diff options
| author | Roman Mashak <mrv@mojatatu.com> | 2018-07-02 06:02:02 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2018-07-02 15:44:06 +0200 |
| commit | 9868c0b2eb18470a91d6f0f0df318738a50554e2 (patch) | |
| tree | fe94c5af01d875dbc8db867da772062b191104e7 /net/sched/act_pedit.c | |
| parent | TTY: isdn: Replace strncpy with memcpy (diff) | |
| download | linux-9868c0b2eb18470a91d6f0f0df318738a50554e2.tar.xz linux-9868c0b2eb18470a91d6f0f0df318738a50554e2.zip | |
net sched actions: add extack messages in pedit action
Signed-off-by: Roman Mashak <mrv@mojatatu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/sched/act_pedit.c')
| -rw-r--r-- | net/sched/act_pedit.c | 16 |
1 files changed, 12 insertions, 4 deletions
diff --git a/net/sched/act_pedit.c b/net/sched/act_pedit.c index ab151346d3d4..55bc96b610e8 100644 --- a/net/sched/act_pedit.c +++ b/net/sched/act_pedit.c @@ -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) |