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ipv6: raw: add drop reasons

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Use existing helpers and drop reason codes for RAW input path.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Eric Dumazet 2023-02-02 09:40:58 +00:00 committed by Jakub Kicinski
parent dfefcb0c04
commit 8d8ebd77f5
1 changed files with 7 additions and 5 deletions
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12
net/ipv6/raw.c
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@ -355,17 +355,19 @@ void raw6_icmp_error(struct sk_buff *skb, int nexthdr,
static inline int rawv6_rcv_skb(struct sock *sk, struct sk_buff *skb) static inline int rawv6_rcv_skb(struct sock *sk, struct sk_buff *skb)
{ {
enum skb_drop_reason reason;
if ((raw6_sk(sk)->checksum || rcu_access_pointer(sk->sk_filter)) && if ((raw6_sk(sk)->checksum || rcu_access_pointer(sk->sk_filter)) &&
skb_checksum_complete(skb)) { skb_checksum_complete(skb)) {
atomic_inc(&sk->sk_drops); atomic_inc(&sk->sk_drops);
kfree_skb(skb); kfree_skb_reason(skb, SKB_DROP_REASON_SKB_CSUM);
return NET_RX_DROP; return NET_RX_DROP;
} }
/* Charge it to the socket. */ /* Charge it to the socket. */
skb_dst_drop(skb); skb_dst_drop(skb);
if (sock_queue_rcv_skb(sk, skb) < 0) { if (sock_queue_rcv_skb_reason(sk, skb, &reason) < 0) {
kfree_skb(skb); kfree_skb_reason(skb, reason);
return NET_RX_DROP; return NET_RX_DROP;
} }
@ -386,7 +388,7 @@ int rawv6_rcv(struct sock *sk, struct sk_buff *skb)
if (!xfrm6_policy_check(sk, XFRM_POLICY_IN, skb)) { if (!xfrm6_policy_check(sk, XFRM_POLICY_IN, skb)) {
atomic_inc(&sk->sk_drops); atomic_inc(&sk->sk_drops);
kfree_skb(skb); kfree_skb_reason(skb, SKB_DROP_REASON_XFRM_POLICY);
return NET_RX_DROP; return NET_RX_DROP;
} }
@ -410,7 +412,7 @@ int rawv6_rcv(struct sock *sk, struct sk_buff *skb)
if (inet->hdrincl) { if (inet->hdrincl) {
if (skb_checksum_complete(skb)) { if (skb_checksum_complete(skb)) {
atomic_inc(&sk->sk_drops); atomic_inc(&sk->sk_drops);
kfree_skb(skb); kfree_skb_reason(skb, SKB_DROP_REASON_SKB_CSUM);
return NET_RX_DROP; return NET_RX_DROP;
} }
} }