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From: Olivier Matz <olivier.matz@6wind.com>
To: Aaron Conole <aconole@redhat.com>
Cc: Stephen Hemminger <stephen@networkplumber.org>,
	"Li, WenjieX A" <wenjiex.a.li@intel.com>,
	"Wang, FengqinX" <fengqinx.wang@intel.com>,
	"Byrne, Stephen1" <stephen1.byrne@intel.com>,
	dev@dpdk.org
Subject: Re: [dpdk-dev] [PATCH v5 6/8] cmdline: use new ethernet address parser
Date: Wed, 17 Jul 2019 16:39:38 +0200	[thread overview]
Message-ID: <20190717143938.3qogb4kygvxddwkq@platinum> (raw)
In-Reply-To: <f7ta7dczrj9.fsf@dhcp-25.97.bos.redhat.com>

On Wed, Jul 17, 2019 at 10:04:10AM -0400, Aaron Conole wrote:
> Stephen Hemminger <stephen@networkplumber.org> writes:
> 
> > On Tue, 16 Jul 2019 01:17:56 +0000
> > "Li, WenjieX A" <wenjiex.a.li@intel.com> wrote:
> >
> >> Hi Stephen,
> >> 
> >> 
> >> 
> >> This DPDK patch makes cmdline_autotest failed. List the details as below.
> >> 
> >> Could you please help to resolve it?
> >> 
> >> Thank you!
> >> Test Setup
> >> Steps to reproduce
> >> List the steps to reproduce the issue.
> >> ./x86_64-native-linuxapp-gcc/app/test -n 1 -c 0xff
> >> testpmd> cmdline_autotest  
> >> Show the output from the previous commands.
> >> Testind parsing ethernet addresses...
> >> Error: parsing 01:23:45:67:89:A succeeded!
> >> Test Failed
> >> Expected Result
> >> Explain what is the expected result in text or as an example output:
> >> Testind parsing ethernet addresses...
> >> Testind parsing port lists...
> >> Testind parsing numbers...
> >> Testing parsing IP addresses...
> >> Testing parsing strings...
> >> Testing circular buffer...
> >> Testing library functions...
> >> Test OK
> >> 
> >> 
> >> 
> >> BR,
> >> 
> >> Wenjie
> >> 
> >
> > There are two possible solutions. Make the ether_unformat_addr function
> > more complex and more restrictive. The new version corresponds to the FreeBSD
> > behavior.
> 
> Not exactly.  The new code accepts 2 forms (X:X:X:X:X:X which is
> FreeBSD, as well as X:X:X which is not).  Because of this, there is a
> higher likelihood of ambiguity.  I want to submit a patch to fix this
> ambiguity (but got pulled into a customer bug).  Maybe someone else can?

I will have a look at it.


> I think it's best to make the code slightly more complex.  I originally
> submitted a change just validating the string length[0], which is probably
> too restrictive.
> 
> Maybe a better version would be something like the original (rewritten
> to ensure it supports things like XX:X:XX:X:XX:X format, also):
> 
> {
>    unsigned long o[ETHER_ADDR_LEN];
>    char *end, *input = buf;
>    size_t i = 0;
> 
>    do {
>      errno = 0;
>      o[i] = strtoul(input, &end, 16);
>      if (errno != 0 || end == input || (end && *end != ':' && *end != 0))
>         return ERROR;
>      input = end+1;
>    } while((input - buf < buflen) && ++i < ARRAY_SIZE(o) && *end != 0);
> 
>    if (*end != 0)
>       return ERROR;
> 
>    if (i == 6) /*x:x:x:x:x:x*/
>    else if (i == 3) /*x:x:x*/
>    else return ERROR
> }
> 
> WDYT?
> 
> > The other possibility is just remove the test case.
> 
> I don't like this approach - right now its possible that a user (doing
> c/p) can submit an ipv6 address which will be accepted as valid.  I
> prefer to be validating the form.  Even if XX:X:X:XX:X:X is okay,
> XXXX:XXXX:XX::X shouldn't be.  There's a limit to how liberal we should
> be when accepting input.
> 
> > I am leaning towards the latter as the least work.
> 
> Least work isn't always the right thing.
> 
> 0: http://mails.dpdk.org/archives/dev/2019-July/137827.html

  reply	other threads:[~2019-07-17 14:39 UTC|newest]

Thread overview: 127+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-05-16 18:04 [dpdk-dev] [PATCH v2 0/7] ether: improvements and optimizations Stephen Hemminger
2019-05-16 18:04 ` [dpdk-dev] [PATCH v2 1/7] ether: mark ethernet addresses as being 2-byte aligned Stephen Hemminger
2019-05-16 18:04 ` [dpdk-dev] [PATCH v2 2/7] ether: do not mark ethernet address and header as packed Stephen Hemminger
2019-05-16 20:40   ` Bruce Richardson
2019-05-16 23:17     ` Stephen Hemminger
2019-05-16 18:04 ` [dpdk-dev] [PATCH v2 3/7] ether: deinline non-critical functions Stephen Hemminger
2019-05-16 18:29   ` Rami Rosen
2019-05-17  7:08   ` David Marchand
2019-05-16 18:04 ` [dpdk-dev] [PATCH v2 4/7] ether: add eth_unformat_addr Stephen Hemminger
2019-05-17  7:08   ` David Marchand
2019-05-16 18:04 ` [dpdk-dev] [PATCH v2 5/7] ethdev: use eth_unformat_addr Stephen Hemminger
2019-05-16 18:04 ` [dpdk-dev] [PATCH v2 6/7] ether: use bitops to speedup comparison Stephen Hemminger
2019-05-16 18:04 ` [dpdk-dev] [PATCH v2 7/7] cmdline: use ether_unformat_addr Stephen Hemminger
2019-06-05  1:08 ` [dpdk-dev] [PATCH v3 0/6] net/ether: improvements and optimizations Stephen Hemminger
2019-06-05  1:08   ` [dpdk-dev] [PATCH v3 1/6] net/rte_ether: deinline non-critical functions Stephen Hemminger
2019-06-05  8:44     ` Andrew Rybchenko
2019-06-05 16:29       ` Stephen Hemminger
2019-06-05  1:08   ` [dpdk-dev] [PATCH v3 2/6] net/ether: add rte_eth_unformat_addr Stephen Hemminger
2019-06-05  8:55     ` Andrew Rybchenko
2019-06-05 16:31       ` Stephen Hemminger
2019-06-05  1:08   ` [dpdk-dev] [PATCH v3 3/6] ethdev: use rte_eth_unformat_addr Stephen Hemminger
2019-06-05  8:59     ` Andrew Rybchenko
2019-06-05 15:02       ` Stephen Hemminger
2019-06-05 16:33       ` Stephen Hemminger
2019-06-05  1:08   ` [dpdk-dev] [PATCH v3 4/6] net/ether: use bitops to speedup comparison Stephen Hemminger
2019-06-05  9:02     ` Andrew Rybchenko
2019-06-05  1:08   ` [dpdk-dev] [PATCH v3 5/6] net/ether: mark ethernet addresses as being 2-byte aligned Stephen Hemminger
2019-06-05  9:04     ` Andrew Rybchenko
2019-06-05  1:08   ` [dpdk-dev] [PATCH v3 6/6] cmdline: use rte_ether_unformat_addr Stephen Hemminger
2019-06-05 18:09 ` [dpdk-dev] [PATCH v4 0/8] net/ether: enhancements and optimizations Stephen Hemminger
2019-06-05 18:09   ` [dpdk-dev] [PATCH v4 1/8] net/rte_ether: deinline non-critical functions Stephen Hemminger
2019-06-06  8:06     ` Maxime Coquelin
2019-06-05 18:09   ` [dpdk-dev] [PATCH v4 2/8] net/ether: add rte_eth_unformat_addr Stephen Hemminger
2019-06-05 18:09   ` [dpdk-dev] [PATCH v4 3/8] ethdev: use rte_eth_unformat_addr Stephen Hemminger
2019-06-05 18:09   ` [dpdk-dev] [PATCH v4 4/8] net/ether: use bitops to speedup comparison Stephen Hemminger
2019-06-05 18:09   ` [dpdk-dev] [PATCH v4 5/8] net/ether: mark ethernet addresses as being 2-byte aligned Stephen Hemminger
2019-06-07 16:59     ` Ananyev, Konstantin
2019-06-07 18:35       ` Stephen Hemminger
2019-06-07 20:40         ` Richardson, Bruce
2019-06-08 11:51         ` Ananyev, Konstantin
2019-06-07 20:39       ` Richardson, Bruce
2019-06-08 12:15         ` Ananyev, Konstantin
2019-06-05 18:09   ` [dpdk-dev] [PATCH v4 6/8] cmdline: use rte_ether_unformat_addr Stephen Hemminger
2019-06-05 18:09   ` [dpdk-dev] [PATCH v4 7/8] net/bonding: use rte_ether_unformat_addr rather than cmdline_parse Stephen Hemminger
2019-06-05 18:09   ` [dpdk-dev] [PATCH v4 8/8] app/testpmd: use rte_ether_unformat_addr Stephen Hemminger
