X-Git-Url: http://pilppa.org/gitweb/gitweb.cgi?a=blobdiff_plain;f=net%2Fnetfilter%2Fxt_dccp.c;h=c2b1b24ee335a256ece4cccc1bb6f057b759a0ae;hb=b7b272a8826a2332f689853792eb8c42477fec85;hp=2c9c0dee8aaf1ea5e5f541748570a1202d0c25ad;hpb=d9bc125caf592b7d081021f32ce5b717efdf70c8;p=linux-2.6-omap-h63xx.git

diff --git a/net/netfilter/xt_dccp.c b/net/netfilter/xt_dccp.c
index 2c9c0dee8aa..c2b1b24ee33 100644
--- a/net/netfilter/xt_dccp.c
+++ b/net/netfilter/xt_dccp.c
@@ -24,6 +24,7 @@ MODULE_LICENSE("GPL");
 MODULE_AUTHOR("Harald Welte <laforge@netfilter.org>");
 MODULE_DESCRIPTION("Match for DCCP protocol packets");
 MODULE_ALIAS("ipt_dccp");
+MODULE_ALIAS("ip6t_dccp");
 
 #define DCCHECK(cond, option, flag, invflag) (!((flag) & (option)) \
 				  || (!!((invflag) & (option)) ^ (cond)))
@@ -31,40 +32,40 @@ MODULE_ALIAS("ipt_dccp");
 static unsigned char *dccp_optbuf;
 static DEFINE_SPINLOCK(dccp_buflock);
 
-static inline int
+static inline bool
 dccp_find_option(u_int8_t option,
 		 const struct sk_buff *skb,
 		 unsigned int protoff,
 		 const struct dccp_hdr *dh,
-		 int *hotdrop)
+		 bool *hotdrop)
 {
 	/* tcp.doff is only 4 bits, ie. max 15 * 4 bytes */
-	unsigned char *op;
+	const unsigned char *op;
 	unsigned int optoff = __dccp_hdr_len(dh);
 	unsigned int optlen = dh->dccph_doff*4 - __dccp_hdr_len(dh);
 	unsigned int i;
 
 	if (dh->dccph_doff * 4 < __dccp_hdr_len(dh)) {
-		*hotdrop = 1;
-		return 0;
+		*hotdrop = true;
+		return false;
 	}
 
 	if (!optlen)
-		return 0;
+		return false;
 
 	spin_lock_bh(&dccp_buflock);
 	op = skb_header_pointer(skb, protoff + optoff, optlen, dccp_optbuf);
 	if (op == NULL) {
 		/* If we don't have the whole header, drop packet. */
 		spin_unlock_bh(&dccp_buflock);
-		*hotdrop = 1;
-		return 0;
+		*hotdrop = true;
+		return false;
 	}
 
 	for (i = 0; i < optlen; ) {
 		if (op[i] == option) {
 			spin_unlock_bh(&dccp_buflock);
-			return 1;
+			return true;
 		}
 
 		if (op[i] < 2)
@@ -74,24 +75,24 @@ dccp_find_option(u_int8_t option,
 	}
 
 	spin_unlock_bh(&dccp_buflock);
-	return 0;
+	return false;
 }
 
 
-static inline int
+static inline bool
 match_types(const struct dccp_hdr *dh, u_int16_t typemask)
 {
-	return (typemask & (1 << dh->dccph_type));
+	return typemask & (1 << dh->dccph_type);
 }
 
-static inline int
+static inline bool
 match_option(u_int8_t option, const struct sk_buff *skb, unsigned int protoff,
-	     const struct dccp_hdr *dh, int *hotdrop)
+	     const struct dccp_hdr *dh, bool *hotdrop)
 {
 	return dccp_find_option(option, skb, protoff, dh, hotdrop);
 }
 
-static int
+static bool
 match(const struct sk_buff *skb,
       const struct net_device *in,
       const struct net_device *out,
@@ -99,25 +100,25 @@ match(const struct sk_buff *skb,
       const void *matchinfo,
       int offset,
       unsigned int protoff,
-      int *hotdrop)
+      bool *hotdrop)
 {
 	const struct xt_dccp_info *info = matchinfo;
 	struct dccp_hdr _dh, *dh;
 
 	if (offset)
-		return 0;
+		return false;
 
 	dh = skb_header_pointer(skb, protoff, sizeof(_dh), &_dh);
 	if (dh == NULL) {
-		*hotdrop = 1;
-		return 0;
+		*hotdrop = true;
+		return false;
 	}
 
-	return  DCCHECK(((ntohs(dh->dccph_sport) >= info->spts[0])
-			&& (ntohs(dh->dccph_sport) <= info->spts[1])),
+	return  DCCHECK(ntohs(dh->dccph_sport) >= info->spts[0]
+			&& ntohs(dh->dccph_sport) <= info->spts[1],
 			XT_DCCP_SRC_PORTS, info->flags, info->invflags)
-		&& DCCHECK(((ntohs(dh->dccph_dport) >= info->dpts[0])
-			&& (ntohs(dh->dccph_dport) <= info->dpts[1])),
+		&& DCCHECK(ntohs(dh->dccph_dport) >= info->dpts[0]
+			&& ntohs(dh->dccph_dport) <= info->dpts[1],
 			XT_DCCP_DEST_PORTS, info->flags, info->invflags)
 		&& DCCHECK(match_types(dh, info->typemask),
 			   XT_DCCP_TYPE, info->flags, info->invflags)
@@ -126,7 +127,7 @@ match(const struct sk_buff *skb,
 			   XT_DCCP_OPTION, info->flags, info->invflags);
 }
 
-static int
+static bool
 checkentry(const char *tablename,
 	   const void *inf,
 	   const struct xt_match *match,
@@ -140,7 +141,7 @@ checkentry(const char *tablename,
 		&& !(info->invflags & ~info->flags);
 }
 
-static struct xt_match xt_dccp_match[] = {
+static struct xt_match xt_dccp_match[] __read_mostly = {
 	{
 		.name 		= "dccp",
 		.family		= AF_INET,