[NET] rules: Share common attribute validation policy

Move the attribute policy for the non-specific attributes into
net/fib_rules.h and include it in the respective protocols.

Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>

include/net/fib_rules.h

@@ -59,6 +59,13 @@ struct fib_rules_ops
 	struct module		*owner;
 };
 
+#define FRA_GENERIC_POLICY \
+	[FRA_IFNAME]	= { .type = NLA_STRING, .len = IFNAMSIZ - 1 }, \
+	[FRA_PRIORITY]	= { .type = NLA_U32 }, \
+	[FRA_FWMARK]	= { .type = NLA_U32 }, \
+	[FRA_FWMASK]	= { .type = NLA_U32 }, \
+	[FRA_TABLE]     = { .type = NLA_U32 }
+
 static inline void fib_rule_get(struct fib_rule *rule)
 {
 	atomic_inc(&rule->refcnt);

net/decnet/dn_rules.c

@@ -108,13 +108,9 @@ errout:
 }
 
 static struct nla_policy dn_fib_rule_policy[FRA_MAX+1] __read_mostly = {
-	[FRA_IFNAME]	= { .type = NLA_STRING, .len = IFNAMSIZ - 1 },
-	[FRA_PRIORITY]	= { .type = NLA_U32 },
+	FRA_GENERIC_POLICY,
 	[FRA_SRC]	= { .type = NLA_U16 },
 	[FRA_DST]	= { .type = NLA_U16 },
-	[FRA_FWMARK]	= { .type = NLA_U32 },
-	[FRA_FWMASK]	= { .type = NLA_U32 },
-	[FRA_TABLE]     = { .type = NLA_U32 },
 };
 
 static int dn_fib_rule_match(struct fib_rule *rule, struct flowi *fl, int flags)

net/ipv4/fib_rules.c

@@ -170,14 +170,10 @@ static struct fib_table *fib_empty_table(void)
 }
 
 static struct nla_policy fib4_rule_policy[FRA_MAX+1] __read_mostly = {
-	[FRA_IFNAME]	= { .type = NLA_STRING, .len = IFNAMSIZ - 1 },
-	[FRA_PRIORITY]	= { .type = NLA_U32 },
+	FRA_GENERIC_POLICY,
 	[FRA_SRC]	= { .type = NLA_U32 },
 	[FRA_DST]	= { .type = NLA_U32 },
-	[FRA_FWMARK]	= { .type = NLA_U32 },
-	[FRA_FWMASK]	= { .type = NLA_U32 },
 	[FRA_FLOW]	= { .type = NLA_U32 },
-	[FRA_TABLE]	= { .type = NLA_U32 },
 };
 
 static int fib4_rule_configure(struct fib_rule *rule, struct sk_buff *skb,

net/ipv6/fib6_rules.c

@@ -130,13 +130,9 @@ static int fib6_rule_match(struct fib_rule *rule, struct flowi *fl, int flags)
 }
 
 static struct nla_policy fib6_rule_policy[FRA_MAX+1] __read_mostly = {
-	[FRA_IFNAME]	= { .type = NLA_STRING, .len = IFNAMSIZ - 1 },
-	[FRA_PRIORITY]	= { .type = NLA_U32 },
+	FRA_GENERIC_POLICY,
 	[FRA_SRC]	= { .len = sizeof(struct in6_addr) },
 	[FRA_DST]	= { .len = sizeof(struct in6_addr) },
-	[FRA_FWMARK]	= { .type = NLA_U32 },
-	[FRA_FWMASK]	= { .type = NLA_U32 },
-	[FRA_TABLE]	= { .type = NLA_U32 },
 };
 
 static int fib6_rule_configure(struct fib_rule *rule, struct sk_buff *skb,