From: Quan Tian <tianquan23@gmail.com>
To: netfilter-devel@vger.kernel.org
Cc: pablo@netfilter.org, kadlec@netfilter.org, fw@strlen.de,
Quan Tian <tianquan23@gmail.com>
Subject: [PATCH nf] netfilter: nf_tables: do not reject dormant flag update for table with owner
Date: Sat, 16 Mar 2024 01:01:24 +0800 [thread overview]
Message-ID: <20240315170124.1584-1-tianquan23@gmail.com> (raw)
If a table was owned by a process, its dormant flag couldn't be updated
because the code required the table to be an orphan.
$ nft -i
nft> add table ip test { flags owner ; }
nft> list table ip test
table ip test { # progname nft
flags owner
}
nft> add table ip test { flags owner ; flags dormant ; }
Error: Could not process rule: Operation not supported
add table ip test { flags owner ; flags dormant ; }
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Fixes: 31bf508be656 ("netfilter: nf_tables: Implement table adoption support")
Signed-off-by: Quan Tian <tianquan23@gmail.com>
---
net/netfilter/nf_tables_api.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/net/netfilter/nf_tables_api.c b/net/netfilter/nf_tables_api.c
index e93f905e60b6..f06b09b32d80 100644
--- a/net/netfilter/nf_tables_api.c
+++ b/net/netfilter/nf_tables_api.c
@@ -1219,7 +1219,8 @@ static int nf_tables_updtable(struct nft_ctx *ctx)
if ((nft_table_has_owner(ctx->table) &&
!(flags & NFT_TABLE_F_OWNER)) ||
(flags & NFT_TABLE_F_OWNER &&
- !nft_table_is_orphan(ctx->table)))
+ !(nft_table_has_owner(ctx->table) ||
+ nft_table_is_orphan(ctx->table))))
return -EOPNOTSUPP;
if ((flags ^ ctx->table->flags) & NFT_TABLE_F_PERSIST)
--
2.39.3 (Apple Git-145)
next reply other threads:[~2024-03-15 17:01 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-03-15 17:01 Quan Tian [this message]
2024-03-20 17:19 ` [PATCH nf] netfilter: nf_tables: do not reject dormant flag update for table with owner Pablo Neira Ayuso
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