = EINVAL;
else
ifp->if_mtu = ifr->ifr_mtu;
break;
case SIOCSIFADDR:
/*
* XXX Handle this directly so we can supress if_init calls.
* XXX This should be done in ether_ioctl but for the moment
* XXX there are too many other parts of the system that
* XXX set IFF_UP and so supress if_init being called when
* XXX it should be.
*/
ifa = (struct ifaddr *) data;
switch (ifa->ifa_addr->sa_family) {
#ifdef INET
case AF_INET:
if ((ifp->if_flags & IFF_UP) == 0) {
ifp->if_flags |= IFF_UP;
ifp->if_init(ifp->if_softc);
}
arp_ifinit(ifp, ifa);
break;
#endif
#ifdef IPX
/*
* XXX - This code is probably wrong,
* but has been copied many times.
*/
case AF_IPX: {
struct ipx_addr *ina = &(IA_SIPX(ifa)->sipx_addr);
if (ipx_nullhost(*ina))
ina->x_host = *(union ipx_host *)
IF_LLADDR(ifp);
else
bcopy((caddr_t) ina->x_host.c_host,
(caddr_t) IF_LLADDR(ifp),
ETHER_ADDR_LEN);
/* fall thru... */
}
#endif
default:
if ((ifp->if_flags & IFF_UP) == 0) {
ifp->if_flags |= IFF_UP;
ifp->if_init(ifp->if_softc);
}
break;
}
break;
/* Pass NDIS ioctls up to the driver */
case SIOCGDRVSPEC:
case SIOCSDRVSPEC:
case SIOCGPRIVATE_0: {
struct ifnet *parent = vap->iv_ic->ic_ifp;
error = parent->if_ioctl(parent, cmd, data);
break;
}
default:
error = ether_ioctl(ifp, cmd, data);
break;
}
return error;
}
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