netfilter: Use flowi4 and flowi6 in xt_TCPMSS

Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/netfilter/xt_TCPMSS.c b/net/netfilter/xt_TCPMSS.c
index eb81c380da1ba11d2f212499f43636ef09f9a327..6e6b46cb1db9ba6c75c98bf742ef02e3022fe0cd 100644 (file)
--- a/net/netfilter/xt_TCPMSS.c
+++ b/net/netfilter/xt_TCPMSS.c
@@ -148,16 +148,21 @@ tcpmss_mangle_packet(struct sk_buff *skb,
 static u_int32_t tcpmss_reverse_mtu(const struct sk_buff *skb,
                                    unsigned int family)
 {
-       struct flowi fl = {};
+       struct flowi fl;
        const struct nf_afinfo *ai;
        struct rtable *rt = NULL;
        u_int32_t mtu     = ~0U;
 
-       if (family == PF_INET)
-               fl.fl4_dst = ip_hdr(skb)->saddr;
-       else
-               fl.fl6_dst = ipv6_hdr(skb)->saddr;
+       if (family == PF_INET) {
+               struct flowi4 *fl4 = &fl.u.ip4;
+               memset(fl4, 0, sizeof(*fl4));
+               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();
        ai = nf_get_afinfo(family);
        if (ai != NULL)