Next patch makes direct skb->nfct access illegal, reduce noise
in next patch by using accessors we already have.
Signed-off-by: Florian Westphal <fw@xxxxxxxxx>
---
Changes since v2:
silence checkpatch, wrap long lines and remove spaces before casts.
include/net/ip_vs.h | 9 ++++++---
net/netfilter/nf_conntrack_core.c | 15 +++++++++------
2 files changed, 15 insertions(+), 9 deletions(-)
diff --git a/include/net/ip_vs.h b/include/net/ip_vs.h
index cd6018a9ee24..2a344ebd7ebe 100644
--- a/include/net/ip_vs.h
+++ b/include/net/ip_vs.h
@@ -1554,10 +1554,13 @@ static inline void ip_vs_notrack(struct sk_buff *skb)
struct nf_conn *ct = nf_ct_get(skb, &ctinfo);
if (!ct || !nf_ct_is_untracked(ct)) {
- nf_conntrack_put(skb->nfct);
- skb->nfct = &nf_ct_untracked_get()->ct_general;
+ struct nf_conn *untracked;
+
+ nf_conntrack_put(&ct->ct_general);
+ untracked = nf_ct_untracked_get();
+ nf_conntrack_get(&untracked->ct_general);
+ skb->nfct = &untracked->ct_general;
skb->nfctinfo = IP_CT_NEW;
- nf_conntrack_get(skb->nfct);
}
#endif
}
diff --git a/net/netfilter/nf_conntrack_core.c b/net/netfilter/nf_conntrack_core.c
index 86186a2e2715..adb7af3a4c4c 100644
--- a/net/netfilter/nf_conntrack_core.c
+++ b/net/netfilter/nf_conntrack_core.c
@@ -686,8 +686,11 @@ static int nf_ct_resolve_clash(struct net *net, struct sk_buff *skb,
!nfct_nat(ct) &&
!nf_ct_is_dying(ct) &&
atomic_inc_not_zero(&ct->ct_general.use)) {
- nf_ct_acct_merge(ct, ctinfo, (struct nf_conn *)skb->nfct);
- nf_conntrack_put(skb->nfct);
+ enum ip_conntrack_info oldinfo;
+ struct nf_conn *loser_ct = nf_ct_get(skb, &oldinfo);
+
+ nf_ct_acct_merge(ct, ctinfo, loser_ct);
+ nf_conntrack_put(&loser_ct->ct_general);
/* Assign conntrack already in hashes to this skbuff. Don't
* modify skb->nfctinfo to ensure consistent stateful filtering.
*/
@@ -1288,7 +1291,7 @@ unsigned int
nf_conntrack_in(struct net *net, u_int8_t pf, unsigned int hooknum,
struct sk_buff *skb)
{
- struct nf_conn *ct, *tmpl = NULL;
+ struct nf_conn *ct, *tmpl;
enum ip_conntrack_info ctinfo;
struct nf_conntrack_l3proto *l3proto;
struct nf_conntrack_l4proto *l4proto;
@@ -1298,9 +1301,9 @@ nf_conntrack_in(struct net *net, u_int8_t pf, unsigned int hooknum,
int set_reply = 0;
int ret;
- if (skb->nfct) {
+ tmpl = nf_ct_get(skb, &ctinfo);
+ if (tmpl) {
/* Previously seen (loopback or untracked)? Ignore. */
- tmpl = (struct nf_conn *)skb->nfct;
if (!nf_ct_is_template(tmpl)) {
NF_CT_STAT_INC_ATOMIC(net, ignore);
return NF_ACCEPT;
@@ -1364,7 +1367,7 @@ nf_conntrack_in(struct net *net, u_int8_t pf, unsigned int hooknum,
/* Invalid: inverse of the return code tells
* the netfilter core what to do */
pr_debug("nf_conntrack_in: Can't track with proto module\n");
- nf_conntrack_put(skb->nfct);
+ nf_conntrack_put(&ct->ct_general);
skb->nfct = NULL;
NF_CT_STAT_INC_ATOMIC(net, invalid);
if (ret == -NF_DROP)
--
2.7.3
--
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