Re: Failed to clear configuration in Ip4Config2 Protocol

["Wu, Jiaxin" <jiaxin.wu@intel.com>]

Hi Karunakar,

DNS Device Path is used to list all the instances of the DNS server address. If there are multiple DNS server address reported from DHCP server, it will like the Spec example: Dns(192.168.22.100, 192.168.22.101). Here, according your DNS Node, there is only one DNS server returned from DHCP.

Thanks,
Jiaxin

> -----Original Message-----
> From: edk2-devel [mailto:edk2-devel-bounces@lists.01.org] On Behalf Of
> Karunakar P
> Sent: Tuesday, September 19, 2017 6:53 PM
> To: Wu, Jiaxin <jiaxin.wu@intel.com>; 'edk2-devel@lists.01.org' <edk2-
> devel@lists.01.org>; Ye, Ting <ting.ye@intel.com>
> Subject: Re: [edk2] Failed to clear configuration in Ip4Config2 Protocol
> 
> Hi Jiaxin,
> 
> Many thanks for your help.
> 
> After the successful HTTP boot DNS parsing, I can see the DNS Node, But it
> have bit difference form UEFI2.7 spec
> //....../MAC(D8CB8ADEBBAA,0x0)/IPv4(0.0.0.0)/Dns(192.168.184.1)/Uri(https
> ://www.cloudboot.com:443/EFI/Shell.efi)
> //....../MAC(D8CB8ADEBBAA,0x0)/IPv6(2001:0DB8:0000:0001:0000:0000:0000:
> 0001)/Dns(2001:0DB8:0000:0001:0000:0000:0000:0001)/Uri(https://www.clou
> dbootip6.com:443/EFI/Shell.efi)
> 
> I can see Only DNS Server IP address in DNS Node i.e. Dns(192.168.184.1)
> But UEFI2.7 spec says(24.7.3.1 Device Path, page 1329) like below
> Dns(192.168.22.100, 192.168.22.101) for IPv4
> Dns(2016::100, 2016::101   for IPv6,  DNS node have DNS Server IP and some
> other IP address too.
> 
> Why I'm getting this difference, is there anything wrong or I'm I missing
> anything?
> 
> Thanks,
> Karunakar
> 
> -----Original Message-----
> From: Wu, Jiaxin [mailto:jiaxin.wu@intel.com]
> Sent: Monday, September 18, 2017 10:28 AM
> To: Karunakar P; 'edk2-devel@lists.01.org'; Ye, Ting
> Subject: RE: [edk2] Failed to clear configuration in Ip4Config2 Protocol
> 
> Hi karunakar,
> 
> You can verify the DNS device path with HTTP boot feature. After the
> successful HTTP boot DNS parsing,  the device path should be like:
> //....../Mac(...)[/Vlan(...)][/Wi-Fi(...)]/IPv4(...)[/Dns(...)]/Uri(...).
> 
> That is recommend way for the verification.
> 
> Besides, you can also draft the App to call  the DevPathFromTextDns and
> DevPathToTextDns libraries for the more verification.
> 
> Thanks,
> Jiaxin
> 
> 
> > -----Original Message-----
> > From: Karunakar P [mailto:karunakarp@amiindia.co.in]
> > Sent: Monday, September 18, 2017 12:22 PM
> > To: Wu, Jiaxin <jiaxin.wu@intel.com>; 'edk2-devel@lists.01.org' <edk2-
> > devel@lists.01.org>; Ye, Ting <ting.ye@intel.com>
> > Subject: RE: [edk2] Failed to clear configuration in Ip4Config2
> > Protocol
> >
> > Hi Jiaxin,
> >
> > Thank you very much for your info, Yes it works fine for manual
> configuration.
> >
> > And also could you please provide steps to verify "Add DNS device path
> > node" feature.
> >
> > Thanks,
> > karunakar
> >
> > -----Original Message-----
> > From: Wu, Jiaxin [mailto:jiaxin.wu@intel.com]
> > Sent: Monday, September 18, 2017 7:46 AM
> > To: Karunakar P; 'edk2-devel@lists.01.org'; Ye, Ting
> > Subject: RE: [edk2] Failed to clear configuration in Ip4Config2
> > Protocol
> >
> > Hi Karunakar,
> >
> > According the UEFI Spec, the Ip4Config2DataTypeManualAddress,
> > Ip4Config2DataTypeGateway and Ip4Config2DataTypeDnsServer
> > configuration data are not allowed to set via SetData() if the policy is DHCP.
> > So, the clear feature is only for the manual configuration. This is
