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

Switch the return type of match functions to boolean

Signed-off-by: Jan Engelhardt <jengelh@gmx.de>
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

5 files changed, 25 insertions, 25 deletions

diff --git a/net/ipv4/netfilter/ip_tables.c b/net/ipv4/netfilter/ip_tables.c
index b9c792dd489..7962306df58 100644
--- a/net/ipv4/netfilter/ip_tables.c
+++ b/net/ipv4/netfilter/ip_tables.c
@@ -152,20 +152,20 @@ ip_packet_match(const struct iphdr *ip,
 	return 1;
 }
 
-static inline int
+static inline bool
 ip_checkentry(const struct ipt_ip *ip)
 {
 	if (ip->flags & ~IPT_F_MASK) {
 		duprintf("Unknown flag bits set: %08X\n",
 			 ip->flags & ~IPT_F_MASK);
-		return 0;
+		return false;
 	}
 	if (ip->invflags & ~IPT_INV_MASK) {
 		duprintf("Unknown invflag bits set: %08X\n",
 			 ip->invflags & ~IPT_INV_MASK);
-		return 0;
+		return false;
 	}
-	return 1;
+	return true;
 }
 
 static unsigned int
@@ -2149,7 +2149,7 @@ icmp_match(const struct sk_buff *skb,
 }
 
 /* Called when user tries to insert an entry of this type. */
-static int
+static bool
 icmp_checkentry(const char *tablename,
 	   const void *info,
 	   const struct xt_match *match,
diff --git a/net/ipv4/netfilter/ipt_ah.c b/net/ipv4/netfilter/ipt_ah.c
index 3da39ee92d8..6b5b7c9f739 100644
--- a/net/ipv4/netfilter/ipt_ah.c
+++ b/net/ipv4/netfilter/ipt_ah.c
@@ -70,7 +70,7 @@ match(const struct sk_buff *skb,
 }
 
 /* Called when user tries to insert an entry of this type. */
-static int
+static bool
 checkentry(const char *tablename,
 	   const void *ip_void,
 	   const struct xt_match *match,
@@ -82,9 +82,9 @@ checkentry(const char *tablename,
 	/* Must specify no unknown invflags */
 	if (ahinfo->invflags & ~IPT_AH_INV_MASK) {
 		duprintf("ipt_ah: unknown flags %X\n", ahinfo->invflags);
-		return 0;
+		return false;
 	}
-	return 1;
+	return true;
 }
 
 static struct xt_match ah_match = {
diff --git a/net/ipv4/netfilter/ipt_ecn.c b/net/ipv4/netfilter/ipt_ecn.c
index ba3a17e0f84..ba4f5497add 100644
--- a/net/ipv4/netfilter/ipt_ecn.c
+++ b/net/ipv4/netfilter/ipt_ecn.c
@@ -87,27 +87,27 @@ static bool match(const struct sk_buff *skb,
 	return true;
 }
 
-static int checkentry(const char *tablename, const void *ip_void,
-		      const struct xt_match *match,
-		      void *matchinfo, unsigned int hook_mask)
+static bool checkentry(const char *tablename, const void *ip_void,
+		       const struct xt_match *match,
+		       void *matchinfo, unsigned int hook_mask)
 {
 	const struct ipt_ecn_info *info = matchinfo;
 	const struct ipt_ip *ip = ip_void;
 
 	if (info->operation & IPT_ECN_OP_MATCH_MASK)
-		return 0;
+		return false;
 
 	if (info->invert & IPT_ECN_OP_MATCH_MASK)
-		return 0;
+		return false;
 
 	if (info->operation & (IPT_ECN_OP_MATCH_ECE|IPT_ECN_OP_MATCH_CWR)
 	    && ip->proto != IPPROTO_TCP) {
 		printk(KERN_WARNING "ipt_ecn: can't match TCP bits in rule for"
 		       " non-tcp packets\n");
-		return 0;
+		return false;
 	}
 
-	return 1;
+	return true;
 }
 
 static struct xt_match ecn_match = {
diff --git a/net/ipv4/netfilter/ipt_owner.c b/net/ipv4/netfilter/ipt_owner.c
index 8f441cef550..deea4b8cc05 100644
--- a/net/ipv4/netfilter/ipt_owner.c
+++ b/net/ipv4/netfilter/ipt_owner.c
@@ -51,7 +51,7 @@ match(const struct sk_buff *skb,
 	return true;
 }
 
-static int
+static bool
 checkentry(const char *tablename,
 	   const void *ip,
 	   const struct xt_match *match,
@@ -63,9 +63,9 @@ checkentry(const char *tablename,
 	if (info->match & (IPT_OWNER_PID|IPT_OWNER_SID|IPT_OWNER_COMM)) {
 		printk("ipt_owner: pid, sid and command matching "
 		       "not supported anymore\n");
-		return 0;
+		return false;
 	}
-	return 1;
+	return true;
 }
 
 static struct xt_match owner_match = {
diff --git a/net/ipv4/netfilter/ipt_recent.c b/net/ipv4/netfilter/ipt_recent.c
index 2e513ed9b6e..d632e0e6ef1 100644
--- a/net/ipv4/netfilter/ipt_recent.c
+++ b/net/ipv4/netfilter/ipt_recent.c
@@ -235,7 +235,7 @@ out:
 	return ret;
 }
 
-static int
+static bool
 ipt_recent_checkentry(const char *tablename, const void *ip,
 		      const struct xt_match *match, void *matchinfo,
 		      unsigned int hook_mask)
@@ -243,24 +243,24 @@ ipt_recent_checkentry(const char *tablename, const void *ip,
 	const struct ipt_recent_info *info = matchinfo;
 	struct recent_table *t;
 	unsigned i;
-	int ret = 0;
+	bool ret = false;
 
 	if (hweight8(info->check_set &
 		     (IPT_RECENT_SET | IPT_RECENT_REMOVE |
 		      IPT_RECENT_CHECK | IPT_RECENT_UPDATE)) != 1)
-		return 0;
+		return false;
 	if ((info->check_set & (IPT_RECENT_SET | IPT_RECENT_REMOVE)) &&
 	    (info->seconds || info->hit_count))
-		return 0;
+		return false;
 	if (info->name[0] == '\0' ||
 	    strnlen(info->name, IPT_RECENT_NAME_LEN) == IPT_RECENT_NAME_LEN)
-		return 0;
+		return false;
 
 	mutex_lock(&recent_mutex);
 	t = recent_table_lookup(info->name);
 	if (t != NULL) {
 		t->refcnt++;
-		ret = 1;
+		ret = true;
 		goto out;
 	}
 
@@ -287,7 +287,7 @@ ipt_recent_checkentry(const char *tablename, const void *ip,
 	spin_lock_bh(&recent_lock);
 	list_add_tail(&t->list, &tables);
 	spin_unlock_bh(&recent_lock);
-	ret = 1;
+	ret = true;
 out:
 	mutex_unlock(&recent_mutex);
 	return ret;