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[NET_SCHED]: Use nla_policy for attribute validation in actions

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Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Patrick McHardy
2008-01-23 20:36:30 -08:00
committed by David S. Miller
parent 6fa8c0144b
commit 53b2bf3f8a
7 changed files with 51 additions and 33 deletions
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15
net/sched/act_gact.c
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@@ -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