/*
 *Always apply Radar/DFS rules on
 *freq range 5260 MHz - 5700 MHz
 */
static void _rtl_reg_apply_radar_flags(struct wiphy *wiphy)
{
	struct ieee80211_supported_band *sband;
	struct ieee80211_channel *ch;
	unsigned int i;

	if (!wiphy->bands[IEEE80211_BAND_5GHZ])
		return;

	sband = wiphy->bands[IEEE80211_BAND_5GHZ];

	for (i = 0; i < sband->n_channels; i++) {
		ch = &sband->channels[i];
		if (!_rtl_is_radar_freq(ch->center_freq))
			continue;

		/*
		 *We always enable radar detection/DFS on this
		 *frequency range. Additionally we also apply on
		 *this frequency range:
		 *- If STA mode does not yet have DFS supports disable
		 * active scanning
		 *- If adhoc mode does not support DFS yet then disable
		 * adhoc in the frequency.
		 *- If AP mode does not yet support radar detection/DFS
		 *do not allow AP mode
		 */
		if (!(ch->flags & IEEE80211_CHAN_DISABLED))
			ch->flags |= IEEE80211_CHAN_RADAR |
			    IEEE80211_CHAN_NO_IBSS |
			    IEEE80211_CHAN_PASSIVE_SCAN;
	}
}
static void _rtl_reg_apply_beaconing_flags(struct wiphy *wiphy,
					   enum nl80211_reg_initiator initiator)
{
	enum ieee80211_band band;
	struct ieee80211_supported_band *sband;
	const struct ieee80211_reg_rule *reg_rule;
	struct ieee80211_channel *ch;
#if (LINUX_VERSION_CODE < KERNEL_VERSION(3,9,0))
	u32 bandwidth = 0;
	int r;
#endif
	unsigned int i;

	for (band = 0; band < IEEE80211_NUM_BANDS; band++) {

		if (!wiphy->bands[band])
			continue;

		sband = wiphy->bands[band];

		for (i = 0; i < sband->n_channels; i++) {
			ch = &sband->channels[i];
			if (_rtl_is_radar_freq(ch->center_freq) ||
			    (ch->flags & IEEE80211_CHAN_RADAR))
				continue;
			if (initiator == NL80211_REGDOM_SET_BY_COUNTRY_IE) {
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,9,0))
				reg_rule = freq_reg_info(wiphy, ch->center_freq);
				if (IS_ERR(reg_rule))
					continue;
#else
				r = freq_reg_info(wiphy, ch->center_freq,
						  bandwidth, &reg_rule);
				if (r)
					continue;
#endif

				/*
				 *If 11d had a rule for this channel ensure
				 *we enable adhoc/beaconing if it allows us to
				 *use it. Note that we would have disabled it
				 *by applying our static world regdomain by
				 *default during init, prior to calling our
				 *regulatory_hint().
				 */

				if (!(reg_rule->flags & NL80211_RRF_NO_IBSS))
					ch->flags &= ~IEEE80211_CHAN_NO_IBSS;
				if (!(reg_rule->flags &
				      NL80211_RRF_PASSIVE_SCAN))
					ch->flags &=
					    ~IEEE80211_CHAN_PASSIVE_SCAN;
			} else {
				if (ch->beacon_found)
					ch->flags &= ~(IEEE80211_CHAN_NO_IBSS |
						   IEEE80211_CHAN_PASSIVE_SCAN);
			}
		}
	}
}
Exemple #3
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static void _rtl_reg_apply_beaconing_flags(struct wiphy *wiphy,
					   enum nl80211_reg_initiator initiator)
{
	enum ieee80211_band band;
	struct ieee80211_supported_band *sband;
	const struct ieee80211_reg_rule *reg_rule;
	struct ieee80211_channel *ch;
	unsigned int i;

	for (band = 0; band < IEEE80211_NUM_BANDS; band++) {

		if (!wiphy->bands[band])
			continue;

		sband = wiphy->bands[band];

		for (i = 0; i < sband->n_channels; i++) {
			ch = &sband->channels[i];
			if (_rtl_is_radar_freq(ch->center_freq) ||
			    (ch->flags & IEEE80211_CHAN_RADAR))
				continue;
			if (initiator == NL80211_REGDOM_SET_BY_COUNTRY_IE) {
				reg_rule = freq_reg_info(wiphy,
							 MHZ_TO_KHZ(ch->center_freq));
				if (IS_ERR(reg_rule))
					continue;

