Problems setting up dhcpv6 option 59 (boot file name -- rfc5970) on bind10

Marcin Siodelski marcin at isc.org
Fri Feb 7 18:04:58 UTC 2014 

Angelo,

The ticket has been resolved and it is on master branch in our git repo. Until released, you need to use the latest bind10 version from git to have this fix.

Marcin



----- Original Message -----
> From: "Angelo Failla" <pallotron at fb.com>
> To: "Marcin Siodelski" <marcin at isc.org>
> Cc: bind10-dhcp at lists.isc.org
> Sent: Thursday, January 30, 2014 11:54:35 PM
> Subject: Re: Problems setting up dhcpv6 option 59 (boot file name -- rfc5970) on bind10
> 
> That worked,
> 
> Thanks Marcin. Will I receive an email what that ticket will be closed?
> --
> Angelo Failla
> 
> Site Reliability Operations Dublin
> Pallotron at fb.com
> 
> 
> 
> 
> On 1/28/14, 10:29 AM, "Marcin Siodelski" <marcin at isc.org> wrote:
> 
> >Angelo,
> >
> >Here is a new ticket I submitted for this issue:
> >http://bind10.isc.org/ticket/3309
> >
> >We will work with a team to assign a proper priority for it.
> >
> >I am suggesting that you apply the following hack in the
> >src/lib/dhcp/libdhcp++.cc, in function isStdOption:
> >
> >replace this:
> >        if (code < 79 &&
> >            code != 10 &&
> >            code != 35) {
> >            return (true);
> >        }
> >
> >with this:
> >
> >        if (code < 49 &&
> >            code != 10 &&
> >            code != 35) {
> >            return (true);
> >        }
> >
> >as we currently provide definitions for standard options up to code 48.
> >
> >After that change you will have to rebuild bind10.
> >
> >With this change you'll be able to define your own definition for option
> >59 using bindctl.
> >
> >Let me know if it works for you.
> >
> >Marcin
> >
> >
> >
> >----- Original Message -----
> >> From: "Angelo Failla" <pallotron at fb.com>
> >> To: "Marcin Siodelski" <marcin at isc.org>
> >> Cc: bind10-dhcp at lists.isc.org
> >> Sent: Tuesday, January 28, 2014 7:05:17 PM
> >> Subject: Re: Problems setting up dhcpv6 option 59 (boot file name --
> >>rfc5970) on bind10
> >> 
> >> Hello Marcin,
> >> 
> >> Thanks for your response, I don’t have an account yet. Can you submit
> >>the
> >> bug report for me?
> >> Is there any work around this in the meantime?
> >> 
> >> Can I define option 59 as a member of the vendor-opts-space?
> >> --
> >> Angelo Failla
> >> 
> >> Site Reliability Operations Dublin
> >> Pallotron at fb.com
> >> 
> >> 
> >> 
> >> 
> >> On 1/28/14, 10:01 AM, "Marcin Siodelski" <marcin at isc.org> wrote:
> >> 
> >> >Angelo,
> >> >
> >> >Many thanks for your email. Currently dhcp server provides a limited
> >>set
> >> >of std option definitions. The option 59 doesn't have its definition in
> >> >src/lib/dhcp/std_option_defs.h, and that's why the configuration
> >> >mechanism complains. On the other hand, there is a function in
> >>libdhcp++
> >> >which you probably spotted already, that checks whether the given
> >>option
> >> >is a standard option or custom one. It does it to make sure that nobody
> >> >overrides the format of a standard option, which doesn't make much
> >>sense,
> >> >but may rather cause trouble.
> >> >
> >> >However, this check shouldn't be so strict as long as we don't have
> >> >definitions for all standard options as it causes grief for someone
> >> >trying to setup the value for such an option.
> >> >
> >> >If you have an account on bind10.isc.org, can you please submit a bug
> >> >ticket for your problem? Please assign it to DHCP sub-project and
> >>libdhcp
> >> >component. If you don't have an account, please let me know. I will
> >>file
> >> >a bug on my own.
> >> >
