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netfilter: Use flowi4 and flowi6 in xt_TCPMSS 

Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller 2011-03-12 02:16:48 -05:00
parent 5a49d0e04d
commit a1bbb0e698
1 changed files with 10 additions and 5 deletions
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15
net/netfilter/xt_TCPMSS.c
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@ -148,16 +148,21 @@ tcpmss_mangle_packet(struct sk_buff *skb,
static u_int32_t tcpmss_reverse_mtu(const struct sk_buff *skb, static u_int32_t tcpmss_reverse_mtu(const struct sk_buff *skb,
unsigned int family) unsigned int family)
{ {
struct flowi fl = {}; struct flowi fl;
const struct nf_afinfo *ai; const struct nf_afinfo *ai;
struct rtable *rt = NULL; struct rtable *rt = NULL;
u_int32_t mtu = ~0U; u_int32_t mtu = ~0U;
if (family == PF_INET) if (family == PF_INET) {
fl.fl4_dst = ip_hdr(skb)->saddr; struct flowi4 *fl4 = &fl.u.ip4;
else memset(fl4, 0, sizeof(*fl4));
fl.fl6_dst = ipv6_hdr(skb)->saddr; fl4->daddr = ip_hdr(skb)->saddr;
} else {
struct flowi6 *fl6 = &fl.u.ip6;
memset(fl6, 0, sizeof(*fl6));
ipv6_addr_copy(&fl6->daddr, &ipv6_hdr(skb)->saddr);
}
rcu_read_lock(); rcu_read_lock();
ai = nf_get_afinfo(family); ai = nf_get_afinfo(family);
if (ai != NULL) if (ai != NULL)