netfilter: nf_tables: accept QUEUE/DROP verdict parameters
Allow userspace to specify the queue number or the errno code for QUEUE
and DROP verdicts.
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
diff --git a/net/netfilter/nf_tables_api.c b/net/netfilter/nf_tables_api.c
index 4b7e14d..0b56340 100644
--- a/net/netfilter/nf_tables_api.c
+++ b/net/netfilter/nf_tables_api.c
@@ -3174,9 +3174,16 @@
data->verdict = ntohl(nla_get_be32(tb[NFTA_VERDICT_CODE]));
switch (data->verdict) {
- case NF_ACCEPT:
- case NF_DROP:
- case NF_QUEUE:
+ default:
+ switch (data->verdict & NF_VERDICT_MASK) {
+ case NF_ACCEPT:
+ case NF_DROP:
+ case NF_QUEUE:
+ break;
+ default:
+ return -EINVAL;
+ }
+ /* fall through */
case NFT_CONTINUE:
case NFT_BREAK:
case NFT_RETURN:
@@ -3197,8 +3204,6 @@
data->chain = chain;
desc->len = sizeof(data);
break;
- default:
- return -EINVAL;
}
desc->type = NFT_DATA_VERDICT;