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| author | Yuan-Chi Pang <fu3mo6goo@gmail.com> | 2018-08-29 09:30:08 +0800 |
|---|---|---|
| committer | Johannes Berg <johannes.berg@intel.com> | 2018-08-29 11:15:30 +0200 |
| commit | 1f631c3201fe5491808df143d8fcba81b3197ffd (patch) | |
| tree | ebb2fa1f5e722471fd0ebfa2b9840ff8b6c53f01 /net/mac80211 | |
| parent | b88d26d97c41680f7327e5fb8061ad0037877f40 (diff) | |
| download | op-kernel-dev-1f631c3201fe5491808df143d8fcba81b3197ffd.zip op-kernel-dev-1f631c3201fe5491808df143d8fcba81b3197ffd.tar.gz | |
mac80211: mesh: fix HWMP sequence numbering to follow standard
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>
Diffstat (limited to 'net/mac80211')
| -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 35ad398..daf9db3 100644 --- a/net/mac80211/mesh_hwmp.c +++ b/net/mac80211/mesh_hwmp.c @@ -572,6 +572,10 @@ 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)) { |
