From: Linus Lüssing Date: Thu, 7 Jun 2018 00:46:23 +0200 Subject: batman-adv: Avoid storing non-TT-sync flags on singular entries too Since commit 382d020fe3fa ("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: 382d020fe3fa ("batman-adv: fix TT sync flag inconsistencies") Signed-off-by: Linus Lüssing Signed-off-by: Sven Eckelmann Origin: upstream, https://git.open-mesh.org/batman-adv.git/commit/beb6246b2339852b6a429ae9259a8eb30a685041 diff --git a/net/batman-adv/translation-table.c b/net/batman-adv/translation-table.c index 743963bf39dca73f7554f9f85fffd57fd6a3c963..a8b4d9bcb318656022a30f742ede4f38a646d0d1 100644 --- a/net/batman-adv/translation-table.c +++ b/net/batman-adv/translation-table.c @@ -1695,7 +1695,8 @@ 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