[LTP] [PATCH 1/1] iptables: Reduce code duplicity

[Alexey Kodanev]

Hi Petr,
On 19.12.2019 10:26, Petr Vorel wrote:
> Signed-off-by: Petr Vorel <pvorel@suse.cz>
> ---
> Hi Alexey,
> 
> feel free to not ack this as not needed syntax optimalization.
> This way the most of variables is set in the library,
> so people would hopefuly search for them there.
> 
> 0 is the default in [ "$foo" = 1 ], but maybe use_iptables=0 in
> nft01.sh is better for readability.
> 

Lgtm, except the removing of the variables, which were initializing
with 0 (including cleanup_ ones). I know, it's very unlikely, but what
if someone use the same name already elsewhere, then we get unexpected
results for the test:

# export use_iptables=1
# nft01.sh 
nft01 1 TINFO: timeout per run is 0h 5m 0s
nft01 1 TINFO: INIT: Flushing all rules
nft01 1 TINFO: iptables -L -t filter will list all rules in table filter
nft01 1 TINFO: iptables -L -t filter lists rules


> Kind regards,
> Petr
> 
>  testcases/network/iptables/iptables01.sh   |  5 -----
>  testcases/network/iptables/iptables_lib.sh | 10 ++++++++++
>  testcases/network/iptables/nft01.sh        |  6 ------
>  3 files changed, 10 insertions(+), 11 deletions(-)
> 
> diff --git a/testcases/network/iptables/iptables01.sh b/testcases/network/iptables/iptables01.sh
> index e6ed4afab..b788b919a 100755
> --- a/testcases/network/iptables/iptables01.sh
> +++ b/testcases/network/iptables/iptables01.sh
> @@ -2,13 +2,8 @@
>  # SPDX-License-Identifier: GPL-2.0-or-later
>  # Copyright (c) 2018-2019 Oracle and/or its affiliates. All Rights Reserved.
>  
> -TST_SETUP="init"
> -TST_CLEANUP="cleanup"
> -TST_NEEDS_CMDS="iptables grep ping telnet"
> -TST_NEEDS_DRIVERS="ip_tables"
>  use_iptables=1
>  
>  . iptables_lib.sh
> -. tst_test.sh
>  
>  tst_run
> diff --git a/testcases/network/iptables/iptables_lib.sh b/testcases/network/iptables/iptables_lib.sh
> index b098479e4..b029950f9 100755
> --- a/testcases/network/iptables/iptables_lib.sh
> +++ b/testcases/network/iptables/iptables_lib.sh
> @@ -10,13 +10,23 @@ TST_CNT=6
>  TST_TESTFUNC="test"
>  TST_NEEDS_TMPDIR=1
>  TST_NEEDS_ROOT=1
> +TST_SETUP="${TST_SETUP:-init}"
> +TST_CLEANUP="${TST_CLEANUP:-cleanup}"
>  
>  if [ "$use_iptables" = 1 ]; then
>  	toolname=iptables
> +	cmds="$toolname"
> +	TST_NEEDS_DRIVERS="ip_tables"
>  else
>  	toolname=nft
> +	cmds="$toolname iptables-translate"
> +	TST_NEEDS_DRIVERS="nf_tables"
>  fi
>  
> +TST_NEEDS_CMDS="$cmds grep ping telnet"
> +
> +. tst_test.sh
> +
>  NFRUN()
>  {
>  	local rule
> diff --git a/testcases/network/iptables/nft01.sh b/testcases/network/iptables/nft01.sh
> index 9bd10a7f5..7d3fc4e0d 100755
> --- a/testcases/network/iptables/nft01.sh
> +++ b/testcases/network/iptables/nft01.sh
> @@ -4,14 +4,8 @@
>  
>  TST_SETUP="do_setup"
>  TST_CLEANUP="do_cleanup"
> -TST_NEEDS_CMDS="nft iptables-translate grep ping telnet"
> -TST_NEEDS_DRIVERS="nf_tables"
> -use_iptables=0
> -cleanup_table=0
> -cleanup_chain=0
>  
>  . iptables_lib.sh
> -. tst_test.sh
>  
>  do_setup()
>  {
>