The following commit has been merged in the master branch: commit 757dd82ea7008ddaccfecff3397bec3e3203a89e Author: Matthias Schiffer mschiffer@universe-factory.net Date: Thu Jan 24 18:18:26 2013 +0100

batman-adv: check for more types of invalid IP addresses in DAT

There are more types of IP addresses that may appear in ARP packets that we don't want to process. While some of these should never appear in sane ARP packets, a 0.0.0.0 source is used for duplicate address detection and thus seen quite often.

Signed-off-by: Matthias Schiffer mschiffer@universe-factory.net Acked-by: Antonio Quartulli ordex@autistici.org Signed-off-by: Marek Lindner lindner_marek@yahoo.de Signed-off-by: Antonio Quartulli ordex@autistici.org

diff --git a/net/batman-adv/distributed-arp-table.c b/net/batman-adv/distributed-arp-table.c index ce0d299..ccb3c6c 100644 --- a/net/batman-adv/distributed-arp-table.c +++ b/net/batman-adv/distributed-arp-table.c @@ -777,7 +777,9 @@ static uint16_t batadv_arp_get_type(struct batadv_priv *bat_priv, ip_src = batadv_arp_ip_src(skb, hdr_size); ip_dst = batadv_arp_ip_dst(skb, hdr_size); if (ipv4_is_loopback(ip_src) || ipv4_is_multicast(ip_src) || - ipv4_is_loopback(ip_dst) || ipv4_is_multicast(ip_dst)) + ipv4_is_loopback(ip_dst) || ipv4_is_multicast(ip_dst) || + ipv4_is_zeronet(ip_src) || ipv4_is_lbcast(ip_src) || + ipv4_is_zeronet(ip_dst) || ipv4_is_lbcast(ip_dst)) goto out;

type = ntohs(arphdr->ar_op);