Import ArpDxe, Dhcp4Dxe, Ip4Dxe, Mtftp4Dxe, PxeBcDxe and PxeDhcp4Dxe.

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@3492 6f19259b-4bc3-4df7-8a09-765794883524
2007-07-30 02:37:10 +00:00
parent eca7eaf49b
commit 772db4bb33
113 changed files with 42735 additions and 302 deletions
--- a/MdeModulePkg/Universal/Network/PxeDhcp4Dxe/PxeDhcp4Run.c
+++ b/MdeModulePkg/Universal/Network/PxeDhcp4Dxe/PxeDhcp4Run.c
@@ -0,0 +1,191 @@
+/** @file
+
+Copyright (c) 2004 - 2007, Intel Corporation
+All rights reserved. This program and the accompanying materials
+are licensed and made available under the terms and conditions of the BSD License
+which accompanies this distribution.  The full text of the license may be found at
+http://opensource.org/licenses/bsd-license.php
+
+THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+
+Module Name:
+  PxeDhcp4Run.c
+
+Abstract:
+  Simplified entry point for starting basic PxeDhcp4 client operation.
+
+
+**/
+
+
+#include "PxeDhcp4.h"
+
+EFI_STATUS
+EFIAPI
+PxeDhcp4Run (
+  IN EFI_PXE_DHCP4_PROTOCOL *This,
+  IN OPTIONAL UINTN                  OpLen,
+  IN OPTIONAL VOID                   *OpList
+  )
+{
+  PXE_DHCP4_PRIVATE_DATA  *Private;
+  DHCP4_PACKET            *offer_list;
+  EFI_STATUS              efi_status;
+  EFI_IP_ADDRESS          zero_ip;
+  UINTN                   offers;
+  UINTN                   timeout;
+  UINTN                   n;
+  UINT16                  seconds;
+
+  //
+  // Validate parameters.
+  //
+  if (This == NULL || (OpLen != 0 && OpList == NULL) || (OpLen == 0 && OpList != NULL)) {
+    return EFI_INVALID_PARAMETER;
+  }
+
+  for (n = 0; n < OpLen;) {
+    switch (((UINT8 *) OpList)[n]) {
+    case DHCP4_PAD:
+      ++n;
+      continue;
+
+    case DHCP4_END:
+      ++n;
+      break;
+
+    default:
+      n += 2 + ((UINT8 *) OpList)[n + 1];
+      continue;
+    }
+
+    break;
+  }
+
+  if (n != OpLen) {
+    return EFI_INVALID_PARAMETER;
+  }
+  //
+  // Get pointer to instance data.
+  //
+  Private = PXE_DHCP4_PRIVATE_DATA_FROM_THIS (This);
+
+  if (Private == NULL) {
+    return EFI_INVALID_PARAMETER;
+  }
+
+  if (Private->PxeBc == NULL) {
+    return EFI_DEVICE_ERROR;
+  }
+  //
+  // Initialize DHCP discover packet.
+  //
+  efi_status = PxeDhcp4Setup (This, NULL);
+
+  if (EFI_ERROR (efi_status)) {
+    return efi_status;
+  }
+
+  for (n = 0; n < OpLen;) {
+    switch (((UINT8 *) OpList)[n]) {
+    case DHCP4_PAD:
+      ++n;
+      continue;
+
+    case DHCP4_END:
+      ++n;
+      break;
+
+    default:
+      efi_status = add_opt (
+                    &This->Data->Discover,
+                    (DHCP4_OP *) &(((UINT8 *) OpList)[n])
+                    );
+
+      if (EFI_ERROR (efi_status)) {
+        return efi_status;
+      }
+
+      n += 2 + ((UINT8 *) OpList)[n + 1];
+      continue;
+    }
+
+    break;
+  }
+  //
+  // Basic DHCP D.O.R.A.
+  // 1, 2, 4, 8, 16 & 32 second timeouts.
+  // Callback routine can be used to break out earlier.
+  //
+  ZeroMem (&zero_ip, sizeof (EFI_IP_ADDRESS));
+
+  for (timeout = 1;;) {
+    //
+    // Broadcast DHCP discover and wait for DHCP offers.
+    //
+    efi_status = PxeDhcp4Init (This, timeout, &offers, &offer_list);
+
+    if ((efi_status != EFI_SUCCESS) &&
+        (efi_status != EFI_TIMEOUT) &&
+        (efi_status != EFI_NO_RESPONSE)) {
+      return efi_status;
+    }
+    //
+    // Try to select from each DHCP or BOOTP offer.
+    //
+    for (n = 0; n < offers; ++n) {
+      //
+      // Ignore proxyDHCP offers.
+      //
+      if (!CompareMem (&offer_list[n].dhcp4.yiaddr, &zero_ip, 4)) {
+        continue;
+      }
+      //
+      // Issue DHCP Request and wait for DHCP Ack/Nak.
+      //
+      efi_status = PxeDhcp4Select (
+                    This,
+                    timeout,
+                    &offer_list[n]
+                    );
+
+      if (EFI_ERROR (efi_status)) {
+        continue;
+      }
+      //
+      // Exit when we have got our DHCP Ack.
+      //
+      if (This->Data->IsAck) {
+        return EFI_SUCCESS;
+      }
+    }
+    //
+    // No DHCP Acks.  Release DHCP Offer list storage.
+    //
+    if (offer_list != NULL) {
+      gBS->FreePool (offer_list);
+      offer_list = NULL;
+    }
+    //
+    // Try again until we have used up >= DHCP4_MAX_SECONDS.
+    //
+    if ((timeout <<= 1) > DHCP4_MAX_SECONDS) {
+      if (!EFI_ERROR (efi_status)) {
+        efi_status = EFI_TIMEOUT;
+      }
+
+      return efi_status;
+    }
+    //
+    // Next timeout value.
+    //
+    CopyMem (&seconds, &This->Data->Discover.dhcp4.secs, 2);
+
+    seconds = htons (htons (seconds) + timeout);
+
+    CopyMem (&This->Data->Discover.dhcp4.secs, &seconds, 2);
+  }
+}
+
+/* eof - PxeDhcp4Run.c */