#include <net/cfg80211.h>
#include "core.h"
#include "reg.h"
+#include "nl80211.h"
/* Receipt of information from last regulatory request */
static struct regulatory_request *last_request;
*/
static const struct ieee80211_regdomain *country_ie_regdomain;
+/* Used to queue up regulatory hints */
static LIST_HEAD(reg_requests_list);
static spinlock_t reg_requests_lock;
+/* Used to queue up beacon hints for review */
+static LIST_HEAD(reg_pending_beacons);
+static spinlock_t reg_pending_beacons_lock;
+
+/* Used to keep track of processed beacon hints */
+static LIST_HEAD(reg_beacon_list);
+
+struct reg_beacon {
+ struct list_head list;
+ struct ieee80211_channel chan;
+};
+
/* We keep a static world regulatory domain in case of the absence of CRDA */
static const struct ieee80211_regdomain world_regdom = {
- .n_reg_rules = 3,
+ .n_reg_rules = 5,
.alpha2 = "00",
.reg_rules = {
/* IEEE 802.11b/g, channels 1..11 */
REG_RULE(2412-10, 2462+10, 40, 6, 20, 0),
- /* IEEE 802.11a, channel 36..48 */
- REG_RULE(5180-10, 5240+10, 40, 6, 23,
+ /* IEEE 802.11b/g, channels 12..13. No HT40
+ * channel fits here. */
+ REG_RULE(2467-10, 2472+10, 20, 6, 20,
NL80211_RRF_PASSIVE_SCAN |
NL80211_RRF_NO_IBSS),
+ /* IEEE 802.11 channel 14 - Only JP enables
+ * this and for 802.11b only */
+ REG_RULE(2484-10, 2484+10, 20, 6, 20,
+ NL80211_RRF_PASSIVE_SCAN |
+ NL80211_RRF_NO_IBSS |
+ NL80211_RRF_NO_OFDM),
+ /* IEEE 802.11a, channel 36..48 */
+ REG_RULE(5180-10, 5240+10, 40, 6, 20,
+ NL80211_RRF_PASSIVE_SCAN |
+ NL80211_RRF_NO_IBSS),
/* NB: 5260 MHz - 5700 MHz requies DFS */
/* IEEE 802.11a, channel 149..165 */
- REG_RULE(5745-10, 5825+10, 40, 6, 23,
+ REG_RULE(5745-10, 5825+10, 40, 6, 20,
NL80211_RRF_PASSIVE_SCAN |
NL80211_RRF_NO_IBSS),
}
#ifdef CONFIG_WIRELESS_OLD_REGULATORY
static char *ieee80211_regdom = "US";
+#else
+static char *ieee80211_regdom = "00";
+#endif
+
module_param(ieee80211_regdom, charp, 0444);
MODULE_PARM_DESC(ieee80211_regdom, "IEEE 802.11 regulatory domain code");
+#ifdef CONFIG_WIRELESS_OLD_REGULATORY
/*
* We assume 40 MHz bandwidth for the old regulatory work.
