netdev - Re: [ovs-dev] [PATCH net-next v3 1/8] netfilter: Remove IP_CT_NEW_REPLY definition.

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Date:	Mon, 30 Nov 2015 18:46:03 -0800
From:	Jarno Rajahalme <jarno@....org>
To:	Simon Horman <simon.horman@...ronome.com>
Cc:	netdev@...r.kernel.org, dev@...nvswitch.org,
	netfilter-devel@...r.kernel.org
Subject: Re: [ovs-dev] [PATCH net-next v3 1/8] netfilter: Remove IP_CT_NEW_REPLY definition.

> On Nov 30, 2015, at 10:16 AM, Jarno Rajahalme <jarno@....org> wrote:
> 
> 
>> On Nov 25, 2015, at 21:41, Simon Horman <simon.horman@...ronome.com> wrote:
>> 
>>> On Wed, Nov 25, 2015 at 04:08:14PM -0800, Jarno Rajahalme wrote:
>>> Remove the definition of IP_CT_NEW_REPLY from the kernel as it does
>>> not make sense.  This allows the definition of IP_CT_NUMBER to be
>>> simplified as well.
>>> 
>>> Signed-off-by: Jarno Rajahalme <jarno@....org>
>> 
>> I hate to be the bearer of bad news but its not clear
>> to me that this change doesn't break user-space.
>> 
> 
> These should be no change for the userspace, unless __KERNEL__ is defined.
> 

But there are two syntax errors in there when compiling from userspace, as Daniele just told me offline. I’ll respin the series..

  Jarno

> Also, this is a minor clean-up only, so I have no problem dropping this patch, is need be.
> 
>  Jarno
> 
>>> ---
>>> include/uapi/linux/netfilter/nf_conntrack_common.h | 12 +++++++++---
>>> net/openvswitch/conntrack.c                        |  2 --
>>> 2 files changed, 9 insertions(+), 5 deletions(-)
>>> 
>>> diff --git a/include/uapi/linux/netfilter/nf_conntrack_common.h b/include/uapi/linux/netfilter/nf_conntrack_common.h
>>> index 319f471..2f067cf 100644
>>> --- a/include/uapi/linux/netfilter/nf_conntrack_common.h
>>> +++ b/include/uapi/linux/netfilter/nf_conntrack_common.h
>>> @@ -20,9 +20,15 @@ enum ip_conntrack_info {
>>> 
>>>   IP_CT_ESTABLISHED_REPLY = IP_CT_ESTABLISHED + IP_CT_IS_REPLY,
>>>   IP_CT_RELATED_REPLY = IP_CT_RELATED + IP_CT_IS_REPLY,
>>> -    IP_CT_NEW_REPLY = IP_CT_NEW + IP_CT_IS_REPLY,    
>>> -    /* Number of distinct IP_CT types (no NEW in reply dirn). */
>>> -    IP_CT_NUMBER = IP_CT_IS_REPLY * 2 - 1
>>> +    /* No NEW in reply direction. */
>>> +
>>> +    /* Number of distinct IP_CT types. */
>>> +    IP_CT_NUMBER
>>> +
>>> +    /* only for userspace compatibility */
>>> +#ifndef __KERNEL__
>>> +    IP_CT_NEW_REPLY = IP_CT_NUMBER;
>>> +#endif
>>> };
>>> 
>>> #define NF_CT_STATE_INVALID_BIT            (1 << 0)
>>> diff --git a/net/openvswitch/conntrack.c b/net/openvswitch/conntrack.c
>>> index c2cc111..a28a819 100644
>>> --- a/net/openvswitch/conntrack.c
>>> +++ b/net/openvswitch/conntrack.c
>>> @@ -73,7 +73,6 @@ static u8 ovs_ct_get_state(enum ip_conntrack_info ctinfo)
>>>   switch (ctinfo) {
>>>   case IP_CT_ESTABLISHED_REPLY:
>>>   case IP_CT_RELATED_REPLY:
>>> -    case IP_CT_NEW_REPLY:
>>>       ct_state |= OVS_CS_F_REPLY_DIR;
>>>       break;
>>>   default:
>>> @@ -90,7 +89,6 @@ static u8 ovs_ct_get_state(enum ip_conntrack_info ctinfo)
>>>       ct_state |= OVS_CS_F_RELATED;
>>>       break;
>>>   case IP_CT_NEW:
>>> -    case IP_CT_NEW_REPLY:
>>>       ct_state |= OVS_CS_F_NEW;
>>>       break;
>>>   default:
>>> -- 
>>> 2.1.4
>>> 
>>> _______________________________________________
>>> dev mailing list
>>> dev@...nvswitch.org
>>> http://openvswitch.org/mailman/listinfo/dev

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