In 135367b "netfilter: xtables: change xt_target.checkentry return type",
the type returned by checkentry was changed from boolean to int, but the
return values where not adjusted.
# arptables -I INPUT -i eth1 --h-length 6 --destination-mac 01:00:5e:00:01:01 -j mangle --mangle-mac-d 00:18:71:68:f2:34
arptables: Input/output error
This broke arptables with the mangle target since it returns true
under success, which is interpreted by xtables as >0, thus
returning EIO.
Signed-off-by: Pablo Neira Ayuso <pablo@xxxxxxxxxxxxx>
---
net/ipv4/netfilter/arpt_mangle.c | 6 +++---
1 files changed, 3 insertions(+), 3 deletions(-)
diff --git a/net/ipv4/netfilter/arpt_mangle.c b/net/ipv4/netfilter/arpt_mangle.c
index b8ddcc4..a5e52a9 100644
--- a/net/ipv4/netfilter/arpt_mangle.c
+++ b/net/ipv4/netfilter/arpt_mangle.c
@@ -60,12 +60,12 @@ static int checkentry(const struct xt_tgchk_param *par)
if (mangle->flags & ~ARPT_MANGLE_MASK ||
!(mangle->flags & ARPT_MANGLE_MASK))
- return false;
+ return -EINVAL;
if (mangle->target != NF_DROP && mangle->target != NF_ACCEPT &&
mangle->target != XT_CONTINUE)
- return false;
- return true;
+ return -EINVAL;
+ return 0;
}
static struct xt_target arpt_mangle_reg __read_mostly = {
--
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