* We make emphasis we are using the exact same frequencies
freq_diff = freq_range->end_freq_khz - freq_range->start_freq_khz;
- if (freq_diff <= 0 || freq_range->max_bandwidth_khz > freq_diff)
+ if (freq_range->end_freq_khz <= freq_range->start_freq_khz ||
+ freq_range->max_bandwidth_khz > freq_diff)
return false;
return true;
* Follow the driver's regulatory domain, if present, unless a country
* IE has been processed or a user wants to help complaince further
*/
- if (last_request->initiator != REGDOM_SET_BY_COUNTRY_IE &&
- last_request->initiator != REGDOM_SET_BY_USER &&
+ if (last_request->initiator != NL80211_REGDOM_SET_BY_COUNTRY_IE &&
+ last_request->initiator != NL80211_REGDOM_SET_BY_USER &&
wiphy->regd)
regd = wiphy->regd;
* http://tinyurl.com/11d-clarification
*/
if (r == -ERANGE &&
- last_request->initiator == REGDOM_SET_BY_COUNTRY_IE) {
+ last_request->initiator ==
+ NL80211_REGDOM_SET_BY_COUNTRY_IE) {
#ifdef CONFIG_CFG80211_REG_DEBUG
printk(KERN_DEBUG "cfg80211: Leaving channel %d MHz "
"intact on %s - no rule found in band on "
* for the band so we respect its band definitions
*/
#ifdef CONFIG_CFG80211_REG_DEBUG
- if (last_request->initiator == REGDOM_SET_BY_COUNTRY_IE)
+ if (last_request->initiator ==
+ NL80211_REGDOM_SET_BY_COUNTRY_IE)
printk(KERN_DEBUG "cfg80211: Disabling "
"channel %d MHz on %s due to "
"Country IE\n",
power_rule = ®_rule->power_rule;
- if (last_request->initiator == REGDOM_SET_BY_DRIVER &&
+ if (last_request->initiator == NL80211_REGDOM_SET_BY_DRIVER &&
request_wiphy && request_wiphy == wiphy &&
request_wiphy->strict_regulatory) {
/*
handle_channel(wiphy, band, i);
}
-static bool ignore_reg_update(struct wiphy *wiphy, enum reg_set_by setby)
+static bool ignore_reg_update(struct wiphy *wiphy,
+ enum nl80211_reg_initiator initiator)
{
if (!last_request)
return true;
- if (setby == REGDOM_SET_BY_CORE &&
+ if (initiator == NL80211_REGDOM_SET_BY_CORE &&
wiphy->custom_regulatory)
return true;
/*
return false;
}
-static void update_all_wiphy_regulatory(enum reg_set_by setby)
+static void update_all_wiphy_regulatory(enum nl80211_reg_initiator initiator)
{
struct cfg80211_registered_device *drv;
list_for_each_entry(drv, &cfg80211_drv_list, list)
- wiphy_update_regulatory(&drv->wiphy, setby);
+ wiphy_update_regulatory(&drv->wiphy, initiator);
}
-void wiphy_update_regulatory(struct wiphy *wiphy, enum reg_set_by setby)
+static void handle_reg_beacon(struct wiphy *wiphy,
+ unsigned int chan_idx,
+ struct reg_beacon *reg_beacon)
{
- enum ieee80211_band band;
+#ifdef CONFIG_CFG80211_REG_DEBUG
+#define REG_DEBUG_BEACON_FLAG(desc) \
+ printk(KERN_DEBUG "cfg80211: Enabling " desc " on " \
+ "frequency: %d MHz (Ch %d) on %s\n", \
+ reg_beacon->chan.center_freq, \
+ ieee80211_frequency_to_channel(reg_beacon->chan.center_freq), \
+ wiphy_name(wiphy));
+#else
+#define REG_DEBUG_BEACON_FLAG(desc) do {} while (0)
+#endif
+ struct ieee80211_supported_band *sband;
+ struct ieee80211_channel *chan;
+
+ assert_cfg80211_lock();
+
+ sband = wiphy->bands[reg_beacon->chan.band];
+ chan = &sband->channels[chan_idx];
+
+ if (likely(chan->center_freq != reg_beacon->chan.center_freq))
+ return;
+
+ if (chan->flags & IEEE80211_CHAN_PASSIVE_SCAN) {
+ chan->flags &= ~IEEE80211_CHAN_PASSIVE_SCAN;
