[NETFILTER]: x_tables: switch xt_match->match to bool

[deliverable/linux.git] / net / netfilter / xt_physdev.c

diff --git a/net/netfilter/xt_physdev.c b/net/netfilter/xt_physdev.c
index a6de512fa840b707d9e5fb1a46bc2d40759df89f..70de6708e8842c97cc7168b5fd88537f93e02c31 100644 (file)
--- a/net/netfilter/xt_physdev.c
+++ b/net/netfilter/xt_physdev.c
@@ -14,8 +14,6 @@
 #include <linux/netfilter/xt_physdev.h>
 #include <linux/netfilter/x_tables.h>
 #include <linux/netfilter_bridge.h>
-#define MATCH   1
-#define NOMATCH 0
 
 MODULE_LICENSE("GPL");
 MODULE_AUTHOR("Bart De Schuymer <bdschuym@pandora.be>");
@@ -23,7 +21,7 @@ MODULE_DESCRIPTION("iptables bridge physical device match module");
 MODULE_ALIAS("ipt_physdev");
 MODULE_ALIAS("ip6t_physdev");
 
-static int
+static bool
 match(const struct sk_buff *skb,
       const struct net_device *in,
       const struct net_device *out,
@@ -36,7 +34,7 @@ match(const struct sk_buff *skb,
        int i;
        static const char nulldevname[IFNAMSIZ];
        const struct xt_physdev_info *info = matchinfo;
-       unsigned int ret;
+       bool ret;
        const char *indev, *outdev;
        struct nf_bridge_info *nf_bridge;
 
@@ -47,58 +45,58 @@ match(const struct sk_buff *skb,
                /* Return MATCH if the invert flags of the used options are on */
                if ((info->bitmask & XT_PHYSDEV_OP_BRIDGED) &&
                    !(info->invert & XT_PHYSDEV_OP_BRIDGED))
-                       return NOMATCH;
+                       return false;
                if ((info->bitmask & XT_PHYSDEV_OP_ISIN) &&
                    !(info->invert & XT_PHYSDEV_OP_ISIN))
-                       return NOMATCH;
+                       return false;
                if ((info->bitmask & XT_PHYSDEV_OP_ISOUT) &&
                    !(info->invert & XT_PHYSDEV_OP_ISOUT))
-                       return NOMATCH;
+                       return false;
                if ((info->bitmask & XT_PHYSDEV_OP_IN) &&
                    !(info->invert & XT_PHYSDEV_OP_IN))
-                       return NOMATCH;
+                       return false;
                if ((info->bitmask & XT_PHYSDEV_OP_OUT) &&
                    !(info->invert & XT_PHYSDEV_OP_OUT))
-                       return NOMATCH;
-               return MATCH;
+                       return false;
+               return true;
        }
 
        /* This only makes sense in the FORWARD and POSTROUTING chains */
        if ((info->bitmask & XT_PHYSDEV_OP_BRIDGED) &&
            (!!(nf_bridge->mask & BRNF_BRIDGED) ^
            !(info->invert & XT_PHYSDEV_OP_BRIDGED)))
-               return NOMATCH;
+               return false;
 
        if ((info->bitmask & XT_PHYSDEV_OP_ISIN &&
            (!nf_bridge->physindev ^ !!(info->invert & XT_PHYSDEV_OP_ISIN))) ||
            (info->bitmask & XT_PHYSDEV_OP_ISOUT &&
            (!nf_bridge->physoutdev ^ !!(info->invert & XT_PHYSDEV_OP_ISOUT))))
-               return NOMATCH;
+               return false;
 
        if (!(info->bitmask & XT_PHYSDEV_OP_IN))
                goto match_outdev;
        indev = nf_bridge->physindev ? nf_bridge->physindev->name : nulldevname;
-       for (i = 0, ret = 0; i < IFNAMSIZ/sizeof(unsigned int); i++) {
+       for (i = 0, ret = false; i < IFNAMSIZ/sizeof(unsigned int); i++) {
                ret |= (((const unsigned int *)indev)[i]
                        ^ ((const unsigned int *)info->physindev)[i])
                        & ((const unsigned int *)info->in_mask)[i];
        }
 
-       if ((ret == 0) ^ !(info->invert & XT_PHYSDEV_OP_IN))
-               return NOMATCH;
+       if (!ret ^ !(info->invert & XT_PHYSDEV_OP_IN))
+               return false;
 
 match_outdev:
        if (!(info->bitmask & XT_PHYSDEV_OP_OUT))
-               return MATCH;
+               return true;
        outdev = nf_bridge->physoutdev ?
                 nf_bridge->physoutdev->name : nulldevname;
-       for (i = 0, ret = 0; i < IFNAMSIZ/sizeof(unsigned int); i++) {
+       for (i = 0, ret = false; i < IFNAMSIZ/sizeof(unsigned int); i++) {
                ret |= (((const unsigned int *)outdev)[i]
                        ^ ((const unsigned int *)info->physoutdev)[i])
                        & ((const unsigned int *)info->out_mask)[i];
        }
 
-       return (ret != 0) ^ !(info->invert & XT_PHYSDEV_OP_OUT);
+       return ret ^ !(info->invert & XT_PHYSDEV_OP_OUT);
 }
 
 static int