From: David Ahern <dsahern@gmail.com>
To: Johannes Berg <johannes@sipsolutions.net>, netdev@vger.kernel.org
Cc: Johannes Berg <johannes.berg@intel.com>
Subject: Re: [RFC 2/5] netlink: set extack error message in nla_validate()
Date: Tue, 18 Sep 2018 10:18:05 -0700 [thread overview]
Message-ID: <f21246a8-6c0a-e99d-96fb-f6e549f78563@gmail.com> (raw)
In-Reply-To: <20180918131212.20266-2-johannes@sipsolutions.net>
On 9/18/18 6:12 AM, Johannes Berg wrote:
> diff --git a/lib/nlattr.c b/lib/nlattr.c
> index 120ad569e13d..efbd6c1aff29 100644
> --- a/lib/nlattr.c
> +++ b/lib/nlattr.c
> @@ -181,9 +181,13 @@ int nla_validate(const struct nlattr *head, int len, int maxtype,
> int rem;
>
> nla_for_each_attr(nla, head, len, rem) {
> - int err = validate_nla(nla, maxtype, policy, NULL);
> + static const char _msg[] = "Attribute failed policy validation";
> + const char *msg = _msg;
> + int err = validate_nla(nla, maxtype, policy, &msg);
>
> if (err < 0) {
> + if (extack)
> + extack->_msg = msg;
> NL_SET_BAD_ATTR(extack, nla);
> return err;
> }
>
I take it this set is on top of another set - the NLA_REJECT?
next prev parent reply other threads:[~2018-09-18 22:51 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-09-18 13:12 [RFC 1/5] netlink: remove NLA_NESTED_COMPAT Johannes Berg
2018-09-18 13:12 ` [RFC 2/5] netlink: set extack error message in nla_validate() Johannes Berg
2018-09-18 17:18 ` David Ahern [this message]
2018-09-18 17:36 ` Johannes Berg
2018-09-18 13:12 ` [RFC 3/5] netlink: combine validate/parse functions Johannes Berg
2018-09-18 13:12 ` [RFC 4/5] netlink: prepare validate extack setting for recursion Johannes Berg
2018-09-19 3:37 ` Marcelo Ricardo Leitner
2018-09-19 9:25 ` Johannes Berg
2018-09-19 9:44 ` Jiri Benc
2018-09-19 18:46 ` Marcelo Ricardo Leitner
2018-09-19 19:19 ` Johannes Berg
2018-09-19 21:10 ` Marcelo Ricardo Leitner
2018-09-20 8:14 ` Johannes Berg
2018-09-20 17:48 ` Marcelo Ricardo Leitner
2018-09-19 9:10 ` Jiri Benc
2018-09-19 9:15 ` Johannes Berg
2018-09-19 9:28 ` Jiri Benc
2018-09-19 9:44 ` Johannes Berg
2018-09-18 13:12 ` [RFC 5/5] netlink: allow NLA_NESTED to specify nested policy to validate Johannes Berg
2018-09-18 17:18 ` [RFC 1/5] netlink: remove NLA_NESTED_COMPAT David Ahern
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