+ REG_DEBUG_BEACON_FLAG("active scanning");
+ }
+
+ if (chan->flags & IEEE80211_CHAN_NO_IBSS) {
+ chan->flags &= ~IEEE80211_CHAN_NO_IBSS;
+ REG_DEBUG_BEACON_FLAG("beaconing");
+ }
+
+ chan->beacon_found = true;
+#undef REG_DEBUG_BEACON_FLAG
+}
+
+/*
+ * Called when a scan on a wiphy finds a beacon on
+ * new channel
+ */
+static void wiphy_update_new_beacon(struct wiphy *wiphy,
+ struct reg_beacon *reg_beacon)
+{
+ unsigned int i;
+ struct ieee80211_supported_band *sband;
+
+ assert_cfg80211_lock();
+
+ if (!wiphy->bands[reg_beacon->chan.band])
+ return;
+
+ sband = wiphy->bands[reg_beacon->chan.band];
+
+ for (i = 0; i < sband->n_channels; i++)
+ handle_reg_beacon(wiphy, i, reg_beacon);
+}
- if (ignore_reg_update(wiphy, setby))
+/*
+ * Called upon reg changes or a new wiphy is added
+ */
+static void wiphy_update_beacon_reg(struct wiphy *wiphy)
+{
+ unsigned int i;
+ struct ieee80211_supported_band *sband;
+ struct reg_beacon *reg_beacon;
+
+ assert_cfg80211_lock();
+
+ if (list_empty(®_beacon_list))
return;
+
+ list_for_each_entry(reg_beacon, ®_beacon_list, list) {
+ if (!wiphy->bands[reg_beacon->chan.band])
+ continue;
+ sband = wiphy->bands[reg_beacon->chan.band];
+ for (i = 0; i < sband->n_channels; i++)
+ handle_reg_beacon(wiphy, i, reg_beacon);
+ }
+}
+
+static bool reg_is_world_roaming(struct wiphy *wiphy)
+{
+ if (is_world_regdom(cfg80211_regdomain->alpha2) ||
+ (wiphy->regd && is_world_regdom(wiphy->regd->alpha2)))
+ return true;
+ if (last_request->initiator != NL80211_REGDOM_SET_BY_COUNTRY_IE &&
+ wiphy->custom_regulatory)
+ return true;
+ return false;
+}
+
+/* Reap the advantages of previously found beacons */
+static void reg_process_beacons(struct wiphy *wiphy)
+{
+ if (!reg_is_world_roaming(wiphy))
+ return;
+ wiphy_update_beacon_reg(wiphy);
+}
+
+void wiphy_update_regulatory(struct wiphy *wiphy,
+ enum nl80211_reg_initiator initiator)
+{
+ enum ieee80211_band band;
+
+ if (ignore_reg_update(wiphy, initiator))
+ goto out;
for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
if (wiphy->bands[band])
handle_band(wiphy, band);
}
+out:
+ reg_process_beacons(wiphy);
if (wiphy->reg_notifier)
wiphy->reg_notifier(wiphy, last_request);
}
/* This has the logic which determines when a new request
* should be ignored. */
-static int ignore_request(struct wiphy *wiphy, enum reg_set_by set_by,
- const char *alpha2)
+static int ignore_request(struct wiphy *wiphy,
+ struct regulatory_request *pending_request)
{
struct wiphy *last_wiphy = NULL;
if (!last_request)
return 0;
- switch (set_by) {
- case REGDOM_SET_BY_INIT:
- return -EINVAL;
- case REGDOM_SET_BY_CORE:
+ switch (pending_request->initiator) {
+ case NL80211_REGDOM_SET_BY_CORE:
return -EINVAL;
- case REGDOM_SET_BY_COUNTRY_IE:
+ case NL80211_REGDOM_SET_BY_COUNTRY_IE:
last_wiphy = wiphy_idx_to_wiphy(last_request->wiphy_idx);
- if (unlikely(!is_an_alpha2(alpha2)))
+ if (unlikely(!is_an_alpha2(pending_request->alpha2)))
return -EINVAL;
- if (last_request->initiator == REGDOM_SET_BY_COUNTRY_IE) {
+ if (last_request->initiator ==
+ NL80211_REGDOM_SET_BY_COUNTRY_IE) {
if (last_wiphy != wiphy) {
/*
* Two cards with two APs claiming different
* intersect them, but that seems unlikely
* to be correct. Reject second one for now.
