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aff33962 | 1 | /* dnsmasq is Copyright (c) 2000-2015 Simon Kelley |
572b41eb SK |
2 | |
3 | This program is free software; you can redistribute it and/or modify | |
4 | it under the terms of the GNU General Public License as published by | |
5 | the Free Software Foundation; version 2 dated June, 1991, or | |
6 | (at your option) version 3 dated 29 June, 2007. | |
7 | ||
8 | This program is distributed in the hope that it will be useful, | |
9 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
10 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
11 | GNU General Public License for more details. | |
12 | ||
13 | You should have received a copy of the GNU General Public License | |
14 | along with this program. If not, see <http://www.gnu.org/licenses/>. | |
15 | */ | |
c72daea8 SK |
16 | #define DHCP_SERVER_PORT 67 |
17 | #define DHCP_CLIENT_PORT 68 | |
18 | #define DHCP_SERVER_ALTPORT 1067 | |
19 | #define DHCP_CLIENT_ALTPORT 1068 | |
20 | #define PXE_PORT 4011 | |
572b41eb SK |
21 | |
22 | #define BOOTREQUEST 1 | |
23 | #define BOOTREPLY 2 | |
24 | #define DHCP_COOKIE 0x63825363 | |
25 | ||
26 | /* The Linux in-kernel DHCP client silently ignores any packet | |
27 | smaller than this. Sigh........... */ | |
28 | #define MIN_PACKETSZ 300 | |
29 | ||
30 | #define OPTION_PAD 0 | |
31 | #define OPTION_NETMASK 1 | |
32 | #define OPTION_ROUTER 3 | |
33 | #define OPTION_DNSSERVER 6 | |
34 | #define OPTION_HOSTNAME 12 | |
35 | #define OPTION_DOMAINNAME 15 | |
36 | #define OPTION_BROADCAST 28 | |
37 | #define OPTION_VENDOR_CLASS_OPT 43 | |
38 | #define OPTION_REQUESTED_IP 50 | |
39 | #define OPTION_LEASE_TIME 51 | |
40 | #define OPTION_OVERLOAD 52 | |
41 | #define OPTION_MESSAGE_TYPE 53 | |
42 | #define OPTION_SERVER_IDENTIFIER 54 | |
43 | #define OPTION_REQUESTED_OPTIONS 55 | |
44 | #define OPTION_MESSAGE 56 | |
45 | #define OPTION_MAXMESSAGE 57 | |
46 | #define OPTION_T1 58 | |
47 | #define OPTION_T2 59 | |
48 | #define OPTION_VENDOR_ID 60 | |
49 | #define OPTION_CLIENT_ID 61 | |
50 | #define OPTION_SNAME 66 | |
51 | #define OPTION_FILENAME 67 | |
52 | #define OPTION_USER_CLASS 77 | |
53 | #define OPTION_CLIENT_FQDN 81 | |
54 | #define OPTION_AGENT_ID 82 | |
55 | #define OPTION_ARCH 93 | |
56 | #define OPTION_PXE_UUID 97 | |
57 | #define OPTION_SUBNET_SELECT 118 | |
58 | #define OPTION_DOMAIN_SEARCH 119 | |
59 | #define OPTION_SIP_SERVER 120 | |
60 | #define OPTION_VENDOR_IDENT 124 | |
61 | #define OPTION_VENDOR_IDENT_OPT 125 | |
62 | #define OPTION_END 255 | |
63 | ||
64 | #define SUBOPT_CIRCUIT_ID 1 | |
65 | #define SUBOPT_REMOTE_ID 2 | |
66 | #define SUBOPT_SUBNET_SELECT 5 /* RFC 3527 */ | |
67 | #define SUBOPT_SUBSCR_ID 6 /* RFC 3393 */ | |
68 | #define SUBOPT_SERVER_OR 11 /* RFC 5107 */ | |
69 | ||
70 | #define SUBOPT_PXE_BOOT_ITEM 71 /* PXE standard */ | |
71 | #define SUBOPT_PXE_DISCOVERY 6 | |
72 | #define SUBOPT_PXE_SERVERS 8 | |
73 | #define SUBOPT_PXE_MENU 9 | |
74 | #define SUBOPT_PXE_MENU_PROMPT 10 | |
75 | ||
76 | #define DHCPDISCOVER 1 | |
77 | #define DHCPOFFER 2 | |
78 | #define DHCPREQUEST 3 | |
79 | #define DHCPDECLINE 4 | |
80 | #define DHCPACK 5 | |
81 | #define DHCPNAK 6 | |
82 | #define DHCPRELEASE 7 | |
83 | #define DHCPINFORM 8 | |
84 | ||
85 | #define BRDBAND_FORUM_IANA 3561 /* Broadband forum IANA enterprise */ | |
86 | ||
87 | #define DHCP_CHADDR_MAX 16 | |
88 | ||
89 | struct dhcp_packet { | |
90 | u8 op, htype, hlen, hops; | |
91 | u32 xid; | |
92 | u16 secs, flags; | |
93 | struct in_addr ciaddr, yiaddr, siaddr, giaddr; | |
94 | u8 chaddr[DHCP_CHADDR_MAX], sname[64], file[128]; | |
95 | u8 options[312]; | |
96 | }; |