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| author | David S. Miller <davem@davemloft.net> | 2012-04-01 20:50:45 -0400 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2012-04-02 04:33:44 -0400 |
| commit | 61849dda1dd4ee286521fdfde388dcfc1d891bad (patch) | |
| tree | 874e485edd5d095ed75618b45dc8042f86618ffa /net/8021q | |
| parent | 2eb812e6501597e8b4bc4fdef2db8158c1a3afb6 (diff) | |
| download | linux-stable-61849dda1dd4ee286521fdfde388dcfc1d891bad.tar.gz linux-stable-61849dda1dd4ee286521fdfde388dcfc1d891bad.tar.bz2 linux-stable-61849dda1dd4ee286521fdfde388dcfc1d891bad.zip | |
vlan: Stop using NLA_PUT*().
These macros contain a hidden goto, and are thus extremely error
prone and make code hard to audit.
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/8021q')
| -rw-r--r-- | net/8021q/vlan_netlink.c | 16 |
1 files changed, 10 insertions, 6 deletions
diff --git a/net/8021q/vlan_netlink.c b/net/8021q/vlan_netlink.c index 50711368ad6a..708c80ea1874 100644 --- a/net/8021q/vlan_netlink.c +++ b/net/8021q/vlan_netlink.c @@ -166,11 +166,13 @@ static int vlan_fill_info(struct sk_buff *skb, const struct net_device *dev) struct nlattr *nest; unsigned int i; - NLA_PUT_U16(skb, IFLA_VLAN_ID, vlan_dev_priv(dev)->vlan_id); + if (nla_put_u16(skb, IFLA_VLAN_ID, vlan_dev_priv(dev)->vlan_id)) + goto nla_put_failure; if (vlan->flags) { f.flags = vlan->flags; f.mask = ~0; - NLA_PUT(skb, IFLA_VLAN_FLAGS, sizeof(f), &f); + if (nla_put(skb, IFLA_VLAN_FLAGS, sizeof(f), &f)) + goto nla_put_failure; } if (vlan->nr_ingress_mappings) { nest = nla_nest_start(skb, IFLA_VLAN_INGRESS_QOS); @@ -183,8 +185,9 @@ static int vlan_fill_info(struct sk_buff *skb, const struct net_device *dev) m.from = i; m.to = vlan->ingress_priority_map[i]; - NLA_PUT(skb, IFLA_VLAN_QOS_MAPPING, - sizeof(m), &m); + if (nla_put(skb, IFLA_VLAN_QOS_MAPPING, + sizeof(m), &m)) + goto nla_put_failure; } nla_nest_end(skb, nest); } @@ -202,8 +205,9 @@ static int vlan_fill_info(struct sk_buff *skb, const struct net_device *dev) m.from = pm->priority; m.to = (pm->vlan_qos >> 13) & 0x7; - NLA_PUT(skb, IFLA_VLAN_QOS_MAPPING, - sizeof(m), &m); + if (nla_put(skb, IFLA_VLAN_QOS_MAPPING, + sizeof(m), &m)) + goto nla_put_failure; } } nla_nest_end(skb, nest); |