blob: 0b9d9f5aa1e8a87e117c9ac904a374dde03309e7 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
|
/* This file is part of the KDE Libraries
Copyright (c) 2001 Malte Starostik <malte@kde.org>
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License version 2 as published by the Free Software Foundation.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public License
along with this library; see the file COPYING.LIB. If not, write to
the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301, USA.
*/
/* See RFC 2131 for details */
#ifndef __dhcp_h__
#define __dhcp_h__
#ifdef HAVE_STDINT_H
# include <stdint.h>
#endif
#define DHCP_OPT_LEN 312
struct dhcp_msg
{
#define DHCP_BOOTREQUEST 1
#define DHCP_BOOTREPLY 2
uint8_t op; /* operation */
uint8_t htype; /* hwaddr type */
uint8_t hlen; /* hwaddr len */
uint8_t hops;
uint32_t xid; /* transaction id */
uint16_t secs; /* seconds since protocol start */
#define DHCP_BROADCAST 1
uint16_t flags;
uint32_t ciaddr; /* client IP */
uint32_t yiaddr; /* "your" IP */
uint32_t siaddr; /* server IP */
uint32_t giaddr; /* gateway IP */
uint8_t chaddr[16]; /* client hwaddr */
uint8_t sname[64]; /* server name */
uint8_t file[128]; /* bootstrap file */
uint8_t options[DHCP_OPT_LEN];
};
/* first four bytes in options */
#define DHCP_MAGIC1 0x63
#define DHCP_MAGIC2 0x82
#define DHCP_MAGIC3 0x53
#define DHCP_MAGIC4 0x63
/* DHCP message types */
#define DHCP_DISCOVER 1
#define DHCP_OFFER 2
#define DHCP_REQUEST 3
#define DHCP_DECLINE 4
#define DHCP_ACK 5
#define DHCP_NAK 6
#define DHCP_RELEASE 7
#define DHCP_INFORM 8
/* option types */
#define DHCP_OPT_MSGTYPE 0x35
#define DHCP_OPT_PARAMREQ 0x37
#define DHCP_OPT_WPAD 0xfc
#define DHCP_OPT_END 0xff
#endif
|
