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authorDavide Caratti <dcaratti@redhat.com>2018-10-10 22:00:58 +0200
committerDavid S. Miller <davem@davemloft.net>2018-10-15 21:48:44 -0700
commite331473fee3d500bb0d2582a1fe598df3326d8cd (patch)
tree5233db75fb1b9795b27e8cca5c5981a076f8427e /net/sched/sch_api.c
parent58f5bbe331c566f49c9559568f982202a278aa78 (diff)
net/sched: cls_api: add missing validation of netlink attributes
Similarly to what has been done in 8b4c3cdd9dd8 ("net: sched: Add policy validation for tc attributes"), fix classifier code to add validation of TCA_CHAIN and TCA_KIND netlink attributes. tested with: # ./tdc.py -c filter v2: Let sch_api and cls_api share nla_policy they have in common, thanks to David Ahern. v3: Avoid EXPORT_SYMBOL(), as validation of those attributes is not done by TC modules, thanks to Cong Wang. While at it, restore the 'Delete / get qdisc' comment to its orginal position, just above tc_get_qdisc() function prototype. Fixes: 5bc1701881e39 ("net: sched: introduce multichain support for filters") Signed-off-by: Davide Caratti <dcaratti@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/sched/sch_api.c')
-rw-r--r--net/sched/sch_api.c8
1 files changed, 4 insertions, 4 deletions
diff --git a/net/sched/sch_api.c b/net/sched/sch_api.c
index 85e73f48e48f..6684641ea344 100644
--- a/net/sched/sch_api.c
+++ b/net/sched/sch_api.c
@@ -1307,10 +1307,6 @@ check_loop_fn(struct Qdisc *q, unsigned long cl, struct qdisc_walker *w)
return 0;
}
-/*
- * Delete/get qdisc.
- */
-
const struct nla_policy rtm_tca_policy[TCA_MAX + 1] = {
[TCA_KIND] = { .type = NLA_STRING },
[TCA_OPTIONS] = { .type = NLA_NESTED },
@@ -1323,6 +1319,10 @@ const struct nla_policy rtm_tca_policy[TCA_MAX + 1] = {
[TCA_EGRESS_BLOCK] = { .type = NLA_U32 },
};
+/*
+ * Delete/get qdisc.
+ */
+
static int tc_get_qdisc(struct sk_buff *skb, struct nlmsghdr *n,
struct netlink_ext_ack *extack)
{