*/
- if (regdom_changes(alpha2))
+ if (regdom_changes(pending_request->alpha2))
return -EOPNOTSUPP;
return -EALREADY;
}
* Two consecutive Country IE hints on the same wiphy.
* This should be picked up early by the driver/stack
*/
- if (WARN_ON(regdom_changes(alpha2)))
+ if (WARN_ON(regdom_changes(pending_request->alpha2)))
return 0;
return -EALREADY;
}
return REG_INTERSECT;
- case REGDOM_SET_BY_DRIVER:
- if (last_request->initiator == REGDOM_SET_BY_CORE) {
+ case NL80211_REGDOM_SET_BY_DRIVER:
+ if (last_request->initiator == NL80211_REGDOM_SET_BY_CORE) {
if (is_old_static_regdom(cfg80211_regdomain))
return 0;
- if (regdom_changes(alpha2))
+ if (regdom_changes(pending_request->alpha2))
return 0;
return -EALREADY;
}
* back in or if you add a new device for which the previously
* loaded card also agrees on the regulatory domain.
*/
- if (last_request->initiator == REGDOM_SET_BY_DRIVER &&
- !regdom_changes(alpha2))
+ if (last_request->initiator == NL80211_REGDOM_SET_BY_DRIVER &&
+ !regdom_changes(pending_request->alpha2))
return -EALREADY;
return REG_INTERSECT;
- case REGDOM_SET_BY_USER:
- if (last_request->initiator == REGDOM_SET_BY_COUNTRY_IE)
+ case NL80211_REGDOM_SET_BY_USER:
+ if (last_request->initiator == NL80211_REGDOM_SET_BY_COUNTRY_IE)
return REG_INTERSECT;
/*
* If the user knows better the user should set the regdom
* to their country before the IE is picked up
*/
- if (last_request->initiator == REGDOM_SET_BY_USER &&
+ if (last_request->initiator == NL80211_REGDOM_SET_BY_USER &&
last_request->intersect)
return -EOPNOTSUPP;
/*
* Process user requests only after previous user/driver/core
* requests have been processed
*/
- if (last_request->initiator == REGDOM_SET_BY_CORE ||
- last_request->initiator == REGDOM_SET_BY_DRIVER ||
- last_request->initiator == REGDOM_SET_BY_USER) {
+ if (last_request->initiator == NL80211_REGDOM_SET_BY_CORE ||
+ last_request->initiator == NL80211_REGDOM_SET_BY_DRIVER ||
+ last_request->initiator == NL80211_REGDOM_SET_BY_USER) {
if (regdom_changes(last_request->alpha2))
return -EAGAIN;
}
if (!is_old_static_regdom(cfg80211_regdomain) &&
- !regdom_changes(alpha2))
+ !regdom_changes(pending_request->alpha2))
return -EALREADY;
return 0;
return -EINVAL;
}
-/* Caller must hold &cfg80211_mutex */
-int __regulatory_hint(struct wiphy *wiphy, enum reg_set_by set_by,
- const char *alpha2,
- u32 country_ie_checksum,
- enum environment_cap env)
+/**
+ * __regulatory_hint - hint to the wireless core a regulatory domain
+ * @wiphy: if the hint comes from country information from an AP, this
+ * is required to be set to the wiphy that received the information
+ * @pending_request: the regulatory request currently being processed
+ *
+ * The Wireless subsystem can use this function to hint to the wireless core
+ * what it believes should be the current regulatory domain.
+ *
+ * Returns zero if all went fine, %-EALREADY if a regulatory domain had
+ * already been set or other standard error codes.