> >> >Thanks for your efforts and reporting this problem.
> >> >
> >> >Marcin
> >> >
> >> >
> >> >
> >> >----- Original Message -----
> >> >> From: "Angelo Failla" <pallotron at fb.com>
> >> >> To: "Angelo Failla" <pallotron at fb.com>, bind10-dhcp at lists.isc.org
> >> >> Sent: Tuesday, January 28, 2014 6:40:22 PM
> >> >> Subject: Re: Problems setting up dhcpv6 option 59 (boot file name
> >> >>--	rfc5970) on bind10
> >> >> 
> >> >> It looks like you treat everything < 79 like standard option in
> >> >> src/lib/dhcp/libdhcp++.cc
> >> >> --
> >> >> Angelo Failla
> >> >> 
> >> >> Site Reliability Operations Dublin
> >> >> Pallotron at fb.com
> >> >> 
> >> >> 
> >> >> 
> >> >> 
> >> >> On 1/28/14, 9:33 AM, "Angelo Failla" <pallotron at fb.com> wrote:
> >> >> 
> >> >> >Hi,
> >> >> >
> >> >> >I¹m testing bind10 dhcpv6 and I¹m having troubles setting up option
> >>59.
> >> >> >
> >> >> >Here is my config:
> >> >> >
> >> >> >> config show_json Dhcp6/
> >> >> >{"option-data": [{"data": "n", "code": 144, "space": "dhcp6",
> >> >> >"csv-format": true, "name": "tmpfs"}, {"data":
> >>"2401:db00:eef0:a52::,
> >> >> >2401:db00:eef0:b52::", "code": 23, "space": "dhcp6", "csv-format":
> >> >>true,
> >> >> >"name": "dns-servers"}, {"data":
> >> >> >"tftp://[fe80::202:c9ff:feca:f56a]:69/efi/efidefault", "code": 59,
> >> >> >"space": "dhcp6", "name": "boot-file-name", "csv-format": true}],
> >> >> >"option-def": [{"code": 144, "type": "string", "record-types": "",
> >> >> >"encapsulate": "", "space": "dhcp6", "array": false, "name":
> >>"tmpfs"}]}
> >> >> >
> >> >> >
> >> >> >
> >> >> >When running config commit I get this:
> >> >> >
> >> >> >> config commit
> >> >> >Error: Configuration parsing failed: the CSV option data format can
> >>be
> >> >> >used to specify values for an option that has a definition. The
> >>option
> >> >> >with code 59 does not have a definition.
> >> >> >Configuration not committed
> >> >> >
> >> >> >
> >> >> >
> >> >> >I tried to define option 59 like this:
> >> >> >
> >> >> >> config set Dhcp6/option-def[1]/name "boot-file-name"
> >> >> >> config set Dhcp6/option-def[1]/code 59
> >> >> >> config set Dhcp6/option-def[1]/type string
> >> >> >> config set Dhcp6/option-def[1]/array false
> >> >> >> config set Dhcp6/option-def[1]/record-types ""
> >> >> >> config set Dhcp6/option-def[1]/space "dhcp6"
> >> >> >> config set Dhcp6/option-def[1]/encapsulate ""
> >> >> >
> >> >> >But I get this error when committingŠ
> >> >> >
> >> >> >> config commit
> >> >> >Error: Configuration parsing failed: unable to override definition
> >>of
> >> >> >option '59' in standard option space 'dhcp6'.
> >> >> >Configuration not committed
> >> >> >
> >> >> >Any idea of what I¹m doing wrong? I guess the server treats option
> >>59
> >> >>as a
> >> >> >standard v6 option but I can¹t find any reference of it in the html
> >> >>guide
> >> >> 
> >>>(http://bind10.isc.org/docs/bind10-guide.html#dhcp6-std-options-list)
> >> >> >
> >> >> >I¹m running 1.1.0 (the stable version =>
> >> >> >ftp://ftp.isc.org/isc/bind10/1.1.0/)
> >> >> >
> >> >> >
> >> >> >--
> >> >> >Angelo Failla
> >> >> >
> >> >> >Site Reliability Operations Dublin
> >> >> >Pallotron at fb.com
> >> >> >
> >> >> >
> >> >> >_______________________________________________
> >> >> >bind10-dhcp mailing list
> >> >> >bind10-dhcp at lists.isc.org
> >> >> >https://lists.isc.org/mailman/listinfo/bind10-dhcp
> >> >> 
> >> >> _______________________________________________
> >> >> bind10-dhcp mailing list
> >> >> bind10-dhcp at lists.isc.org
> >> >> https://lists.isc.org/mailman/listinfo/bind10-dhcp
> >> >> 
> >> 
> >>
> 
>

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