diff options
| -rw-r--r-- | net/sched/act_vlan.c | 20 | ||||
| -rw-r--r-- | tools/testing/selftests/tc-testing/tc-tests/actions/vlan.json | 25 |
2 files changed, 42 insertions, 3 deletions
diff --git a/net/sched/act_vlan.c b/net/sched/act_vlan.c index 4651ee15e35d..0f40d0a74423 100644 --- a/net/sched/act_vlan.c +++ b/net/sched/act_vlan.c @@ -15,6 +15,7 @@ #include <linux/if_vlan.h> #include <net/netlink.h> #include <net/pkt_sched.h> +#include <net/pkt_cls.h> #include <linux/tc_act/tc_vlan.h> #include <net/tc_act/tc_vlan.h> @@ -109,6 +110,7 @@ static int tcf_vlan_init(struct net *net, struct nlattr *nla, { struct tc_action_net *tn = net_generic(net, vlan_net_id); struct nlattr *tb[TCA_VLAN_MAX + 1]; + struct tcf_chain *goto_ch = NULL; struct tcf_vlan_params *p; struct tc_vlan *parm; struct tcf_vlan *v; @@ -200,12 +202,16 @@ static int tcf_vlan_init(struct net *net, struct nlattr *nla, return -EEXIST; } + err = tcf_action_check_ctrlact(parm->action, tp, &goto_ch, extack); + if (err < 0) + goto release_idr; + v = to_vlan(*a); p = kzalloc(sizeof(*p), GFP_KERNEL); if (!p) { - tcf_idr_release(*a, bind); - return -ENOMEM; + err = -ENOMEM; + goto put_chain; } p->tcfv_action = action; @@ -214,16 +220,24 @@ static int tcf_vlan_init(struct net *net, struct nlattr *nla, p->tcfv_push_proto = push_proto; spin_lock_bh(&v->tcf_lock); - v->tcf_action = parm->action; + goto_ch = tcf_action_set_ctrlact(*a, parm->action, goto_ch); rcu_swap_protected(v->vlan_p, p, lockdep_is_held(&v->tcf_lock)); spin_unlock_bh(&v->tcf_lock); + if (goto_ch) + tcf_chain_put_by_act(goto_ch); if (p) kfree_rcu(p, rcu); if (ret == ACT_P_CREATED) tcf_idr_insert(tn, *a); return ret; +put_chain: + if (goto_ch) + tcf_chain_put_by_act(goto_ch); +release_idr: + tcf_idr_release(*a, bind); + return err; } static void tcf_vlan_cleanup(struct tc_action *a) diff --git a/tools/testing/selftests/tc-testing/tc-tests/actions/vlan.json b/tools/testing/selftests/tc-testing/tc-tests/actions/vlan.json index 69ea09eefffc..cc7c7d758008 100644 --- a/tools/testing/selftests/tc-testing/tc-tests/actions/vlan.json +++ b/tools/testing/selftests/tc-testing/tc-tests/actions/vlan.json @@ -688,5 +688,30 @@ "teardown": [ "$TC actions flush action vlan" ] + }, + { + "id": "e394", + "name": "Replace vlan push action with invalid goto chain control", + "category": [ + "actions", + "vlan" + ], + "setup": [ + [ + "$TC actions flush action vlan", + 0, + 1, + 255 + ], + "$TC actions add action vlan push id 500 pass index 90" + ], + "cmdUnderTest": "$TC actions replace action vlan push id 500 goto chain 42 index 90 cookie c1a0c1a0", + "expExitCode": "255", + "verifyCmd": "$TC actions get action vlan index 90", + "matchPattern": "action order [0-9]+: vlan.*push id 500 protocol 802.1Q priority 0 pass.*index 90 ref", + "matchCount": "1", + "teardown": [ + "$TC actions flush action vlan" + ] } ] |