				/*
				 *If 11d had a rule for this channel ensure
				 *we enable adhoc/beaconing if it allows us to
				 *use it. Note that we would have disabled it
				 *by applying our static world regdomain by
				 *default during init, prior to calling our
				 *regulatory_hint().
				 */

				if (!(reg_rule->flags & NL80211_RRF_NO_IR))
					ch->flags &= ~IEEE80211_CHAN_NO_IR;
			} else {
				if (ch->beacon_found)
					ch->flags &= ~IEEE80211_CHAN_NO_IR;
			}
		}
	}
}
/* Allows active scan scan on Ch 12 and 13 */
static void _rtl_reg_apply_active_scan_flags(struct wiphy *wiphy,
					     enum nl80211_reg_initiator
					     initiator)
{
	struct ieee80211_supported_band *sband;
	struct ieee80211_channel *ch;
	const struct ieee80211_reg_rule *reg_rule;
#if (LINUX_VERSION_CODE < KERNEL_VERSION(3,9,0))
	u32 bandwidth = 0;
	int r;
#endif

	if (!wiphy->bands[IEEE80211_BAND_2GHZ])
		return;
	sband = wiphy->bands[IEEE80211_BAND_2GHZ];

	/*
	 *If no country IE has been received always enable active scan
	 *on these channels. This is only done for specific regulatory SKUs
	 */
	if (initiator != NL80211_REGDOM_SET_BY_COUNTRY_IE) {
		ch = &sband->channels[11];	/* CH 12 */
		if (ch->flags & IEEE80211_CHAN_PASSIVE_SCAN)
			ch->flags &= ~IEEE80211_CHAN_PASSIVE_SCAN;
		ch = &sband->channels[12];	/* CH 13 */
		if (ch->flags & IEEE80211_CHAN_PASSIVE_SCAN)
			ch->flags &= ~IEEE80211_CHAN_PASSIVE_SCAN;
		return;
	}

	/*
	 *If a country IE has been recieved check its rule for this
	 *channel first before enabling active scan. The passive scan
	 *would have been enforced by the initial processing of our
	 *custom regulatory domain.
	 */

	ch = &sband->channels[11];	/* CH 12 */
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,9,0))
	reg_rule = freq_reg_info(wiphy, ch->center_freq);
	if (!IS_ERR(reg_rule)) {
#else
	r = freq_reg_info(wiphy, ch->center_freq, bandwidth, &reg_rule);
	if (!r) {
#endif
		if (!(reg_rule->flags & NL80211_RRF_PASSIVE_SCAN))
			if (ch->flags & IEEE80211_CHAN_PASSIVE_SCAN)
				ch->flags &= ~IEEE80211_CHAN_PASSIVE_SCAN;
	}

	ch = &sband->channels[12];	/* CH 13 */
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,9,0))
	reg_rule = freq_reg_info(wiphy, ch->center_freq);
	if (!IS_ERR(reg_rule)) {
#else
	r = freq_reg_info(wiphy, ch->center_freq, bandwidth, &reg_rule);
	if (!r) {
#endif
		if (!(reg_rule->flags & NL80211_RRF_PASSIVE_SCAN))
			if (ch->flags & IEEE80211_CHAN_PASSIVE_SCAN)
				ch->flags &= ~IEEE80211_CHAN_PASSIVE_SCAN;
	}
}

/*
 *Always apply Radar/DFS rules on
 *freq range 5260 MHz - 5700 MHz
 */
static void _rtl_reg_apply_radar_flags(struct wiphy *wiphy)
{
	struct ieee80211_supported_band *sband;
	struct ieee80211_channel *ch;
	unsigned int i;

	if (!wiphy->bands[IEEE80211_BAND_5GHZ])
		return;

	sband = wiphy->bands[IEEE80211_BAND_5GHZ];

	for (i = 0; i < sband->n_channels; i++) {
		ch = &sband->channels[i];
		if (!_rtl_is_radar_freq(ch->center_freq))
			continue;

		/*
		 *We always enable radar detection/DFS on this
		 *frequency range. Additionally we also apply on
		 *this frequency range:
		 *- If STA mode does not yet have DFS supports disable
		 * active scanning
		 *- If adhoc mode does not support DFS yet then disable
		 * adhoc in the frequency.
		 *- If AP mode does not yet support radar detection/DFS
		 *do not allow AP mode
		 */
		if (!(ch->flags & IEEE80211_CHAN_DISABLED))
			ch->flags |= IEEE80211_CHAN_RADAR |
			    IEEE80211_CHAN_NO_IBSS |
			    IEEE80211_CHAN_PASSIVE_SCAN;
	}
}

static void _rtl_reg_apply_world_flags(struct wiphy *wiphy,
				       enum nl80211_reg_initiator initiator,
				       struct rtl_regulatory *reg)
{
	_rtl_reg_apply_beaconing_flags(wiphy, initiator);
	_rtl_reg_apply_active_scan_flags(wiphy, initiator);
	return;
}