1 /** @file
2   The header file of IScsiDhcp.
3 
4 Copyright (c) 2004 - 2016, Intel Corporation. All rights reserved.<BR>
5 This program and the accompanying materials
6 are licensed and made available under the terms and conditions of the BSD License
7 which accompanies this distribution.  The full text of the license may be found at
8 http://opensource.org/licenses/bsd-license.php
9 
10 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
11 WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
12 
13 **/
14 
15 #ifndef _ISCSI_DHCP_H_
16 #define _ISCSI_DHCP_H_
17 
18 #include <Protocol/Dhcp4.h>
19 
20 #define ISCSI_ROOT_PATH_ID              "iscsi:"
21 #define ISCSI_ROOT_PATH_FIELD_DELIMITER ':'
22 
23 #define RP_FIELD_IDX_SERVERNAME         0
24 #define RP_FIELD_IDX_PROTOCOL           1
25 #define RP_FIELD_IDX_PORT               2
26 #define RP_FIELD_IDX_LUN                3
27 #define RP_FIELD_IDX_TARGETNAME         4
28 #define RP_FIELD_IDX_MAX                5
29 
30 typedef struct _ISCSI_ROOT_PATH_FIELD {
31   CHAR8 *Str;
32   UINT8 Len;
33 } ISCSI_ROOT_PATH_FIELD;
34 
35 /**
36   Parse the DHCP ACK to get the address configuration and DNS information.
37 
38   @param[in]       Image            The handle of the driver image.
39   @param[in]       Controller       The handle of the controller;
40   @param[in, out]  ConfigData       The session configuration data.
41 
42   @retval EFI_SUCCESS           The DNS information is got from the DHCP ACK.
43   @retval EFI_OUT_OF_RESOURCES  Failed to allocate memory.
44   @retval EFI_NO_MEDIA          There was a media error.
45   @retval Others                Other errors as indicated.
46 
47 **/
48 EFI_STATUS
49 IScsiDoDhcp (
50   IN     EFI_HANDLE                 Image,
51   IN     EFI_HANDLE                 Controller,
52   IN OUT ISCSI_SESSION_CONFIG_DATA  *ConfigData
53   );
54 
55 #endif
56