[ARM] 4756/1: [AT91] Makefile cleanup

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

diff --git a/net/netfilter/xt_dccp.c b/net/netfilter/xt_dccp.c
index 2c9c0dee8aaf1ea5e5f541748570a1202d0c25ad..c2b1b24ee335a256ece4cccc1bb6f057b759a0ae 100644 (file)
--- 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,