Move the type specifici attribute validation to the core

The type specific attribute validation can be moved to the ipset core.
That way it's done centrally and thus can be eliminated from the individual
set types (suggested by Patrick McHardy).

1 files changed, 17 insertions, 36 deletions

diff --git a/kernel/ip_set_bitmap_ip.c b/kernel/ip_set_bitmap_ip.c
index 19251d6..804dcc2 100644
--- a/kernel/ip_set_bitmap_ip.c
+++ b/kernel/ip_set_bitmap_ip.c
@@ -100,27 +100,14 @@ bitmap_ip_kadt(struct ip_set *set, const struct sk_buff *skb,
 	}
 }
 
-static const struct nla_policy bitmap_ip_adt_policy[IPSET_ATTR_ADT_MAX+1] = {
-	[IPSET_ATTR_IP]		= { .type = NLA_NESTED },
-	[IPSET_ATTR_IP_TO]	= { .type = NLA_NESTED },
-	[IPSET_ATTR_CIDR]	= { .type = NLA_U8 },
-	[IPSET_ATTR_TIMEOUT]	= { .type = NLA_U32 },
-	[IPSET_ATTR_LINENO]	= { .type = NLA_U32 },
-};
-
 static int
-bitmap_ip_uadt(struct ip_set *set, struct nlattr *head, int len,
+bitmap_ip_uadt(struct ip_set *set, struct nlattr *tb[],
 	       enum ipset_adt adt, u32 *lineno, u32 flags)
 {
 	struct bitmap_ip *map = set->data;
-	struct nlattr *tb[IPSET_ATTR_ADT_MAX+1];
 	u32 ip, ip_to, id;
 	int ret = 0;
 
-	if (nla_parse(tb, IPSET_ATTR_ADT_MAX, head, len,
-		      bitmap_ip_adt_policy))
-		return -IPSET_ERR_PROTOCOL;
-
 	if (unlikely(!tb[IPSET_ATTR_IP]))
 		return -IPSET_ERR_PROTOCOL;
 
@@ -354,18 +341,13 @@ bitmap_ip_timeout_kadt(struct ip_set *set, const struct sk_buff *skb,
 }
 
 static int
-bitmap_ip_timeout_uadt(struct ip_set *set, struct nlattr *head, int len,
+bitmap_ip_timeout_uadt(struct ip_set *set, struct nlattr *tb[],
 		       enum ipset_adt adt, u32 *lineno, u32 flags)
 {
 	struct bitmap_ip_timeout *map = set->data;
-	struct nlattr *tb[IPSET_ATTR_ADT_MAX+1];
 	u32 ip, ip_to, id, timeout = map->timeout;
 	int ret = 0;
 
-	if (nla_parse(tb, IPSET_ATTR_ADT_MAX, head, len,
-		      bitmap_ip_adt_policy))
-		return -IPSET_ERR_PROTOCOL;
-
 	if (unlikely(!tb[IPSET_ATTR_IP] ||
 		     !ip_set_optattr_netorder(tb, IPSET_ATTR_TIMEOUT)))
 		return -IPSET_ERR_PROTOCOL;
@@ -571,15 +553,6 @@ bitmap_ip_gc_init(struct ip_set *set)
 
 /* Create bitmap:ip type of sets */
 
-static const struct nla_policy
-bitmap_ip_create_policy[IPSET_ATTR_CREATE_MAX+1] = {
-	[IPSET_ATTR_IP]		= { .type = NLA_NESTED },
-	[IPSET_ATTR_IP_TO]	= { .type = NLA_NESTED },
-	[IPSET_ATTR_CIDR]	= { .type = NLA_U8 },
-	[IPSET_ATTR_NETMASK]	= { .type = NLA_U8  },
-	[IPSET_ATTR_TIMEOUT]	= { .type = NLA_U32 },
-};
-
 static bool
 init_map_ip(struct ip_set *set, struct bitmap_ip *map,
 	    u32 first_ip, u32 last_ip,
@@ -601,18 +574,12 @@ init_map_ip(struct ip_set *set, struct bitmap_ip *map,
 }
 
 static int
-bitmap_ip_create(struct ip_set *set, struct nlattr *head, int len,
-		 u32 flags)
+bitmap_ip_create(struct ip_set *set, struct nlattr *tb[], u32 flags)
 {
-	struct nlattr *tb[IPSET_ATTR_CREATE_MAX+1];
 	u32 first_ip, last_ip, hosts, elements;
 	u8 netmask = 32;
 	int ret;
 
-	if (nla_parse(tb, IPSET_ATTR_CREATE_MAX, head, len,
-		      bitmap_ip_create_policy))
-		return -IPSET_ERR_PROTOCOL;
-
 	if (unlikely(!tb[IPSET_ATTR_IP] ||
 		     !ip_set_optattr_netorder(tb, IPSET_ATTR_TIMEOUT)))
 		return -IPSET_ERR_PROTOCOL;
@@ -721,6 +688,20 @@ static struct ip_set_type bitmap_ip_type __read_mostly = {
 	.family		= AF_INET,
 	.revision	= 0,
 	.create		= bitmap_ip_create,
+	.create_policy	= {
+		[IPSET_ATTR_IP]		= { .type = NLA_NESTED },
+		[IPSET_ATTR_IP_TO]	= { .type = NLA_NESTED },
+		[IPSET_ATTR_CIDR]	= { .type = NLA_U8 },
+		[IPSET_ATTR_NETMASK]	= { .type = NLA_U8  },
+		[IPSET_ATTR_TIMEOUT]	= { .type = NLA_U32 },
+	},
+	.adt_policy	= {
+		[IPSET_ATTR_IP]		= { .type = NLA_NESTED },
+		[IPSET_ATTR_IP_TO]	= { .type = NLA_NESTED },
+		[IPSET_ATTR_CIDR]	= { .type = NLA_U8 },
+		[IPSET_ATTR_TIMEOUT]	= { .type = NLA_U32 },
+		[IPSET_ATTR_LINENO]	= { .type = NLA_U32 },
+	},
 	.me		= THIS_MODULE,
 };