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skbuff: add and use skb_nfct helper

Browse source 
Followup patch renames skb->nfct and changes its type so add a helper to
avoid intrusive rename change later.

Signed-off-by: Florian Westphal <[email protected]>
Signed-off-by: Pablo Neira Ayuso <[email protected]>
This commit is contained in:
Florian Westphal 2017-01-23 18:21:56 +01:00 • committed by Pablo Neira Ayuso
commit cb9c68363e
15 changed files with 36 additions and 29 deletions
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8
net/ipv6/netfilter/ip6t_SYNPROXY.c
View file

@ -121,8 +121,8 @@ synproxy_send_client_synack(struct net *net,
synproxy_build_options(nth, opts);
synproxy_send_tcp(net, skb, nskb, skb->nfct, IP_CT_ESTABLISHED_REPLY,
niph, nth, tcp_hdr_size);
synproxy_send_tcp(net, skb, nskb, skb_nfct(skb),
IP_CT_ESTABLISHED_REPLY, niph, nth, tcp_hdr_size);
}
static void
@ -244,8 +244,8 @@ synproxy_send_client_ack(struct net *net,
synproxy_build_options(nth, opts);
synproxy_send_tcp(net, skb, nskb, skb->nfct, IP_CT_ESTABLISHED_REPLY,
niph, nth, tcp_hdr_size);
synproxy_send_tcp(net, skb, nskb, skb_nfct(skb),
IP_CT_ESTABLISHED_REPLY, niph, nth, tcp_hdr_size);
}
static bool

4
net/ipv6/netfilter/nf_conntrack_proto_icmpv6.c
View file

@ -153,7 +153,7 @@ icmpv6_error_message(struct net *net, struct nf_conn *tmpl,
enum ip_conntrack_info ctinfo;
struct nf_conntrack_zone tmp;
NF_CT_ASSERT(skb->nfct == NULL);
NF_CT_ASSERT(!skb_nfct(skb));
/* Are they talking about one of our connections? */
if (!nf_ct_get_tuplepr(skb,
@ -224,7 +224,7 @@ icmpv6_error(struct net *net, struct nf_conn *tmpl,
noct_valid_new[type]) {
skb->nfct = &nf_ct_untracked_get()->ct_general;
skb->nfctinfo = IP_CT_NEW;
nf_conntrack_get(skb->nfct);
nf_conntrack_get(skb_nfct(skb));
return NF_ACCEPT;
}

4
net/ipv6/netfilter/nf_defrag_ipv6_hooks.c
View file

@ -37,7 +37,7 @@ static enum ip6_defrag_users nf_ct6_defrag_user(unsigned int hooknum,
{
u16 zone_id = NF_CT_DEFAULT_ZONE_ID;
#if IS_ENABLED(CONFIG_NF_CONNTRACK)
if (skb->nfct) {
if (skb_nfct(skb)) {
enum ip_conntrack_info ctinfo;
const struct nf_conn *ct = nf_ct_get(skb, &ctinfo);
@ -61,7 +61,7 @@ static unsigned int ipv6_defrag(void *priv,
#if IS_ENABLED(CONFIG_NF_CONNTRACK)
/* Previously seen (loopback)? */
if (skb->nfct && !nf_ct_is_template((struct nf_conn *)skb->nfct))
if (skb_nfct(skb) && !nf_ct_is_template((struct nf_conn *)skb_nfct(skb)))
return NF_ACCEPT;
#endif