> > our design purpose and also the reason why the feature is not apply to
> > the Ip4Config2DataTypeInterfaceInfo/Ip4Config2DataTypePolicy.
> >
> > Thanks,
> > Jiaxin
> >
> >
> > > -----Original Message-----
> > > From: edk2-devel [mailto:edk2-devel-bounces@lists.01.org] On Behalf
> > > Of Karunakar P
> > > Sent: Friday, September 15, 2017 5:41 PM
> > > To: 'edk2-devel@lists.01.org' <edk2-devel@lists.01.org>
> > > Subject: Re: [edk2] Failed to clear configuration in Ip4Config2
> > > Protocol
> > >
> > > Hello All,
> > >
> > > Could you please anyone provide comment on this?
> > >
> > > Thank you,
> > > karunakar
> > >
> > > From: Karunakar P
> > > Sent: Wednesday, September 13, 2017 7:04 PM
> > > To: 'edk2-devel@lists.01.org'
> > > Subject: RE: RE: Failed to clear configuration in Ip4Config2
> > > Protocol
> > >
> > > Hello All,
> > >
> > > I was trying to verify the feature "Allow SetData to clear
> > > configuration in Ip4Config2/Ip6Config Protocol" , But SetData
> > > returns with Write Protected Error Status
> > >
> > > [Steps followed]
> > >
> > > 1.       I've taken the above feature changes.
> > >
> > > 2.       I've a UEFI test Application which call to SetData with DataSize is 0
> and
> > > Data is NULL
> > >
> > >     Status = Ip4Cfg2->SetData (
> > >
> > >                         Ip4Cfg2,
> > >
> > >                         Ip4Config2DataTypeManualAddress,
> > >
> > >                         0,
> > >
> > >                         0
> > >
> > >                         );
> > >
> > > 3.       But SetData returns with Write Protected Error Status        // Status =
> > > Write Protected
> > >
> > > 4.        Faced the same error for setting Gateway & DnsServer
> > >
> > > Guess the return is happening from
> > > Ip4Config2SetManualAddress() ->
> > > ...
> > >   if (Instance->Policy != Ip4Config2PolicyStatic) {
> > >     return EFI_WRITE_PROTECTED;
> > >   }
> > > ...
> > >
> > > Could you please help on this whether am I missing anything or
> > > anything else need to be done to resolve this?
> > >
> > > Thanks,
> > > karunakar
> > >
> > >
> > > From: Karunakar P
> > > Sent: Wednesday, September 13, 2017 7:00 PM
> > > To: edk2-devel@lists.01.org<mailto:edk2-devel@lists.01.org>
> > > Subject: RE: Failed to clear configuration in Ip4Config2 Protocol
> > >
> > > Hello All,
> > >
> > > I was trying to verify the feature "Allow SetData to clear
> > > configuration in Ip4Config2/Ip6Config Protocol" , But SetData
> > > returns with Write Protected Error Status
> > >
> > > [Steps followed]
> > >
> > > 1.       I've taken the above feature changes.
> > >
> > > 2.       I've a UEFI test Application which call to SetData with DataSize is 0
> and
> > > Data is NULL
> > >
> > >     Status = Ip4Cfg2->SetData (
> > >
> > >                         Ip4Cfg2,
> > >
> > >                         Ip4Config2DataTypeManualAddress,
> > >
> > >                         0,
> > >
> > >                         0
> > >
> > >                         );
> > >
> > > 3.       But SetData returns with Write Protected Error Status        // Status =
> > > Write Protected
> > >
> > > 4.        Faced the same error for setting Gateway &DnsServer
> > >
> > > Guess the error is happening from
> > >
> > >
> > > Thanks,
> > > karunakar
> > > _______________________________________________
> > > edk2-devel mailing list
> > > edk2-devel@lists.01.org
> > > https://lists.01.org/mailman/listinfo/edk2-devel
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