MODULE_DESCRIPTION("iptables TCP MSS match module");
MODULE_ALIAS("ipt_tcpmss");
-static int
+static bool
match(const struct sk_buff *skb,
const struct net_device *in,
const struct net_device *out,
const void *matchinfo,
int offset,
unsigned int protoff,
- int *hotdrop)
+ bool *hotdrop)
{
const struct xt_tcpmss_match_info *info = matchinfo;
struct tcphdr _tcph, *th;
u_int16_t mssval;
mssval = (op[i+2] << 8) | op[i+3];
-
+
return (mssval >= info->mss_min &&
- mssval <= info->mss_max) ^ info->invert;
+ mssval <= info->mss_max) ^ info->invert;
}
if (op[i] < 2)
i++;
return info->invert;
dropit:
- *hotdrop = 1;
- return 0;
+ *hotdrop = true;
+ return false;
}
static struct xt_match xt_tcpmss_match[] = {