netfilter: xtables: move extension arguments into compound structure (1/6)

[deliverable/linux.git] / net / ipv4 / netfilter / ipt_ah.c

diff --git a/net/ipv4/netfilter/ipt_ah.c b/net/ipv4/netfilter/ipt_ah.c
index e2e993edd665d27592cafd99f8e4cf68658bcb34..2fce19ef4f3f545091e8cebe9cc170d65294f750 100644 (file)
--- a/net/ipv4/netfilter/ipt_ah.c
+++ b/net/ipv4/netfilter/ipt_ah.c
@@ -36,27 +36,23 @@ spi_match(u_int32_t min, u_int32_t max, u_int32_t spi, bool invert)
        return r;
 }
 
-static bool
-ah_mt(const struct sk_buff *skb, const struct net_device *in,
-      const struct net_device *out, const struct xt_match *match,
-      const void *matchinfo, int offset, unsigned int protoff, bool *hotdrop)
+static bool ah_mt(const struct sk_buff *skb, const struct xt_match_param *par)
 {
        struct ip_auth_hdr _ahdr;
        const struct ip_auth_hdr *ah;
-       const struct ipt_ah *ahinfo = matchinfo;
+       const struct ipt_ah *ahinfo = par->matchinfo;
 
        /* Must not be a fragment. */
-       if (offset)
+       if (par->fragoff != 0)
                return false;
 
-       ah = skb_header_pointer(skb, protoff,
-                               sizeof(_ahdr), &_ahdr);
+       ah = skb_header_pointer(skb, par->thoff, sizeof(_ahdr), &_ahdr);
        if (ah == NULL) {
                /* We've been asked to examine this packet, and we
                 * can't.  Hence, no choice but to drop.
                 */
                duprintf("Dropping evil AH tinygram.\n");
-               *hotdrop = true;
+               *par->hotdrop = true;
                return 0;
        }