+ *
+ * Caller must hold &cfg80211_mutex
+ */
+static int __regulatory_hint(struct wiphy *wiphy,
+ struct regulatory_request *pending_request)
{
- struct regulatory_request *request;
bool intersect = false;
int r = 0;
assert_cfg80211_lock();
- r = ignore_request(wiphy, set_by, alpha2);
+ r = ignore_request(wiphy, pending_request);
if (r == REG_INTERSECT) {
- if (set_by == REGDOM_SET_BY_DRIVER) {
+ if (pending_request->initiator ==
+ NL80211_REGDOM_SET_BY_DRIVER) {
r = reg_copy_regd(&wiphy->regd, cfg80211_regdomain);
- if (r)
+ if (r) {
+ kfree(pending_request);
return r;
+ }
}
intersect = true;
} else if (r) {
* driver has already been set just copy it to the
* wiphy
*/
- if (r == -EALREADY && set_by == REGDOM_SET_BY_DRIVER) {
+ if (r == -EALREADY &&
+ pending_request->initiator ==
+ NL80211_REGDOM_SET_BY_DRIVER) {
r = reg_copy_regd(&wiphy->regd, cfg80211_regdomain);
- if (r)
+ if (r) {
+ kfree(pending_request);
return r;
+ }
r = -EALREADY;
goto new_request;
}
+ kfree(pending_request);
return r;
}
new_request:
- request = kzalloc(sizeof(struct regulatory_request),
- GFP_KERNEL);
- if (!request)
- return -ENOMEM;
+ kfree(last_request);
- request->alpha2[0] = alpha2[0];
- request->alpha2[1] = alpha2[1];
- request->initiator = set_by;
- request->wiphy_idx = get_wiphy_idx(wiphy);
- request->intersect = intersect;
- request->country_ie_checksum = country_ie_checksum;
- request->country_ie_env = env;
+ last_request = pending_request;
+ last_request->intersect = intersect;
- kfree(last_request);
- last_request = request;
+ pending_request = NULL;
/* When r == REG_INTERSECT we do need to call CRDA */
- if (r < 0)
+ if (r < 0) {
+ /*
+ * Since CRDA will not be called in this case as we already
+ * have applied the requested regulatory domain before we just
+ * inform userspace we have processed the request
+ */
+ if (r == -EALREADY)
+ nl80211_send_reg_change_event(last_request);
return r;
+ }
- /*
- * Note: When CONFIG_WIRELESS_OLD_REGULATORY is enabled
- * AND if CRDA is NOT present nothing will happen, if someone
- * wants to bother with 11d with OLD_REG you can add a timer.
- * If after x amount of time nothing happens you can call:
- *
- * return set_regdom(country_ie_regdomain);
- *
- * to intersect with the static rd
- */
- return call_crda(alpha2);
+ return call_crda(last_request->alpha2);
}
/* This currently only processes user and driver regulatory hints */
-static int reg_process_hint(struct regulatory_request *reg_request)
+static void reg_process_hint(struct regulatory_request *reg_request)
{
int r = 0;
struct wiphy *wiphy = NULL;
if (wiphy_idx_valid(reg_request->wiphy_idx))
wiphy = wiphy_idx_to_wiphy(reg_request->wiphy_idx);
- if (reg_request->initiator == REGDOM_SET_BY_DRIVER &&
+ if (reg_request->initiator == NL80211_REGDOM_SET_BY_DRIVER &&
!wiphy) {
- r = -ENODEV;
+ kfree(reg_request);
goto out;
}
- r = __regulatory_hint(wiphy,
- reg_request->initiator,
- reg_request->alpha2,
- reg_request->country_ie_checksum,
- reg_request->country_ie_env);
+ r = __regulatory_hint(wiphy, reg_request);
/* This is required so that the orig_* parameters are saved */
