diff options
Diffstat (limited to 'net/ipv4/netfilter/ip_conntrack_tftp.c')
| -rw-r--r-- | net/ipv4/netfilter/ip_conntrack_tftp.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/net/ipv4/netfilter/ip_conntrack_tftp.c b/net/ipv4/netfilter/ip_conntrack_tftp.c index fe0b634dd37..ef56de2eff0 100644 --- a/net/ipv4/netfilter/ip_conntrack_tftp.c +++ b/net/ipv4/netfilter/ip_conntrack_tftp.c @@ -50,6 +50,7 @@ static int tftp_help(struct sk_buff **pskb, struct tftphdr _tftph, *tfh; struct ip_conntrack_expect *exp; unsigned int ret = NF_ACCEPT; + typeof(ip_nat_tftp_hook) ip_nat_tftp; tfh = skb_header_pointer(*pskb, (*pskb)->nh.iph->ihl*4+sizeof(struct udphdr), @@ -81,8 +82,9 @@ static int tftp_help(struct sk_buff **pskb, DEBUGP("expect: "); DUMP_TUPLE(&exp->tuple); DUMP_TUPLE(&exp->mask); - if (ip_nat_tftp_hook) - ret = ip_nat_tftp_hook(pskb, ctinfo, exp); + ip_nat_tftp = rcu_dereference(ip_nat_tftp_hook); + if (ip_nat_tftp) + ret = ip_nat_tftp(pskb, ctinfo, exp); else if (ip_conntrack_expect_related(exp) != 0) ret = NF_DROP; ip_conntrack_expect_put(exp); |