diff options
Diffstat (limited to 'net/ipv4/netfilter/ipt_TCPMSS.c')
| -rw-r--r-- | net/ipv4/netfilter/ipt_TCPMSS.c | 16 |
1 files changed, 5 insertions, 11 deletions
diff --git a/net/ipv4/netfilter/ipt_TCPMSS.c b/net/ipv4/netfilter/ipt_TCPMSS.c index c122841e182c..c4fc50ec2ddb 100644 --- a/net/ipv4/netfilter/ipt_TCPMSS.c +++ b/net/ipv4/netfilter/ipt_TCPMSS.c @@ -48,6 +48,7 @@ ipt_tcpmss_target(struct sk_buff **pskb, const struct net_device *in, const struct net_device *out, unsigned int hooknum, + const struct xt_target *target, const void *targinfo, void *userinfo) { @@ -211,6 +212,7 @@ static inline int find_syn_match(const struct ipt_entry_match *m) static int ipt_tcpmss_checkentry(const char *tablename, const void *e_void, + const struct xt_target *target, void *targinfo, unsigned int targinfosize, unsigned int hook_mask) @@ -218,13 +220,6 @@ ipt_tcpmss_checkentry(const char *tablename, const struct ipt_tcpmss_info *tcpmssinfo = targinfo; const struct ipt_entry *e = e_void; - if (targinfosize != IPT_ALIGN(sizeof(struct ipt_tcpmss_info))) { - DEBUGP("ipt_tcpmss_checkentry: targinfosize %u != %u\n", - targinfosize, IPT_ALIGN(sizeof(struct ipt_tcpmss_info))); - return 0; - } - - if((tcpmssinfo->mss == IPT_TCPMSS_CLAMP_PMTU) && ((hook_mask & ~((1 << NF_IP_FORWARD) | (1 << NF_IP_LOCAL_OUT) @@ -233,11 +228,8 @@ ipt_tcpmss_checkentry(const char *tablename, return 0; } - if (e->ip.proto == IPPROTO_TCP - && !(e->ip.invflags & IPT_INV_PROTO) - && IPT_MATCH_ITERATE(e, find_syn_match)) + if (IPT_MATCH_ITERATE(e, find_syn_match)) return 1; - printk("TCPMSS: Only works on TCP SYN packets\n"); return 0; } @@ -245,6 +237,8 @@ ipt_tcpmss_checkentry(const char *tablename, static struct ipt_target ipt_tcpmss_reg = { .name = "TCPMSS", .target = ipt_tcpmss_target, + .targetsize = sizeof(struct ipt_tcpmss_info), + .proto = IPPROTO_TCP, .checkentry = ipt_tcpmss_checkentry, .me = THIS_MODULE, }; |