return port ? port->br->dev : NULL;
}
+static inline struct nf_bridge_info *nf_bridge_alloc(struct sk_buff *skb)
+{
+ skb->nf_bridge = kzalloc(sizeof(struct nf_bridge_info), GFP_ATOMIC);
+ if (likely(skb->nf_bridge))
+ atomic_set(&(skb->nf_bridge->use), 1);
+
+ return skb->nf_bridge;
+}
+
+static inline void nf_bridge_save_header(struct sk_buff *skb)
+{
+ int header_size = 16;
+
+ if (skb->protocol == htons(ETH_P_8021Q))
+ header_size = 18;
+
+ memcpy(skb->nf_bridge->data, skb->data - header_size, header_size);
+}
+
/* PF_BRIDGE/PRE_ROUTING *********************************************/
/* Undo the changes made for ip6tables PREROUTING and continue the
* bridge PRE_ROUTING hook. */
{
struct ipv6hdr *hdr;
u32 pkt_len;
- struct nf_bridge_info *nf_bridge;
if (skb->len < sizeof(struct ipv6hdr))
goto inhdr_error;
goto inhdr_error;
nf_bridge_put(skb->nf_bridge);
- if ((nf_bridge = nf_bridge_alloc(skb)) == NULL)
+ if (!nf_bridge_alloc(skb))
return NF_DROP;
if (!setup_pre_routing(skb))
return NF_DROP;
struct iphdr *iph;
__u32 len;
struct sk_buff *skb = *pskb;
- struct nf_bridge_info *nf_bridge;
if (skb->protocol == htons(ETH_P_IPV6) || IS_VLAN_IPV6(skb)) {
#ifdef CONFIG_SYSCTL
}
nf_bridge_put(skb->nf_bridge);
- if ((nf_bridge = nf_bridge_alloc(skb)) == NULL)
+ if (!nf_bridge_alloc(skb))
return NF_DROP;
if (!setup_pre_routing(skb))
return NF_DROP;
return NF_STOLEN;
}
+static int br_nf_dev_queue_xmit(struct sk_buff *skb)
+{
+ if (skb->protocol == htons(ETH_P_IP) &&
+ skb->len > skb->dev->mtu &&
+ !(skb_shinfo(skb)->ufo_size || skb_shinfo(skb)->tso_size))
+ return ip_fragment(skb, br_dev_queue_push_xmit);
+ else
+ return br_dev_queue_push_xmit(skb);
+}
/* PF_BRIDGE/POST_ROUTING ********************************************/
static unsigned int br_nf_post_routing(unsigned int hook, struct sk_buff **pskb,
realoutdev = nf_bridge->netoutdev;
#endif
NF_HOOK(pf, NF_IP_POST_ROUTING, skb, NULL, realoutdev,
- br_dev_queue_push_xmit);
+ br_nf_dev_queue_xmit);
return NF_STOLEN;
if ((out->hard_start_xmit == br_dev_xmit &&
okfn != br_nf_forward_finish &&
- okfn != br_nf_local_out_finish && okfn != br_dev_queue_push_xmit)
+ okfn != br_nf_local_out_finish && okfn != br_nf_dev_queue_xmit)
#if defined(CONFIG_VLAN_8021Q) || defined(CONFIG_VLAN_8021Q_MODULE)
|| ((out->priv_flags & IFF_802_1Q_VLAN) &&
VLAN_DEV_INFO(out)->real_dev->hard_start_xmit == br_dev_xmit)