Define a new inline function to map conntrack status to enum
ip_conntrack_info. This removes the need to otherwise duplicate this
code in a later patch ("openvswitch: Find existing conntrack entry
after upcall.").
Signed-off-by: Jarno Rajahalme <ja...@ovn.org>
---
include/net/netfilter/nf_conntrack.h | 15 +++++++++++++++
net/netfilter/nf_conntrack_core.c | 28 +++++++++-------------------
2 files changed, 24 insertions(+), 19 deletions(-)
diff --git a/include/net/netfilter/nf_conntrack.h
b/include/net/netfilter/nf_conntrack.h
index fde4068..b3de10e 100644
--- a/include/net/netfilter/nf_conntrack.h
+++ b/include/net/netfilter/nf_conntrack.h
@@ -125,6 +125,21 @@ nf_ct_tuplehash_to_ctrack(const struct
nf_conntrack_tuple_hash *hash)
tuplehash[hash->tuple.dst.dir]);
}
+static inline enum ip_conntrack_info
+nf_ct_get_info(const struct nf_conntrack_tuple_hash *h)
+{
+ const struct nf_conn *ct = nf_ct_tuplehash_to_ctrack(h);
+
+ if (NF_CT_DIRECTION(h) == IP_CT_DIR_REPLY)
+ return IP_CT_ESTABLISHED_REPLY;
+ /* Once we've had two way comms, always ESTABLISHED. */
+ if (test_bit(IPS_SEEN_REPLY_BIT, &ct->status))
+ return IP_CT_ESTABLISHED;
+ if (test_bit(IPS_EXPECTED_BIT, &ct->status))
+ return IP_CT_RELATED;
+ return IP_CT_NEW;
+}
+
static inline u_int16_t nf_ct_l3num(const struct nf_conn *ct)
{
return ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple.src.l3num;
diff --git a/net/netfilter/nf_conntrack_core.c
b/net/netfilter/nf_conntrack_core.c
index 3cb3cb8..7546fc7 100644
--- a/net/netfilter/nf_conntrack_core.c
+++ b/net/netfilter/nf_conntrack_core.c
@@ -1056,25 +1056,15 @@ resolve_normal_ct(struct net *net, struct nf_conn *tmpl,
ct = nf_ct_tuplehash_to_ctrack(h);
/* It exists; we have (non-exclusive) reference. */
- if (NF_CT_DIRECTION(h) == IP_CT_DIR_REPLY) {
- *ctinfo = IP_CT_ESTABLISHED_REPLY;
- /* Please set reply bit if this packet OK */
- *set_reply = 1;
- } else {
- /* Once we've had two way comms, always ESTABLISHED. */
- if (test_bit(IPS_SEEN_REPLY_BIT, &ct->status)) {
- pr_debug("nf_conntrack_in: normal packet for %p\n", ct);
- *ctinfo = IP_CT_ESTABLISHED;
- } else if (test_bit(IPS_EXPECTED_BIT, &ct->status)) {
- pr_debug("nf_conntrack_in: related packet for %p\n",
- ct);
- *ctinfo = IP_CT_RELATED;
- } else {
- pr_debug("nf_conntrack_in: new packet for %p\n", ct);
- *ctinfo = IP_CT_NEW;
- }
- *set_reply = 0;
- }
+ *ctinfo = nf_ct_get_info(h);
+ if (*ctinfo == IP_CT_ESTABLISHED)
+ pr_debug("nf_conntrack_in: normal packet for %p\n", ct);
+ else if (*ctinfo == IP_CT_RELATED)
+ pr_debug("nf_conntrack_in: related packet for %p\n", ct);
+ else if (*ctinfo == IP_CT_NEW)
+ pr_debug("nf_conntrack_in: new packet for %p\n", ct);
+ *set_reply = NF_CT_DIRECTION(h) == IP_CT_DIR_REPLY;
+
skb->nfct = &ct->ct_general;
skb->nfctinfo = *ctinfo;
return ct;
--
2.1.4
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