Update Linux to v5.10.109
Sourced from [1]
[1] https://cdn.kernel.org/pub/linux/kernel/v5.x/linux-5.10.109.tar.xz
Change-Id: I19bca9fc6762d4e63bcf3e4cba88bbe560d9c76c
Signed-off-by: Olivier Deprez <olivier.deprez@arm.com>
diff --git a/net/ipv6/xfrm6_output.c b/net/ipv6/xfrm6_output.c
index 6b0ed6c..6abb45a 100644
--- a/net/ipv6/xfrm6_output.c
+++ b/net/ipv6/xfrm6_output.c
@@ -23,24 +23,7 @@
}
EXPORT_SYMBOL(xfrm6_find_1stfragopt);
-static int xfrm6_local_dontfrag(struct sk_buff *skb)
-{
- int proto;
- struct sock *sk = skb->sk;
-
- if (sk) {
- if (sk->sk_family != AF_INET6)
- return 0;
-
- proto = sk->sk_protocol;
- if (proto == IPPROTO_UDP || proto == IPPROTO_RAW)
- return inet6_sk(sk)->dontfrag;
- }
-
- return 0;
-}
-
-static void xfrm6_local_rxpmtu(struct sk_buff *skb, u32 mtu)
+void xfrm6_local_rxpmtu(struct sk_buff *skb, u32 mtu)
{
struct flowi6 fl6;
struct sock *sk = skb->sk;
@@ -64,80 +47,9 @@
ipv6_local_error(sk, EMSGSIZE, &fl6, mtu);
}
-static int xfrm6_tunnel_check_size(struct sk_buff *skb)
-{
- int mtu, ret = 0;
- struct dst_entry *dst = skb_dst(skb);
-
- if (skb->ignore_df)
- goto out;
-
- mtu = dst_mtu(dst);
- if (mtu < IPV6_MIN_MTU)
- mtu = IPV6_MIN_MTU;
-
- if ((!skb_is_gso(skb) && skb->len > mtu) ||
- (skb_is_gso(skb) &&
- !skb_gso_validate_network_len(skb, ip6_skb_dst_mtu(skb)))) {
- skb->dev = dst->dev;
- skb->protocol = htons(ETH_P_IPV6);
-
- if (xfrm6_local_dontfrag(skb))
- xfrm6_local_rxpmtu(skb, mtu);
- else if (skb->sk)
- xfrm_local_error(skb, mtu);
- else
- icmpv6_send(skb, ICMPV6_PKT_TOOBIG, 0, mtu);
- ret = -EMSGSIZE;
- }
-out:
- return ret;
-}
-
-int xfrm6_extract_output(struct xfrm_state *x, struct sk_buff *skb)
-{
- int err;
-
- err = xfrm6_tunnel_check_size(skb);
- if (err)
- return err;
-
- XFRM_MODE_SKB_CB(skb)->protocol = ipv6_hdr(skb)->nexthdr;
-
- return xfrm6_extract_header(skb);
-}
-
-int xfrm6_output_finish(struct sock *sk, struct sk_buff *skb)
-{
- memset(IP6CB(skb), 0, sizeof(*IP6CB(skb)));
-
- IP6CB(skb)->flags |= IP6SKB_XFRM_TRANSFORMED;
-
- return xfrm_output(sk, skb);
-}
-
-static int __xfrm6_output_state_finish(struct xfrm_state *x, struct sock *sk,
- struct sk_buff *skb)
-{
- const struct xfrm_state_afinfo *afinfo;
- int ret = -EAFNOSUPPORT;
-
- rcu_read_lock();
- afinfo = xfrm_state_afinfo_get_rcu(x->outer_mode.family);
- if (likely(afinfo))
- ret = afinfo->output_finish(sk, skb);
- else
- kfree_skb(skb);
- rcu_read_unlock();
-
- return ret;
-}
-
static int __xfrm6_output_finish(struct net *net, struct sock *sk, struct sk_buff *skb)
{
- struct xfrm_state *x = skb_dst(skb)->xfrm;
-
- return __xfrm6_output_state_finish(x, sk, skb);
+ return xfrm_output(sk, skb);
}
static int __xfrm6_output(struct net *net, struct sock *sk, struct sk_buff *skb)
@@ -164,7 +76,7 @@
toobig = skb->len > mtu && !skb_is_gso(skb);
- if (toobig && xfrm6_local_dontfrag(skb)) {
+ if (toobig && xfrm6_local_dontfrag(skb->sk)) {
xfrm6_local_rxpmtu(skb, mtu);
kfree_skb(skb);
return -EMSGSIZE;
@@ -179,13 +91,13 @@
__xfrm6_output_finish);
skip_frag:
- return __xfrm6_output_state_finish(x, sk, skb);
+ return xfrm_output(sk, skb);
}
int xfrm6_output(struct net *net, struct sock *sk, struct sk_buff *skb)
{
return NF_HOOK_COND(NFPROTO_IPV6, NF_INET_POST_ROUTING,
- net, sk, skb, NULL, skb_dst(skb)->dev,
+ net, sk, skb, skb->dev, skb_dst(skb)->dev,
__xfrm6_output,
!(IP6CB(skb)->flags & IP6SKB_REROUTED));
}