# nft add table filter
# nft add chain filter c1
# nft rename chain filter c1 c2
Error: Could not process rule: No such file or directory
rename chain filter c1 c2
^^^^^^^^^^^^^^^^^^^^^^^^^^
# nft add chain filter c2
# nft rename chain filter c1 c2
# nft list table filter
table ip filter {
chain c2 {
}
chain c2 {
}
}
Fixes: 664b0f8cd8 ("netfilter: nf_tables: add generation mask to chains")
Signed-off-by: JingPiao Chen <chenjingpiao@xxxxxxxxx>
---
net/netfilter/nf_tables_api.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/net/netfilter/nf_tables_api.c b/net/netfilter/nf_tables_api.c
index 9299271..f98ca8c 100644
--- a/net/netfilter/nf_tables_api.c
+++ b/net/netfilter/nf_tables_api.c
@@ -1487,8 +1487,8 @@ static int nf_tables_updchain(struct nft_ctx *ctx, u8 genmask, u8 policy,
chain2 = nf_tables_chain_lookup(table, nla[NFTA_CHAIN_NAME],
genmask);
- if (IS_ERR(chain2))
- return PTR_ERR(chain2);
+ if (!IS_ERR(chain2))
+ return -EEXIST;
}
if (nla[NFTA_CHAIN_COUNTERS]) {
--
2.7.4
--
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