if (r == -EALREADY && wiphy && wiphy->strict_regulatory)
wiphy_update_regulatory(wiphy, reg_request->initiator);
out:
mutex_unlock(&cfg80211_mutex);
-
- if (r == -EALREADY)
- r = 0;
-
- return r;
}
+/* Processes regulatory hints, this is all the NL80211_REGDOM_SET_BY_* */
static void reg_process_pending_hints(void)
{
struct regulatory_request *reg_request;
- int r;
spin_lock(®_requests_lock);
while (!list_empty(®_requests_list)) {
struct regulatory_request,
list);
list_del_init(®_request->list);
- spin_unlock(®_requests_lock);
- r = reg_process_hint(reg_request);
-#ifdef CONFIG_CFG80211_REG_DEBUG
- if (r && (reg_request->initiator == REGDOM_SET_BY_DRIVER ||
- reg_request->initiator == REGDOM_SET_BY_COUNTRY_IE))
- printk(KERN_ERR "cfg80211: wiphy_idx %d sent a "
- "regulatory hint for %c%c but now has "
- "gone fishing, ignoring request\n",
- reg_request->wiphy_idx,
- reg_request->alpha2[0],
- reg_request->alpha2[1]);
-#endif
- kfree(reg_request);
+ spin_unlock(®_requests_lock);
+ reg_process_hint(reg_request);
spin_lock(®_requests_lock);
}
spin_unlock(®_requests_lock);
}
+/* Processes beacon hints -- this has nothing to do with country IEs */
+static void reg_process_pending_beacon_hints(void)
+{
+ struct cfg80211_registered_device *drv;
+ struct reg_beacon *pending_beacon, *tmp;
+
+ mutex_lock(&cfg80211_mutex);
+
+ /* This goes through the _pending_ beacon list */
+ spin_lock_bh(®_pending_beacons_lock);
+
+ if (list_empty(®_pending_beacons)) {
+ spin_unlock_bh(®_pending_beacons_lock);
+ goto out;
+ }
+
+ list_for_each_entry_safe(pending_beacon, tmp,
+ ®_pending_beacons, list) {
+
+ list_del_init(&pending_beacon->list);
+
+ /* Applies the beacon hint to current wiphys */
+ list_for_each_entry(drv, &cfg80211_drv_list, list)
+ wiphy_update_new_beacon(&drv->wiphy, pending_beacon);
+
+ /* Remembers the beacon hint for new wiphys or reg changes */
+ list_add_tail(&pending_beacon->list, ®_beacon_list);
+ }
+
+ spin_unlock_bh(®_pending_beacons_lock);
+out:
+ mutex_unlock(&cfg80211_mutex);
+}
+
static void reg_todo(struct work_struct *work)
{
reg_process_pending_hints();
+ reg_process_pending_beacon_hints();
}
static DECLARE_WORK(reg_work, reg_todo);
request->alpha2[0] = alpha2[0];
request->alpha2[1] = alpha2[1];
- request->initiator = REGDOM_SET_BY_CORE;
+ request->initiator = NL80211_REGDOM_SET_BY_CORE;
queue_regulatory_request(request);
request->wiphy_idx = WIPHY_IDX_STALE;
request->alpha2[0] = alpha2[0];
request->alpha2[1] = alpha2[1];
- request->initiator = REGDOM_SET_BY_USER,
+ request->initiator = NL80211_REGDOM_SET_BY_USER,
queue_regulatory_request(request);
request->alpha2[0] = alpha2[0];
request->alpha2[1] = alpha2[1];
- request->initiator = REGDOM_SET_BY_DRIVER;
+ request->initiator = NL80211_REGDOM_SET_BY_DRIVER;
queue_regulatory_request(request);
assert_cfg80211_lock();
+ if (unlikely(last_request->initiator !=
+ NL80211_REGDOM_SET_BY_COUNTRY_IE))
+ return false;
+
request_wiphy = wiphy_idx_to_wiphy(last_request->wiphy_idx);
if (!request_wiphy)
* we optimize an early check to exit out early if we don't have to
* do anything
*/
