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Merge pull request #25168 from valentindavid/valentindavid/umount-move-recursive...
[thirdparty/systemd.git] / src / libsystemd-network / dhcp6-protocol.h
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db9ecf05 1/* SPDX-License-Identifier: LGPL-2.1-or-later */
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2#pragma once
3
4/***
810adae9 5 Copyright © 2014 Intel Corporation. All rights reserved.
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6***/
7
dd5e9378 8#include <errno.h>
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9#include <netinet/ip6.h>
10#include <netinet/udp.h>
11
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12#include "macro.h"
13#include "sparse-endian.h"
14
15struct DHCP6Message {
16 union {
17 struct {
18 uint8_t type;
19 uint8_t _pad[3];
20 } _packed_;
21 be32_t transaction_id;
22 };
3bc424a3 23 uint8_t options[];
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24} _packed_;
25
26typedef struct DHCP6Message DHCP6Message;
27
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28#define DHCP6_MIN_OPTIONS_SIZE \
29 1280 - sizeof(struct ip6_hdr) - sizeof(struct udphdr)
30
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31#define IN6ADDR_ALL_DHCP6_RELAY_AGENTS_AND_SERVERS_INIT \
32 { { { 0xff, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \
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33 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x02 } } }
34
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35enum {
36 DHCP6_PORT_SERVER = 547,
37 DHCP6_PORT_CLIENT = 546,
38};
39
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40#define DHCP6_INF_TIMEOUT (1 * USEC_PER_SEC)
41#define DHCP6_INF_MAX_RT (120 * USEC_PER_SEC)
42#define DHCP6_SOL_MAX_DELAY (1 * USEC_PER_SEC)
43#define DHCP6_SOL_TIMEOUT (1 * USEC_PER_SEC)
44#define DHCP6_SOL_MAX_RT (120 * USEC_PER_SEC)
45#define DHCP6_REQ_TIMEOUT (1 * USEC_PER_SEC)
46#define DHCP6_REQ_MAX_RT (120 * USEC_PER_SEC)
7246333c 47#define DHCP6_REQ_MAX_RC 10
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48#define DHCP6_REN_TIMEOUT (10 * USEC_PER_SEC)
49#define DHCP6_REN_MAX_RT (600 * USEC_PER_SEC)
50#define DHCP6_REB_TIMEOUT (10 * USEC_PER_SEC)
51#define DHCP6_REB_MAX_RT (600 * USEC_PER_SEC)
d1b0afe3 52
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53typedef enum DHCP6State {
54 DHCP6_STATE_STOPPED,
55 DHCP6_STATE_INFORMATION_REQUEST,
56 DHCP6_STATE_SOLICITATION,
57 DHCP6_STATE_REQUEST,
58 DHCP6_STATE_BOUND,
59 DHCP6_STATE_RENEW,
60 DHCP6_STATE_REBIND,
b895aa5f 61 DHCP6_STATE_STOPPING,
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62 _DHCP6_STATE_MAX,
63 _DHCP6_STATE_INVALID = -EINVAL,
64} DHCP6State;
139b011a 65
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66/* https://www.iana.org/assignments/dhcpv6-parameters/dhcpv6-parameters.xhtml#dhcpv6-parameters-1 */
67typedef enum DHCP6MessageType {
68 DHCP6_MESSAGE_SOLICIT = 1, /* RFC 8415 */
69 DHCP6_MESSAGE_ADVERTISE = 2, /* RFC 8415 */
70 DHCP6_MESSAGE_REQUEST = 3, /* RFC 8415 */
71 DHCP6_MESSAGE_CONFIRM = 4, /* RFC 8415 */
72 DHCP6_MESSAGE_RENEW = 5, /* RFC 8415 */
73 DHCP6_MESSAGE_REBIND = 6, /* RFC 8415 */
74 DHCP6_MESSAGE_REPLY = 7, /* RFC 8415 */
75 DHCP6_MESSAGE_RELEASE = 8, /* RFC 8415 */
76 DHCP6_MESSAGE_DECLINE = 9, /* RFC 8415 */
77 DHCP6_MESSAGE_RECONFIGURE = 10, /* RFC 8415 */
78 DHCP6_MESSAGE_INFORMATION_REQUEST = 11, /* RFC 8415 */
79 DHCP6_MESSAGE_RELAY_FORWARD = 12, /* RFC 8415 */
80 DHCP6_MESSAGE_RELAY_REPLY = 13, /* RFC 8415 */
81 DHCP6_MESSAGE_LEASE_QUERY = 14, /* RFC 5007 */
