From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from dpdk.org (dpdk.org [92.243.14.124]) by inbox.dpdk.org (Postfix) with ESMTP id 38BDDA04C1 for ; Wed, 20 Nov 2019 13:18:39 +0100 (CET) Received: from [92.243.14.124] (localhost [127.0.0.1]) by dpdk.org (Postfix) with ESMTP id 0396723D; Wed, 20 Nov 2019 13:18:39 +0100 (CET) Received: from mga05.intel.com (mga05.intel.com [192.55.52.43]) by dpdk.org (Postfix) with ESMTP id 11CBD23D; Wed, 20 Nov 2019 13:18:36 +0100 (CET) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga002.fm.intel.com ([10.253.24.26]) by fmsmga105.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 20 Nov 2019 04:18:36 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.69,221,1571727600"; d="scan'208";a="237710145" Received: from fyigit-mobl.ger.corp.intel.com (HELO [10.237.221.96]) ([10.237.221.96]) by fmsmga002.fm.intel.com with ESMTP; 20 Nov 2019 04:18:33 -0800 To: Pallavi Kadam , David Marchand , dev@dpdk.org Cc: thomas@monjalon.net, stable@dpdk.org, Wenzhuo Lu , Jingjing Wu , Bernard Iremonger , Anatoly Burakov , Ranjit Menon References: <20191117171013.17373-1-david.marchand@redhat.com> <20191118153714.17610-1-david.marchand@redhat.com> <6d3650f1-4b00-9e58-c31b-cfb57d21bf60@intel.com> From: Ferruh Yigit Openpgp: preference=signencrypt Autocrypt: addr=ferruh.yigit@intel.com; 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charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Subject: Re: [dpdk-stable] [PATCH v2] app/testpmd: report invalid command line parameter X-BeenThere: stable@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: patches for DPDK stable branches List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: stable-bounces@dpdk.org Sender: "stable" On 11/19/2019 7:18 PM, Pallavi Kadam wrote: > > On 11/18/2019 8:18 AM, Ferruh Yigit wrote: >> On 11/18/2019 3:37 PM, David Marchand wrote: >>> We currently do not check that a non option string has been passed to >>> testpmd. >>> >>> Example: >>> $ ./master/app/testpmd --no-huge -m 512 --vdev net_null0 \ >>> --vdev net_null1 -- -i nb-cores=2 --total-num-mbuf 2048 >>> [...] >>> testpmd> show config fwd >>> io packet forwarding - ports=2 - cores=1 - streams=2 - NUMA support >>> enabled, MP allocation mode: native >>> Logical Core 1 (socket 0) forwards packets on 2 streams: >>> RX P=0/Q=0 (socket 0) -> TX P=1/Q=0 (socket 0) peer=02:00:00:00:00:01 >>> RX P=1/Q=0 (socket 0) -> TX P=0/Q=0 (socket 0) peer=02:00:00:00:00:00 >>> >>> Here nb-cores=2 is just ignored, while the (probably sleepy) user did not >>> notice this. >>> >>> Validate that all strings passed to testpmd are part of a known option. >>> >>> After this patch: >>> $ ./master/app/testpmd --no-huge -m 512 --vdev net_null0 \ >>> --vdev net_null1 -- -i nb-cores=2 --total-num-mbuf 2048 >>> [...] >>> Invalid parameter: nb-cores=2 >>> EAL: Error - exiting with code: 1 >>> Cause: Command line incorrect >>> >>> While at it, when passing an unknown option, print the string that gets >>> refused by getopt_long to help the user. >>> >>> Fixes: af75078fece3 ("first public release") >>> Cc: stable@dpdk.org >>> >>> Signed-off-by: David Marchand >>> Reviewed-by: Ferruh Yigit >>> --- >>> This seems a bit dangerous to take this kind of change this late. >>> Some "working fine" scripts might now report failures from testpmd because >>> of garbage in the command line. >>> >>> Sending the patch anyway to see what others think about it. >>> >>> Changelog since v1: >>> - fixed example in commitlog, >>> >>> --- >>> app/test-pmd/parameters.c | 7 +++++++ >>> 1 file changed, 7 insertions(+) >>> >>> diff --git a/app/test-pmd/parameters.c b/app/test-pmd/parameters.c >>> index deca7a6828..2e7a504415 100644 >>> --- a/app/test-pmd/parameters.c >>> +++ b/app/test-pmd/parameters.c >>> @@ -1363,12 +1363,19 @@ launch_args_parse(int argc, char** argv) >>> break; >>> default: >>> usage(argv[0]); >>> + printf("Invalid option: %s\n", argv[optind]); >>> rte_exit(EXIT_FAILURE, >>> "Command line is incomplete or incorrect\n"); >>> break; >>> } >>> } >>> >>> + if (optind != argc) { >> I hope 'optind' works as expected [1] in Windows too (Anatoly verified the >> FreeBSD one). >> >> @Pallavi, @Ranjit, Can you please confirm it? >> >> [1] >> https://linux.die.net/man/3/optind >> " >> If there are no more option characters, getopt() returns -1. Then optind is the >> index in argv of the first argv-element that is not an option. >> " > > Verified on Windows. So far this change does not affect Windows code. > Also, Windows does not support testpmd app yet. > Applied to dpdk-next-net/master, thanks.