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authorAntonio Quartulli <ordex@autistici.org>2011-07-07 01:40:59 +0200
committerMarek Lindner <lindner_marek@yahoo.de>2011-07-07 18:49:26 +0200
commit980d55b20a730cbabc74cdc57be9c47713dba57b (patch)
tree6b3d66dfe0134cea1b24114e2454ff3fa631a66a /net/batman-adv
parent058d0e26989e3da2fa031f551235f6ff1e0bc27c (diff)
downloadlinux-980d55b20a730cbabc74cdc57be9c47713dba57b.tar.bz2
batman-adv: keep global table consistency in case of roaming
To keep consistency of other originator tables, new clients detected as roamed, are kept in the global table but are marked as TT_CLIENT_PENDING They are purged only when the new ttvn is received by the corresponding originator. Moreover they need to be considered as removed in case of global transtable lookup. Signed-off-by: Antonio Quartulli <ordex@autistici.org> Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>
Diffstat (limited to 'net/batman-adv')
-rw-r--r--net/batman-adv/translation-table.c10
1 files changed, 8 insertions, 2 deletions
diff --git a/net/batman-adv/translation-table.c b/net/batman-adv/translation-table.c
index 7cc67c0f4915..fb6931d00cd7 100644
--- a/net/batman-adv/translation-table.c
+++ b/net/batman-adv/translation-table.c
@@ -230,8 +230,9 @@ void tt_local_add(struct net_device *soft_iface, const uint8_t *addr)
if (tt_global_entry) {
/* This node is probably going to update its tt table */
tt_global_entry->orig_node->tt_poss_change = true;
- _tt_global_del(bat_priv, tt_global_entry,
- "local tt received");
+ /* The global entry has to be marked as PENDING and has to be
+ * kept for consistency purpose */
+ tt_global_entry->flags |= TT_CLIENT_PENDING;
send_roam_adv(bat_priv, tt_global_entry->addr,
tt_global_entry->orig_node);
}
@@ -787,6 +788,11 @@ struct orig_node *transtable_search(struct bat_priv *bat_priv,
if (!atomic_inc_not_zero(&tt_global_entry->orig_node->refcount))
goto free_tt;
+ /* A global client marked as PENDING has already moved from that
+ * originator */
+ if (tt_global_entry->flags & TT_CLIENT_PENDING)
+ goto free_tt;
+
orig_node = tt_global_entry->orig_node;
free_tt: