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authorFlorian Westphal <fw@strlen.de>2018-09-12 15:19:09 +0200
committerPablo Neira Ayuso <pablo@netfilter.org>2018-09-20 18:02:22 +0200
commit83d213fd9d1a56108584cd812333462caa39a747 (patch)
tree09dc6446cc341d9ba55e160e2e3cd696738f0302 /include/net/netfilter/nf_conntrack_l4proto.h
parent9976fc6e6edbb0372f084a2ae8c1b8103b3bff1d (diff)
netfilter: conntrack: deconstify packet callback skb pointer
Only two protocols need the ->error() function: icmp and icmpv6. This is because icmp error mssages might be RELATED to an existing connection (e.g. PMTUD, port unreachable and the like), and their ->error() handlers do this. The error callback is already optional, so remove it for udp and call them from ->packet() instead. As the error() callback can call checksum functions that write to skb->csum*, the const qualifier has to be removed as well. Signed-off-by: Florian Westphal <fw@strlen.de> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Diffstat (limited to 'include/net/netfilter/nf_conntrack_l4proto.h')
-rw-r--r--include/net/netfilter/nf_conntrack_l4proto.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/include/net/netfilter/nf_conntrack_l4proto.h b/include/net/netfilter/nf_conntrack_l4proto.h
index 016958e67fcc..39f0c84f71b9 100644
--- a/include/net/netfilter/nf_conntrack_l4proto.h
+++ b/include/net/netfilter/nf_conntrack_l4proto.h
@@ -43,7 +43,7 @@ struct nf_conntrack_l4proto {
/* Returns verdict for packet, or -1 for invalid. */
int (*packet)(struct nf_conn *ct,
- const struct sk_buff *skb,
+ struct sk_buff *skb,
unsigned int dataoff,
enum ip_conntrack_info ctinfo,
const struct nf_hook_state *state);