const struct xt_target *target,
const void *targinfo)
{
- struct iphdr *iph = (*pskb)->nh.iph;
+ struct iphdr *iph = ip_hdr(*pskb);
__be16 newlen;
int ret;
if (ret < 0)
return NF_DROP;
if (ret > 0) {
- iph = (*pskb)->nh.iph;
+ iph = ip_hdr(*pskb);
newlen = htons(ntohs(iph->tot_len) + ret);
nf_csum_replace2(&iph->check, iph->tot_len, newlen);
iph->tot_len = newlen;
const struct xt_target *target,
const void *targinfo)
{
- struct ipv6hdr *ipv6h = (*pskb)->nh.ipv6h;
+ struct ipv6hdr *ipv6h = ipv6_hdr(*pskb);
u8 nexthdr;
int tcphoff;
int ret;
if (ret < 0)
return NF_DROP;
if (ret > 0) {
- ipv6h = (*pskb)->nh.ipv6h;
+ ipv6h = ipv6_hdr(*pskb);
ipv6h->payload_len = htons(ntohs(ipv6h->payload_len) + ret);
}
return XT_CONTINUE;
#define TH_SYN 0x02
/* Must specify -p tcp --syn */
-static inline int find_syn_match(const struct xt_entry_match *m)
+static inline bool find_syn_match(const struct xt_entry_match *m)
{
const struct xt_tcp *tcpinfo = (const struct xt_tcp *)m->data;
if (strcmp(m->u.kernel.match->name, "tcp") == 0 &&
tcpinfo->flg_cmp & TH_SYN &&
!(tcpinfo->invflags & XT_TCP_INV_FLAGS))
- return 1;
+ return true;
- return 0;
+ return false;
}
-static int
+static bool
xt_tcpmss_checkentry4(const char *tablename,
const void *entry,
const struct xt_target *target,
(1 << NF_IP_POST_ROUTING))) != 0) {
printk("xt_TCPMSS: path-MTU clamping only supported in "
"FORWARD, OUTPUT and POSTROUTING hooks\n");
- return 0;
+ return false;
}
if (IPT_MATCH_ITERATE(e, find_syn_match))
- return 1;
+ return true;
printk("xt_TCPMSS: Only works on TCP SYN packets\n");
- return 0;
+ return false;
}
#if defined(CONFIG_IP6_NF_IPTABLES) || defined(CONFIG_IP6_NF_IPTABLES_MODULE)
-static int
+static bool
xt_tcpmss_checkentry6(const char *tablename,
const void *entry,
const struct xt_target *target,
(1 << NF_IP6_POST_ROUTING))) != 0) {
printk("xt_TCPMSS: path-MTU clamping only supported in "
"FORWARD, OUTPUT and POSTROUTING hooks\n");
- return 0;
+ return false;
}
if (IP6T_MATCH_ITERATE(e, find_syn_match))
- return 1;
+ return true;
printk("xt_TCPMSS: Only works on TCP SYN packets\n");
- return 0;
+ return false;
}
#endif