netfilter 54/62: xtables: print details on size mismatch

Patrick McHardy
2010-02-16T14:56:33Z

commit b402405d71beed8e4df354844353f66b4e18269f
Author: Jan Engelhardt <jengelh@medozas.de>
Date: Thu Jun 25 18:32:12 2009 +0200

netfilter: xtables: print details on size mismatch

Print which revision has been used and which size are which
(kernel/user) for easier debugging.

Signed-off-by: Jan Engelhardt <jengelh@medozas.de>

diff --git a/net/netfilter/x_tables.c b/net/netfilter/x_tables.c
index 255ab06..1250319 100644
--- a/net/netfilter/x_tables.c
+++ b/net/netfilter/x_tables.c
@@ -366,8 +366,10 @@ 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 match: invalid size %u != %u\n",
+ 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);
return -EINVAL;
}
@@ -516,8 +518,10 @@ int xt_check_target(struct xt_tgchk_param *par,
unsigned int size, u_int8_t proto, bool inv_proto)
{
if (XT_ALIGN(par->target->targetsize) != size) {
- pr_err("%s_tables: %s target: invalid size %u != %u\n",
+ 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);
return -EINVAL;
}