Re: [edk2-devel] [PATCH] NetworkPkg/Ip4Dxe: Fix Reset To Default

["Ashish Singhal via groups.io" <ashishsingha=nvidia.com@groups.io>]

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I do not recommend doing that. Setting policy via SetData does enough to wipe out any previous manual configuration and that is the goal for reset to default.
________________________________
From: Kasbekar, Saloni <saloni.kasbekar@intel.com>
Sent: Friday, January 5, 2024 2:30 AM
To: Ashish Singhal <ashishsingha@nvidia.com>; devel@edk2.groups.io <devel@edk2.groups.io>; Clark-williams, Zachary <zachary.clark-williams@intel.com>; Jeff Brasen <jbrasen@nvidia.com>
Subject: RE: [PATCH] NetworkPkg/Ip4Dxe: Fix Reset To Default

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Makes sense. Should we also set IfrNvData->DhcpEnable = TRUE when updating the Policy then?



From: Ashish Singhal <ashishsingha@nvidia.com>
Sent: Wednesday, January 3, 2024 8:52 AM
To: Kasbekar, Saloni <saloni.kasbekar@intel.com>; devel@edk2.groups.io; Clark-williams, Zachary <zachary.clark-williams@intel.com>; Jeff Brasen <jbrasen@nvidia.com>
Subject: Re: [PATCH] NetworkPkg/Ip4Dxe: Fix Reset To Default



Hello Saloni,



Thanks for the feedback. After the reset, or when we disable configure from menu, GetData returns policy to static as the enum value is 0. However, setting value as static does not have any benefit as it forces to reuse the old network settings. Using DHCP really mimics the reset behavior that we see without any configuration done manually.



Thanks

Ashish



________________________________

From: Kasbekar, Saloni <saloni.kasbekar@intel.com<mailto:saloni.kasbekar@intel.com>>
Sent: Tuesday, January 2, 2024 1:47 PM
To: Ashish Singhal <ashishsingha@nvidia.com<mailto:ashishsingha@nvidia.com>>; devel@edk2.groups.io<mailto:devel@edk2.groups.io> <devel@edk2.groups.io<mailto:devel@edk2.groups.io>>; Clark-williams, Zachary <zachary.clark-williams@intel.com<mailto:zachary.clark-williams@intel.com>>; Jeff Brasen <jbrasen@nvidia.com<mailto:jbrasen@nvidia.com>>
Subject: RE: [PATCH] NetworkPkg/Ip4Dxe: Fix Reset To Default



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Hi Ashish,



+    Ip4NvData->Policy = Ip4Config2PolicyDhcp;

+    Status            = Ip4Cfg2->SetData (

+                                   Ip4Cfg2,

+                                   Ip4Config2DataTypePolicy,

+                                   sizeof (EFI_IP4_CONFIG2_POLICY),

+                                   &Ip4NvData->Policy

+                                   );



Here we’re assuming IfrFormNvData->DhcpEnable is TRUE. Should we check it before setting the policy and calling SetData()?



Thanks,

Saloni





From: Ashish Singhal <ashishsingha@nvidia.com<mailto:ashishsingha@nvidia.com>>
Sent: Monday, January 1, 2024 8:48 AM
To: devel@edk2.groups.io<mailto:devel@edk2.groups.io>; Kasbekar, Saloni <saloni.kasbekar@intel.com<mailto:saloni.kasbekar@intel.com>>; Clark-williams, Zachary <zachary.clark-williams@intel.com<mailto:zachary.clark-williams@intel.com>>; Jeff Brasen <jbrasen@nvidia.com<mailto:jbrasen@nvidia.com>>
Subject: Re: [PATCH] NetworkPkg/Ip4Dxe: Fix Reset To Default



Hello,



Checking again for some feedback on this.



Thanks

Ashish



________________________________

From: Ashish Singhal <ashishsingha@nvidia.com<mailto:ashishsingha@nvidia.com>>
Sent: Thursday, December 14, 2023 4:42 PM
To: devel@edk2.groups.io<mailto:devel@edk2.groups.io> <devel@edk2.groups.io<mailto:devel@edk2.groups.io>>; saloni.kasbekar@intel.com<mailto:saloni.kasbekar@intel.com> <saloni.kasbekar@intel.com<mailto:saloni.kasbekar@intel.com>>; zachary.clark-williams@intel.com<mailto:zachary.clark-williams@intel.com> <zachary.clark-williams@intel.com<mailto:zachary.clark-williams@intel.com>>; Jeff Brasen <jbrasen@nvidia.com<mailto:jbrasen@nvidia.com>>
Cc: Ashish Singhal <ashishsingha@nvidia.com<mailto:ashishsingha@nvidia.com>>
Subject: [PATCH] NetworkPkg/Ip4Dxe: Fix Reset To Default



Exercising reset to default does not reset the settings.
Add handler code for the case where configuration is
disabled.

Signed-off-by: Ashish Singhal <ashishsingha@nvidia.com<mailto:ashishsingha@nvidia.com>>
---
 NetworkPkg/Ip4Dxe/Ip4Config2Nv.c | 25 +++++++++++++++++++++++++
 1 file changed, 25 insertions(+)

diff --git a/NetworkPkg/Ip4Dxe/Ip4Config2Nv.c b/NetworkPkg/Ip4Dxe/Ip4Config2Nv.c
index e0b6a4d4a9..dac5817b7c 100644
--- a/NetworkPkg/Ip4Dxe/Ip4Config2Nv.c
+++ b/NetworkPkg/Ip4Dxe/Ip4Config2Nv.c
@@ -586,6 +586,31 @@ Ip4Config2ConvertIfrNvDataToConfigNvData (
   }

   if (IfrFormNvData->Configure != TRUE) {
+    if (Ip4NvData->DnsAddress != NULL) {
+      FreePool (Ip4NvData->DnsAddress);
+      Ip4NvData->DnsAddress      = NULL;
+      Ip4NvData->DnsAddressCount = 0;
+    }
+
+    if (Ip4NvData->GatewayAddress != NULL) {
+      FreePool (Ip4NvData->GatewayAddress);
+      Ip4NvData->GatewayAddress      = NULL;
+      Ip4NvData->GatewayAddressCount = 0;
+    }
+
+    if (Ip4NvData->ManualAddress != NULL) {
+      FreePool (Ip4NvData->ManualAddress);
+      Ip4NvData->ManualAddress      = NULL;
+      Ip4NvData->ManualAddressCount = 0;
+    }
+
+    Ip4NvData->Policy = Ip4Config2PolicyDhcp;
+    Status            = Ip4Cfg2->SetData (
+                                   Ip4Cfg2,
+                                   Ip4Config2DataTypePolicy,
+                                   sizeof (EFI_IP4_CONFIG2_POLICY),
+                                   &Ip4NvData->Policy
+                                   );
     return EFI_SUCCESS;
   }

--
2.17.1

Hello,

Hello Saloni,


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