iptables/0032-nft-Fix-selective-chain-compatibility-checks.patch
Phil Sutter 1c8d6d0d32 iptables-1.8.5-1.el8
- Rebase to version 1.8.5 plus upstream-indicated fixes
- Fix for duplicate files in RPM due to imprecise globbing
- Drop bootstrap code again

Resolves: rhbz#2211063
2023-05-30 14:47:41 +02:00

42 lines
1.3 KiB
Diff

From 06bf588263f81b0d254d49b584b26445a788638d Mon Sep 17 00:00:00 2001
From: Phil Sutter <phil@nwl.cc>
Date: Wed, 23 Sep 2020 19:13:45 +0200
Subject: [PATCH] nft: Fix selective chain compatibility checks
Since commit 80251bc2a56ed ("nft: remove cache build calls"), 'chain'
parameter passed to nft_chain_list_get() is no longer effective.
Before, it was used to fetch only that single chain from kernel when
populating the cache. So the returned list of chains for which
compatibility checks are done would contain only that single chain.
Re-establish the single chain compat checking by introducing a dedicated
code path to nft_is_chain_compatible() doing so.
Fixes: 80251bc2a56ed ("nft: remove cache build calls")
Signed-off-by: Phil Sutter <phil@nwl.cc>
(cherry picked from commit 694612adf87fb614f16a2b678f32745d5c9d7876)
---
iptables/nft.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/iptables/nft.c b/iptables/nft.c
index bdf252198f155..7f87d46dcc44c 100644
--- a/iptables/nft.c
+++ b/iptables/nft.c
@@ -3575,6 +3575,12 @@ bool nft_is_table_compatible(struct nft_handle *h,
{
struct nftnl_chain_list *clist;
+ if (chain) {
+ struct nftnl_chain *c = nft_chain_find(h, table, chain);
+
+ return c && !nft_is_chain_compatible(c, h);
+ }
+
clist = nft_chain_list_get(h, table, chain);
if (clist == NULL)
return false;
--
2.40.0