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authorPatrick McHardy <kaber@trash.net>2008-01-23 20:36:30 -0800
committerDavid S. Miller <davem@davemloft.net>2008-01-28 15:11:23 -0800
commit53b2bf3f8a652c9c8e86831f94ae2c5767ea54d7 (patch)
treeeba61efed08a932766a32b0b6a60e766f8b44bcb /net/sched/act_gact.c
parent6fa8c0144b770dac941cf2c15053b6e24f046c8a (diff)
[NET_SCHED]: Use nla_policy for attribute validation in actions
Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/sched/act_gact.c')
-rw-r--r--net/sched/act_gact.c15
1 files changed, 8 insertions, 7 deletions
diff --git a/net/sched/act_gact.c b/net/sched/act_gact.c
index df214d47fc9..422872c4f14 100644
--- a/net/sched/act_gact.c
+++ b/net/sched/act_gact.c
@@ -53,6 +53,11 @@ typedef int (*g_rand)(struct tcf_gact *gact);
static g_rand gact_rand[MAX_RAND]= { NULL, gact_net_rand, gact_determ };
#endif /* CONFIG_GACT_PROB */
+static const struct nla_policy gact_policy[TCA_GACT_MAX + 1] = {
+ [TCA_GACT_PARMS] = { .len = sizeof(struct tc_gact) },
+ [TCA_GACT_PROB] = { .len = sizeof(struct tc_gact_p) },
+};
+
static int tcf_gact_init(struct nlattr *nla, struct nlattr *est,
struct tc_action *a, int ovr, int bind)
{
@@ -66,20 +71,16 @@ static int tcf_gact_init(struct nlattr *nla, struct nlattr *est,
if (nla == NULL)
return -EINVAL;
- err = nla_parse_nested(tb, TCA_GACT_MAX, nla, NULL);
+ err = nla_parse_nested(tb, TCA_GACT_MAX, nla, gact_policy);
if (err < 0)
return err;
- if (tb[TCA_GACT_PARMS] == NULL ||
- nla_len(tb[TCA_GACT_PARMS]) < sizeof(*parm))
+ if (tb[TCA_GACT_PARMS] == NULL)
return -EINVAL;
parm = nla_data(tb[TCA_GACT_PARMS]);
+#ifndef CONFIG_GACT_PROB
if (tb[TCA_GACT_PROB] != NULL)
-#ifdef CONFIG_GACT_PROB
- if (nla_len(tb[TCA_GACT_PROB]) < sizeof(struct tc_gact_p))
- return -EINVAL;
-#else
return -EOPNOTSUPP;
#endif