autofs4: device node ioctl documentation

[linux-2.6-omap-h63xx.git] / net / bridge / netfilter / ebt_ip.c

diff --git a/net/bridge/netfilter/ebt_ip.c b/net/bridge/netfilter/ebt_ip.c
index 65caa00dcf2a348d0c321a42add55acd40177339..d771bbfbcbe603a5d40844cc947c016abd266152 100644 (file)
--- a/net/bridge/netfilter/ebt_ip.c
+++ b/net/bridge/netfilter/ebt_ip.c
@@ -11,24 +11,23 @@
  *    Innominate Security Technologies AG <mhopf@innominate.com>
  *    September, 2002
  */
-
-#include <linux/netfilter_bridge/ebtables.h>
-#include <linux/netfilter_bridge/ebt_ip.h>
 #include <linux/ip.h>
 #include <net/ip.h>
 #include <linux/in.h>
 #include <linux/module.h>
+#include <linux/netfilter/x_tables.h>
+#include <linux/netfilter_bridge/ebtables.h>
+#include <linux/netfilter_bridge/ebt_ip.h>
 
 struct tcpudphdr {
        __be16 src;
        __be16 dst;
 };
 
-static int ebt_filter_ip(const struct sk_buff *skb, const struct net_device *in,
-   const struct net_device *out, const void *data,
-   unsigned int datalen)
+static bool
+ebt_ip_mt(const struct sk_buff *skb, const struct xt_match_param *par)
 {
-       const struct ebt_ip_info *info = data;
+       const struct ebt_ip_info *info = par->matchinfo;
        const struct iphdr *ih;
        struct iphdr _iph;
        const struct tcpudphdr *pptr;
@@ -36,92 +35,93 @@ static int ebt_filter_ip(const struct sk_buff *skb, const struct net_device *in,
 
        ih = skb_header_pointer(skb, 0, sizeof(_iph), &_iph);
        if (ih == NULL)
-               return EBT_NOMATCH;
+               return false;
        if (info->bitmask & EBT_IP_TOS &&
           FWINV(info->tos != ih->tos, EBT_IP_TOS))
-               return EBT_NOMATCH;
+               return false;
        if (info->bitmask & EBT_IP_SOURCE &&
           FWINV((ih->saddr & info->smsk) !=
           info->saddr, EBT_IP_SOURCE))
-               return EBT_NOMATCH;
+               return false;
        if ((info->bitmask & EBT_IP_DEST) &&
           FWINV((ih->daddr & info->dmsk) !=
           info->daddr, EBT_IP_DEST))
-               return EBT_NOMATCH;
+               return false;
        if (info->bitmask & EBT_IP_PROTO) {
                if (FWINV(info->protocol != ih->protocol, EBT_IP_PROTO))
-                       return EBT_NOMATCH;
+                       return false;
                if (!(info->bitmask & EBT_IP_DPORT) &&
                    !(info->bitmask & EBT_IP_SPORT))
-                       return EBT_MATCH;
+                       return true;
                if (ntohs(ih->frag_off) & IP_OFFSET)
-                       return EBT_NOMATCH;
+                       return false;
                pptr = skb_header_pointer(skb, ih->ihl*4,
                                          sizeof(_ports), &_ports);
                if (pptr == NULL)
-                       return EBT_NOMATCH;
+                       return false;
                if (info->bitmask & EBT_IP_DPORT) {
                        u32 dst = ntohs(pptr->dst);
                        if (FWINV(dst < info->dport[0] ||
                                  dst > info->dport[1],
                                  EBT_IP_DPORT))
-                       return EBT_NOMATCH;
+                       return false;
                }
                if (info->bitmask & EBT_IP_SPORT) {
                        u32 src = ntohs(pptr->src);
                        if (FWINV(src < info->sport[0] ||
                                  src > info->sport[1],
                                  EBT_IP_SPORT))
-                       return EBT_NOMATCH;
+                       return false;
                }
        }
-       return EBT_MATCH;
+       return true;
 }
 
-static int ebt_ip_check(const char *tablename, unsigned int hookmask,
-   const struct ebt_entry *e, void *data, unsigned int datalen)
+static bool ebt_ip_mt_check(const struct xt_mtchk_param *par)
 {
-       const struct ebt_ip_info *info = data;
+       const struct ebt_ip_info *info = par->matchinfo;
+       const struct ebt_entry *e = par->entryinfo;
 
-       if (datalen != EBT_ALIGN(sizeof(struct ebt_ip_info)))
-               return -EINVAL;
        if (e->ethproto != htons(ETH_P_IP) ||
           e->invflags & EBT_IPROTO)
-               return -EINVAL;
+               return false;
        if (info->bitmask & ~EBT_IP_MASK || info->invflags & ~EBT_IP_MASK)
-               return -EINVAL;
+               return false;
        if (info->bitmask & (EBT_IP_DPORT | EBT_IP_SPORT)) {
                if (info->invflags & EBT_IP_PROTO)
-                       return -EINVAL;
+                       return false;
                if (info->protocol != IPPROTO_TCP &&
                    info->protocol != IPPROTO_UDP &&
                    info->protocol != IPPROTO_UDPLITE &&
                    info->protocol != IPPROTO_SCTP &&
                    info->protocol != IPPROTO_DCCP)
-                        return -EINVAL;
+                        return false;
        }
        if (info->bitmask & EBT_IP_DPORT && info->dport[0] > info->dport[1])
-               return -EINVAL;
+               return false;
        if (info->bitmask & EBT_IP_SPORT && info->sport[0] > info->sport[1])
-               return -EINVAL;
-       return 0;
+               return false;
+       return true;
 }
 
-static struct ebt_match filter_ip __read_mostly = {
-       .name           = EBT_IP_MATCH,
-       .match          = ebt_filter_ip,
-       .check          = ebt_ip_check,
+static struct xt_match ebt_ip_mt_reg __read_mostly = {
+       .name           = "ip",
+       .revision       = 0,
+       .family         = NFPROTO_BRIDGE,
+       .match          = ebt_ip_mt,
+       .checkentry     = ebt_ip_mt_check,
+       .matchsize      = XT_ALIGN(sizeof(struct ebt_ip_info)),
        .me             = THIS_MODULE,
 };
 
 static int __init ebt_ip_init(void)
 {
-       return ebt_register_match(&filter_ip);
+       return xt_register_match(&ebt_ip_mt_reg);
 }
 
 static void __exit ebt_ip_fini(void)
 {
-       ebt_unregister_match(&filter_ip);
+       xt_unregister_match(&ebt_ip_mt_reg);
 }
 
 module_init(ebt_ip_init);