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From: Simon Wunderlich <sw@simonwunderlich.de>
To: davem@davemloft.net
Cc: netdev@vger.kernel.org, b.a.t.m.a.n@lists.open-mesh.org,
	"Linus Lüssing" <linus.luessing@c0d3.blue>,
	"Sven Eckelmann" <sven@narfation.org>,
	"Simon Wunderlich" <sw@simonwunderlich.de>
Subject: [B.A.T.M.A.N.] [PATCH 5/6] batman-adv: Avoid storing non-TT-sync flags on singular entries too
Date: Tue, 17 Jul 2018 17:19:45 +0200	[thread overview]
Message-ID: <20180717151946.31900-6-sw@simonwunderlich.de> (raw)
In-Reply-To: <20180717151946.31900-1-sw@simonwunderlich.de>

From: Linus Lüssing <linus.luessing@c0d3.blue>

Since commit 54e22f265e87 ("batman-adv: fix TT sync flag inconsistencies")
TT sync flags and TT non-sync'd flags are supposed to be stored
separately.

The previous patch missed to apply this separation on a TT entry with
only a single TT orig entry.

This is a minor fix because with only a single TT orig entry the DDoS
issue the former patch solves does not apply.

Fixes: 54e22f265e87 ("batman-adv: fix TT sync flag inconsistencies")
Signed-off-by: Linus Lüssing <linus.luessing@c0d3.blue>
Signed-off-by: Sven Eckelmann <sven@narfation.org>
Signed-off-by: Simon Wunderlich <sw@simonwunderlich.de>
---
 net/batman-adv/translation-table.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/net/batman-adv/translation-table.c b/net/batman-adv/translation-table.c
index 3986551397ca..61ce300091f3 100644
--- a/net/batman-adv/translation-table.c
+++ b/net/batman-adv/translation-table.c
@@ -1705,7 +1705,8 @@ static bool batadv_tt_global_add(struct batadv_priv *bat_priv,
 		ether_addr_copy(common->addr, tt_addr);
 		common->vid = vid;
 
-		common->flags = flags;
+		common->flags = flags & (~BATADV_TT_SYNC_MASK);
+
 		tt_global_entry->roam_at = 0;
 		/* node must store current time in case of roaming. This is
 		 * needed to purge this entry out on timeout (if nobody claims
-- 
2.11.0


  parent reply	other threads:[~2018-07-17 15:19 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-07-17 15:19 [B.A.T.M.A.N.] [PATCH 0/6] pull request for net: batman-adv 2018-07-17 Simon Wunderlich
2018-07-17 15:19 ` [B.A.T.M.A.N.] [PATCH 1/6] batman-adv: Fix bat_ogm_iv best gw refcnt after netlink dump Simon Wunderlich
2018-07-17 15:19 ` [B.A.T.M.A.N.] [PATCH 2/6] batman-adv: Fix bat_v " Simon Wunderlich
2018-07-17 15:19 ` [B.A.T.M.A.N.] [PATCH 3/6] batman-adv: Fix debugfs path for renamed hardif Simon Wunderlich
2018-07-17 15:19 ` [B.A.T.M.A.N.] [PATCH 4/6] batman-adv: Fix debugfs path for renamed softif Simon Wunderlich
2018-07-17 15:19 ` Simon Wunderlich [this message]
2018-07-17 15:19 ` [B.A.T.M.A.N.] [PATCH 6/6] batman-adv: Fix multicast TT issues with bogus ROAM flags Simon Wunderlich
2018-07-18 20:50 ` [B.A.T.M.A.N.] [PATCH 0/6] pull request for net: batman-adv 2018-07-17 David Miller

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