firmware/br-ext-chip-allwinner/board/v83x/kernel/patches/00000-net_ipv6_ip6_output.c...

63 lines
1.8 KiB
Diff

diff -drupN a/net/ipv6/ip6_output.c b/net/ipv6/ip6_output.c
--- a/net/ipv6/ip6_output.c 2018-08-06 17:23:04.000000000 +0300
+++ b/net/ipv6/ip6_output.c 2022-06-12 05:28:14.000000000 +0300
@@ -39,6 +39,7 @@
#include <linux/module.h>
#include <linux/slab.h>
+#include <linux/bpf-cgroup.h>
#include <linux/netfilter.h>
#include <linux/netfilter_ipv6.h>
@@ -66,9 +67,6 @@ static int ip6_finish_output2(struct net
struct in6_addr *nexthop;
int ret;
- skb->protocol = htons(ETH_P_IPV6);
- skb->dev = dev;
-
if (ipv6_addr_is_multicast(&ipv6_hdr(skb)->daddr)) {
struct inet6_dev *idev = ip6_dst_idev(skb_dst(skb));
@@ -131,6 +129,14 @@ static int ip6_finish_output2(struct net
static int ip6_finish_output(struct net *net, struct sock *sk, struct sk_buff *skb)
{
+ int ret;
+
+ ret = BPF_CGROUP_RUN_PROG_INET_EGRESS(sk, skb);
+ if (ret) {
+ kfree_skb(skb);
+ return ret;
+ }
+
if ((skb->len > ip6_skb_dst_mtu(skb) && !skb_is_gso(skb)) ||
dst_allfrag(skb_dst(skb)) ||
(IP6CB(skb)->frag_max_size && skb->len > IP6CB(skb)->frag_max_size))
@@ -144,6 +150,9 @@ int ip6_output(struct net *net, struct s
struct net_device *dev = skb_dst(skb)->dev;
struct inet6_dev *idev = ip6_dst_idev(skb_dst(skb));
+ skb->protocol = htons(ETH_P_IPV6);
+ skb->dev = dev;
+
if (unlikely(idev->cnf.disable_ipv6)) {
IP6_INC_STATS(net, idev, IPSTATS_MIB_OUTDISCARDS);
kfree_skb(skb);
@@ -868,7 +877,6 @@ fail_toobig:
if (skb->sk && dst_allfrag(skb_dst(skb)))
sk_nocaps_add(skb->sk, NETIF_F_GSO_MASK);
- skb->dev = skb_dst(skb)->dev;
icmpv6_send(skb, ICMPV6_PKT_TOOBIG, 0, mtu);
err = -EMSGSIZE;
@@ -1819,6 +1827,7 @@ struct sk_buff *ip6_make_skb(struct sock
ip6_cork_release(&cork, &v6_cork);
return ERR_PTR(err);
}
+
if (ipc6->dontfrag < 0)
ipc6->dontfrag = inet6_sk(sk)->dontfrag;