]>
Commit | Line | Data |
---|---|---|
53e1b683 | 1 | /* SPDX-License-Identifier: LGPL-2.1+ */ |
764aad62 TG |
2 | #pragma once |
3 | ||
07630cea | 4 | #include "sd-id128.h" |
764aad62 | 5 | |
c1ff5570 | 6 | #include "macro.h" |
764aad62 | 7 | #include "sparse-endian.h" |
335f80a6 | 8 | #include "time-util.h" |
9ee18af3 | 9 | #include "unaligned.h" |
764aad62 | 10 | |
413708d1 | 11 | typedef enum DUIDType { |
413708d1 VK |
12 | DUID_TYPE_LLT = 1, |
13 | DUID_TYPE_EN = 2, | |
14 | DUID_TYPE_LL = 3, | |
15 | DUID_TYPE_UUID = 4, | |
16 | _DUID_TYPE_MAX, | |
17 | _DUID_TYPE_INVALID = -1, | |
18 | } DUIDType; | |
19 | ||
764aad62 TG |
20 | /* RFC 3315 section 9.1: |
21 | * A DUID can be no more than 128 octets long (not including the type code). | |
22 | */ | |
23 | #define MAX_DUID_LEN 128 | |
24 | ||
3b6a4e97 | 25 | /* https://tools.ietf.org/html/rfc3315#section-9.1 */ |
764aad62 | 26 | struct duid { |
413708d1 | 27 | be16_t type; |
764aad62 TG |
28 | union { |
29 | struct { | |
3b6a4e97 | 30 | /* DUID_TYPE_LLT */ |
9d7b8c66 YW |
31 | be16_t htype; |
32 | be32_t time; | |
764aad62 TG |
33 | uint8_t haddr[0]; |
34 | } _packed_ llt; | |
35 | struct { | |
3b6a4e97 | 36 | /* DUID_TYPE_EN */ |
9d7b8c66 | 37 | be32_t pen; |
764aad62 TG |
38 | uint8_t id[8]; |
39 | } _packed_ en; | |
40 | struct { | |
3b6a4e97 | 41 | /* DUID_TYPE_LL */ |
9d7b8c66 | 42 | be16_t htype; |
764aad62 TG |
43 | uint8_t haddr[0]; |
44 | } _packed_ ll; | |
45 | struct { | |
3b6a4e97 | 46 | /* DUID_TYPE_UUID */ |
764aad62 TG |
47 | sd_id128_t uuid; |
48 | } _packed_ uuid; | |
49 | struct { | |
50 | uint8_t data[MAX_DUID_LEN]; | |
51 | } _packed_ raw; | |
52 | }; | |
53 | } _packed_; | |
cfb5b380 | 54 | |
3b6a4e97 | 55 | int dhcp_validate_duid_len(uint16_t duid_type, size_t duid_len); |
335f80a6 YW |
56 | int dhcp_identifier_set_duid_llt(struct duid *duid, usec_t t, const uint8_t *addr, size_t addr_len, uint16_t arp_type, size_t *len); |
57 | int dhcp_identifier_set_duid_ll(struct duid *duid, const uint8_t *addr, size_t addr_len, uint16_t arp_type, size_t *len); | |
cfb5b380 | 58 | int dhcp_identifier_set_duid_en(struct duid *duid, size_t *len); |
27eba50e | 59 | int dhcp_identifier_set_duid_uuid(struct duid *duid, size_t *len); |
6d13616b | 60 | int dhcp_identifier_set_iaid(int ifindex, const uint8_t *mac, size_t mac_len, bool legacy_unstable_byteorder, void *_id); |