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authorJohn W. Linville <linville@tuxdriver.com>2013-04-22 14:58:14 -0400
committerJohn W. Linville <linville@tuxdriver.com>2013-04-22 14:58:14 -0400
commit6475cb05ee17870c7c8d44146dbe09044e6db33d (patch)
tree68fc82e4b9c4c4a1b261869add66bef3ee054926 /net/mac80211/util.c
parente563589f7187699b0217854467d857f53b29cc50 (diff)
parent1eb32179f0593051e7536378a879f5bdd108416a (diff)
downloadlinux-6475cb05ee17870c7c8d44146dbe09044e6db33d.tar.bz2
Merge branch 'for-john' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-next
Diffstat (limited to 'net/mac80211/util.c')
-rw-r--r--net/mac80211/util.c54
1 files changed, 52 insertions, 2 deletions
diff --git a/net/mac80211/util.c b/net/mac80211/util.c
index 447e6651e7fa..3f87fa468b1f 100644
--- a/net/mac80211/util.c
+++ b/net/mac80211/util.c
@@ -485,7 +485,8 @@ int ieee80211_queue_stopped(struct ieee80211_hw *hw, int queue)
return true;
spin_lock_irqsave(&local->queue_stop_reason_lock, flags);
- ret = !!local->queue_stop_reasons[queue];
+ ret = test_bit(IEEE80211_QUEUE_STOP_REASON_DRIVER,
+ &local->queue_stop_reasons[queue]);
spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags);
return ret;
}
@@ -660,7 +661,7 @@ void ieee80211_queue_delayed_work(struct ieee80211_hw *hw,
}
EXPORT_SYMBOL(ieee80211_queue_delayed_work);
-u32 ieee802_11_parse_elems_crc(u8 *start, size_t len,
+u32 ieee802_11_parse_elems_crc(u8 *start, size_t len, bool action,
struct ieee802_11_elems *elems,
u64 filter, u32 crc)
{
@@ -668,6 +669,7 @@ u32 ieee802_11_parse_elems_crc(u8 *start, size_t len,
u8 *pos = start;
bool calc_crc = filter != 0;
DECLARE_BITMAP(seen_elems, 256);
+ const u8 *ie;
bitmap_zero(seen_elems, 256);
memset(elems, 0, sizeof(*elems));
@@ -715,6 +717,12 @@ u32 ieee802_11_parse_elems_crc(u8 *start, size_t len,
case WLAN_EID_COUNTRY:
case WLAN_EID_PWR_CONSTRAINT:
case WLAN_EID_TIMEOUT_INTERVAL:
+ case WLAN_EID_SECONDARY_CHANNEL_OFFSET:
+ case WLAN_EID_WIDE_BW_CHANNEL_SWITCH:
+ /*
+ * not listing WLAN_EID_CHANNEL_SWITCH_WRAPPER -- it seems possible
+ * that if the content gets bigger it might be needed more than once
+ */
if (test_bit(id, seen_elems)) {
elems->parse_error = true;
left -= elen;
@@ -862,6 +870,48 @@ u32 ieee802_11_parse_elems_crc(u8 *start, size_t len,
}
elems->ch_switch_ie = (void *)pos;
break;
+ case WLAN_EID_EXT_CHANSWITCH_ANN:
+ if (elen != sizeof(struct ieee80211_ext_chansw_ie)) {
+ elem_parse_failed = true;
+ break;
+ }
+ elems->ext_chansw_ie = (void *)pos;
+ break;
+ case WLAN_EID_SECONDARY_CHANNEL_OFFSET:
+ if (elen != sizeof(struct ieee80211_sec_chan_offs_ie)) {
+ elem_parse_failed = true;
+ break;
+ }
+ elems->sec_chan_offs = (void *)pos;
+ break;
+ case WLAN_EID_WIDE_BW_CHANNEL_SWITCH:
+ if (!action ||
+ elen != sizeof(*elems->wide_bw_chansw_ie)) {
+ elem_parse_failed = true;
+ break;
+ }
+ elems->wide_bw_chansw_ie = (void *)pos;
+ break;
+ case WLAN_EID_CHANNEL_SWITCH_WRAPPER:
+ if (action) {
+ elem_parse_failed = true;
+ break;
+ }
+ /*
+ * This is a bit tricky, but as we only care about
+ * the wide bandwidth channel switch element, so
+ * just parse it out manually.
+ */
+ ie = cfg80211_find_ie(WLAN_EID_WIDE_BW_CHANNEL_SWITCH,
+ pos, elen);
+ if (ie) {
+ if (ie[1] == sizeof(*elems->wide_bw_chansw_ie))
+ elems->wide_bw_chansw_ie =
+ (void *)(ie + 2);
+ else
+ elem_parse_failed = true;
+ }
+ break;
case WLAN_EID_COUNTRY:
elems->country_elem = pos;
elems->country_elem_len = elen;