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| author | Marek Lindner <lindner_marek@yahoo.de> | 2011-06-26 15:26:18 +0200 |
|---|---|---|
| committer | Marek Lindner <lindner_marek@yahoo.de> | 2011-07-05 14:28:54 +0200 |
| commit | 6a020ab452d38b3878903de931c162429072a7d7 (patch) | |
| tree | 4ab894a1b36943b6b4ea83e715e68391f2484c16 /net | |
| parent | ff66c975d5e412817f8122012760e852b4571b5e (diff) | |
| download | linux-6a020ab452d38b3878903de931c162429072a7d7.tar.gz linux-6a020ab452d38b3878903de931c162429072a7d7.tar.bz2 linux-6a020ab452d38b3878903de931c162429072a7d7.zip | |
batman-adv: broadcast primary OGM on all active hard-interfaces
The primary interface OGM has to be broadcasted on all hard-interfaces
even if the primary interface is not the first interface (if_num = 0).
Therefore the code has to compare the originating interface with the
primary interface instead of checking the if_num.
Reported-by: Linus Luessing <linus.luessing@web.de>
Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>
Diffstat (limited to 'net')
| -rw-r--r-- | net/batman-adv/send.c | 17 |
1 files changed, 13 insertions, 4 deletions
diff --git a/net/batman-adv/send.c b/net/batman-adv/send.c index 2f62b2e4a47b..4b8e11bc14fa 100644 --- a/net/batman-adv/send.c +++ b/net/batman-adv/send.c @@ -163,6 +163,7 @@ static void send_packet(struct forw_packet *forw_packet) struct hard_iface *hard_iface; struct net_device *soft_iface; struct bat_priv *bat_priv; + struct hard_iface *primary_if = NULL; struct batman_packet *batman_packet = (struct batman_packet *)(forw_packet->skb->data); int directlink = (batman_packet->flags & DIRECTLINK ? 1 : 0); @@ -170,19 +171,23 @@ static void send_packet(struct forw_packet *forw_packet) if (!forw_packet->if_incoming) { pr_err("Error - can't forward packet: incoming iface not " "specified\n"); - return; + goto out; } soft_iface = forw_packet->if_incoming->soft_iface; bat_priv = netdev_priv(soft_iface); if (forw_packet->if_incoming->if_status != IF_ACTIVE) - return; + goto out; + + primary_if = primary_if_get_selected(bat_priv); + if (!primary_if) + goto out; /* multihomed peer assumed */ /* non-primary OGMs are only broadcasted on their interface */ if ((directlink && (batman_packet->ttl == 1)) || - (forw_packet->own && (forw_packet->if_incoming->if_num > 0))) { + (forw_packet->own && (forw_packet->if_incoming != primary_if))) { /* FIXME: what about aggregated packets ? */ bat_dbg(DBG_BATMAN, bat_priv, @@ -199,7 +204,7 @@ static void send_packet(struct forw_packet *forw_packet) broadcast_addr); forw_packet->skb = NULL; - return; + goto out; } /* broadcast on every interface */ @@ -211,6 +216,10 @@ static void send_packet(struct forw_packet *forw_packet) send_packet_to_if(forw_packet, hard_iface); } rcu_read_unlock(); + +out: + if (primary_if) + hardif_free_ref(primary_if); } static void realloc_packet_buffer(struct hard_iface *hard_iface, |