X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=net%2Fipv6%2Fnetfilter%2Fip6t_HL.c;h=d5f8fd5f29d3eb650ae514aa560aad3d3d485059;hb=a14ad05f47b55ea84136eb4da43ea96fa469326a;hp=4115a576ba25df785d06bd9498df6e02c9f60cdb;hpb=b7405e16435f710edfae6ba32bef4ca20d3de145;p=linux-2.6

diff --git a/net/ipv6/netfilter/ip6t_HL.c b/net/ipv6/netfilter/ip6t_HL.c
index 4115a576ba..d5f8fd5f29 100644
--- a/net/ipv6/netfilter/ip6t_HL.c
+++ b/net/ipv6/netfilter/ip6t_HL.c
@@ -15,24 +15,22 @@
 #include <linux/netfilter_ipv6/ip6t_HL.h>
 
 MODULE_AUTHOR("Maciej Soltysiak <solt@dns.toxicfilms.tv>");
-MODULE_DESCRIPTION("IP6 tables Hop Limit modification module");
+MODULE_DESCRIPTION("Xtables: IPv6 Hop Limit field modification target");
 MODULE_LICENSE("GPL");
 
-static unsigned int ip6t_hl_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)
+static unsigned int
+hl_tg6(struct sk_buff *skb, const struct net_device *in,
+       const struct net_device *out, unsigned int hooknum,
+       const struct xt_target *target, const void *targinfo)
 {
 	struct ipv6hdr *ip6h;
 	const struct ip6t_HL_info *info = targinfo;
 	int new_hl;
 
-	if (!skb_make_writable(pskb, (*pskb)->len))
+	if (!skb_make_writable(skb, skb->len))
 		return NF_DROP;
 
-	ip6h = ipv6_hdr(*pskb);
+	ip6h = ipv6_hdr(skb);
 
 	switch (info->mode) {
 		case IP6T_HL_SET:
@@ -58,46 +56,45 @@ static unsigned int ip6t_hl_target(struct sk_buff **pskb,
 	return XT_CONTINUE;
 }
 
-static int ip6t_hl_checkentry(const char *tablename,
-		const void *entry,
-		const struct xt_target *target,
-		void *targinfo,
-		unsigned int hook_mask)
+static bool
+hl_tg6_check(const char *tablename, const void *entry,
+             const struct xt_target *target, void *targinfo,
+             unsigned int hook_mask)
 {
-	struct ip6t_HL_info *info = targinfo;
+	const struct ip6t_HL_info *info = targinfo;
 
 	if (info->mode > IP6T_HL_MAXMODE) {
 		printk(KERN_WARNING "ip6t_HL: invalid or unknown Mode %u\n",
 			info->mode);
-		return 0;
+		return false;
 	}
-	if ((info->mode != IP6T_HL_SET) && (info->hop_limit == 0)) {
+	if (info->mode != IP6T_HL_SET && info->hop_limit == 0) {
 		printk(KERN_WARNING "ip6t_HL: increment/decrement doesn't "
 			"make sense with value 0\n");
-		return 0;
+		return false;
 	}
-	return 1;
+	return true;
 }
 
-static struct xt_target ip6t_HL = {
+static struct xt_target hl_tg6_reg __read_mostly = {
 	.name 		= "HL",
 	.family		= AF_INET6,
-	.target		= ip6t_hl_target,
+	.target		= hl_tg6,
 	.targetsize	= sizeof(struct ip6t_HL_info),
 	.table		= "mangle",
-	.checkentry	= ip6t_hl_checkentry,
+	.checkentry	= hl_tg6_check,
 	.me		= THIS_MODULE
 };
 
-static int __init ip6t_hl_init(void)
+static int __init hl_tg6_init(void)
 {
-	return xt_register_target(&ip6t_HL);
+	return xt_register_target(&hl_tg6_reg);
 }
 
-static void __exit ip6t_hl_fini(void)
+static void __exit hl_tg6_exit(void)
 {
-	xt_unregister_target(&ip6t_HL);
+	xt_unregister_target(&hl_tg6_reg);
 }
 
-module_init(ip6t_hl_init);
-module_exit(ip6t_hl_fini);
+module_init(hl_tg6_init);
+module_exit(hl_tg6_exit);