int tmp = tp->mss_cache;
if (sk->sk_route_caps & NETIF_F_SG) {
- if (sk->sk_route_caps & NETIF_F_TSO)
+ if (sk_can_gso(sk))
tmp = 0;
else {
int pgbreak = SKB_MAX_HEAD(MAX_TCP_HEADER);
if (!pskb_may_pull(skb, thlen))
goto out;
- segs = NULL;
- if (skb_gso_ok(skb, features | NETIF_F_GSO_ROBUST))
- goto out;
-
oldlen = (u16)~skb->len;
__skb_pull(skb, thlen);
+ if (skb_gso_ok(skb, features | NETIF_F_GSO_ROBUST)) {
+ /* Packet is from an untrusted source, reset gso_segs. */
+ int mss = skb_shinfo(skb)->gso_size;
+
+ skb_shinfo(skb)->gso_segs = (skb->len + mss - 1) / mss;
+
+ segs = NULL;
+ goto out;
+ }
+
segs = skb_segment(skb, features);
if (IS_ERR(segs))
goto out;
out:
return segs;
}
+EXPORT_SYMBOL(tcp_tso_segment);
extern void __skb_cb_too_small_for_tcp(int, int);
extern struct tcp_congestion_ops tcp_reno;