From: Pablo Neira Ayuso <pablo@netfilter.org>
To: Gao feng <gaofeng@cn.fujitsu.com>
Cc: netfilter-devel@vger.kernel.org, netdev@vger.kernel.org,
serge.hallyn@canonical.com, ebiederm@xmission.com,
dlezcano@fr.ibm.com
Subject: Re: [PATCH 03/17] netfilter: add namespace support for l3proto
Date: Thu, 24 May 2012 12:04:12 +0200 [thread overview]
Message-ID: <20120524100412.GE13091@1984> (raw)
In-Reply-To: <4FBD95AA.8070301@cn.fujitsu.com>
On Thu, May 24, 2012 at 09:58:02AM +0800, Gao feng wrote:
> 于 2012年05月23日 18:29, Pablo Neira Ayuso 写道:
> > On Mon, May 14, 2012 at 04:52:13PM +0800, Gao feng wrote:
[...]
> >> diff --git a/net/netfilter/nf_conntrack_proto.c b/net/netfilter/nf_conntrack_proto.c
> >> index 6d68727..7ee6653 100644
> >> --- a/net/netfilter/nf_conntrack_proto.c
> >> +++ b/net/netfilter/nf_conntrack_proto.c
> >> @@ -170,85 +170,116 @@ static int kill_l4proto(struct nf_conn *i, void *data)
> >> nf_ct_l3num(i) == l4proto->l3proto;
> >> }
> >>
> >> -static int nf_ct_l3proto_register_sysctl(struct nf_conntrack_l3proto *l3proto)
> >> +static struct nf_ip_net *nf_ct_l3proto_net(struct net *net,
> >> + struct nf_conntrack_l3proto *l3proto)
> >> +{
> >> + if (l3proto->l3proto == PF_INET)
> >> + return &net->ct.proto;
> >> + else
> >> + return NULL;
> >> +}
> >> +
> >> +static int nf_ct_l3proto_register_sysctl(struct net *net,
> >> + struct nf_conntrack_l3proto *l3proto)
> >> {
> >> int err = 0;
> >> + struct nf_ip_net *in = nf_ct_l3proto_net(net, l3proto);
> >>
> >> -#ifdef CONFIG_SYSCTL
> >> - if (l3proto->ctl_table != NULL) {
> >> - err = nf_ct_register_sysctl(&init_net,
> >> - &l3proto->ctl_table_header,
> >> + if (in == NULL)
> >> + return 0;
> >
> > Under what circunstances that in be NULL?
>
> Because l3proto_ipv6 doesn't need sysctl,so l3proto_ipv6's nf_ip_net is NULL,
> please see function nf_ct_l3proto_net above.
Then, please add a comment there to explain that some per-net protocol
information may missing since no sysctl is supported.
next prev parent reply other threads:[~2012-05-24 10:04 UTC|newest]
Thread overview: 52+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-05-14 8:52 [PATCH v3 00/17] netfilter: add namespace support for netfilter protos Gao feng
2012-05-14 8:52 ` [PATCH 01/17] netfilter: add struct nf_proto_net for register l4proto sysctl Gao feng
2012-05-23 10:12 ` Pablo Neira Ayuso
2012-05-24 1:35 ` Gao feng
2012-05-24 9:58 ` Pablo Neira Ayuso
2012-05-24 10:54 ` Gao feng
2012-05-24 14:38 ` Pablo Neira Ayuso
2012-05-25 1:05 ` Gao feng
2012-05-25 2:54 ` Pablo Neira Ayuso
2012-05-25 6:02 ` Gao feng
2012-05-26 2:28 ` Gao feng
2012-05-28 9:53 ` Pablo Neira Ayuso
2012-05-14 8:52 ` [PATCH 02/17] netfilter: add namespace support for l4proto Gao feng
2012-05-23 10:25 ` Pablo Neira Ayuso
2012-05-24 1:52 ` Gao feng
2012-05-24 10:00 ` Pablo Neira Ayuso
2012-05-14 8:52 ` [PATCH 03/17] netfilter: add namespace support for l3proto Gao feng
2012-05-23 10:29 ` Pablo Neira Ayuso
2012-05-24 1:58 ` Gao feng
2012-05-24 10:04 ` Pablo Neira Ayuso [this message]
2012-05-24 10:57 ` Gao feng
2012-05-14 8:52 ` [PATCH 04/17] netfilter: add namespace support for l4proto_generic Gao feng
2012-05-23 10:32 ` Pablo Neira Ayuso
2012-05-24 1:13 ` Gao feng
2012-05-24 9:52 ` Pablo Neira Ayuso
2012-05-24 11:07 ` Gao feng
2012-05-24 14:40 ` Pablo Neira Ayuso
2012-05-26 2:36 ` Gao feng
2012-05-28 9:54 ` Pablo Neira Ayuso
2012-05-14 8:52 ` [PATCH 05/17] netfilter: add namespace support for l4proto_tcp Gao feng
2012-05-25 3:00 ` Pablo Neira Ayuso
2012-05-25 6:05 ` Gao feng
2012-05-14 8:52 ` [PATCH 06/17] netfilter: add namespace support for l4proto_udp Gao feng
2012-05-14 8:52 ` [PATCH 07/17] netfilter: add namespace support for l4proto_icmp Gao feng
2012-05-14 8:52 ` [PATCH 08/17] netfilter: add namespace support for l4proto_icmpv6 Gao feng
2012-05-14 8:52 ` [PATCH 09/17] netfilter: add namespace support for l3proto_ipv4 Gao feng
2012-05-14 8:52 ` [PATCH 10/17] netfilter: add namespace support for l3proto_ipv6 Gao feng
2012-05-14 8:52 ` [PATCH 11/17] netfilter: add namespace support for l4proto_sctp Gao feng
2012-05-14 8:52 ` [PATCH 12/17] netfilter: add namespace support for l4proto_udplite Gao feng
2012-05-14 8:52 ` [PATCH 13/17] netfilter: adjust l4proto_dccp to the nf_conntrack_l4proto_register Gao feng
2012-05-14 8:52 ` [PATCH 14/17] netfilter: adjust l4proto_gre4 " Gao feng
2012-05-14 8:52 ` [PATCH 15/17] netfilter: cleanup sysctl for l4proto and l3proto Gao feng
2012-05-23 10:38 ` Pablo Neira Ayuso
2012-05-24 0:59 ` Gao feng
2012-05-24 9:56 ` Pablo Neira Ayuso
2012-05-14 8:52 ` [PATCH 16/17] netfilter: add namespace support for cttimeout Gao feng
2012-05-23 10:41 ` Pablo Neira Ayuso
2012-05-24 1:04 ` Gao feng
2012-05-14 8:52 ` [PATCH 17/17] netfilter: cttimeout use pernet data of l4proto Gao feng
2012-05-21 8:52 ` [PATCH v3 00/17] netfilter: add namespace support for netfilter protos Gao feng
2012-05-23 10:42 ` Pablo Neira Ayuso
-- strict thread matches above, loose matches on Subject: below --
2012-04-27 9:37 [PATCH v2 " Gao feng
2012-04-27 9:37 ` [PATCH 03/17] netfilter: add namespace support for l3proto Gao feng
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=20120524100412.GE13091@1984 \
--to=pablo@netfilter.org \
--cc=dlezcano@fr.ibm.com \
--cc=ebiederm@xmission.com \
--cc=gaofeng@cn.fujitsu.com \
--cc=netdev@vger.kernel.org \
--cc=netfilter-devel@vger.kernel.org \
--cc=serge.hallyn@canonical.com \
/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 an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.