/*
* Activate a vap. State should have been prepared with a
* call to ieee80211_vap_setup and by the driver. On return
* from this call the vap is ready for use.
*/
int
ieee80211_vap_attach(struct ieee80211vap *vap,
ifm_change_cb_t media_change, ifm_stat_cb_t media_stat)
{
struct ifnet *ifp = vap->iv_ifp;
struct ieee80211com *ic = vap->iv_ic;
struct ifmediareq imr;
int maxrate;
IEEE80211_DPRINTF(vap, IEEE80211_MSG_STATE,
"%s: %s parent %s flags 0x%x flags_ext 0x%x\n",
__func__, ieee80211_opmode_name[vap->iv_opmode],
ic->ic_ifp->if_xname, vap->iv_flags, vap->iv_flags_ext);
/*
* Do late attach work that cannot happen until after
* the driver has had a chance to override defaults.
*/
ieee80211_node_latevattach(vap);
ieee80211_power_latevattach(vap);
maxrate = ieee80211_media_setup(ic, &vap->iv_media, vap->iv_caps,
vap->iv_opmode == IEEE80211_M_STA, media_change, media_stat);
ieee80211_media_status(ifp, &imr);
/* NB: strip explicit mode; we're actually in autoselect */
ifmedia_set(&vap->iv_media,
imr.ifm_active &~ (IFM_MMASK | IFM_IEEE80211_TURBO));
if (maxrate)
ifp->if_baudrate = IF_Mbps(maxrate);
ether_ifattach(ifp, vap->iv_myaddr, &wlan_global_serializer);
if (vap->iv_opmode == IEEE80211_M_MONITOR) {
/* NB: disallow transmit */
#ifdef __FreeBSD__
ifp->if_transmit = null_transmit;
#endif
ifp->if_output = null_output;
} else {
/* hook output method setup by ether_ifattach */
vap->iv_output = ifp->if_output;
ifp->if_output = ieee80211_output;
}
/* NB: if_mtu set by ether_ifattach to ETHERMTU */
TAILQ_INSERT_TAIL(&ic->ic_vaps, vap, iv_next);
ieee80211_syncflag_locked(ic, IEEE80211_F_WME);
#ifdef IEEE80211_SUPPORT_SUPERG
ieee80211_syncflag_locked(ic, IEEE80211_F_TURBOP);
#endif
ieee80211_syncflag_locked(ic, IEEE80211_F_PCF);
ieee80211_syncflag_locked(ic, IEEE80211_F_BURST);
ieee80211_syncflag_ht_locked(ic, IEEE80211_FHT_HT);
ieee80211_syncflag_ht_locked(ic, IEEE80211_FHT_USEHT40);
ieee80211_syncifflag_locked(ic, IFF_PROMISC);
ieee80211_syncifflag_locked(ic, IFF_ALLMULTI);
return 1;
}
/*
* Setup the media data structures according to the channel and
* rate tables. This must be called by the driver after
* ieee80211_attach and before most anything else.
*/
void
ieee80211_media_init(struct ieee80211com *ic,
ifm_change_cb_t media_change, ifm_stat_cb_t media_stat)
{
#define ADD(_ic, _s, _o) \
ifmedia_add(&(_ic)->ic_media, \
IFM_MAKEWORD(IFM_IEEE80211, (_s), (_o), 0), 0, NULL)
struct ifnet *ifp = ic->ic_ifp;
struct ifmediareq imr;
int i, j, mode, rate, maxrate, mword, mopt, r;
const struct ieee80211_rateset *rs;
struct ieee80211_rateset allrates;
/*
* Do late attach work that must wait for any subclass
* (i.e. driver) work such as overriding methods.
*/
ieee80211_node_lateattach(ic);
#ifdef IEEE80211_NO_HOSTAP
ic->ic_caps &= ~IEEE80211_C_HOSTAP;
#endif /* IEEE80211_NO_HOSTAP */
/*
* Fill in media characteristics.
