ipip: Use tunnel_ip_select_ident() for tunnel IP-Identification.
tunnel_ip_select_ident() is more efficient when generating ip-header
id given inner packet is of ipv4 type.
Signed-off-by: Pravin B Shelar <pshelar@nicira.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/ipv4/ipip.c b/net/ipv4/ipip.c
index 8f024d4..18f5352 100644
--- a/net/ipv4/ipip.c
+++ b/net/ipv4/ipip.c
@@ -478,6 +478,8 @@
__be32 dst = tiph->daddr;
struct flowi4 fl4;
int mtu;
+ int err;
+ int pkt_len;
if (skb->protocol != htons(ETH_P_IP))
goto tx_error;
@@ -591,11 +593,28 @@
iph->tos = INET_ECN_encapsulate(tos, old_iph->tos);
iph->daddr = fl4.daddr;
iph->saddr = fl4.saddr;
+ tunnel_ip_select_ident(skb, old_iph, &rt->dst);
if ((iph->ttl = tiph->ttl) == 0)
iph->ttl = old_iph->ttl;
- iptunnel_xmit(skb, dev);
+ nf_reset(skb);
+ skb->ip_summed = CHECKSUM_NONE;
+
+ pkt_len = skb->len - skb_transport_offset(skb);
+ err = ip_local_out(skb);
+ if (likely(net_xmit_eval(err) == 0)) {
+ struct pcpu_tstats *tstats = this_cpu_ptr(dev->tstats);
+
+ u64_stats_update_begin(&tstats->syncp);
+ tstats->tx_bytes += pkt_len;
+ tstats->tx_packets++;
+ u64_stats_update_end(&tstats->syncp);
+ } else {
+ dev->stats.tx_errors++;
+ dev->stats.tx_aborted_errors++;
+ }
+
return NETDEV_TX_OK;
tx_error_icmp: