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Re: [PATCH v3 0/3] selftests: netfilter: introduce test cases for ipvs

To: Duncan Roe <duncan_roe@xxxxxxxxxxxxxxx>
Subject: Re: [PATCH v3 0/3] selftests: netfilter: introduce test cases for ipvs
Cc: Julian Anastasov <ja@xxxxxx>, Shuah Khan <shuah@xxxxxxxxxx>, Pablo Neira Ayuso <pablo@xxxxxxxxxxxxx>, "David S. Miller" <davem@xxxxxxxxxxxxx>, Simon Horman <horms@xxxxxxxxxxxx>, linux-kernel@xxxxxxxxxxxxxxx, linux-kselftest@xxxxxxxxxxxxxxx, lvs-devel@xxxxxxxxxxxxxxx, netfilter-devel@xxxxxxxxxxxxxxx
From: Haishuang Yan <yanhaishuang@xxxxxxxxxxxxxxxxxxxx>
Date: Sat, 5 Oct 2019 09:05:37 +0800
> On 2019年10月4日, at 下午7:47, Duncan Roe <duncan_roe@xxxxxxxxxxxxxxx> wrote:
> 
> On Thu, Oct 03, 2019 at 10:41:06PM +0800, Haishuang Yan wrote:
>> 
>> 
>>> On 2019??10??2??, at ????9:27, Duncan Roe <duncan_roe@xxxxxxxxxxxxxxx> 
>>> wrote:
>>> 
>>> On Tue, Oct 01, 2019 at 09:34:13PM +0300, Julian Anastasov wrote:
>>>> 
>>>>    Hello,
>>>> 
>>>> On Tue, 1 Oct 2019, Haishuang Yan wrote:
>>>> 
>>>>> This series patch include test cases for ipvs.
>>>>> 
>>>>> The test topology is who as below:
>>>>> +--------------------------------------------------------------+
>>>>> |                      |                                       |
>>>>> |         ns0          |         ns1                           |
>>>>> |      -----------     |     -----------    -----------        |
>>>>> |      | veth01  | --------- | veth10  |    | veth12  |        |
>>>>> |      -----------    peer   -----------    -----------        |
>>>>> |           |          |                        |              |
>>>>> |      -----------     |                        |              |
>>>>> |      |  br0    |     |-----------------  peer |--------------|
>>>>> |      -----------     |                        |              |
>>>>> |           |          |                        |              |
>>>>> |      ----------     peer   ----------      -----------       |
>>>>> |      |  veth02 | --------- |  veth20 |     | veth12  |       |
>>>>> |      ----------      |     ----------      -----------       |
>>>>> |                      |         ns2                           |
>>>>> |                      |                                       |
>>>>> +--------------------------------------------------------------+
>>>>> 
>>>>> Test results:
>>>>> # selftests: netfilter: ipvs.sh
>>>>> # Testing DR mode...
>>>>> # Testing NAT mode...
>>>>> # Testing Tunnel mode...
>>>>> # ipvs.sh: PASS
>>>>> ok 6 selftests: netfilter: ipvs.sh
>>>>> 
>>>>> Haishuang Yan (3):
>>>>> selftests: netfilter: add ipvs test script
>>>>> selftests: netfilter: add ipvs nat test case
>>>>> selftests: netfilter: add ipvs tunnel test case
>>>> 
>>>> Acked-by: Julian Anastasov <ja@xxxxxx>
>>>> 
>>>>> tools/testing/selftests/netfilter/Makefile |   2 +-
>>>>> tools/testing/selftests/netfilter/ipvs.sh  | 234 
>>>>> +++++++++++++++++++++++++++++
>>>>> 2 files changed, 235 insertions(+), 1 deletion(-)
>>>>> create mode 100755 tools/testing/selftests/netfilter/ipvs.sh
>>>> 
>>>> Regards
>>>> 
>>>> --
>>>> Julian Anastasov <ja@xxxxxx>
>>> 
>>> I still prefer #!/bin/sh in 1/3. You never know what's in someone's 
>>> environment
>>> 
>>> Cheers ... Duncan.
>>> 
>> 
>> It??s also my preference too. "_"    
>> 
>> I have tested both #!/bin/bash and #!/bin/sh script, they all works properly.
> 
> Enter these 2 lines:
>> ip(){ return 0; }
>> export -f ip
> 
> Now try the #!/bin/bash script. If that now fails, try again with #!/bin/bash
> changed to #!/bin/bash -p
> 
> Any better now?
> 
> Cheers ... Duncan.
> 
It’s better now, thanks for your explanation.
In v3 commit I will use #!/bin/bash -p to prevent exporting function from 
environment variables.


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