X-Git-Url: http://pilppa.org/gitweb/gitweb.cgi?a=blobdiff_plain;f=net%2Fnetfilter%2Fxt_length.c;h=b8640f97295007166a27d31eb9db1d8e4255b766;hb=9e8e2d2ab58ee942b700a9453541d7539b704994;hp=77288c5ada78795cf7346dbd46993904d8a5696e;hpb=bc95f3669f5e6f63cf0b84fe4922c3c6dd4aa775;p=linux-2.6-omap-h63xx.git

diff --git a/net/netfilter/xt_length.c b/net/netfilter/xt_length.c
index 77288c5ada7..b8640f97295 100644
--- a/net/netfilter/xt_length.c
+++ b/net/netfilter/xt_length.c
@@ -15,20 +15,16 @@
 #include <linux/netfilter/x_tables.h>
 
 MODULE_AUTHOR("James Morris <jmorris@intercode.com.au>");
-MODULE_DESCRIPTION("IP tables packet length matching module");
+MODULE_DESCRIPTION("Xtables: Packet length (Layer3,4,5) match");
 MODULE_LICENSE("GPL");
 MODULE_ALIAS("ipt_length");
 MODULE_ALIAS("ip6t_length");
 
-static int
-match(const struct sk_buff *skb,
-      const struct net_device *in,
-      const struct net_device *out,
-      const struct xt_match *match,
-      const void *matchinfo,
-      int offset,
-      unsigned int protoff,
-      int *hotdrop)
+static bool
+length_mt(const struct sk_buff *skb, const struct net_device *in,
+          const struct net_device *out, const struct xt_match *match,
+          const void *matchinfo, int offset, unsigned int protoff,
+          bool *hotdrop)
 {
 	const struct xt_length_info *info = matchinfo;
 	u_int16_t pktlen = ntohs(ip_hdr(skb)->tot_len);
@@ -36,50 +32,45 @@ match(const struct sk_buff *skb,
 	return (pktlen >= info->min && pktlen <= info->max) ^ info->invert;
 }
 
-static int
-match6(const struct sk_buff *skb,
-       const struct net_device *in,
-       const struct net_device *out,
-       const struct xt_match *match,
-       const void *matchinfo,
-       int offset,
-       unsigned int protoff,
-       int *hotdrop)
+static bool
+length_mt6(const struct sk_buff *skb, const struct net_device *in,
+           const struct net_device *out, const struct xt_match *match,
+           const void *matchinfo, int offset, unsigned int protoff,
+           bool *hotdrop)
 {
 	const struct xt_length_info *info = matchinfo;
-	const u_int16_t pktlen = (ntohs(ipv6_hdr(skb)->payload_len) +
-				  sizeof(struct ipv6hdr));
+	const u_int16_t pktlen = ntohs(ipv6_hdr(skb)->payload_len) +
+				 sizeof(struct ipv6hdr);
 
 	return (pktlen >= info->min && pktlen <= info->max) ^ info->invert;
 }
 
-static struct xt_match xt_length_match[] = {
+static struct xt_match length_mt_reg[] __read_mostly = {
 	{
 		.name		= "length",
 		.family		= AF_INET,
-		.match		= match,
+		.match		= length_mt,
 		.matchsize	= sizeof(struct xt_length_info),
 		.me		= THIS_MODULE,
 	},
 	{
 		.name		= "length",
 		.family		= AF_INET6,
-		.match		= match6,
+		.match		= length_mt6,
 		.matchsize	= sizeof(struct xt_length_info),
 		.me		= THIS_MODULE,
 	},
 };
 
-static int __init xt_length_init(void)
+static int __init length_mt_init(void)
 {
-	return xt_register_matches(xt_length_match,
-				   ARRAY_SIZE(xt_length_match));
+	return xt_register_matches(length_mt_reg, ARRAY_SIZE(length_mt_reg));
 }
 
-static void __exit xt_length_fini(void)
+static void __exit length_mt_exit(void)
 {
-	xt_unregister_matches(xt_length_match, ARRAY_SIZE(xt_length_match));
+	xt_unregister_matches(length_mt_reg, ARRAY_SIZE(length_mt_reg));
 }
 
-module_init(xt_length_init);
-module_exit(xt_length_fini);
+module_init(length_mt_init);
+module_exit(length_mt_exit);