From: John Crispin <john@phrozen.org>
To: Johannes Berg <johannes@sipsolutions.net>
Cc: linux-wireless@vger.kernel.org, John Crispin <john@phrozen.org>
Subject: [PATCH V3 1/2] mac80211: add support for parsing ADDBA_EXT IEs
Date: Sat, 13 Jul 2019 18:36:41 +0200 [thread overview]
Message-ID: <20190713163642.18491-2-john@phrozen.org> (raw)
In-Reply-To: <20190713163642.18491-1-john@phrozen.org>
ADDBA_EXT IEs can be used to negotiate the BA fragmentation level.
Signed-off-by: John Crispin <john@phrozen.org>
---
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
next prev parent reply other threads:[~2019-07-13 16:36 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-07-13 16:36 [PATCH V3 0/2] mac80211: add ADDBA_EXT responder support John Crispin
2019-07-13 16:36 ` John Crispin [this message]
2019-07-13 16:36 ` [PATCH V3 2/2] mac80211: add support for the ADDBA extension element John Crispin
2019-07-26 11:36 ` Johannes Berg
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