From: Antonio Quartulli Date: Tue, 31 Jul 2012 15:19:15 +0000 (+0200) Subject: batman-adv: use check_unicast_packet() in recv_roam_adv() X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=d48ddb83666c32f14436106b8c9319f8ab24cf0a;p=GitHub%2Fexynos8895%2Fandroid_kernel_samsung_universal8895.git batman-adv: use check_unicast_packet() in recv_roam_adv() To avoid code duplication and to simplify further changes, check_unicast_packet() is now used in recv_roam_adv() to check for not well formed packets and so discard them. Signed-off-by: Antonio Quartulli --- diff --git a/net/batman-adv/routing.c b/net/batman-adv/routing.c index 376b4cc6ca82..8bdafc85ba4f 100644 --- a/net/batman-adv/routing.c +++ b/net/batman-adv/routing.c @@ -687,21 +687,8 @@ int batadv_recv_roam_adv(struct sk_buff *skb, struct batadv_hard_iface *recv_if) struct batadv_priv *bat_priv = netdev_priv(recv_if->soft_iface); struct batadv_roam_adv_packet *roam_adv_packet; struct batadv_orig_node *orig_node; - struct ethhdr *ethhdr; - - /* drop packet if it has not necessary minimum size */ - if (unlikely(!pskb_may_pull(skb, - sizeof(struct batadv_roam_adv_packet)))) - goto out; - - ethhdr = (struct ethhdr *)skb_mac_header(skb); - /* packet with unicast indication but broadcast recipient */ - if (is_broadcast_ether_addr(ethhdr->h_dest)) - goto out; - - /* packet with broadcast sender address */ - if (is_broadcast_ether_addr(ethhdr->h_source)) + if (batadv_check_unicast_packet(skb, sizeof(*roam_adv_packet)) < 0) goto out; batadv_inc_counter(bat_priv, BATADV_CNT_TT_ROAM_ADV_RX);