iph->check = 0;
iph->check = ip_fast_csum((unsigned char *)iph, iph->ihl);
}
+EXPORT_SYMBOL(ip_send_check);
int __ip_local_out(struct sk_buff *skb)
{
/* Send it out. */
return ip_local_out(skb);
}
-
EXPORT_SYMBOL_GPL(ip_build_and_send_pkt);
static inline int ip_finish_output2(struct sk_buff *skb)
kfree_skb(skb);
return -EHOSTUNREACH;
}
+EXPORT_SYMBOL(ip_queue_xmit);
static void ip_copy_metadata(struct sk_buff *to, struct sk_buff *from)
to->priority = from->priority;
to->protocol = from->protocol;
skb_dst_drop(to);
- skb_dst_set(to, dst_clone(skb_dst(from)));
+ skb_dst_copy(to, from);
to->dev = from->dev;
to->mark = from->mark;
int ip_fragment(struct sk_buff *skb, int (*output)(struct sk_buff *))
{
struct iphdr *iph;
- int raw = 0;
int ptr;
struct net_device *dev;
struct sk_buff *skb2;
- unsigned int mtu, hlen, left, len, ll_rs, pad;
+ unsigned int mtu, hlen, left, len, ll_rs;
int offset;
__be16 not_last_frag;
struct rtable *rt = skb_rtable(skb);
slow_path:
left = skb->len - hlen; /* Space per frame */
- ptr = raw + hlen; /* Where to start from */
+ ptr = hlen; /* Where to start from */
/* for bridged IP traffic encapsulated inside f.e. a vlan header,
* we need to make room for the encapsulating header
*/
- pad = nf_bridge_pad(skb);
- ll_rs = LL_RESERVED_SPACE_EXTRA(rt->dst.dev, pad);
- mtu -= pad;
+ ll_rs = LL_RESERVED_SPACE_EXTRA(rt->dst.dev, nf_bridge_pad(skb));
/*
* Fragment the datagram.
IP_INC_STATS(dev_net(dev), IPSTATS_MIB_FRAGFAILS);
return err;
}
-
EXPORT_SYMBOL(ip_fragment);
int
}
return 0;
}
+EXPORT_SYMBOL(ip_generic_getfrag);
static inline __wsum
csum_page(struct page *page, int offset, int copy)
!exthdrlen)
csummode = CHECKSUM_PARTIAL;
+ skb = skb_peek_tail(&sk->sk_write_queue);
+
inet->cork.length += length;
- if (((length> mtu) || !skb_queue_empty(&sk->sk_write_queue)) &&
+ if (((length > mtu) || (skb && skb_is_gso(skb))) &&
(sk->sk_protocol == IPPROTO_UDP) &&
(rt->dst.dev->features & NETIF_F_UFO)) {
err = ip_ufo_append_data(sk, getfrag, from, length, hh_len,
* adding appropriate IP header.
*/
- if ((skb = skb_peek_tail(&sk->sk_write_queue)) == NULL)
+ if (!skb)
goto alloc_new_skb;
while (length > 0) {
return -EINVAL;
inet->cork.length += size;
- if ((sk->sk_protocol == IPPROTO_UDP) &&
+ if ((size + skb->len > mtu) &&
+ (sk->sk_protocol == IPPROTO_UDP) &&
(rt->dst.dev->features & NETIF_F_UFO)) {
skb_shinfo(skb)->gso_size = mtu - fragheaderlen;
skb_shinfo(skb)->gso_type = SKB_GSO_UDP;
igmp_mc_proc_init();
#endif
}
-
-EXPORT_SYMBOL(ip_generic_getfrag);
-EXPORT_SYMBOL(ip_queue_xmit);
-EXPORT_SYMBOL(ip_send_check);