82 DHCP6_MESSAGE_LEASE_QUERY_REPLY = 15, /* RFC 5007 */
83 DHCP6_MESSAGE_LEASE_QUERY_DONE = 16, /* RFC 5460 */
84 DHCP6_MESSAGE_LEASE_QUERY_DATA = 17, /* RFC 5460 */
85 DHCP6_MESSAGE_RECONFIGURE_REQUEST = 18, /* RFC 6977 */
86 DHCP6_MESSAGE_RECONFIGURE_REPLY = 19, /* RFC 6977 */
87 DHCP6_MESSAGE_DHCPV4_QUERY = 20, /* RFC 7341 */
88 DHCP6_MESSAGE_DHCPV4_RESPONSE = 21, /* RFC 7341 */
89 DHCP6_MESSAGE_ACTIVE_LEASE_QUERY = 22, /* RFC 7653 */
90 DHCP6_MESSAGE_START_TLS = 23, /* RFC 7653 */
91 DHCP6_MESSAGE_BINDING_UPDATE = 24, /* RFC 8156 */
92 DHCP6_MESSAGE_BINDING_REPLY = 25, /* RFC 8156 */
93 DHCP6_MESSAGE_POOL_REQUEST = 26, /* RFC 8156 */
94 DHCP6_MESSAGE_POOL_RESPONSE = 27, /* RFC 8156 */
95 DHCP6_MESSAGE_UPDATE_REQUEST = 28, /* RFC 8156 */
96 DHCP6_MESSAGE_UPDATE_REQUEST_ALL = 29, /* RFC 8156 */
97 DHCP6_MESSAGE_UPDATE_DONE = 30, /* RFC 8156 */
98 DHCP6_MESSAGE_CONNECT = 31, /* RFC 8156 */
99 DHCP6_MESSAGE_CONNECT_REPLY = 32, /* RFC 8156 */
100 DHCP6_MESSAGE_DISCONNECT = 33, /* RFC 8156 */
101 DHCP6_MESSAGE_STATE = 34, /* RFC 8156 */
102 DHCP6_MESSAGE_CONTACT = 35, /* RFC 8156 */
103 _DHCP6_MESSAGE_TYPE_MAX,
3f09d563 104 _DHCP6_MESSAGE_TYPE_INVALID = -EINVAL,
59f1ded8 105} DHCP6MessageType;
139b011a 106
dd5e9378 107typedef enum DHCP6NTPSubOption {
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108 DHCP6_NTP_SUBOPTION_SRV_ADDR = 1,
109 DHCP6_NTP_SUBOPTION_MC_ADDR = 2,
110 DHCP6_NTP_SUBOPTION_SRV_FQDN = 3,
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111 _DHCP6_NTP_SUBOPTION_MAX,
112 _DHCP6_NTP_SUBOPTION_INVALID = -EINVAL,
dd5e9378 113} DHCP6NTPSubOption;
6599680e 114
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115/*
116 * RFC 8415, RFC 5007 and RFC 7653 status codes:
117 * https://www.iana.org/assignments/dhcpv6-parameters/dhcpv6-parameters.xhtml#dhcpv6-parameters-5
118 */
dd5e9378 119typedef enum DHCP6Status {
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120 DHCP6_STATUS_SUCCESS = 0,
121 DHCP6_STATUS_UNSPEC_FAIL = 1,
122 DHCP6_STATUS_NO_ADDRS_AVAIL = 2,
123 DHCP6_STATUS_NO_BINDING = 3,
124 DHCP6_STATUS_NOT_ON_LINK = 4,
125 DHCP6_STATUS_USE_MULTICAST = 5,
126 DHCP6_STATUS_NO_PREFIX_AVAIL = 6,
127 DHCP6_STATUS_UNKNOWN_QUERY_TYPE = 7,
128 DHCP6_STATUS_MALFORMED_QUERY = 8,
129 DHCP6_STATUS_NOT_CONFIGURED = 9,
130 DHCP6_STATUS_NOT_ALLOWED = 10,
131 DHCP6_STATUS_QUERY_TERMINATED = 11,
132 DHCP6_STATUS_DATA_MISSING = 12,
133 DHCP6_STATUS_CATCHUP_COMPLETE = 13,
134 DHCP6_STATUS_NOT_SUPPORTED = 14,
135 DHCP6_STATUS_TLS_CONNECTION_REFUSED = 15,
136 DHCP6_STATUS_ADDRESS_IN_USE = 16,
137 DHCP6_STATUS_CONFIGURATION_CONFLICT = 17,
138 DHCP6_STATUS_MISSING_BINDING_INFORMATION = 18,
139 DHCP6_STATUS_OUTDATED_BINDING_INFORMATION = 19,
140 DHCP6_STATUS_SERVER_SHUTTING_DOWN = 20,
141 DHCP6_STATUS_DNS_UPDATE_NOT_SUPPORTED = 21,
142 DHCP6_STATUS_EXCESSIVE_TIME_SKEW = 22,
dd5e9378 143 _DHCP6_STATUS_MAX,
3f09d563 144 _DHCP6_STATUS_INVALID = -EINVAL,
dd5e9378 145} DHCP6Status;
8006aa32 146
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147typedef enum DHCP6FQDNFlag {
148 DHCP6_FQDN_FLAG_S = 1 << 0,
149 DHCP6_FQDN_FLAG_O = 1 << 1,
150 DHCP6_FQDN_FLAG_N = 1 << 2,
151} DHCP6FQDNFlag;
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152
153const char *dhcp6_state_to_string(DHCP6State s) _const_;
154const char *dhcp6_message_type_to_string(DHCP6MessageType s) _const_;
155DHCP6MessageType dhcp6_message_type_from_string(const char *s) _pure_;
156const char *dhcp6_message_status_to_string(DHCP6Status s) _const_;
157DHCP6Status dhcp6_message_status_from_string(const char *s) _pure_;
1929c1fc 158int dhcp6_message_status_to_errno(DHCP6Status s);