[NETLINK]: Make use of NLA_STRING/NLA_NUL_STRING attribute validation
Converts existing NLA_STRING attributes to use the new
validation features, saving a couple of temporary buffers.
Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/core/fib_rules.c b/net/core/fib_rules.c
index 7b2e9bb..a99d87d 100644
--- a/net/core/fib_rules.c
+++ b/net/core/fib_rules.c
@@ -161,9 +161,6 @@
if (err < 0)
goto errout;
- if (tb[FRA_IFNAME] && nla_len(tb[FRA_IFNAME]) > IFNAMSIZ)
- goto errout;
-
rule = kzalloc(ops->rule_size, GFP_KERNEL);
if (rule == NULL) {
err = -ENOMEM;
@@ -177,10 +174,7 @@
struct net_device *dev;
rule->ifindex = -1;
- if (nla_strlcpy(rule->ifname, tb[FRA_IFNAME],
- IFNAMSIZ) >= IFNAMSIZ)
- goto errout_free;
-
+ nla_strlcpy(rule->ifname, tb[FRA_IFNAME], IFNAMSIZ);
dev = __dev_get_by_name(rule->ifname);
if (dev)
rule->ifindex = dev->ifindex;