From: Pablo Neira Ayuso <pablo@netfilter.org>
To: netfilter-devel@vger.kernel.org
Cc: davem@davemloft.net, netdev@vger.kernel.org
Subject: [PATCH 07/19] netfilter: x_tables: use pr ratelimiting in xt core
Date: Tue, 20 Feb 2018 17:38:54 +0100 [thread overview]
Message-ID: <20180220163906.12380-8-pablo@netfilter.org> (raw)
In-Reply-To: <20180220163906.12380-1-pablo@netfilter.org>
From: Florian Westphal <fw@strlen.de>
most messages are converted to info, since they occur in response to
wrong usage.
Size mismatch however is a real error (xtables ABI bug) that should not
occur.
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
---
net/netfilter/x_tables.c | 70 +++++++++++++++++++++++-------------------------
1 file changed, 34 insertions(+), 36 deletions(-)
diff --git a/net/netfilter/x_tables.c b/net/netfilter/x_tables.c
index 97e06a04c0d4..fa1655aff8d3 100644
--- a/net/netfilter/x_tables.c
+++ b/net/netfilter/x_tables.c
@@ -434,36 +434,35 @@ int xt_check_match(struct xt_mtchk_param *par,
* ebt_among is exempt from centralized matchsize checking
* because it uses a dynamic-size data set.
*/
- pr_err("%s_tables: %s.%u match: invalid size "
- "%u (kernel) != (user) %u\n",
- xt_prefix[par->family], par->match->name,
- par->match->revision,
- XT_ALIGN(par->match->matchsize), size);
+ pr_err_ratelimited("%s_tables: %s.%u match: invalid size %u (kernel) != (user) %u\n",
+ xt_prefix[par->family], par->match->name,
+ par->match->revision,
+ XT_ALIGN(par->match->matchsize), size);
return -EINVAL;
}
if (par->match->table != NULL &&
strcmp(par->match->table, par->table) != 0) {
- pr_err("%s_tables: %s match: only valid in %s table, not %s\n",
- xt_prefix[par->family], par->match->name,
- par->match->table, par->table);
+ pr_info_ratelimited("%s_tables: %s match: only valid in %s table, not %s\n",
+ xt_prefix[par->family], par->match->name,
+ par->match->table, par->table);
return -EINVAL;
}
if (par->match->hooks && (par->hook_mask & ~par->match->hooks) != 0) {
char used[64], allow[64];
- pr_err("%s_tables: %s match: used from hooks %s, but only "
- "valid from %s\n",
- xt_prefix[par->family], par->match->name,
- textify_hooks(used, sizeof(used), par->hook_mask,
- par->family),
- textify_hooks(allow, sizeof(allow), par->match->hooks,
- par->family));
+ pr_info_ratelimited("%s_tables: %s match: used from hooks %s, but only valid from %s\n",
+ xt_prefix[par->family], par->match->name,
+ textify_hooks(used, sizeof(used),
+ par->hook_mask, par->family),
+ textify_hooks(allow, sizeof(allow),
+ par->match->hooks,
+ par->family));
return -EINVAL;
}
if (par->match->proto && (par->match->proto != proto || inv_proto)) {
- pr_err("%s_tables: %s match: only valid for protocol %u\n",
- xt_prefix[par->family], par->match->name,
- par->match->proto);
+ pr_info_ratelimited("%s_tables: %s match: only valid for protocol %u\n",
+ xt_prefix[par->family], par->match->name,
+ par->match->proto);
return -EINVAL;
}
if (par->match->checkentry != NULL) {
@@ -814,36 +813,35 @@ int xt_check_target(struct xt_tgchk_param *par,
int ret;
if (XT_ALIGN(par->target->targetsize) != size) {
- pr_err("%s_tables: %s.%u target: invalid size "
- "%u (kernel) != (user) %u\n",
- xt_prefix[par->family], par->target->name,
- par->target->revision,
- XT_ALIGN(par->target->targetsize), size);
+ pr_err_ratelimited("%s_tables: %s.%u target: invalid size %u (kernel) != (user) %u\n",
+ xt_prefix[par->family], par->target->name,
+ par->target->revision,
+ XT_ALIGN(par->target->targetsize), size);
return -EINVAL;
}
if (par->target->table != NULL &&
strcmp(par->target->table, par->table) != 0) {
- pr_err("%s_tables: %s target: only valid in %s table, not %s\n",
