From: Simon Horman <horms@verge.net.au>
To: Pablo Neira Ayuso <pablo@netfilter.org>
Cc: lvs-devel@vger.kernel.org, netdev@vger.kernel.org,
netfilter-devel@vger.kernel.org,
Wensong Zhang <wensong@linux-vs.org>,
Julian Anastasov <ja@ssi.bg>, Alexey Andriyanov <alan@al-an.info>,
Simon Horman <horms@verge.net.au>
Subject: [PATCH nf] ipvs: fix inability to remove a mixed-family RS
Date: Mon, 9 Feb 2015 14:25:08 +0900 [thread overview]
Message-ID: <1423459508-15517-2-git-send-email-horms@verge.net.au> (raw)
In-Reply-To: <1423459508-15517-1-git-send-email-horms@verge.net.au>
From: Alexey Andriyanov <alan@al-an.info>
The current code prevents any operation with a mixed-family dest
unless IP_VS_CONN_F_TUNNEL flag is set. The problem is that it's impossible
for the client to follow this rule, because ip_vs_genl_parse_dest does
not even read the destination conn_flags when cmd = IPVS_CMD_DEL_DEST
(need_full_dest = 0).
Also, not every client can pass this flag when removing a dest. ipvsadm,
for example, does not support the "-i" command line option together with
the "-d" option.
This change disables any checks for mixed-family on IPVS_CMD_DEL_DEST command.
Signed-off-by: Alexey Andriyanov <alan@al-an.info>
Fixes: bc18d37f676f ("ipvs: Allow heterogeneous pools now that we support them")
Acked-by: Julian Anastasov <ja@ssi.bg>
Signed-off-by: Simon Horman <horms@verge.net.au>
---
net/netfilter/ipvs/ip_vs_ctl.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/net/netfilter/ipvs/ip_vs_ctl.c b/net/netfilter/ipvs/ip_vs_ctl.c
index b8295a4..fdcda8b 100644
--- a/net/netfilter/ipvs/ip_vs_ctl.c
+++ b/net/netfilter/ipvs/ip_vs_ctl.c
@@ -3399,7 +3399,7 @@ static int ip_vs_genl_set_cmd(struct sk_buff *skb, struct genl_info *info)
if (udest.af == 0)
udest.af = svc->af;
- if (udest.af != svc->af) {
+ if (udest.af != svc->af && cmd != IPVS_CMD_DEL_DEST) {
/* The synchronization protocol is incompatible
* with mixed family services
*/
--
2.1.4
next prev parent reply other threads:[~2015-02-09 5:25 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-02-09 5:25 [GIT PULL nf] IPVS Fixes for v3.20 Simon Horman
2015-02-09 5:25 ` Simon Horman [this message]
2015-02-10 5:31 ` Pablo Neira Ayuso
2015-02-10 5:44 ` Simon Horman
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=1423459508-15517-2-git-send-email-horms@verge.net.au \
--to=horms@verge.net.au \
--cc=alan@al-an.info \
--cc=ja@ssi.bg \
--cc=lvs-devel@vger.kernel.org \
--cc=netdev@vger.kernel.org \
--cc=netfilter-devel@vger.kernel.org \
--cc=pablo@netfilter.org \
--cc=wensong@linux-vs.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).