Contributors: 14
| Author |
Tokens |
Token Proportion |
Commits |
Commit Proportion |
| Vlad Yasevich |
228 |
67.26% |
4 |
15.38% |
| Tom Herbert |
53 |
15.63% |
2 |
7.69% |
| Herbert Xu |
17 |
5.01% |
4 |
15.38% |
| Jerry Chu |
6 |
1.77% |
2 |
7.69% |
| Daniel Borkmann |
5 |
1.47% |
1 |
3.85% |
| Linus Torvalds (pre-git) |
5 |
1.47% |
3 |
11.54% |
| Willem de Bruijn |
5 |
1.47% |
1 |
3.85% |
| Paolo Abeni |
5 |
1.47% |
2 |
7.69% |
| Eric Dumazet |
4 |
1.18% |
2 |
7.69% |
| Parav Pandit |
3 |
0.88% |
1 |
3.85% |
| Arnaldo Carvalho de Melo |
3 |
0.88% |
1 |
3.85% |
| Kazunori Miyazawa |
2 |
0.59% |
1 |
3.85% |
| Thomas Gleixner |
2 |
0.59% |
1 |
3.85% |
| David S. Miller |
1 |
0.29% |
1 |
3.85% |
| Total |
339 |
|
26 |
|
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* IPV6 GSO/GRO offload support
* Linux INET6 implementation
*
* TCPv6 GSO/GRO support
*/
#include <linux/indirect_call_wrapper.h>
#include <linux/skbuff.h>
#include <net/gro.h>
#include <net/protocol.h>
#include <net/tcp.h>
#include <net/ip6_checksum.h>
#include "ip6_offload.h"
INDIRECT_CALLABLE_SCOPE
struct sk_buff *tcp6_gro_receive(struct list_head *head, struct sk_buff *skb)
{
/* Don't bother verifying checksum if we're going to flush anyway. */
if (!NAPI_GRO_CB(skb)->flush &&
skb_gro_checksum_validate(skb, IPPROTO_TCP,
ip6_gro_compute_pseudo)) {
NAPI_GRO_CB(skb)->flush = 1;
return NULL;
}
return tcp_gro_receive(head, skb);
}
INDIRECT_CALLABLE_SCOPE int tcp6_gro_complete(struct sk_buff *skb, int thoff)
{
const struct ipv6hdr *iph = ipv6_hdr(skb);
struct tcphdr *th = tcp_hdr(skb);
th->check = ~tcp_v6_check(skb->len - thoff, &iph->saddr,
&iph->daddr, 0);
skb_shinfo(skb)->gso_type |= SKB_GSO_TCPV6;
tcp_gro_complete(skb);
return 0;
}
static struct sk_buff *tcp6_gso_segment(struct sk_buff *skb,
netdev_features_t features)
{
struct tcphdr *th;
if (!(skb_shinfo(skb)->gso_type & SKB_GSO_TCPV6))
return ERR_PTR(-EINVAL);
if (!pskb_may_pull(skb, sizeof(*th)))
return ERR_PTR(-EINVAL);
if (unlikely(skb->ip_summed != CHECKSUM_PARTIAL)) {
const struct ipv6hdr *ipv6h = ipv6_hdr(skb);
struct tcphdr *th = tcp_hdr(skb);
/* Set up pseudo header, usually expect stack to have done
* this.
*/
th->check = 0;
skb->ip_summed = CHECKSUM_PARTIAL;
__tcp_v6_send_check(skb, &ipv6h->saddr, &ipv6h->daddr);
}
return tcp_gso_segment(skb, features);
}
static const struct net_offload tcpv6_offload = {
.callbacks = {
.gso_segment = tcp6_gso_segment,
.gro_receive = tcp6_gro_receive,
.gro_complete = tcp6_gro_complete,
},
};
int __init tcpv6_offload_init(void)
{
return inet6_add_offload(&tcpv6_offload, IPPROTO_TCP);
}