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Commit 44fed77f authored by Linus Lüssing's avatar Linus Lüssing Committed by Greg Kroah-Hartman
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batman-adv: Avoid storing non-TT-sync flags on singular entries too 



[ Upstream commit 4a519b83da16927fb98fd32b0f598e639d1f1859 ]

Since commit 54e22f26 ("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: 54e22f26 ("batman-adv: fix TT sync flag inconsistencies")
Signed-off-by: default avatarLinus Lüssing <linus.luessing@c0d3.blue>
Signed-off-by: default avatarSven Eckelmann <sven@narfation.org>
Signed-off-by: default avatarSimon Wunderlich <sw@simonwunderlich.de>
Signed-off-by: default avatarSasha Levin <alexander.levin@microsoft.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent d50e1f18

net/batman-adv/translation-table.c

+2 −1
Original line number Diff line number Diff line
@@ -1679,7 +1679,8 @@ 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