- if (likely(wiphy_idx_valid(last_request->wiphy_idx))) {
+ if (likely(last_request->initiator ==
+ NL80211_REGDOM_SET_BY_COUNTRY_IE &&
+ wiphy_idx_valid(last_request->wiphy_idx))) {
struct cfg80211_registered_device *drv_last_ie;
drv_last_ie =
request->wiphy_idx = get_wiphy_idx(wiphy);
request->alpha2[0] = rd->alpha2[0];
request->alpha2[1] = rd->alpha2[1];
- request->initiator = REGDOM_SET_BY_COUNTRY_IE;
+ request->initiator = NL80211_REGDOM_SET_BY_COUNTRY_IE;
request->country_ie_checksum = checksum;
request->country_ie_env = env;
}
EXPORT_SYMBOL(regulatory_hint_11d);
+static bool freq_is_chan_12_13_14(u16 freq)
+{
+ if (freq == ieee80211_channel_to_frequency(12) ||
+ freq == ieee80211_channel_to_frequency(13) ||
+ freq == ieee80211_channel_to_frequency(14))
+ return true;
+ return false;
+}
+
+int regulatory_hint_found_beacon(struct wiphy *wiphy,
+ struct ieee80211_channel *beacon_chan,
+ gfp_t gfp)
+{
+ struct reg_beacon *reg_beacon;
+
+ if (likely((beacon_chan->beacon_found ||
+ (beacon_chan->flags & IEEE80211_CHAN_RADAR) ||
+ (beacon_chan->band == IEEE80211_BAND_2GHZ &&
+ !freq_is_chan_12_13_14(beacon_chan->center_freq)))))
+ return 0;
+
+ reg_beacon = kzalloc(sizeof(struct reg_beacon), gfp);
+ if (!reg_beacon)
+ return -ENOMEM;
+
+#ifdef CONFIG_CFG80211_REG_DEBUG
+ printk(KERN_DEBUG "cfg80211: Found new beacon on "
+ "frequency: %d MHz (Ch %d) on %s\n",
+ beacon_chan->center_freq,
+ ieee80211_frequency_to_channel(beacon_chan->center_freq),
+ wiphy_name(wiphy));
+#endif
+ memcpy(®_beacon->chan, beacon_chan,
+ sizeof(struct ieee80211_channel));
+
+
+ /*
+ * Since we can be called from BH or and non-BH context
+ * we must use spin_lock_bh()
+ */
+ spin_lock_bh(®_pending_beacons_lock);
+ list_add_tail(®_beacon->list, ®_pending_beacons);
+ spin_unlock_bh(®_pending_beacons_lock);
+
+ schedule_work(®_work);
+
+ return 0;
+}
+
static void print_rd_rules(const struct ieee80211_regdomain *rd)
{
unsigned int i;
if (is_intersected_alpha2(rd->alpha2)) {
- if (last_request->initiator == REGDOM_SET_BY_COUNTRY_IE) {
+ if (last_request->initiator ==
+ NL80211_REGDOM_SET_BY_COUNTRY_IE) {
struct cfg80211_registered_device *drv;
drv = cfg80211_drv_by_wiphy_idx(
last_request->wiphy_idx);
* rd is non static (it means CRDA was present and was used last)
* and the pending request came in from a country IE
*/
- if (last_request->initiator != REGDOM_SET_BY_COUNTRY_IE) {
+ if (last_request->initiator != NL80211_REGDOM_SET_BY_COUNTRY_IE) {
/*
* If someone else asked us to change the rd lets only bother
* checking if the alpha2 changes if CRDA was already called
if (!last_request->intersect) {
int r;
- if (last_request->initiator != REGDOM_SET_BY_DRIVER) {
+ if (last_request->initiator != NL80211_REGDOM_SET_BY_DRIVER) {
reset_regdomains();
cfg80211_regdomain = rd;
return 0;
/* Intersection requires a bit more work */
- if (last_request->initiator != REGDOM_SET_BY_COUNTRY_IE) {
+ if (last_request->initiator != NL80211_REGDOM_SET_BY_COUNTRY_IE) {
intersected_rd = regdom_intersect(rd, cfg80211_regdomain);
if (!intersected_rd)
* However if a driver requested this specific regulatory
