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1 | /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ |
2 | ||
3 | #pragma once | |
4 | ||
5 | /*** | |
6 | This file is part of systemd. | |
7 | ||
8 | Copyright (C) 2015 Tom Gundersen <teg@jklmen> | |
9 | ||
10 | systemd is free software; you can redistribute it and/or modify it | |
11 | under the terms of the GNU Lesser General Public License as published by | |
12 | the Free Software Foundation; either version 2.1 of the License, or | |
13 | (at your option) any later version. | |
14 | ||
15 | systemd is distributed in the hope that it will be useful, but | |
16 | WITHOUT ANY WARRANTY; without even the implied warranty of | |
17 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
18 | Lesser General Public License for more details. | |
19 | ||
20 | You should have received a copy of the GNU Lesser General Public License | |
21 | along with systemd; If not, see <http://www.gnu.org/licenses/>. | |
22 | ***/ | |
23 | ||
07630cea | 24 | #include "sd-id128.h" |
764aad62 | 25 | |
c1ff5570 | 26 | #include "macro.h" |
764aad62 | 27 | #include "sparse-endian.h" |
9ee18af3 | 28 | #include "unaligned.h" |
764aad62 TG |
29 | |
30 | /* RFC 3315 section 9.1: | |
31 | * A DUID can be no more than 128 octets long (not including the type code). | |
32 | */ | |
33 | #define MAX_DUID_LEN 128 | |
34 | ||
35 | struct duid { | |
36 | uint16_t type; | |
37 | union { | |
38 | struct { | |
39 | /* DHCP6_DUID_LLT */ | |
40 | uint16_t htype; | |
41 | uint32_t time; | |
42 | uint8_t haddr[0]; | |
43 | } _packed_ llt; | |
44 | struct { | |
45 | /* DHCP6_DUID_EN */ | |
46 | uint32_t pen; | |
47 | uint8_t id[8]; | |
48 | } _packed_ en; | |
49 | struct { | |
50 | /* DHCP6_DUID_LL */ | |
51 | int16_t htype; | |
52 | uint8_t haddr[0]; | |
53 | } _packed_ ll; | |
54 | struct { | |
55 | /* DHCP6_DUID_UUID */ | |
56 | sd_id128_t uuid; | |
57 | } _packed_ uuid; | |
58 | struct { | |
59 | uint8_t data[MAX_DUID_LEN]; | |
60 | } _packed_ raw; | |
61 | }; | |
62 | } _packed_; | |
cfb5b380 TG |
63 | |
64 | int dhcp_identifier_set_duid_en(struct duid *duid, size_t *len); | |
9ee18af3 | 65 | int dhcp_identifier_set_iaid(int ifindex, uint8_t *mac, size_t mac_len, void *_id); |