diff options
Diffstat (limited to 'net/ipv6/udp_offload.c')
| -rw-r--r-- | net/ipv6/udp_offload.c | 29 |
1 files changed, 26 insertions, 3 deletions
diff --git a/net/ipv6/udp_offload.c b/net/ipv6/udp_offload.c index 64b8f05d6735..584157a07759 100644 --- a/net/ipv6/udp_offload.c +++ b/net/ipv6/udp_offload.c @@ -115,8 +115,10 @@ INDIRECT_CALLABLE_SCOPE struct sk_buff *udp6_gro_receive(struct list_head *head, struct sk_buff *skb) { struct udphdr *uh = udp_gro_udphdr(skb); + struct sk_buff *pp; + struct sock *sk; - if (unlikely(!uh) || !static_branch_unlikely(&udpv6_encap_needed_key)) + if (unlikely(!uh)) goto flush; /* Don't bother verifying checksum if we're going to flush anyway. */ @@ -127,12 +129,16 @@ struct sk_buff *udp6_gro_receive(struct list_head *head, struct sk_buff *skb) ip6_gro_compute_pseudo)) goto flush; else if (uh->check) - skb_gro_checksum_try_convert(skb, IPPROTO_UDP, uh->check, + skb_gro_checksum_try_convert(skb, IPPROTO_UDP, ip6_gro_compute_pseudo); skip: NAPI_GRO_CB(skb)->is_ipv6 = 1; - return udp_gro_receive(head, skb, uh, udp6_lib_lookup_skb); + rcu_read_lock(); + sk = static_branch_unlikely(&udpv6_encap_needed_key) ? udp6_lib_lookup_skb(skb, uh->source, uh->dest) : NULL; + pp = udp_gro_receive(head, skb, uh, sk); + rcu_read_unlock(); + return pp; flush: NAPI_GRO_CB(skb)->flush = 1; @@ -144,6 +150,23 @@ INDIRECT_CALLABLE_SCOPE int udp6_gro_complete(struct sk_buff *skb, int nhoff) const struct ipv6hdr *ipv6h = ipv6_hdr(skb); struct udphdr *uh = (struct udphdr *)(skb->data + nhoff); + if (NAPI_GRO_CB(skb)->is_flist) { + uh->len = htons(skb->len - nhoff); + + skb_shinfo(skb)->gso_type |= (SKB_GSO_FRAGLIST|SKB_GSO_UDP_L4); + skb_shinfo(skb)->gso_segs = NAPI_GRO_CB(skb)->count; + + if (skb->ip_summed == CHECKSUM_UNNECESSARY) { + if (skb->csum_level < SKB_MAX_CSUM_LEVEL) + skb->csum_level++; + } else { + skb->ip_summed = CHECKSUM_UNNECESSARY; + skb->csum_level = 0; + } + + return 0; + } + if (uh->check) uh->check = ~udp_v6_check(skb->len - nhoff, &ipv6h->saddr, &ipv6h->daddr, 0); |