- xt_prefix[par->family], par->target->name,
- par->target->table, par->table);
+ pr_info_ratelimited("%s_tables: %s target: only valid in %s table, not %s\n",
+ xt_prefix[par->family], par->target->name,
+ par->target->table, par->table);
return -EINVAL;
}
if (par->target->hooks && (par->hook_mask & ~par->target->hooks) != 0) {
char used[64], allow[64];
- pr_err("%s_tables: %s target: used from hooks %s, but only "
- "usable from %s\n",
- xt_prefix[par->family], par->target->name,
- textify_hooks(used, sizeof(used), par->hook_mask,
- par->family),
- textify_hooks(allow, sizeof(allow), par->target->hooks,
- par->family));
+ pr_info_ratelimited("%s_tables: %s target: used from hooks %s, but only usable from %s\n",
+ xt_prefix[par->family], par->target->name,
+ textify_hooks(used, sizeof(used),
+ par->hook_mask, par->family),
+ textify_hooks(allow, sizeof(allow),
+ par->target->hooks,
+ par->family));
return -EINVAL;
}
if (par->target->proto && (par->target->proto != proto || inv_proto)) {
- pr_err("%s_tables: %s target: only valid for protocol %u\n",
- xt_prefix[par->family], par->target->name,
- par->target->proto);
+ pr_info_ratelimited("%s_tables: %s target: only valid for protocol %u\n",
+ xt_prefix[par->family], par->target->name,
+ par->target->proto);
return -EINVAL;
}
if (par->target->checkentry != NULL) {
--
2.11.0
next prev parent reply other threads:[~2018-02-20 16:39 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-02-20 16:38 [PATCH 00/19] Netfilter fixes for net Pablo Neira Ayuso
2018-02-20 16:38 ` [PATCH 01/19] netfilter: x_tables: remove size check Pablo Neira Ayuso
2018-02-20 16:38 ` [PATCH 02/19] netfilter: ipt_CLUSTERIP: fix a race condition of proc file creation Pablo Neira Ayuso
2018-02-20 16:38 ` [PATCH 03/19] netfilter: drop outermost socket lock in getsockopt() Pablo Neira Ayuso
2018-02-20 16:38 ` [PATCH 04/19] netfilter: add back stackpointer size checks Pablo Neira Ayuso
2018-02-20 16:38 ` [PATCH 05/19] netfilter: ipt_CLUSTERIP: fix a refcount bug in clusterip_config_find_get() Pablo Neira Ayuso
2018-02-20 16:38 ` [PATCH 06/19] netfilter: x_tables: remove pr_info where possible Pablo Neira Ayuso
2018-02-20 16:38 ` Pablo Neira Ayuso [this message]
2018-02-20 16:38 ` [PATCH 08/19] netfilter: xt_CT: use pr ratelimiting Pablo Neira Ayuso
2018-02-20 16:38 ` [PATCH 09/19] netfilter: xt_NFQUEUE: " Pablo Neira Ayuso
2018-02-20 16:38 ` [PATCH 10/19] netfilter: xt_set: " Pablo Neira Ayuso
2018-02-20 16:38 ` [PATCH 11/19] netfilter: bridge: " Pablo Neira Ayuso
2018-02-20 16:38 ` [PATCH 12/19] netfilter: x_tables: rate-limit table mismatch warnings Pablo Neira Ayuso
2018-02-20 16:39 ` [PATCH 13/19] netfilter: x_tables: use pr ratelimiting in matches/targets Pablo Neira Ayuso
2018-02-20 16:39 ` [PATCH 14/19] netfilter: x_tables: use pr ratelimiting in all remaining spots Pablo Neira Ayuso
2018-02-20 16:39 ` [PATCH 15/19] .gitignore: ignore ASN.1 auto generated files Pablo Neira Ayuso
2018-02-20 16:39 ` [PATCH 16/19] netfilter: x_tables: fix missing timer initialization in xt_LED Pablo Neira Ayuso
2018-02-20 16:39 ` [PATCH 17/19] netfilter: nat: cope with negative port range Pablo Neira Ayuso
2018-02-20 16:39 ` [PATCH 18/19] netfilter: xt_hashlimit: fix lock imbalance Pablo Neira Ayuso
2018-02-20 16:39 ` [PATCH 19/19] netfilter: IDLETIMER: be syzkaller friendly Pablo Neira Ayuso
2018-02-21 19:56 ` [PATCH 00/19] Netfilter fixes for net David Miller
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20180220163906.12380-8-pablo@netfilter.org \
--to=pablo@netfilter.org \
--cc=davem@davemloft.net \
--cc=netdev@vger.kernel.org \
--cc=netfilter-devel@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).