ADDBA_EXT IEs can be used to negotiate the BA fragmentation level.
Signed-off-by: John Crispin <john@xxxxxxxxxxx>
---
include/linux/ieee80211.h | 8 ++++++++
net/mac80211/ieee80211_i.h | 1 +
net/mac80211/util.c | 7 +++++++
3 files changed, 16 insertions(+)
diff --git a/include/linux/ieee80211.h b/include/linux/ieee80211.h
index b16a493bca41..c7bdaaebca5b 100644
--- a/include/linux/ieee80211.h
+++ b/include/linux/ieee80211.h
@@ -884,6 +884,14 @@ struct ieee80211_tpc_report_ie {
u8 link_margin;
} __packed;
+#define IEEE80211_ADDBA_EXT_FRAG_LEVEL_MASK GENMASK(2, 1)
+#define IEEE80211_ADDBA_EXT_FRAG_LEVEL_SHIFT 1
+#define IEEE80211_ADDBA_EXT_NO_FRAG BIT(0)
+
+struct ieee80211_addba_ext_ie {
+ u8 data;
+} __packed;
+
struct ieee80211_mgmt {
__le16 frame_control;
__le16 duration;
diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h
index 734a970f3cc8..c4c3193290ad 100644
--- a/net/mac80211/ieee80211_i.h
+++ b/net/mac80211/ieee80211_i.h
@@ -1512,6 +1512,7 @@ struct ieee802_11_elems {
u8 max_bssid_indicator;
u8 dtim_count;
u8 dtim_period;
+ const struct ieee80211_addba_ext_ie *addba_ext_ie;
/* length of them, respectively */
u8 ext_capab_len;
diff --git a/net/mac80211/util.c b/net/mac80211/util.c
index 563e08cb0b99..661a502de745 100644
--- a/net/mac80211/util.c
+++ b/net/mac80211/util.c
@@ -1198,6 +1198,13 @@ _ieee802_11_parse_elems_crc(const u8 *start, size_t len, bool action,
elems->cisco_dtpc_elem = pos;
break;
+ case WLAN_EID_ADDBA_EXT:
+ if (elen != sizeof(struct ieee80211_addba_ext_ie)) {
+ elem_parse_failed = true;
+ break;
+ }
+ elems->addba_ext_ie = (void *)pos;
+ break;
case WLAN_EID_TIMEOUT_INTERVAL:
if (elen >= sizeof(struct ieee80211_timeout_interval_ie))
elems->timeout_int = (void *)pos;
--
2.20.1
