netdev - Re: [PATCH v2 net-next] selftests/net: change shebang to bash to support "source"

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Date: Sun, 31 Dec 2023 17:27:05 +0100
From: Guillaume Nault <gnault@...hat.com>
To: Yujie Liu <yujie.liu@...el.com>
Cc: netdev@...r.kernel.org, Hangbin Liu <liuhangbin@...il.com>,
	Paolo Abeni <pabeni@...hat.com>, David Ahern <dsahern@...nel.org>,
	linux-kselftest@...r.kernel.org, linux-kernel@...r.kernel.org,
	lkp@...el.com, kernel test robot <oliver.sang@...el.com>
Subject: Re: [PATCH v2 net-next] selftests/net: change shebang to bash to
 support "source"

On Fri, Dec 29, 2023 at 09:19:31PM +0800, Yujie Liu wrote:
> The patch set [1] added a general lib.sh in net selftests, and converted
> several test scripts to source the lib.sh.
> 
> unicast_extensions.sh (converted in [1]) and pmtu.sh (converted in [2])
> have a /bin/sh shebang which may point to various shells in different
> distributions, but "source" is only available in some of them. For
> example, "source" is a built-it function in bash, but it cannot be
> used in dash.
> 
> Refer to other scripts that were converted together, simply change the
> shebang to bash to fix the following issues when the default /bin/sh
> points to other shells.
> 
> # selftests: net: unicast_extensions.sh
> # ./unicast_extensions.sh: 31: source: not found
> # ###########################################################################
> # Unicast address extensions tests (behavior of reserved IPv4 addresses)
> # ###########################################################################
> # TEST: assign and ping within 240/4 (1 of 2) (is allowed)            [FAIL]
> # TEST: assign and ping within 240/4 (2 of 2) (is allowed)            [FAIL]
> # TEST: assign and ping within 0/8 (1 of 2) (is allowed)              [FAIL]
> # TEST: assign and ping within 0/8 (2 of 2) (is allowed)              [FAIL]
> # TEST: assign and ping inside 255.255/16 (is allowed)                [FAIL]
> # TEST: assign and ping inside 255.255.255/24 (is allowed)            [FAIL]
> # TEST: route between 240.5.6/24 and 255.1.2/24 (is allowed)          [FAIL]
> # TEST: route between 0.200/16 and 245.99/16 (is allowed)             [FAIL]
> # TEST: assign and ping lowest address (/24)                          [FAIL]
> # TEST: assign and ping lowest address (/26)                          [FAIL]
> # TEST: routing using lowest address                                  [FAIL]
> # TEST: assigning 0.0.0.0 (is forbidden)                              [ OK ]
> # TEST: assigning 255.255.255.255 (is forbidden)                      [ OK ]
> # TEST: assign and ping inside 127/8 (is forbidden)                   [ OK ]
> # TEST: assign and ping class D address (is forbidden)                [ OK ]
> # TEST: routing using class D (is forbidden)                          [ OK ]
> # TEST: routing using 127/8 (is forbidden)                            [ OK ]
> not ok 51 selftests: net: unicast_extensions.sh # exit=1
> 
> v1 -> v2:
>   - Fix pmtu.sh which has the same issue as unicast_extensions.sh,
>     suggested by Hangbin
>   - Change the style of the "source" line to be consistent with other
>     tests, suggested by Hangbin
> 
> Link: https://lore.kernel.org/all/20231202020110.362433-1-liuhangbin@gmail.com/ [1]
> Link: https://lore.kernel.org/all/20231219094856.1740079-1-liuhangbin@gmail.com/ [2]

Also, please add the missing Fixes tags.

> Reported-by: kernel test robot <oliver.sang@...el.com>
> Signed-off-by: Yujie Liu <yujie.liu@...el.com>