2019-06-20 14:18     ` Iremonger, Bernard
2019-06-20 16:12       ` Stephen Hemminger
2019-06-24 20:44 ` [dpdk-dev] [PATCH v5 0/8] net/ether: enhancements and optimizations Stephen Hemminger
2019-06-24 20:44   ` [dpdk-dev] [PATCH v5 1/8] net/rte_ether: deinline non-critical functions Stephen Hemminger
2019-07-02  7:56     ` Olivier Matz
2019-06-24 20:44   ` [dpdk-dev] [PATCH v5 2/8] net/ether: add function to convert string to ethernet address Stephen Hemminger
2019-06-24 20:44   ` [dpdk-dev] [PATCH v5 3/8] ethdev: use new ethernet parsing function Stephen Hemminger
2019-06-24 20:44   ` [dpdk-dev] [PATCH v5 4/8] net/ether: use bitops to speedup comparison Stephen Hemminger
2019-07-02  7:53     ` Olivier Matz
2019-07-02  9:26       ` Olivier Matz
2019-07-02 15:28         ` Stephen Hemminger
2019-06-24 20:44   ` [dpdk-dev] [PATCH v5 5/8] net/ether: mark ethernet addresses as being 2-byte aligned Stephen Hemminger
2019-06-24 20:44   ` [dpdk-dev] [PATCH v5 6/8] cmdline: use new ethernet address parser Stephen Hemminger
     [not found]     ` <8688172CD5C0B74590FAE19D9579F94B53742875@SHSMSX103.ccr.corp.intel.com>
2019-07-16 16:17       ` Stephen Hemminger
2019-07-17 14:04         ` Aaron Conole
2019-07-17 14:39           ` Olivier Matz [this message]
2019-06-24 20:44   ` [dpdk-dev] [PATCH v5 7/8] net/bonding: " Stephen Hemminger
2019-06-24 20:44   ` [dpdk-dev] [PATCH v5 8/8] app/testpmd: " Stephen Hemminger
2019-07-02 16:50 ` [dpdk-dev] [PATCH v6 0/8] net/ether: enhancements and optimizations Stephen Hemminger
2019-07-02 16:50   ` [dpdk-dev] [PATCH v6 1/8] net/rte_ether: deinline non-critical functions Stephen Hemminger
2019-07-02 16:50   ` [dpdk-dev] [PATCH v6 2/8] net/ether: add function to convert string to ethernet address Stephen Hemminger
2019-07-02 16:50   ` [dpdk-dev] [PATCH v6 3/8] ethdev: use new ethernet parsing function Stephen Hemminger
2019-07-02 16:50   ` [dpdk-dev] [PATCH v6 4/8] net/ether: use bitops to speedup comparison Stephen Hemminger
2019-07-02 16:50   ` [dpdk-dev] [PATCH v6 5/8] net/ether: mark ethernet addresses as being 2-byte aligned Stephen Hemminger
2019-07-02 21:46     ` Ananyev, Konstantin
2019-07-02 16:50   ` [dpdk-dev] [PATCH v6 6/8] cmdline: use new ethernet address parser Stephen Hemminger
2019-07-02 16:50   ` [dpdk-dev] [PATCH v6 7/8] net/bonding: " Stephen Hemminger
2019-07-02 16:50   ` [dpdk-dev] [PATCH v6 8/8] app/testpmd: " Stephen Hemminger
2019-07-02 21:37   ` [dpdk-dev] [PATCH v6 0/8] net/ether: enhancements and optimizations Thomas Monjalon
2019-07-02 22:03     ` Stephen Hemminger
2019-07-02 22:12 ` [dpdk-dev] [PATCH v7 00/12] ether: improvements " Stephen Hemminger
2019-07-02 22:12   ` [dpdk-dev] [PATCH v7 01/12] net/rte_ether: deinline non-critical functions Stephen Hemminger
2019-07-05 14:25     ` Olivier Matz
2019-07-02 22:12   ` [dpdk-dev] [PATCH v7 02/12] net/ether: add function to convert string to ethernet address Stephen Hemminger
2019-07-05 14:25     ` Olivier Matz
2019-07-02 22:12   ` [dpdk-dev] [PATCH v7 03/12] ethdev: use new ethernet parsing function Stephen Hemminger
2019-07-02 22:12   ` [dpdk-dev] [PATCH v7 04/12] net/ether: use bitops to speedup comparison Stephen Hemminger
2019-07-05 14:34     ` Olivier Matz
2019-07-02 22:12   ` [dpdk-dev] [PATCH v7 05/12] net/ether: mark ethernet addresses as being 2-byte aligned Stephen Hemminger
2019-07-05 14:34     ` Olivier Matz
2019-07-05 15:45       ` Richardson, Bruce
2019-07-02 22:12   ` [dpdk-dev] [PATCH v7 06/12] cmdline: use new ethernet address parser Stephen Hemminger
2019-07-05 14:46     ` Olivier Matz
2019-07-02 22:12   ` [dpdk-dev] [PATCH v7 07/12] net/bonding: " Stephen Hemminger
