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Diffstat (limited to 'net/sched/act_mpls.c')
-rw-r--r--net/sched/act_mpls.c66
1 files changed, 37 insertions, 29 deletions
diff --git a/net/sched/act_mpls.c b/net/sched/act_mpls.c
index 6b26bdb999d7..809f7928a1be 100644
--- a/net/sched/act_mpls.c
+++ b/net/sched/act_mpls.c
@@ -190,40 +190,67 @@ static int tcf_mpls_init(struct net *net, struct nlattr *nla,
parm = nla_data(tb[TCA_MPLS_PARMS]);
index = parm->index;
+ err = tcf_idr_check_alloc(tn, &index, a, bind);
+ if (err < 0)
+ return err;
+ exists = err;
+ if (exists && bind)
+ return 0;
+
+ if (!exists) {
+ ret = tcf_idr_create(tn, index, est, a, &act_mpls_ops, bind,
+ true, flags);
+ if (ret) {
+ tcf_idr_cleanup(tn, index);
+ return ret;
+ }
+
+ ret = ACT_P_CREATED;
+ } else if (!(flags & TCA_ACT_FLAGS_REPLACE)) {
+ tcf_idr_release(*a, bind);
+ return -EEXIST;
+ }
+
/* Verify parameters against action type. */
switch (parm->m_action) {
case TCA_MPLS_ACT_POP:
if (!tb[TCA_MPLS_PROTO]) {
NL_SET_ERR_MSG_MOD(extack, "Protocol must be set for MPLS pop");
- return -EINVAL;
+ err = -EINVAL;
+ goto release_idr;
}
if (!eth_proto_is_802_3(nla_get_be16(tb[TCA_MPLS_PROTO]))) {
NL_SET_ERR_MSG_MOD(extack, "Invalid protocol type for MPLS pop");
- return -EINVAL;
+ err = -EINVAL;
+ goto release_idr;
}
if (tb[TCA_MPLS_LABEL] || tb[TCA_MPLS_TTL] || tb[TCA_MPLS_TC] ||
tb[TCA_MPLS_BOS]) {
NL_SET_ERR_MSG_MOD(extack, "Label, TTL, TC or BOS cannot be used with MPLS pop");
- return -EINVAL;
+ err = -EINVAL;
+ goto release_idr;
}
break;
case TCA_MPLS_ACT_DEC_TTL:
if (tb[TCA_MPLS_PROTO] || tb[TCA_MPLS_LABEL] ||
tb[TCA_MPLS_TTL] || tb[TCA_MPLS_TC] || tb[TCA_MPLS_BOS]) {
NL_SET_ERR_MSG_MOD(extack, "Label, TTL, TC, BOS or protocol cannot be used with MPLS dec_ttl");
- return -EINVAL;
+ err = -EINVAL;
+ goto release_idr;
}
break;
case TCA_MPLS_ACT_PUSH:
case TCA_MPLS_ACT_MAC_PUSH:
if (!tb[TCA_MPLS_LABEL]) {
NL_SET_ERR_MSG_MOD(extack, "Label is required for MPLS push");
- return -EINVAL;
+ err = -EINVAL;
+ goto release_idr;
}
if (tb[TCA_MPLS_PROTO] &&
!eth_p_mpls(nla_get_be16(tb[TCA_MPLS_PROTO]))) {
NL_SET_ERR_MSG_MOD(extack, "Protocol must be an MPLS type for MPLS push");
- return -EPROTONOSUPPORT;
+ err = -EPROTONOSUPPORT;
+ goto release_idr;
}
/* Push needs a TTL - if not specified, set a default value. */
if (!tb[TCA_MPLS_TTL]) {
@@ -238,33 +265,14 @@ static int tcf_mpls_init(struct net *net, struct nlattr *nla,
case TCA_MPLS_ACT_MODIFY:
if (tb[TCA_MPLS_PROTO]) {
NL_SET_ERR_MSG_MOD(extack, "Protocol cannot be used with MPLS modify");
- return -EINVAL;
+ err = -EINVAL;
+ goto release_idr;
}
break;
default:
NL_SET_ERR_MSG_MOD(extack, "Unknown MPLS action");
- return -EINVAL;
- }
-
- err = tcf_idr_check_alloc(tn, &index, a, bind);
- if (err < 0)
- return err;
- exists = err;
- if (exists && bind)
- return 0;
-
- if (!exists) {
- ret = tcf_idr_create(tn, index, est, a,
- &act_mpls_ops, bind, true, flags);
- if (ret) {
- tcf_idr_cleanup(tn, index);
- return ret;
- }
-
- ret = ACT_P_CREATED;
- } else if (!(flags & TCA_ACT_FLAGS_REPLACE)) {
- tcf_idr_release(*a, bind);
- return -EEXIST;
+ err = -EINVAL;
+ goto release_idr;
}
err = tcf_action_check_ctrlact(parm->action, tp, &goto_ch, extack);