From f215e02bf85f68d3a6106c2a1f4f7f063f819064 Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Thu, 11 Apr 2024 10:17:27 +0200
Subject: Adding upstream version 7.0.14-dfsg.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 .../Devices/EFI/Firmware/NetworkPkg/SnpDxe/Stop.c  | 120 +++++++++++++++++++++
 1 file changed, 120 insertions(+)
 create mode 100644 src/VBox/Devices/EFI/Firmware/NetworkPkg/SnpDxe/Stop.c

(limited to 'src/VBox/Devices/EFI/Firmware/NetworkPkg/SnpDxe/Stop.c')

diff --git a/src/VBox/Devices/EFI/Firmware/NetworkPkg/SnpDxe/Stop.c b/src/VBox/Devices/EFI/Firmware/NetworkPkg/SnpDxe/Stop.c
new file mode 100644
index 00000000..b44f7cc2
--- /dev/null
+++ b/src/VBox/Devices/EFI/Firmware/NetworkPkg/SnpDxe/Stop.c
@@ -0,0 +1,120 @@
+/** @file
+    Implementation of stopping a network interface.
+
+Copyright (c) 2004 - 2018, Intel Corporation. All rights reserved.<BR>
+SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+#include "Snp.h"
+
+
+/**
+  Call UNDI to stop the interface and changes the snp state.
+
+  @param  Snp   Pointer to snp driver structure
+
+  @retval EFI_SUCCESS            The network interface was stopped.
+  @retval EFI_DEVICE_ERROR       SNP is not initialized.
+
+**/
+EFI_STATUS
+PxeStop (
+  SNP_DRIVER *Snp
+  )
+{
+  Snp->Cdb.OpCode     = PXE_OPCODE_STOP;
+  Snp->Cdb.OpFlags    = PXE_OPFLAGS_NOT_USED;
+  Snp->Cdb.CPBsize    = PXE_CPBSIZE_NOT_USED;
+  Snp->Cdb.DBsize     = PXE_DBSIZE_NOT_USED;
+  Snp->Cdb.CPBaddr    = PXE_CPBADDR_NOT_USED;
+  Snp->Cdb.DBaddr     = PXE_DBADDR_NOT_USED;
+  Snp->Cdb.StatCode   = PXE_STATCODE_INITIALIZE;
+  Snp->Cdb.StatFlags  = PXE_STATFLAGS_INITIALIZE;
+  Snp->Cdb.IFnum      = Snp->IfNum;
+  Snp->Cdb.Control    = PXE_CONTROL_LAST_CDB_IN_LIST;
+
+  //
+  // Issue UNDI command
+  //
+  DEBUG ((EFI_D_NET, "\nsnp->undi.stop()  "));
+
+  (*Snp->IssueUndi32Command) ((UINT64)(UINTN) &Snp->Cdb);
+
+  if (Snp->Cdb.StatCode != PXE_STATCODE_SUCCESS) {
+    DEBUG (
+      (EFI_D_WARN,
+      "\nsnp->undi.stop()  %xh:%xh\n",
+      Snp->Cdb.StatFlags,
+      Snp->Cdb.StatCode)
+      );
+
+    return EFI_DEVICE_ERROR;
+  }
+  //
+  // Set simple network state to Started and return success.
+  //
+  Snp->Mode.State = EfiSimpleNetworkStopped;
+  return EFI_SUCCESS;
+}
+
+
+/**
+  Changes the state of a network interface from "started" to "stopped."
+
+  This function stops a network interface. This call is only valid if the network
+  interface is in the started state. If the network interface was successfully
+  stopped, then EFI_SUCCESS will be returned.
+
+  @param  This                    A pointer to the EFI_SIMPLE_NETWORK_PROTOCOL
+                                  instance.
+
+
+  @retval EFI_SUCCESS             The network interface was stopped.
+  @retval EFI_NOT_STARTED         The network interface has not been started.
+  @retval EFI_INVALID_PARAMETER   This parameter was NULL or did not point to a
+                                  valid EFI_SIMPLE_NETWORK_PROTOCOL structure.
+  @retval EFI_DEVICE_ERROR        The command could not be sent to the network
+                                  interface.
+  @retval EFI_UNSUPPORTED         This function is not supported by the network
+                                  interface.
+
+**/
+EFI_STATUS
+EFIAPI
+SnpUndi32Stop (
+  IN EFI_SIMPLE_NETWORK_PROTOCOL *This
+  )
+{
+  SNP_DRIVER  *Snp;
+  EFI_TPL     OldTpl;
+  EFI_STATUS  Status;
+
+  if (This == NULL) {
+    return EFI_INVALID_PARAMETER;
+  }
+
+  Snp = EFI_SIMPLE_NETWORK_DEV_FROM_THIS (This);
+
+  OldTpl = gBS->RaiseTPL (TPL_CALLBACK);
+
+  switch (Snp->Mode.State) {
+  case EfiSimpleNetworkStarted:
+    break;
+
+  case EfiSimpleNetworkStopped:
+    Status = EFI_NOT_STARTED;
+    goto ON_EXIT;
+
+  default:
+    Status = EFI_DEVICE_ERROR;
+    goto ON_EXIT;
+  }
+
+  Status = PxeStop (Snp);
+
+ON_EXIT:
+  gBS->RestoreTPL (OldTpl);
+
+  return Status;
+}
-- 
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