/*
* Attach/setup the common net80211 state. Called by
* the driver on attach to prior to creating any vap's.
*/
void
ieee80211_ifattach(struct ieee80211com *ic,
const uint8_t macaddr[IEEE80211_ADDR_LEN])
{
struct ifnet *ifp = ic->ic_ifp;
struct sockaddr_dl *sdl;
struct ifaddr *ifa;
KASSERT(ifp->if_type == IFT_IEEE80211, ("if_type %d", ifp->if_type));
TAILQ_INIT(&ic->ic_vaps);
/* Create a taskqueue for all state changes */
ic->ic_tq = taskqueue_create("ic_taskq", M_WAITOK | M_ZERO,
taskqueue_thread_enqueue, &ic->ic_tq);
taskqueue_start_threads(&ic->ic_tq, 1, TDPRI_KERN_DAEMON, -1,
"%s taskq", ifp->if_xname);
/*
* Fill in 802.11 available channel set, mark all
* available channels as active, and pick a default
* channel if not already specified.
*/
ieee80211_media_init(ic);
ic->ic_update_mcast = null_update_mcast;
ic->ic_update_promisc = null_update_promisc;
ic->ic_hash_key = karc4random();
ic->ic_bintval = IEEE80211_BINTVAL_DEFAULT;
ic->ic_lintval = ic->ic_bintval;
ic->ic_txpowlimit = IEEE80211_TXPOWER_MAX;
ieee80211_crypto_attach(ic);
ieee80211_node_attach(ic);
ieee80211_power_attach(ic);
ieee80211_proto_attach(ic);
#ifdef IEEE80211_SUPPORT_SUPERG
ieee80211_superg_attach(ic);
#endif
ieee80211_ht_attach(ic);
ieee80211_scan_attach(ic);
ieee80211_regdomain_attach(ic);
ieee80211_dfs_attach(ic);
ieee80211_sysctl_attach(ic);
ifp->if_addrlen = IEEE80211_ADDR_LEN;
ifp->if_hdrlen = 0;
if_attach(ifp, NULL);
ifp->if_mtu = IEEE80211_MTU_MAX;
ifp->if_broadcastaddr = ieee80211broadcastaddr;
ifp->if_output = null_output;
ifp->if_input = null_input; /* just in case */
ifp->if_resolvemulti = NULL; /* NB: callers check */
ifa = ifaddr_byindex(ifp->if_index);
KASSERT(ifa != NULL, ("%s: no lladdr!", __func__));
sdl = (struct sockaddr_dl *)ifa->ifa_addr;
sdl->sdl_type = IFT_ETHER; /* XXX IFT_IEEE80211? */
sdl->sdl_alen = IEEE80211_ADDR_LEN;
IEEE80211_ADDR_COPY(LLADDR(sdl), macaddr);
// IFAFREE(ifa);
}
void
ieee80211_ifattach(struct ieee80211com *ic)
{
struct ifnet *ifp = ic->ic_ifp;
struct ieee80211_channel *c;
int i;
#ifdef __NetBSD__
ieee80211_init();
#endif /* __NetBSD__ */
ether_ifattach(ifp, ic->ic_myaddr);
bpf_attach2(ifp, DLT_IEEE802_11,
sizeof(struct ieee80211_frame_addr4), &ic->ic_rawbpf);
ieee80211_crypto_attach(ic);
/*
* Fill in 802.11 available channel set, mark
* all available channels as active, and pick
* a default channel if not already specified.
*/
memset(ic->ic_chan_avail, 0, sizeof(ic->ic_chan_avail));
ic->ic_modecaps |= 1<<IEEE80211_MODE_AUTO;
for (i = 0; i <= IEEE80211_CHAN_MAX; i++) {
c = &ic->ic_channels[i];
if (c->ic_flags) {
/*
* Verify driver passed us valid data.
*/
if (i != ieee80211_chan2ieee(ic, c)) {
if_printf(ifp, "bad channel ignored; "
"freq %u flags %x number %u\n",
c->ic_freq, c->ic_flags, i);
c->ic_flags = 0; /* NB: remove */
continue;
}
setbit(ic->ic_chan_avail, i);
/*
* Identify mode capabilities.
*/
if (IEEE80211_IS_CHAN_A(c))
ic->ic_modecaps |= 1<<IEEE80211_MODE_11A;
if (IEEE80211_IS_CHAN_B(c))
ic->ic_modecaps |= 1<<IEEE80211_MODE_11B;
if (IEEE80211_IS_CHAN_PUREG(c))
ic->ic_modecaps |= 1<<IEEE80211_MODE_11G;
if (IEEE80211_IS_CHAN_FHSS(c))
ic->ic_modecaps |= 1<<IEEE80211_MODE_FH;
if (IEEE80211_IS_CHAN_T(c))
ic->ic_modecaps |= 1<<IEEE80211_MODE_TURBO_A;
if (IEEE80211_IS_CHAN_108G(c))
ic->ic_modecaps |= 1<<IEEE80211_MODE_TURBO_G;
if (ic->ic_curchan == NULL) {
/* arbitrarily pick the first channel */
ic->ic_curchan = &ic->ic_channels[i];
}
}
}
/* validate ic->ic_curmode */
if ((ic->ic_modecaps & (1<<ic->ic_curmode)) == 0)
ic->ic_curmode = IEEE80211_MODE_AUTO;
ic->ic_des_chan = IEEE80211_CHAN_ANYC; /* any channel is ok */
#if 0
/*
* Enable WME by default if we're capable.
*/
if (ic->ic_caps & IEEE80211_C_WME)
ic->ic_flags |= IEEE80211_F_WME;
#endif
(void) ieee80211_setmode(ic, ic->ic_curmode);
if (ic->ic_bintval == 0)
ic->ic_bintval = IEEE80211_BINTVAL_DEFAULT;
ic->ic_bmisstimeout = 7*ic->ic_bintval; /* default 7 beacons */
ic->ic_dtim_period = IEEE80211_DTIM_DEFAULT;
IEEE80211_BEACON_LOCK_INIT(ic, "beacon");
if (ic->ic_lintval == 0)
ic->ic_lintval = ic->ic_bintval;
ic->ic_txpowlimit = IEEE80211_TXPOWER_MAX;
LIST_INSERT_HEAD(&ieee80211com_head, ic, ic_list);
ieee80211_node_attach(ic);
ieee80211_proto_attach(ic);
ieee80211_add_vap(ic);
ieee80211_sysctl_attach(ic); /* NB: requires ic_vap */
/*
* Install a default reset method for the ioctl support.
* The driver is expected to fill this in before calling us.
*/
if (ic->ic_reset == NULL)
ic->ic_reset = ieee80211_default_reset;
}
