Пример #1
0
/*
 * Return the phy mode for with the specified channel so the
 * caller can select a rate set.  This is problematic and the
 * work here assumes how things work elsewhere in this code.
 *
 * XXX never returns turbo modes -dcy
 */
enum ieee80211_phymode
ieee80211_chan2mode(struct ieee80211com *ic,
    const struct ieee80211_channel *chan)
{
	/*
	 * NB: this assumes the channel would not be supplied to us
	 *     unless it was already compatible with the current mode.
	 */
	if (ic->ic_curmode != IEEE80211_MODE_AUTO ||
	    chan == IEEE80211_CHAN_ANYC)
		return ic->ic_curmode;
	/*
	 * In autoselect mode; deduce a mode based on the channel
	 * characteristics.  We assume that turbo-only channels
	 * are not considered when the channel set is constructed.
	 */
	if (IEEE80211_IS_CHAN_T(chan))
		return IEEE80211_MODE_TURBO;
	else if (IEEE80211_IS_CHAN_5GHZ(chan))
		return IEEE80211_MODE_11A;
	else if (chan->ic_flags & (IEEE80211_CHAN_OFDM|IEEE80211_CHAN_DYN))
		return IEEE80211_MODE_11G;
	else
		return IEEE80211_MODE_11B;
}
Пример #2
0
void
ieee80211_channel_init(struct ifnet *ifp)
{
	struct ieee80211com *ic = (void *)ifp;
	struct ieee80211_channel *c;
	int i;

	/*
	 * 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)) {
				printf("%s: bad channel ignored; "
					"freq %u flags %x number %u\n",
					ifp->if_xname, 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_T(c))
				ic->ic_modecaps |= 1<<IEEE80211_MODE_TURBO;
		}
	}
	/* 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 */
	ic->ic_scan_lock = IEEE80211_SCAN_UNLOCKED;
}
Пример #3
0
/*
 * Return the phy mode for with the specified channel so the
 * caller can select a rate set.  This is problematic for channels
 * where multiple operating modes are possible (e.g. 11g+11b).
 * In those cases we defer to the current operating mode when set.
 */
enum ieee80211_phymode
ieee80211_chan2mode(struct ieee80211com *ic, struct ieee80211_channel *chan)
{
	if (IEEE80211_IS_CHAN_T(chan)) {
		return IEEE80211_MODE_TURBO_A;
	} else if (IEEE80211_IS_CHAN_5GHZ(chan)) {
		return IEEE80211_MODE_11A;
	} else if (IEEE80211_IS_CHAN_FHSS(chan))
		return IEEE80211_MODE_FH;
	else if (chan->ic_flags & (IEEE80211_CHAN_OFDM|IEEE80211_CHAN_DYN)) {
		/*
		 * This assumes all 11g channels are also usable
		 * for 11b, which is currently true.
		 */
		if (ic->ic_curmode == IEEE80211_MODE_TURBO_G)
			return IEEE80211_MODE_TURBO_G;
		if (ic->ic_curmode == IEEE80211_MODE_11B)
			return IEEE80211_MODE_11B;
		return IEEE80211_MODE_11G;
	} else
		return IEEE80211_MODE_11B;
}
Пример #4
0
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;
}
Пример #5
0
void
ieee80211_ifattach(struct ifnet *ifp)
{
	struct ieee80211com *ic = (void *)ifp;
	struct ieee80211_channel *c;
	int i;

	memcpy(((struct arpcom *)ifp)->ac_enaddr, ic->ic_myaddr,
		ETHER_ADDR_LEN);
	ether_ifattach(ifp);

	ifp->if_output = ieee80211_output;

#if NBPFILTER > 0
	bpfattach(&ic->ic_rawbpf, ifp, DLT_IEEE802_11,
	    sizeof(struct ieee80211_frame_addr4));
#endif
	ieee80211_crypto_attach(ifp);

	/*
	 * 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)) {
				printf("%s: bad channel ignored; "
					"freq %u flags %x number %u\n",
					ifp->if_xname, 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_T(c))
				ic->ic_modecaps |= 1<<IEEE80211_MODE_TURBO;
		}
	}
	/* 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 */
	ic->ic_scan_lock = IEEE80211_SCAN_UNLOCKED;

	/* IEEE 802.11 defines a MTU >= 2290 */
	ifp->if_capabilities |= IFCAP_VLAN_MTU;

	ieee80211_setbasicrates(ic);
	(void)ieee80211_setmode(ic, ic->ic_curmode);

	if (ic->ic_lintval == 0)
		ic->ic_lintval = 100;		/* default sleep */
	ic->ic_bmisstimeout = 7*ic->ic_lintval;	/* default 7 beacons */
	ic->ic_dtim_period = 1;	/* all TIMs are DTIMs */

	LIST_INSERT_HEAD(&ieee80211com_head, ic, ic_list);
	ieee80211_node_attach(ifp);
	ieee80211_proto_attach(ifp);

	if_addgroup(ifp, "wlan");
	ifp->if_priority = IF_WIRELESS_DEFAULT_PRIORITY;
}
Пример #6
0
void
ieee80211_ifattach(struct ifnet *ifp)
{
	struct ieee80211com *ic = (void *)ifp;
	struct ieee80211_channel *c;
	int i;

	ether_ifattach(ifp, ic->ic_myaddr);
#if NBPFILTER > 0
	bpfattach2(ifp, DLT_IEEE802_11,
	    sizeof(struct ieee80211_frame_addr4), &ic->ic_rawbpf);
#endif
	ieee80211_crypto_attach(ifp);

	/*
	 * 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;
		}
	}
	/* validate ic->ic_curmode */
	if ((ic->ic_modecaps & (1<<ic->ic_curmode)) == 0)
		ic->ic_curmode = IEEE80211_MODE_AUTO;

	ieee80211_setbasicrates(ic);
	(void) ieee80211_setmode(ic, ic->ic_curmode);

	ic->ic_des_chan = IEEE80211_CHAN_ANYC;	/* any channel is ok */
	if (ic->ic_lintval == 0)
		ic->ic_lintval = 100;		/* default sleep */
	ic->ic_bmisstimeout = 7*ic->ic_lintval;	/* default 7 beacons */

	ieee80211_node_attach(ifp);
	ieee80211_proto_attach(ifp);
}