diff options
| author | Yuan-Chi Pang <fu3mo6goo@gmail.com> | 2018-08-29 09:30:08 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-10-10 08:53:18 +0200 |
| commit | 7c10ec1ddde1cc9f73fc3f8a27d427b59675d08f (patch) | |
| tree | 45fecc75c559283ed10795c797d45a9035be76b7 /net | |
| parent | 0cf963078ad51ac72a318e00b984d634fc115d84 (diff) | |
mac80211: mesh: fix HWMP sequence numbering to follow standard
[ Upstream commit 1f631c3201fe5491808df143d8fcba81b3197ffd ]
IEEE 802.11-2016 14.10.8.3 HWMP sequence numbering says:
If it is a target mesh STA, it shall update its own HWMP SN to
maximum (current HWMP SN, target HWMP SN in the PREQ element) + 1
immediately before it generates a PREP element in response to a
PREQ element.
Signed-off-by: Yuan-Chi Pang <fu3mo6goo@gmail.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'net')
| -rw-r--r-- | net/mac80211/mesh_hwmp.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/net/mac80211/mesh_hwmp.c b/net/mac80211/mesh_hwmp.c index fed598a202c8..b0acb2961e80 100644 --- a/net/mac80211/mesh_hwmp.c +++ b/net/mac80211/mesh_hwmp.c @@ -563,6 +563,10 @@ static void hwmp_preq_frame_process(struct ieee80211_sub_if_data *sdata, forward = false; reply = true; target_metric = 0; + + if (SN_GT(target_sn, ifmsh->sn)) + ifmsh->sn = target_sn; + if (time_after(jiffies, ifmsh->last_sn_update + net_traversal_jiffies(sdata)) || time_before(jiffies, ifmsh->last_sn_update)) { |