*/
ifmedia_init(&ic->ic_media, 0, media_change, media_stat);
maxrate = 0;
memset(&allrates, 0, sizeof(allrates));
for (mode = IEEE80211_MODE_AUTO; mode < IEEE80211_MODE_MAX; mode++) {
static const u_int mopts[] = {
IFM_AUTO,
IFM_IEEE80211_11A,
IFM_IEEE80211_11B,
IFM_IEEE80211_11G,
IFM_IEEE80211_FH,
IFM_IEEE80211_11A | IFM_IEEE80211_TURBO,
IFM_IEEE80211_11G | IFM_IEEE80211_TURBO,
};
if ((ic->ic_modecaps & (1<<mode)) == 0)
continue;
mopt = mopts[mode];
ADD(ic, IFM_AUTO, mopt); /* e.g. 11a auto */
if (ic->ic_caps & IEEE80211_C_IBSS)
ADD(ic, IFM_AUTO, mopt | IFM_IEEE80211_ADHOC);
if (ic->ic_caps & IEEE80211_C_HOSTAP)
ADD(ic, IFM_AUTO, mopt | IFM_IEEE80211_HOSTAP);
if (ic->ic_caps & IEEE80211_C_AHDEMO)
ADD(ic, IFM_AUTO, mopt | IFM_IEEE80211_ADHOC | IFM_FLAG0);
if (ic->ic_caps & IEEE80211_C_MONITOR)
ADD(ic, IFM_AUTO, mopt | IFM_IEEE80211_MONITOR);
if (mode == IEEE80211_MODE_AUTO)
continue;
rs = &ic->ic_sup_rates[mode];
for (i = 0; i < rs->rs_nrates; i++) {
rate = rs->rs_rates[i];
mword = ieee80211_rate2media(ic, rate, mode);
if (mword == 0)
continue;
ADD(ic, mword, mopt);
if (ic->ic_caps & IEEE80211_C_IBSS)
ADD(ic, mword, mopt | IFM_IEEE80211_ADHOC);
if (ic->ic_caps & IEEE80211_C_HOSTAP)
ADD(ic, mword, mopt | IFM_IEEE80211_HOSTAP);
if (ic->ic_caps & IEEE80211_C_AHDEMO)
ADD(ic, mword, mopt | IFM_IEEE80211_ADHOC | IFM_FLAG0);
if (ic->ic_caps & IEEE80211_C_MONITOR)
ADD(ic, mword, mopt | IFM_IEEE80211_MONITOR);
/*
* Add rate to the collection of all rates.
*/
r = rate & IEEE80211_RATE_VAL;
for (j = 0; j < allrates.rs_nrates; j++)
if (allrates.rs_rates[j] == r)
break;
if (j == allrates.rs_nrates) {
/* unique, add to the set */
allrates.rs_rates[j] = r;
allrates.rs_nrates++;
}
rate = (rate & IEEE80211_RATE_VAL) / 2;
if (rate > maxrate)
maxrate = rate;
}
}
for (i = 0; i < allrates.rs_nrates; i++) {
mword = ieee80211_rate2media(ic, allrates.rs_rates[i],
IEEE80211_MODE_AUTO);
if (mword == 0)
continue;
mword = IFM_SUBTYPE(mword); /* remove media options */
ADD(ic, mword, 0);
if (ic->ic_caps & IEEE80211_C_IBSS)
ADD(ic, mword, IFM_IEEE80211_ADHOC);
if (ic->ic_caps & IEEE80211_C_HOSTAP)
ADD(ic, mword, IFM_IEEE80211_HOSTAP);
if (ic->ic_caps & IEEE80211_C_AHDEMO)
ADD(ic, mword, IFM_IEEE80211_ADHOC | IFM_FLAG0);
if (ic->ic_caps & IEEE80211_C_MONITOR)
ADD(ic, mword, IFM_IEEE80211_MONITOR);
}
ieee80211_media_status(ifp, &imr);
ifmedia_set(&ic->ic_media, imr.ifm_active);
if (maxrate)
ifp->if_baudrate = IF_Mbps(maxrate);
#undef ADD
}
