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[net,2/3] netfilter: nft_dynset: add timeout extension to template

Message ID 20210127132512.5472-3-pablo@netfilter.org (mailing list archive)
State Accepted
Commit 0c5b7a501e7400869ee905b4f7af3d6717802bcb
Delegated to: Netdev Maintainers
Headers show
Series [net,1/3] netfilter: nft_dynset: honor stateful expressions in set definition | expand

Checks

Context Check Description
netdev/cover_letter success Pull request
netdev/fixes_present success Link
netdev/patch_count success Link
netdev/tree_selection success Clearly marked for net
netdev/subject_prefix success Link
netdev/cc_maintainers warning 4 maintainers not CCed: kaber@trash.net kadlec@netfilter.org fw@strlen.de coreteam@netfilter.org
netdev/source_inline success Was 0 now: 0
netdev/verify_signedoff success Link
netdev/module_param success Was 0 now: 0
netdev/build_32bit success Errors and warnings before: 0 this patch: 0
netdev/kdoc success Errors and warnings before: 0 this patch: 0
netdev/verify_fixes success Link
netdev/checkpatch success total: 0 errors, 0 warnings, 0 checks, 11 lines checked
netdev/build_allmodconfig_warn success Errors and warnings before: 0 this patch: 0
netdev/header_inline success Link
netdev/stable success Stable not CCed

Commit Message

Pablo Neira Ayuso Jan. 27, 2021, 1:25 p.m. UTC
Otherwise, the newly create element shows no timeout when listing the
ruleset. If the set definition does not specify a default timeout, then
the set element only shows the expiration time, but not the timeout.
This is a problem when restoring a stateful ruleset listing since it
skips the timeout policy entirely.

Fixes: 22fe54d5fefc ("netfilter: nf_tables: add support for dynamic set updates")
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
---
 net/netfilter/nft_dynset.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)
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Patch

diff --git a/net/netfilter/nft_dynset.c b/net/netfilter/nft_dynset.c
index 86204740f6c7..218c09e4fddd 100644
--- a/net/netfilter/nft_dynset.c
+++ b/net/netfilter/nft_dynset.c
@@ -312,8 +312,10 @@  static int nft_dynset_init(const struct nft_ctx *ctx,
 		nft_dynset_ext_add_expr(priv);
 
 	if (set->flags & NFT_SET_TIMEOUT) {
-		if (timeout || set->timeout)
+		if (timeout || set->timeout) {
+			nft_set_ext_add(&priv->tmpl, NFT_SET_EXT_TIMEOUT);
 			nft_set_ext_add(&priv->tmpl, NFT_SET_EXT_EXPIRATION);
+		}
 	}
 
 	priv->timeout = timeout;