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netfilter: ctnetlink: revert to dumping mark regardless of event type

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[ Upstream commit 9f7dd42f0d ]

It seems that change was unintentional, we have userspace code that
needs the mark while listening for events like REPLY, DESTROY, etc.
Also include 0-marks in requested dumps, as they were before that fix.

Fixes: 1feeae0715 ("netfilter: ctnetlink: fix compilation warning after data race fixes in ct mark")
Signed-off-by: Ivan Delalande <colona@arista.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Ivan Delalande
2023-03-02 17:48:31 -08:00
committed by Greg Kroah-Hartman
parent 20fd0607ac
commit bef8cf77e2
1 changed files with 7 additions and 7 deletions
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14
net/netfilter/nf_conntrack_netlink.c
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@@ -322,11 +322,12 @@ nla_put_failure:
}
#ifdef CONFIG_NF_CONNTRACK_MARK
static int ctnetlink_dump_mark(struct sk_buff *skb, const struct nf_conn *ct)
static int ctnetlink_dump_mark(struct sk_buff *skb, const struct nf_conn *ct,
bool dump)
{
u32 mark = READ_ONCE(ct->mark);
if (!mark)
if (!mark && !dump)
return 0;
if (nla_put_be32(skb, CTA_MARK, htonl(mark)))
@@ -337,7 +338,7 @@ nla_put_failure:
return -1;
}
#else
#define ctnetlink_dump_mark(a, b) (0)
#define ctnetlink_dump_mark(a, b, c) (0)
#endif
#ifdef CONFIG_NF_CONNTRACK_SECMARK
@@ -542,7 +543,7 @@ static int ctnetlink_dump_extinfo(struct sk_buff *skb,
static int ctnetlink_dump_info(struct sk_buff *skb, struct nf_conn *ct)
{
if (ctnetlink_dump_status(skb, ct) < 0 ||
ctnetlink_dump_mark(skb, ct) < 0 ||
ctnetlink_dump_mark(skb, ct, true) < 0 ||
ctnetlink_dump_secctx(skb, ct) < 0 ||
ctnetlink_dump_id(skb, ct) < 0 ||
ctnetlink_dump_use(skb, ct) < 0 ||
@@ -825,8 +826,7 @@ ctnetlink_conntrack_event(unsigned int events, const struct nf_ct_event *item)
}
#ifdef CONFIG_NF_CONNTRACK_MARK
if (events & (1 << IPCT_MARK) &&
ctnetlink_dump_mark(skb, ct) < 0)
if (ctnetlink_dump_mark(skb, ct, events & (1 << IPCT_MARK)))
goto nla_put_failure;
#endif
nlmsg_end(skb, nlh);
@@ -2759,7 +2759,7 @@ static int __ctnetlink_glue_build(struct sk_buff *skb, struct nf_conn *ct)
goto nla_put_failure;
#ifdef CONFIG_NF_CONNTRACK_MARK
if (ctnetlink_dump_mark(skb, ct) < 0)
if (ctnetlink_dump_mark(skb, ct, true) < 0)
goto nla_put_failure;
#endif
if (ctnetlink_dump_labels(skb, ct) < 0)