From 38e029f14a9702f71d5953246df9f722bca49017 Mon Sep 17 00:00:00 2001 From: Pablo Neira Ayuso Date: Tue, 1 Jul 2014 12:23:12 +0200 Subject: netfilter: nf_tables: set NLM_F_DUMP_INTR if netlink dumping is stale An updater may interfer with the dumping of any of the object lists. Fix this by using a per-net generation counter and use the nl_dump_check_consistent() interface so the NLM_F_DUMP_INTR flag is set to notify userspace that it has to restart the dump since an updater has interfered. This patch also replaces the existing consistency checking code in the rule dumping path since it is broken. Basically, the value that the dump callback returns is not propagated to userspace via netlink_dump_start(). Signed-off-by: Pablo Neira Ayuso --- include/net/netns/nftables.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include/net/netns') diff --git a/include/net/netns/nftables.h b/include/net/netns/nftables.h index 26a394cb91a8..eee608b12cc9 100644 --- a/include/net/netns/nftables.h +++ b/include/net/netns/nftables.h @@ -13,8 +13,8 @@ struct netns_nftables { struct nft_af_info *inet; struct nft_af_info *arp; struct nft_af_info *bridge; + unsigned int base_seq; u8 gencursor; - u8 genctr; }; #endif -- cgit v1.2.3