* domain we keep it for its private use
*/
- if (last_request->initiator == REGDOM_SET_BY_DRIVER)
+ if (last_request->initiator == NL80211_REGDOM_SET_BY_DRIVER)
request_wiphy->regd = rd;
else
kfree(rd);
*/
BUG_ON(!country_ie_regdomain);
+ BUG_ON(rd == country_ie_regdomain);
- if (rd != country_ie_regdomain) {
- /*
- * Intersect what CRDA returned and our what we
- * had built from the Country IE received
- */
+ /*
+ * Intersect what CRDA returned and our what we
+ * had built from the Country IE received
+ */
- intersected_rd = regdom_intersect(rd, country_ie_regdomain);
+ intersected_rd = regdom_intersect(rd, country_ie_regdomain);
- reg_country_ie_process_debug(rd, country_ie_regdomain,
- intersected_rd);
+ reg_country_ie_process_debug(rd,
+ country_ie_regdomain,
+ intersected_rd);
- kfree(country_ie_regdomain);
- country_ie_regdomain = NULL;
- } else {
- /*
- * This would happen when CRDA was not present and
- * OLD_REGULATORY was enabled. We intersect our Country
- * IE rd and what was set on cfg80211 originally
- */
- intersected_rd = regdom_intersect(rd, cfg80211_regdomain);
- }
+ kfree(country_ie_regdomain);
+ country_ie_regdomain = NULL;
if (!intersected_rd)
return -EINVAL;
print_regdomain(cfg80211_regdomain);
+ nl80211_send_reg_change_event(last_request);
+
return r;
}
return PTR_ERR(reg_pdev);
spin_lock_init(®_requests_lock);
+ spin_lock_init(®_pending_beacons_lock);
#ifdef CONFIG_WIRELESS_OLD_REGULATORY
cfg80211_regdomain = static_regdom(ieee80211_regdom);
/*
* The old code still requests for a new regdomain and if
* you have CRDA you get it updated, otherwise you get
- * stuck with the static values. We ignore "EU" code as
- * that is not a valid ISO / IEC 3166 alpha2
+ * stuck with the static values. Since "EU" is not a valid
+ * ISO / IEC 3166 alpha2 code we can't expect userpace to
+ * give us a regulatory domain for it. We need last_request
+ * iniitalized though so lets just send a request which we
+ * know will be ignored... this crap will be removed once
+ * OLD_REG dies.
*/
- if (ieee80211_regdom[0] != 'E' || ieee80211_regdom[1] != 'U')
- err = regulatory_hint_core(ieee80211_regdom);
+ err = regulatory_hint_core(ieee80211_regdom);
#else
cfg80211_regdomain = cfg80211_world_regdom;
- err = regulatory_hint_core("00");
+ err = regulatory_hint_core(ieee80211_regdom);
#endif
if (err) {
if (err == -ENOMEM)
void regulatory_exit(void)
{
struct regulatory_request *reg_request, *tmp;
+ struct reg_beacon *reg_beacon, *btmp;
cancel_work_sync(®_work);
platform_device_unregister(reg_pdev);
+ spin_lock_bh(®_pending_beacons_lock);
+ if (!list_empty(®_pending_beacons)) {
+ list_for_each_entry_safe(reg_beacon, btmp,
+ ®_pending_beacons, list) {
+ list_del(®_beacon->list);
+ kfree(reg_beacon);
+ }
+ }
+ spin_unlock_bh(®_pending_beacons_lock);
+
+ if (!list_empty(®_beacon_list)) {
+ list_for_each_entry_safe(reg_beacon, btmp,
+ ®_beacon_list, list) {
+ list_del(®_beacon->list);
+ kfree(reg_beacon);
+ }
+ }
+
spin_lock(®_requests_lock);
if (!list_empty(®_requests_list)) {
list_for_each_entry_safe(reg_request, tmp,
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff