diff --git a/net/sched/act_gact.c b/net/sched/act_gact.c index b8ad311bd8cc840c2a41d9a20e4dc37d08579106..e540e31069d746106eb82c5ea3c2f99f9438cbf4 100644 --- a/net/sched/act_gact.c +++ b/net/sched/act_gact.c @@ -20,6 +20,7 @@ #include <linux/init.h> #include <net/netlink.h> #include <net/pkt_sched.h> +#include <net/pkt_cls.h> #include <linux/tc_act/tc_gact.h> #include <net/tc_act/tc_gact.h> @@ -61,6 +62,7 @@ static int tcf_gact_init(struct net *net, struct nlattr *nla, { struct tc_action_net *tn = net_generic(net, gact_net_id); struct nlattr *tb[TCA_GACT_MAX + 1]; + struct tcf_chain *goto_ch = NULL; struct tc_gact *parm; struct tcf_gact *gact; int ret = 0; @@ -116,10 +118,13 @@ static int tcf_gact_init(struct net *net, struct nlattr *nla, return err; } + err = tcf_action_check_ctrlact(parm->action, tp, &goto_ch, extack); + if (err < 0) + goto release_idr; gact = to_gact(*a); spin_lock_bh(&gact->tcf_lock); - gact->tcf_action = parm->action; + goto_ch = tcf_action_set_ctrlact(*a, parm->action, goto_ch); #ifdef CONFIG_GACT_PROB if (p_parm) { gact->tcfg_paction = p_parm->paction; @@ -133,9 +138,15 @@ static int tcf_gact_init(struct net *net, struct nlattr *nla, #endif spin_unlock_bh(&gact->tcf_lock); + if (goto_ch) + tcf_chain_put_by_act(goto_ch); + if (ret == ACT_P_CREATED) tcf_idr_insert(tn, *a); return ret; +release_idr: + tcf_idr_release(*a, bind); + return err; } static int tcf_gact_act(struct sk_buff *skb, const struct tc_action *a, diff --git a/tools/testing/selftests/tc-testing/tc-tests/actions/gact.json b/tools/testing/selftests/tc-testing/tc-tests/actions/gact.json index 89189a03ce3d431b817fcbdaef4eb3a89219fcf9..814b7a8a478be8c9283c8d9426b829d00b9350a4 100644 --- a/tools/testing/selftests/tc-testing/tc-tests/actions/gact.json +++ b/tools/testing/selftests/tc-testing/tc-tests/actions/gact.json @@ -560,5 +560,30 @@ "teardown": [ "$TC actions flush action gact" ] + }, + { + "id": "ca89", + "name": "Replace gact action with invalid goto chain control", + "category": [ + "actions", + "gact" + ], + "setup": [ + [ + "$TC actions flush action gact", + 0, + 1, + 255 + ], + "$TC actions add action pass random determ drop 2 index 90" + ], + "cmdUnderTest": "$TC actions replace action goto chain 42 random determ drop 5 index 90 cookie c1a0c1a0", + "expExitCode": "255", + "verifyCmd": "$TC actions list action gact", + "matchPattern": "action order [0-9]*: gact action pass.*random type determ drop val 2.*index 90 ref", + "matchCount": "1", + "teardown": [ + "$TC actions flush action gact" + ] } ]