From 6a020ab452d38b3878903de931c162429072a7d7 Mon Sep 17 00:00:00 2001 From: Marek Lindner Date: Sun, 26 Jun 2011 15:26:18 +0200 Subject: 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 Signed-off-by: Marek Lindner --- net/batman-adv/send.c | 17 +++++++++++++---- 1 file changed, 13 insertions(+), 4 deletions(-) (limited to 'net/batman-adv') diff --git a/net/batman-adv/send.c b/net/batman-adv/send.c index 2f62b2e4a47..4b8e11bc14f 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, -- cgit v1.2.3-18-g5258