diff options
Diffstat (limited to 'drivers/staging/batman-adv/hard-interface.c')
| -rw-r--r-- | drivers/staging/batman-adv/hard-interface.c | 18 |
1 files changed, 15 insertions, 3 deletions
diff --git a/drivers/staging/batman-adv/hard-interface.c b/drivers/staging/batman-adv/hard-interface.c index 5ede9c255094..ba7ddfc709a5 100644 --- a/drivers/staging/batman-adv/hard-interface.c +++ b/drivers/staging/batman-adv/hard-interface.c @@ -30,6 +30,7 @@ #include "hash.h" #include <linux/if_arp.h> +#include <linux/netfilter_bridge.h> #define MIN(x, y) ((x) < (y) ? (x) : (y)) @@ -108,7 +109,7 @@ static void set_primary_if(struct bat_priv *bat_priv, set_main_if_addr(batman_if->net_dev->dev_addr); batman_packet = (struct batman_packet *)(batman_if->packet_buff); - batman_packet->flags = 0; + batman_packet->flags = PRIMARIES_FIRST_HOP; batman_packet->ttl = TTL; /*** @@ -432,6 +433,11 @@ out: return NOTIFY_DONE; } +static int batman_skb_recv_finish(struct sk_buff *skb) +{ + return NF_ACCEPT; +} + /* receive a packet with the batman ethertype coming on a hard * interface */ int batman_skb_recv(struct sk_buff *skb, struct net_device *dev, @@ -451,6 +457,13 @@ int batman_skb_recv(struct sk_buff *skb, struct net_device *dev, if (atomic_read(&module_state) != MODULE_ACTIVE) goto err_free; + /* if netfilter/ebtables wants to block incoming batman + * packets then give them a chance to do so here */ + ret = NF_HOOK(PF_BRIDGE, NF_BR_LOCAL_IN, skb, dev, NULL, + batman_skb_recv_finish); + if (ret != 1) + goto err_out; + /* packet should hold at least type and version */ if (unlikely(skb_headlen(skb) < 2)) goto err_free; @@ -499,7 +512,7 @@ int batman_skb_recv(struct sk_buff *skb, struct net_device *dev, /* unicast packet */ case BAT_UNICAST: - ret = recv_unicast_packet(skb); + ret = recv_unicast_packet(skb, batman_if); break; /* broadcast packet */ @@ -530,7 +543,6 @@ err_out: return NET_RX_DROP; } - struct notifier_block hard_if_notifier = { .notifier_call = hard_if_event, }; |