X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=net%2Fbridge%2Fnetfilter%2Febt_802_3.c;h=98534025360f8a4d8c45766921a2791fc80d2218;hb=f586287e0fed366d80822666f70487472ab8793a;hp=9abbc09ccdc376348545791de814ac835bb3194d;hpb=f0eef25339f92f7cd4aeea23d9ae97987a5a1e82;p=linux-2.6

diff --git a/net/bridge/netfilter/ebt_802_3.c b/net/bridge/netfilter/ebt_802_3.c
index 9abbc09ccd..9853402536 100644
--- a/net/bridge/netfilter/ebt_802_3.c
+++ b/net/bridge/netfilter/ebt_802_3.c
@@ -5,7 +5,7 @@
  * Chris Vitale csv@bluetail.com
  *
  * May 2003
- * 
+ *
  */
 
 #include <linux/netfilter_bridge/ebtables.h>
@@ -15,12 +15,12 @@
 static int ebt_filter_802_3(const struct sk_buff *skb, const struct net_device *in,
    const struct net_device *out, const void *data, unsigned int datalen)
 {
-	struct ebt_802_3_info *info = (struct ebt_802_3_info *)data;
-	struct ebt_802_3_hdr *hdr = ebt_802_3_hdr(skb);
+	const struct ebt_802_3_info *info = data;
+	const struct ebt_802_3_hdr *hdr = ebt_802_3_hdr(skb);
 	__be16 type = hdr->llc.ui.ctrl & IS_UI ? hdr->llc.ui.type : hdr->llc.ni.type;
 
 	if (info->bitmask & EBT_802_3_SAP) {
-		if (FWINV(info->sap != hdr->llc.ui.ssap, EBT_802_3_SAP)) 
+		if (FWINV(info->sap != hdr->llc.ui.ssap, EBT_802_3_SAP))
 				return EBT_NOMATCH;
 		if (FWINV(info->sap != hdr->llc.ui.dsap, EBT_802_3_SAP))
 				return EBT_NOMATCH;
@@ -29,7 +29,7 @@ static int ebt_filter_802_3(const struct sk_buff *skb, const struct net_device *
 	if (info->bitmask & EBT_802_3_TYPE) {
 		if (!(hdr->llc.ui.dsap == CHECK_TYPE && hdr->llc.ui.ssap == CHECK_TYPE))
 			return EBT_NOMATCH;
-		if (FWINV(info->type != type, EBT_802_3_TYPE)) 
+		if (FWINV(info->type != type, EBT_802_3_TYPE))
 			return EBT_NOMATCH;
 	}
 
@@ -40,7 +40,7 @@ static struct ebt_match filter_802_3;
 static int ebt_802_3_check(const char *tablename, unsigned int hookmask,
    const struct ebt_entry *e, void *data, unsigned int datalen)
 {
-	struct ebt_802_3_info *info = (struct ebt_802_3_info *)data;
+	const struct ebt_802_3_info *info = data;
 
 	if (datalen < sizeof(struct ebt_802_3_info))
 		return -EINVAL;
@@ -50,8 +50,7 @@ static int ebt_802_3_check(const char *tablename, unsigned int hookmask,
 	return 0;
 }
 
-static struct ebt_match filter_802_3 =
-{
+static struct ebt_match filter_802_3 __read_mostly = {
 	.name		= EBT_802_3_MATCH,
 	.match		= ebt_filter_802_3,
 	.check		= ebt_802_3_check,
@@ -70,4 +69,5 @@ static void __exit ebt_802_3_fini(void)
 
 module_init(ebt_802_3_init);
 module_exit(ebt_802_3_fini);
+MODULE_DESCRIPTION("Ebtables: DSAP/SSAP field and SNAP type matching");
 MODULE_LICENSE("GPL");