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net sched actions: add extack messages in pedit action

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Signed-off-by: Roman Mashak <mrv@mojatatu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Roman Mashak 2018-07-02 00:02:02 -04:00 committed by David S. Miller
parent 414372f633
commit 9868c0b2eb
1 changed files with 12 additions and 4 deletions
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16
net/sched/act_pedit.c
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@ -144,8 +144,10 @@ static int tcf_pedit_init(struct net *net, struct nlattr *nla,
int ret = 0, err;
int ksize;
if (!nla)
if (!nla) {
NL_SET_ERR_MSG_MOD(extack, "Pedit requires attributes to be passed");
return -EINVAL;
}
err = nla_parse_nested(tb, TCA_PEDIT_MAX, nla, pedit_policy, NULL);
if (err < 0)
@ -154,21 +156,27 @@ static int tcf_pedit_init(struct net *net, struct nlattr *nla,
pattr = tb[TCA_PEDIT_PARMS];
if (!pattr)
pattr = tb[TCA_PEDIT_PARMS_EX];
if (!pattr)
if (!pattr) {
NL_SET_ERR_MSG_MOD(extack, "Missing required TCA_PEDIT_PARMS or TCA_PEDIT_PARMS_EX pedit attribute");
return -EINVAL;
}
parm = nla_data(pattr);
ksize = parm->nkeys * sizeof(struct tc_pedit_key);
if (nla_len(pattr) < sizeof(*parm) + ksize)
if (nla_len(pattr) < sizeof(*parm) + ksize) {
NL_SET_ERR_MSG_ATTR(extack, pattr, "Length of TCA_PEDIT_PARMS or TCA_PEDIT_PARMS_EX pedit attribute is invalid");
return -EINVAL;
}
keys_ex = tcf_pedit_keys_ex_parse(tb[TCA_PEDIT_KEYS_EX], parm->nkeys);
if (IS_ERR(keys_ex))
return PTR_ERR(keys_ex);
if (!tcf_idr_check(tn, parm->index, a, bind)) {
if (!parm->nkeys)
if (!parm->nkeys) {
NL_SET_ERR_MSG_MOD(extack, "Pedit requires keys to be passed");
return -EINVAL;
}
ret = tcf_idr_create(tn, parm->index, est, a,
&act_pedit_ops, bind, false);
if (ret)