2019-07-02 22:12   ` [dpdk-dev] [PATCH v7 08/12] app/testpmd: " Stephen Hemminger
2019-07-03 13:30     ` Iremonger, Bernard
2019-07-05 17:12       ` Stephen Hemminger
2019-07-02 22:12   ` [dpdk-dev] [PATCH v7 09/12] net/virtio: use new ether addr parsing Stephen Hemminger
2019-07-02 22:12   ` [dpdk-dev] [PATCH v7 10/12] net/failsafe: use common ether address parsing routine Stephen Hemminger
2019-07-03  9:10     ` Gaëtan Rivet
2019-07-02 22:12   ` [dpdk-dev] [PATCH v7 11/12] net/vdev_netvsc: use common ethernet address parsing Stephen Hemminger
2019-07-03  8:12     ` Matan Azrad
2019-07-02 22:12   ` [dpdk-dev] [PATCH v7 12/12] net/memif: use common ethernet address parsing routine Stephen Hemminger
2019-07-05 17:16 ` [dpdk-dev] [PATCH v8 00/11] ether: improvements and optimizations Stephen Hemminger
2019-07-05 17:16   ` [dpdk-dev] [PATCH v8 01/11] net/ether: deinline non-critical functions Stephen Hemminger
2019-07-05 17:16   ` [dpdk-dev] [PATCH v8 02/11] net/ether: add function to convert string to ethernet address Stephen Hemminger
2019-07-05 17:16   ` [dpdk-dev] [PATCH v8 03/11] ethdev: use new ethernet parsing function Stephen Hemminger
2019-07-05 17:16   ` [dpdk-dev] [PATCH v8 04/11] net/ether: use bitops to speedup comparison Stephen Hemminger
2019-07-05 17:16   ` [dpdk-dev] [PATCH v8 05/11] cmdline: use new ethernet address parser Stephen Hemminger
2019-07-05 17:16   ` [dpdk-dev] [PATCH v8 06/11] net/bonding: " Stephen Hemminger
2019-07-05 17:16   ` [dpdk-dev] [PATCH v8 07/11] app/testpmd: " Stephen Hemminger
2019-07-05 17:16   ` [dpdk-dev] [PATCH v8 08/11] net/virtio: use new ether addr parsing Stephen Hemminger
2019-07-05 17:16   ` [dpdk-dev] [PATCH v8 09/11] net/failsafe: use common ether address parsing routine Stephen Hemminger
2019-07-05 17:16   ` [dpdk-dev] [PATCH v8 10/11] net/vdev_netvsc: use common ethernet address parsing Stephen Hemminger
2019-07-05 17:16   ` [dpdk-dev] [PATCH v8 11/11] net/memif: use common ethernet address parsing routine Stephen Hemminger
2019-07-08 18:26 ` [dpdk-dev] [PATCH v9 00/11] ether: improvements and optimizations Stephen Hemminger
2019-07-08 18:26   ` [dpdk-dev] [PATCH v9 01/11] net/ether: deinline non-critical functions Stephen Hemminger
2019-07-08 18:26   ` [dpdk-dev] [PATCH v9 02/11] net/ether: add function to convert string to ethernet address Stephen Hemminger
2019-07-08 18:26   ` [dpdk-dev] [PATCH v9 03/11] ethdev: use new ethernet parsing function Stephen Hemminger
2019-07-08 18:26   ` [dpdk-dev] [PATCH v9 04/11] net/ether: use bitops to speedup comparison Stephen Hemminger
2019-07-08 18:26   ` [dpdk-dev] [PATCH v9 05/11] cmdline: use new ethernet address parser Stephen Hemminger
2019-07-08 18:26   ` [dpdk-dev] [PATCH v9 06/11] net/bonding: " Stephen Hemminger
2019-07-08 18:26   ` [dpdk-dev] [PATCH v9 07/11] app/testpmd: " Stephen Hemminger
2019-07-21 13:42     ` Raslan Darawsheh
2019-07-22 12:09       ` Thomas Monjalon
2019-07-22 16:15       ` Ferruh Yigit
2019-07-08 18:26   ` [dpdk-dev] [PATCH v9 08/11] net/virtio: use new ether addr parsing Stephen Hemminger
2019-07-08 18:26   ` [dpdk-dev] [PATCH v9 09/11] net/failsafe: use common ether address parsing routine Stephen Hemminger
2019-07-08 18:26   ` [dpdk-dev] [PATCH v9 10/11] net/vdev_netvsc: use common ethernet address parsing Stephen Hemminger
2019-07-08 18:26   ` [dpdk-dev] [PATCH v9 11/11] net/memif: use common ethernet address parsing routine Stephen Hemminger
2019-07-08 19:13   ` [dpdk-dev] [PATCH v9 00/11] ether: improvements and optimizations Ferruh Yigit
2019-07-09 15:01     ` Bruce Richardson

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