1 /*
2  * Copyright (C) 2021 Huawei Device Co., Ltd.
3  * Licensed under the Apache License, Version 2.0 (the "License");
4  * you may not use this file except in compliance with the License.
5  * You may obtain a copy of the License at
6  *
7  *     http://www.apache.org/licenses/LICENSE-2.0
8  *
9  * Unless required by applicable law or agreed to in writing, software
10  * distributed under the License is distributed on an "AS IS" BASIS,
11  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12  * See the License for the specific language governing permissions and
13  * limitations under the License.
14  */
15 
16 #ifndef OHOS_DHCP_MESSAGE_H
17 #define OHOS_DHCP_MESSAGE_H
18 
19 #include <stdint.h>
20 #include "dhcp_s_define.h"
21 #include "dhcp_option.h"
22 
23 #define BOOTREQUEST 1
24 #define BOOTREPLY 2
25 
26 #define DHCP_MSG_HEADER_SIZE 236
27 
28 enum DhcpMessageType {
29     DHCPDISCOVER = 1,
30     DHCPOFFER = 2,
31     DHCPREQUEST = 3,
32     DHCPDECLINE = 4,
33     DHCPACK = 5,
34     DHCPNAK = 6,
35     DHCPRELEASE = 7,
36     DHCPINFORM = 8
37 };
38 
39 enum DhcpReplyType {
40     REPLY_NONE = 0,
41     REPLY_OFFER,
42     REPLY_ACK,
43     REPLY_NAK,
44 };
45 
46 typedef struct DhcpMessage DhcpMessage;
47 struct DhcpMessage {
48     uint8_t op;
49     uint8_t htype;
50     uint8_t hlen;
51     uint8_t hops;
52     uint32_t xid;
53     uint16_t secs;
54     uint16_t flags;
55     uint32_t ciaddr;
56     uint32_t yiaddr;
57     uint32_t siaddr;
58     uint32_t giaddr;
59 
60     uint8_t chaddr[DHCP_HWADDR_LENGTH];
61 
62     uint8_t sname[DHCP_HOST_NAME_LENGTH];
63     uint8_t file[DHCP_BOOT_FILE_LENGTH];
64     uint8_t options[DHCP_OPTIONS_SIZE];
65 };
66 typedef struct DhcpMessage *PDhcpMessage;
67 
68 typedef struct DhcpMsgInfo DhcpMsgInfo;
69 struct DhcpMsgInfo {
70     DhcpMessage packet;
71     int length;
72     DhcpOptionList options;
73 };
74 typedef struct DhcpMsgInfo *PDhcpMsgInfo;
75 
76 #endif
77